Restorative Dentistry & Endodontics

Research Articles

Effects of 3 different light-curing units on the physico-mechanical properties of bleach-shade resin composites: Azin Farzad, Shahin Kasraei, Sahebeh Haghi, Mahboubeh Masoumbeigi, Hassan Torabzadeh, Narges Panahandeh; Restor Dent Endod 2022;47(1):e9. Published online February 7, 2022; DOI: https://doi.org/10.5395/rde.2022.47.e9

Objectives

This study investigated the microhardness, flexural strength, and color stability of bleach-shade resin composites cured with 3 different light-curing units.

Materials and Methods

In this in vitro experimental study, 270 samples were fabricated of bleach and A2 shades of 3 commercial resin composites (Point 4, G-aenial Anterior, and Estelite Sigma Quick). Samples (n = 5 for each trial) were cured with Bluephase N, Woodpecker LED.D, and Optilux 501 units and underwent Vickers microhardness and flexural strength tests. The samples were tested after 24 hours of storage in distilled water. Color was assessed using a spectrophotometer immediately after preparation and 24 hours after curing. Data were analyzed using 3-way analysis of variance and the Tukey test (p ≤ 0.001).

Results

Samples cured with Optilux exhibited the highest and those cured with LED.D exhibited the lowest microhardness (p = 0.023). The bleach shade of Point 4 composite cured with Optilux displayed the highest flexural strength, while the same composite and shade cured with Sigma Quick exhibited the lowest (p ≤ 0.001). The color change after 24 hours was greatest for the bleach shade of G-aenial cured with Bluephase N and least for the A2 shade of Sigma Quick cured with Optilux (p ≤ 0.001).

Conclusions

Light curing with polywave light-emitting diode (LED) yielded results between or statistically similar to those of quartz-tungsten-halogen and monowave LED in the microhardness and flexural strength of both A2 and bleach shades of resin composites. However, the brands of light-curing devices showed significant differences in color stability.

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Mechanical Behaviour of Novel Nanohybrid Resin Composite Using Two Light Cure Systems
Ghada H. Naguib, Jumana Mazhar, Abeer Alnowaiser, Abdulghani Mira, Hisham Mously, Rabab Aljawi, Samar H. Abuzinadah, Mohamed T. Hamed
International Dental Journal.2025; 75(2): 1136. CrossRef
Evaluation of the Depth of Cure by Microhardness of Bulk-Fill Composites with Monowave and Polywave LED Light-Curing Units
Socratis Thomaidis, Dimitris Kampouropoulos, Maria Antoniadou, Afrodite Kakaboura
Applied Sciences.2024; 14(24): 11532. CrossRef
Effect of hard segment chemistry and structure on the self‐healing properties of UV‐curable coatings based on the urethane acrylates with built‐in Diels–Alder adduct
Paulina Bednarczyk, Karolina Mozelewska, Małgorzata Nowak, Joanna Klebeko, Joanna Rokicka, Paula Ossowicz‐Rupniewska
Journal of Applied Polymer Science.2023;[Epub] CrossRef
Effects of Dental Bleaching Agents on the Surface Roughness of Dental Restoration Materials
Alexandru Dan Popescu, Mihaela Jana Tuculina, Oana Andreea Diaconu, Lelia Mihaela Gheorghiță, Claudiu Nicolicescu, Cristian Niky Cumpătă, Cristiana Petcu, Jaqueline Abdul-Razzak, Ana Maria Rîcă, Ruxandra Voinea-Georgescu
Medicina.2023; 59(6): 1067. CrossRef
Effect of Polywave and Monowave Light Curing Units on Color Change of Composites Containing Trime-thylbenzoyl-Diphenyl-Phosphine Before and After Aging
Negar Madihi, Maryam Hoorizad ganjkar, Negin Nasoohi, Ali Kaboudanian Ardestani
Journal of Research in Dental and Maxillofacial Sciences.2023; 8(4): 249. CrossRef

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Physicochemical characterization of two bulk fill composites at different depths: Guillermo Grazioli, Carlos Enrique Cuevas-Suárez, Leina Nakanishi, Alejandro Francia, Rafael Ratto de Moraes; Restor Dent Endod 2021;46(3):e39. Published online July 5, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e39

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Objectives

This study analyzed the physical-chemical behavior of 2 bulk fill resin composites (BFCs; Filtek Bulk Fill [FBF], and Tetric-N-Ceram Bulk Fill [TBF]) used in 2- and 4-mm increments and compared them with a conventional resin composite (Filtek Z250).

Materials and Methods

Flexural strength and elastic modulus were evaluated by using a 3-point bending test. Knoop hardness was measured at depth areas 0–1, 1–2, 2–3, and 3–4 mm. The translucency parameter was measured using an optical spectrophotometer. Real-time polymerization kinetics was analyzed using Fourier transform infrared spectroscopy.

Results

Flexural strength was similar among the materials, while TBF showed lower elastic modulus (Z250: 6.6 ± 1.3, FBF: 6.4 ± 0.9, TBF: 4.3 ± 1.3). The hardness of Z250 was similar only between 0–1 mm and 1–2 mm. Both BFCs had similar hardness until 2–3 mm, and showed significant decreases at 3–4 mm (FBF: 33.45 ± 1.95 at 0–1 mm to 23.19 ± 4.32 at 3–4 mm, TBF: 23.17 ± 2.51 at 0–1 mm to 15.11 ± 1.94 at 3–4 mm). The BFCs showed higher translucency than Z250. The polymerization kinetics of all the materials were similar at 2-mm increments. At 4-mm, only TBF had a similar degree of conversion compared with 2 mm.

Conclusions

The BFCs tested had similar performance compared to the conventional composite when used in up to 2-mm increments. When the increment was thicker, the BFCs were properly polymerized only up to 3 mm.

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Translucency of bulk‐fill composite materials: A systematic review
Gaetano Paolone, Sofia Baldani, Niccolò De Masi, Mauro Mandurino, Giacomo Collivasone, Nicola Scotti, Enrico Gherlone, Giuseppe Cantatore
Journal of Esthetic and Restorative Dentistry.2024; 36(7): 995. CrossRef
Can composite packaging and selective enamel etching affect the clinical behavior of bulk-fill composite resin in posterior restorations? 24-month results of a randomized clinical trial
Marcos de Oliveira BARCELEIRO, Chane TARDEM, Elisa Gomes ALBUQUERQUE, Leticia de Souza LOPES, Stella Soares MARINS, Luiz Augusto POUBEL, Roberta BARCELOS, Romina ÑAUPARI-VILLASANTE, Alessandro Dourado LOGUERCIO, Fernanda Signorelli CALAZANS
Journal of Applied Oral Science.2023;[Epub] CrossRef
No-Cap Flowable Bulk-Fill Composite: Physico-Mechanical Assessment
Abdullah Alshehri, Feras Alhalabi, Ali Robaian, Mohammed A. S. Abuelqomsan, Abdulrahman Alshabib, Eman Ismail, Faisal Alzamil, Nawaf Alotaibi, Hamad Algamaiah
Polymers.2023; 15(8): 1847. CrossRef
The Microhardness and Surface Roughness Assessment of Bulk-Fill Resin Composites Treated with and without the Application of an Oxygen-Inhibited Layer and a Polishing System: An In Vitro Study
Ann Carrillo-Marcos, Giuliany Salazar-Correa, Leonor Castro-Ramirez, Marysela Ladera-Castañeda, Carlos López-Gurreonero, Hernán Cachay-Criado, Ana Aliaga-Mariñas, Alberto Cornejo-Pinto, Luis Cervantes-Ganoza, César Félix Cayo-Rojas
Polymers.2022; 14(15): 3053. CrossRef

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Retrospective study of fracture survival in endodontically treated molars: the effect of single-unit crowns versus direct-resin composite restorations: Kanet Chotvorrarak, Warattama Suksaphar, Danuchit Banomyong; Restor Dent Endod 2021;46(2):e29. Published online May 6, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e29

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Objectives

This study was conducted to compare the post-fracture survival rate of endodontically treated molar endodontically treated teeth (molar ETT) restored with resin composites or crowns and to identify potential risk factors, using a retrospective cohort design.

Materials and Methods

Dental records of molar ETT with crowns or composite restorations (recall period, 2015–2019) were collected based on inclusion and exclusion criteria. The incidence of unrestorable fractures was identified, and molar ETT were classified according to survival. Information on potential risk factors was collected. Survival rates and potential risk factors were analyzed using the Kaplan-Meier log-rank test and Cox regression model.

Results

The overall survival rate of molar ETT was 87% (mean recall period, 31.73 ± 17.56 months). The survival rates of molar ETT restored with composites and crowns were 81.6% and 92.7%, reflecting a significant difference (p < 0.05). However, ETT restored with composites showed a 100% survival rate if only 1 surface was lost, which was comparable to the survival rate of ETT with crowns. The survival rates of ETT with composites and crowns were significantly different (97.6% vs. 83.7%) in the short-term (12–24 months), but not in the long-term (> 24 months) (87.8% vs. 79.5%).

Conclusions

The survival rate from fracture was higher for molar ETT restored with crowns was higher than for ETT restored with composites, especially in the first 2 years after restoration. Molar ETT with limited tooth structure loss only on the occlusal surface could be successfully restored with composite restorations.

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Risk factors for the appearance of cracks and fractures of teeth according to a survey of dentists
Emilia A. Olesova, Alexander A. Ilyin, Sergey D. Arutyunov, Elena V. Glazkova, Arsen A. Popov, Svetlana P. Iarilkina
Russian Journal of Dentistry.2024; 28(6): 562. CrossRef
Performance of Bonded Lithium Disilicate Partial-coverage Crowns in the Restoration of Endodontically Treated Posterior Teeth: An Up to Seven-Year Retrospective Study
Q Jiang, Z Wang, S Zhang, X Liu, B Fu
Operative Dentistry.2024; 49(4): 365. CrossRef
In Vitro Bond Strength of Dentin Treated with Sodium Hypochlorite: Effects of Antioxidant Solutions
Guillermo Grazioli, Elisa de León Cáceres, Romina Tessore, Rafael Lund, Ana Monjarás-Ávila, Monika Lukomska-Szymanska, Louis Hardan, Rim Bourgi, Carlos Cuevas-Suárez
Antioxidants.2024; 13(9): 1116. CrossRef
Stress Analysis on Mesiolingual Cavity of Endodontically Treated Molar Restored Using Bidirectional Fiber-Reinforced Composite (Wallpapering Technique)
Harnia Neri, Dudi Aripin, Anna Muryani, Hendra Dharsono, Yolanda Yolanda, Andi Mahyuddin
Clinical, Cosmetic and Investigational Dentistry.2024; Volume 16: 75. CrossRef
Effect of Luting Cement Film Thickness on the Pull-Out Bond Strength of Endodontic Post Systems
Khalil Aleisa, Syed Rashid Habib, Abdul Sadekh Ansari, Ragad Altayyar, Shahad Alharbi, Sultan Ali S. Alanazi, Khalid Tawfik Alduaiji
Polymers.2021; 13(18): 3082. CrossRef

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Clinical performance of class I cavities restored with bulk fill composite at a 1-year follow-up using the FDI criteria: a randomized clinical trial: Chinni Suneelkumar, Puttaganti Harshala, Koppolu Madhusudhana, Anumula Lavanya, Anirudhan Subha, Sannapureddy Swapna; Restor Dent Endod 2021;46(2):e24. Published online April 16, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e24

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Objectives

The present study aimed to evaluate the survival rate and clinical performance of class 1 composite restorations restored with the Filtek Bulk Fill composite material using either the bulk fill technique or the incremental technique at baseline (1 week) and at 3, 6 and 12 months of follow-up.

Materials and Methods

Forty-two patients with at least 2 carious teeth were selected. Following randomization, one tooth was restored with the Filtek Bulk Fill composite using the incremental fill technique, and the other tooth was restored with the same material using the bulk fill technique. Patients were recalled for follow-up at baseline (1 week) and 3, 6, and 12 months and evaluated using the FDI criteria.

Results

The data were analyzed using the McNemar χ² test. No statistically significant differences were found between the scores of teeth restored with either technique. At baseline and at 3, 6, and 12 months of follow-up; there were no significant difference in the clinical status of both groups of restorations.

Conclusions

Within the limitations of this study, using the bulk fill technique for restorations with the Filtek Bulk Fill material seems to be equally efficient to using the incremental fill technique.

Trial Registration

Clinical Trials Registry-India Identifier: CTRI/2017/07/008961

Citations

Citations to this article as recorded by

Clinical Outcomes of Bulk‐Fill Resin Composite Restorations: A 10‐Year Mapping Review and Evidence Gap Map
Anna Júlia Oliveira de Menezes, Lucas do Nascimento Barbosa, Juan Vitor Costa Leite, Laryssa Mylenna Madruga Barbosa, Robinsom Viégas Montenegro, Raquel Venâncio Fernandes Dantas, Grace Mendonça de Souza, Ana Karina Maciel de Andrade, Renally Bezerra Wand
Journal of Esthetic and Restorative Dentistry.2025; 37(4): 920. CrossRef
Comparative evaluation of bioactive alkasite-based material in different application modes: a 1-year randomized controlled clinical trial
Nada A. El-Salamouny, Waleed A. Elmahy, Ahmed A. Holiel
Odontology.2025;[Epub] CrossRef
Two-Year Randomized Clinical Trial to Evaluate the Performance of Posterior Bulk-Fill Resin Composite with Ionic Releasing Restorative Material
AHMAD GAMAL MOHAMED RAGHIP, JOHN C. COMISI, HAMDI H. HAMAMA, SALAH HASAB MAHMOUD
Journal of Dentistry.2025; : 105912. CrossRef
Clinical, radiographic and biochemical assessment of proximal cavities restored with composite resin using incremental vs. bulk packing techniques: One-year randomized clinical trial
Monaliza Maher Abdelaziz, Shereen Fathy, Amany Ahmed Alaraby, Wessam Ibrahim Shehab, Marwa Mohamed Temirek
BMC Oral Health.2024;[Epub] CrossRef
The 24 months clinical evaluation of class II bulk fill composite restorations
Serdar Akarsu, Ebru Uslu Cender, Tuğçe Yılmaz, Dilara Yıldız, Sultan Aktuğ Karademir
Journal of Oral Health and Oral Epidemiology.2024; 13(2): 72. CrossRef
Patients´ satisfaction concerning direct anterior dental restoration
Bruna Neves de Freitas, Paulo Oliveira da Silva, Karen Pintado-Palomino, Cecília Vilela Vasconcelos Barros de Almeida, Aline Evangelista Souza-Gabriel, Silmara Aparecida Milori Corona, Saulo Geraldeli, Brigitte Grosgogeat, Jean-François Roulet, Camila Tir
Brazilian Dental Journal.2023; 34(3): 82. CrossRef
Randomized prospective clinical trial of class II restorations using flowable bulk-fill resin composites: 4-year follow-up
Isis Almela Endo Hoshino, André Luiz Fraga Briso, Lara Maria Bueno Esteves, Paulo Henrique dos Santos, Sandra Meira Borghi Frascino, Ticiane Cestari Fagundes
Clinical Oral Investigations.2022; 26(9): 5697. CrossRef
Evaluation Of The Clinical Performance Of Different Bulk-Fill Composites According To Clinical Evaluation Criteria
Özlem Akyüz Begeç, Emrullah Bahşi
Annals of Dental Specialty.2021; 9(1): 53. CrossRef
Analyzing the Clinical Effectiveness of Bulk-Fill Composites Using Standard Evaluation Criteria
Özlem Akyüz Begeç, Emrullah Bahşi
International Journal of Dental Research and Allied Sciences.2021; 1(2): 1. CrossRef

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Assessment of the radiant emittance of damaged/contaminated dental light-curing tips by spectrophotometric methods: Abdulrahman A. Balhaddad, Isadora Garcia, Fabrício Collares, Cristopher M. Felix, Nisha Ganesh, Qoot Alkabashi, Ward Massei, Howard Strassler, Mary Anne Melo; Restor Dent Endod 2020;45(4):e55. Published online November 3, 2020; DOI: https://doi.org/10.5395/rde.2020.45.e55

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Objectives

This study investigated the effects of physically damaged and resin-contaminated tips on radiant emittance, comparing them with new undamaged, non-contaminated tips using 3 pieces of spectrophotometric laboratory equipment.

Materials and Methods

Nine tips with damage and/or resin contaminants from actual clinical situations were compared with a new tip without damage or contamination (control group). The radiant emittance was recorded using 3 spectrophotometric methods: a laboratory-grade thermopile, a laboratory-grade integrating sphere, and a portable light collector (checkMARC).

Results

A significant difference between the laboratory-grade thermopile and the laboratory-grade integrating sphere was found when the radiant emittance values of the control or damaged/contaminated tips were investigated (p < 0.05), but both methods were comparable to checkMARC (p > 0.05). Regardless of the method used to quantify the light output, the mean radiant emittance values of the damaged/contaminated tips were significantly lower than those of the control (p < 0.05). The beam profile of the damaged/contaminated tips was less homogeneous than that of the control.

Conclusions

Damaged/contaminated tips can reduce the radiant emittance output and the homogeneity of the beam, which may affect the energy delivered to composite restorations. The checkMARC spectrophotometer device can be used in dental offices, as it provided values close to those produced by a laboratory-grade integrated sphere spectrophotometer. Dentists should assess the radiant emittance of their light-curing units to ensure optimal curing in photoactivated, resin-based materials.

Citations

Citations to this article as recorded by

Effect of damage or contamination to the tips of 200 light-curing units
Abdulrahman A. Balhaddad, Afnan O. Al-Zain, Hassan A. Alyami, Husain A. Almakrami, Osama A. Alsulaiman, Eman H. Ismail, Richard B. Price, Ahmed A. Alsulaiman
BMC Oral Health.2025;[Epub] CrossRef
Evaluation of Radiant Power of the Light Curing Units Used in Clinics at Governmental and Privates Dental Faculties
Sami Ali Hasan, Ibrahim Al-Shami, Mohsen Al-Hamzi, Ghadeer Alwadai, Nada Alamoudi, Saleh Alqahtani, Arwa Daghrery, Wafa Alaajam, Mansoor Shariff, Hussain Kinani, Mohammed Al Moaleem
Medical Devices: Evidence and Research.2024; Volume 17: 301. CrossRef
Evaluation of the information provided in the instruction manuals of dental light‐curing units
Afnan O. Al‐Zain, Eman H. Ismail, Abdulrahman A. Balhaddad, Osamah Toras, Yousif Alharthy, Rafa Alsultan, Abeer Alrossais, Richard B. Price
Journal of Esthetic and Restorative Dentistry.2024; 36(10): 1466. CrossRef
Utilizing Light Cure Units: A Concise Narrative Review
Fatin A. Hasanain, Hani M. Nassar
Polymers.2021; 13(10): 1596. CrossRef
Improper Light Curing of Bulkfill Composite Drives Surface Changes and Increases S. mutans Biofilm Growth as a Pathway for Higher Risk of Recurrent Caries around Restorations
Haifa Maktabi, Maria Salem Ibrahim, Abdulrahman A. Balhaddad, Qoot Alkhubaizi, Isadora Martini Garcia, Fabrício Mezzomo Collares, Howard Strassler, Ana Paula P. Fugolin, Carmem S. Pfeifer, Mary Anne S. Melo
Dentistry Journal.2021; 9(8): 83. CrossRef

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The effect of red and white wine on color changes of nanofilled and nanohybrid resin composites: Saijai Tanthanuch, Boonlert Kukiattrakoon, Thanwalee Peerasukprasert, Nilobon Chanmanee, Parnchanok Chaisomboonphun, Apisara Rodklai; Restor Dent Endod 2016;41(2):130-136. Published online May 3, 2016; DOI: https://doi.org/10.5395/rde.2016.41.2.130

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Objectives

This study investigated the effect of red and white wine on color changes of nanofilled and nanohybrid resin composite.

Materials and Methods

Sixty specimens of each resin composite were prepared. Baseline data color values were recorded using a spectrophotometer. Three groups of discs (n = 20) were then alternately immersed in red, white wine, and deionized water (as a control) for twenty five minutes and artificial saliva for five minutes for four cycles. Specimens were then stored in artificial saliva for twenty two hours. This process was repeated for five days following immersion in artificial saliva for two days. Subsequently, the process was repeated again. Data were analyzed by two-way repeated ANOVA, one-way ANOVA, and Tukey's HSD.

Results

Red wine caused significantly higher color change (ΔE^* > 3.3) than did white wine and deionized water (p < 0.05). Nanohybrid resin composites had significantly more color changes than nanofilled resin composite (p < 0.05).

Conclusions

The effect of red and white wine on the color changes of resin composite restorative materials depended upon the physical and chemical composition of the restorative materials and the types of wine.

Citations

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Assessing the Color Stability of Polymethyl Methacrylate (PMMA) Dental Restorations Polished With a Novel Polishing Agent Derived From Pulverized Old Alginate Impressions
Rahul Koppaka, Nabeel Ahmed, Urvi R Echhpal
Cureus.2024;[Epub] CrossRef
Effects of different beverages on the color stability and fluorescence of resin composites: in situ study
Lara Pepita de Souza Oliveira, Jardel dos Santos Silva, Luciana da Mata e Silva, Cristiane Maria Brasil Leal, Diego Ferreira Regalado, Carina Toda, Danielson Guedes Pontes
Clinical Oral Investigations.2024;[Epub] CrossRef
Colour stability comparison between ormocer nanohybrid composites and udma-based nanocomposites after immersion in coffee – Experimental study
Julia Elizabeth Guy, Tawfiq Hijazi Alsadi, Susana Muwaquet Rodriguez
The Saudi Dental Journal.2024; 36(12): 1627. CrossRef
Color Stability and Surface Roughness of Single-Shade Composite Resin after Finishing and Polishing
Hyewon Shin, Haeni Kim, Minho Hong, Juhyun Lee
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY.2024; 51(3): 197. CrossRef
The Effect of Whitening and Daily Dentifrices on Red Wine Staining in Different Types of Composite Resins
Nantawan Krajangta, Chayanit Angkananuwat, Seelassaya Leelaponglit, Panyapat Saelor, Natthasit Ngamjarrussriwichai, Awiruth Klaisiri
Applied Sciences.2024; 14(24): 12030. CrossRef
Effect of immersion and thermocycling in different beverages on the surface roughness of single- and multi-shade resin composites
Aiah A. El-Rashidy, Omar Shaalan, Rasha M. Abdelraouf, Nour A. Habib
BMC Oral Health.2023;[Epub] CrossRef
Effect of two artificial aging protocols on color and gloss of single-shade versus multi-shade resin composites
Aiah A. El-Rashidy, Rasha M. Abdelraouf, Nour A. Habib
BMC Oral Health.2022;[Epub] CrossRef
Colour Stability of 3D-Printed and Prefabricated Denture Teeth after Immersion in Different Colouring Agents—An In Vitro Study
Mariya Dimitrova, Bozhana Chuchulska, Stefan Zlatev, Rada Kazakova
Polymers.2022; 14(15): 3125. CrossRef
The Impact on Dental Staining Caused by Beverages in Combination with Chlorhexidine Digluconate
Sandra Sarembe, Andreas Kiesow, Jonathan Pratten, Corinne Webster
European Journal of Dentistry.2022; 16(04): 911. CrossRef
Spectrophotometric Analysis of 3D Printed and Conventional Denture Base Resin after Immersion in Different Colouring Agents—An In Vitro Study
Mariya Dimitrova, Saverio Capodiferro, Angelina Vlahova, Rada Kazakova, Stoyan Kazakov, Giuseppe Barile, Massimo Corsalini
Applied Sciences.2022; 12(24): 12560. CrossRef
Photoinactivation of Staphylococci with 405 nm Light in a Trachea Model with Saliva Substitute at 37 °C
Tobias Meurle, Johannes Knaus, Agustin Barbano, Katharina Hoenes, Barbara Spellerberg, Martin Hessling
Healthcare.2021; 9(3): 310. CrossRef
DISCOLORATION OF NANOHYBRID AND NANOFILLER RESIN COMPOSITES AFTER EXPOSURE TO TURMERIC
Yasmin Safira Virgiani, Adioro Soetojo, Nanik Zubaidah
Conservative Dentistry Journal.2021; 11(1): 46. CrossRef
Influence of wine tasting on the color of teeth amongst professional wine tasters of gironde, France: a pilot study
François Deleplanque, Noella Rajonson, Elise Cazaubon, Sébastien Marque, Johan Samot
Journal of Wine Research.2021; 32(2): 67. CrossRef
Effects of Artificial Staining and Bleaching Protocols on the Surface Roughness, Color, and Whiteness Changes of an Aged Nanofilled Composite
Geyse Maria dos Santos Muniz Mota, Matheus Kury, Cecília Pereira da Silva Braga Tenório, Flávia Lucisano Botelho do Amaral, Cecília Pedroso Turssi, Vanessa Cavalli
Frontiers in Dental Medicine.2020;[Epub] CrossRef
A New pH-Dependent Macrocyclic Rhodamine B-Based Fluorescent Probe for Copper Detection in White Wine
Nour Doumani, Elias Bou-Maroun, Jacqueline Maalouly, Maya Tueni, Adrien Dubois, Claire Bernhard, Franck Denat, Philippe Cayot, Nicolas Sok
Sensors.2019; 19(20): 4514. CrossRef
Physico-mechanical characterization and fracture reliability of dental resin composites for enamel restoration
Carianne Mendes de Almeida, Evandro Piva, Camila Gonçalves Duarte, Henrique Timm Vieira, Cristina Pereira Isolan, Lisia Lorea Valente, Eliseu Aldrighi Münchow
Journal of the Brazilian Society of Mechanical Sciences and Engineering.2019;[Epub] CrossRef
Effect of powder-liquid ratios and powder colors on color stability of 4-META / MMA-TBB resin after immersion in coffee.
Yoorina Choi, Seo-Jin Jang, Su-Jung Park
Korean Journal of Dental Materials.2018; 45(3): 187. CrossRef
Color stability of bulk‐fill composites immersed in different drinks
Ugur Erdemir, Alev Ozsoy Kaner, Meltem Mert Eren, Gunce Ozan, Esra Yıldız
Color Research & Application.2018; 43(5): 785. CrossRef
Effect of vulcanization temperature and dental stone colour on colour degradation of maxillofacial silicone elastomers
Ebru Demet Cifter, Meltem Ozdemir – Karatas, Emrah Baca, Adem Cinarli, Ali Balik, Erkan Sancakli, Bilge Gokcen-Rohlig
BMC Oral Health.2017;[Epub] CrossRef

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Effect of resin thickness on the microhardness and optical properties of bulk-fill resin composites: Eun-Ha Kim, Kyoung-Hwa Jung, Sung-Ae Son, Bock Hur, Yong-Hoon Kwon, Jeong-Kil Park; Restor Dent Endod 2015;40(2):128-135. Published online January 13, 2015; DOI: https://doi.org/10.5395/rde.2015.40.2.128

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Objectives

This study evaluated the effects of the resin thickness on the microhardness and optical properties of bulk-fill resin composites.

Methods

Four bulk-fill (Venus Bulk Fill, Heraeus Kulzer; SDR, Dentsply Caulk; Tetric N-Ceram Bulk Fill, Ivoclar vivadent; SonicFill, Kerr) and two regular resin composites (Charisma flow, Heraeus Kulzer; Tetric N-Ceram, Ivoclar vivadent) were used. Sixty acrylic cylindrical molds were prepared for each thickness (2, 3 and 4 mm). The molds were divided into six groups for resin composites. The microhardness was measured on the top and bottom surfaces, and the colors were measured using Commission Internationale d'Eclairage (CIE) L^*a^*b^* system. Color differences according to the thickness and translucency parameters and the correlations between the microhardness and translucency parameter were analyzed. The microhardness and color differences were analyzed by ANOVA and Scheffe's post hoc test, and a student t-test, respectively. The level of significance was set to α = 0.05.

Results

The microhardness decreased with increasing resin thickness. The bulk-fill resin composites showed a bottom/top hardness ratio of almost 80% or more in 4 mm thick specimens. The highest translucency parameter was observed in Venus Bulk Fill. All resin composites used in this study except for Venus Bulk Fill showed linear correlations between the microhardness and translucency parameter according to the thickness.

Conclusions

Within the limitations of this study, the bulk-fill resin composites used in this study can be placed and cured properly in the 4 mm bulk.

Citations

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Experimental study of polishing systems on surface roughness and color stability of novel bulk-fill composite resins
Seda Nur Karakaş, Sevde Gül Batmaz, Volkan Çiftçi, Cihan Küden
BMC Oral Health.2025;[Epub] CrossRef
Predictors of procedural errors in class II resin composite restorations using bitewing radiographs
Abdulrahman A. Balhaddad, Nawaf AlGhamdi, Mohammed Alqahtani, Osama A. Alsulaiman, Ali Alshammari, Malik J. Farraj, Ahmed A. Alsulaiman
The Saudi Dental Journal.2024; 36(4): 638. CrossRef
Evaluation of Surface Roughness and Microhardness of Bulk-fill and Nanohybrid Composite after Exposure to Different Beverages at Various Time Intervals – An In vitro Study
Sachin Bengal, Gautam P. Badole, Pratima R. Shenoi, Rajesh Kubde, Shriya Shahu
Annals of African Medicine.2024; 23(3): 466. CrossRef
Influence of Light‐Curing Time and Increment Thickness on the Properties of Bulk Fill Composite Resins With Distinct Application Systems
Carlos Rocha Gomes Torres, Taiana Paola Prado, Daniele Mara da Silva Ávila, Cesar Rogério Pucci, Alessandra Bühler Borges, Heng Bo Jiang
International Journal of Dentistry.2024;[Epub] CrossRef
Preheating effect on microhardness and depth of cure of three bulk-fill composite resins: An in vitro study
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A study on the compatibility between one-bottle dentin adhesives and composite resins using micro-shear bond strength: Minju Song, Yooseok Shin, Jeong-Won Park, Byoung-Duck Roh; Restor Dent Endod 2015;40(1):30-36. Published online September 26, 2014; DOI: https://doi.org/10.5395/rde.2015.40.1.30

Abstract PDF PubReader ePub

Objectives

This study was performed to determine whether the combined use of one-bottle self-etch adhesives and composite resins from same manufacturers have better bond strengths than combinations of adhesive and resins from different manufacturers.

Materials and Methods

25 experimental micro-shear bond test groups were made from combinations of five dentin adhesives and five composite resins with extracted human molars stored in saline for 24 hr. Testing was performed using the wire-loop method and a universal testing machine. Bond strength data was statistically analyzed using two way analysis of variance (ANOVA) and Tukey's post hoc test.

Results

Two way ANOVA revealed significant differences for the factors of dentin adhesives and composite resins, and significant interaction effect (p < 0.001). All combinations with Xeno V (Dentsply De Trey) and Clearfil S³ Bond (Kuraray Dental) adhesives showed no significant differences in micro-shear bond strength, but other adhesives showed significant differences depending on the composite resin (p < 0.05). Contrary to the other adhesives, Xeno V and BondForce (Tokuyama Dental) had higher bond strengths with the same manufacturer's composite resin than other manufacturer's composite resin.

Conclusions

Not all combinations of adhesive and composite resin by same manufacturers failed to show significantly higher bond strengths than mixed manufacturer combinations.

Citations

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Influence of etching mode and composite resin type on bond strength to dentin using universal adhesive system
Stefan Dačić, Milan Miljković, Aleksandar Mitić, Goran Radenković, Marija Anđelković‐Apostolović, Milica Jovanović
Microscopy Research and Technique.2021; 84(6): 1212. CrossRef
Is the presence of 10-MDP associated to higher bonding performance for self-etching adhesive systems? A meta-analysis of in vitro studies
Julia Fehrenbach, Cristina Pereira Isolan, Eliseu Aldrighi Münchow
Dental Materials.2021; 37(10): 1463. CrossRef
Dentin bond strengths of all-in-one adhesives combined with different manufacturers’ flowable resin composites
Koichi SHINKAI, Daiki YOSHII, Akira KOIDE, Masaya SUZUKI, Shiro SUZUKI
Dental Materials Journal.2021; 40(5): 1094. CrossRef
DİŞ HEKİMLİĞİNDE ADEZİV SİSTEMLER
Elmas TÜRKER, Buket AYNA
Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi.2018;[Epub] CrossRef
Influence of EDC on Dentin-Resin Shear Bond Strength and Demineralized Dentin Thermal Properties
Lin Tang, Yi Zhang, Yuhua Liu, Yongsheng Zhou
Materials.2016; 9(11): 920. CrossRef

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Basic Research

Optical characteristics of resin composite before and after polymerization: Ah-Hyang Eom, Duck-Su Kim, Soo-Hee Lee, Chang-Won Byun, Noh-Hoon Park, Kyoung-Kyu Choi; J Korean Acad Conserv Dent 2011;36(3):219-230. Published online May 31, 2011; DOI: https://doi.org/10.5395/JKACD.2011.36.3.219

Abstract PDF PubReader ePub

Objectives

The aim of this study was to evaluate the optical characteristics such as color and translucency changes before and after light curing, to quantify the CQ and to measure refractive indices of body and opaque shade of resin composites materials.

Materials and Methods

Resin composites used in this study were A2 body and A2 opaque shade of Esthet-X, Filtek supreme, Gradia Direct, Clearfil Majesty and Beautifil II Color and translucency changes before and after light curing were evaluated by colorimeter, the CQ was quantified by GC-MS and refractive index changes were measured by spectroscopic ellipsometer.

Results

Translucency parameter (TP) was significantly increased after curing. The CQ content of body shades are higher than that of opaque shades in all resin composites. Refractive index increased after polymerization in all materials and significant difference in Δrefractive index was found between body and opaque shade (significance level 0.05).

Conclusions

For an accurate shade match, direct shade matching of resin composite should be performed by using the cured material.

Citations

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İçeceklerin Tek Renkli Kompozit Rezinlerin Renk Stabilitesine ve Yüzey Pürüzlülüğüne Olan Etkisi
Özlem ERÇİN, Dilan KOPUZ
ADO Klinik Bilimler Dergisi.2024; 13(1): 68. CrossRef
Color Change in Tooth Induced by Various Calcium Silicate-Based Pulp-Capping Materials
Jiyoon Jeon, Namki Choi, Seonmi Kim
THE JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY.2021; 48(3): 280. CrossRef

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Original Articles

The effect of various bonding systems on the microtensile bond strength of immediate and delayed dentin sealing: Jin-hee Ha, Hyeon-Cheol Kim, Bock Hur, Jeong-Kil Park; J Korean Acad Conserv Dent 2008;33(6):526-536. Published online November 30, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.6.526

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The purpose of this study was to compare the effect of various dentin bonding systems on microtensile bond strength of immediate dentin sealing (IDS) and delayed dentin sealing (DDS). Eighteen extracted permanent molars were used in this study. The teeth for DDS group were restored with a provisional restorations, and immersed in saline solution for 1 week, and divided into 3 subgroups according to various dentin bonding adhesives; SB subgroup (3 step total-etch adhesive), SE subgroup (2 step self-etch adhesive), XE subgroup (1 step self-etch adhesive). In IDS group, the teeth were divided into 3 subgroups, and applied with bonding adhesives as in DDS group. The teeth were restored with provisional restorations, and immersed in saline solution for 1 week. Indirect composite disc was cemented with resin cement, and all specimens were subjected to microtensile bond strength. The data were statistically analyzed with one-way ANOVA and Student t-test.

The results were as follows:

The IDS group showed significantly higher µTBS than DDS group in 3 step total-etch and 2 step self-etch adhesive (p < 0.05).

In IDS and DDS group, 3 step total-etch adhesive showed the highest µTBS value, followed by 2 step self-etch, and 1 step self-etch adhesive. In IDS group, the µTBS value for 1 step self-etch adhesive was significantly different from those of the other subgroups (p < 0.05), and in DDS group, there were statistical differences in all subgroup (p < 0.05).

Failure modes of tested dentin bonding adhesives were mostly mixed failure and only 1 step self-etch adhesive showed adhesive failure.

Citations

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The effect of Er,Cr:YSGG irradiation on microtensile bond strength of composite resin restoration
Jeong-Hye Son, Hyeon-Cheol Kim, Bock Hur, Jeong-Kil Park
Journal of Korean Academy of Conservative Dentistry.2010; 35(2): 134. CrossRef

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Is an oxygen inhibition layer essential for the interfacial bonding between resin composite layers?: Sun-Young Kim, Byeong-Hoon Cho, Seung-Ho Baek, In-Bog Lee; J Korean Acad Conserv Dent 2008;33(4):405-412. Published online July 31, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.4.405

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This study was aimed to investigate whether an oxygen inhibition layer (OIL) is essential for the interfacial bonding between resin composite layers or not.

A composite (Z-250, 3M ESPE) was filled in two layers using two aluminum plate molds with a hole of 3.7 mm diameter. The surface of first layer of cured composite was prepared by one of five methods as followings, thereafter second layer of composite was filled and cured: Group 1 - OIL is allowed to remain on the surface of cured composite; Group 2 - OIL was removed by rubbing with acetone-soaked cotton; Group 3 - formation of the OIL was inhibited using a Mylar strip; Group 4 - OIL was covered with glycerin and light-cured; Group 5 (control) - composite was bulk-filled in a layer. The interfacial shear bond strength between two layers was tested and the fracture modes were observed. To investigate the propagation of polymerization reaction from active area having a photo-initiator to inactive area without the initiator, a flowable composite (Aelite Flow) or an adhesive resin (Adhesive of ScotchBond Multipurpose) was placed over an experimental composite (Exp_Com) which does not include a photoinitiator and light-cured. After sectioning the specimen, the cured thickness of the Exp_Com was measured.

The bond strength of group 2, 3 and 4 did not show statistically significant difference with group 1. Groups 3 and 4 were not statistically significant different with control group 5. The cured thicknesses of Exp_Com under the flowable resin and adhesive resin were 20.95 (0.90) um and 42.13 (2.09), respectively.

Citations

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Finishing and Polishing of Composite Restoration: Assessment of Knowledge, Attitude and Practice Among Various Dental Professionals in India
Sankar Vishwanath, Sadasiva Kadandale, Senthil kumar Kumarappan, Anupama Ramachandran, Manu Unnikrishnan, Honap manjiri Nagesh
Cureus.2022;[Epub] CrossRef
Evaluation of Surface Roughness of Composite, Compomer and Carbomer After Curing Through Mylar Strip and Glycerin: A Comparative Study
Asli Topaloglu-Ak, Dilara Çayırgan, Melisa Uslu
Journal of Advanced Oral Research.2020; 11(1): 12. CrossRef
Effect of glycerin on the surface hardness of composites after curing
Hyun-Hee Park, In-Bog Lee
Journal of Korean Academy of Conservative Dentistry.2011; 36(6): 483. CrossRef

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Slumping resistance and viscoelasticity of resin composite pastes: Hee Yeon Suh, In Bog Lee; J Korean Acad Conserv Dent 2008;33(3):235-245. Published online May 31, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.3.235

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The aim of this study was to develop a method for measuring the slumping resistance of resin composites and to relate it to the rheological characteristics.

Five commercial hybrid composites (Z100, Z250, DenFil, Tetric Ceram, ClearFil) and a nanofill composite (Z350) were used to make disc-shaped specimens of 2 mm thickness. An aluminum mold with square shaped cutting surface was pressed onto the composite discs to make standardized imprints. The imprints were light-cured either immediately (non-slumped) or after waiting for 3 minutes at 25℃ (slumped). White stone replicas were made and then scanned for topography using a laser 3-D profilometer. Slumping resistance index (SRI) was defined as the ratio of the groove depth of the slumped specimen to that of the non-slumped specimen. The pre-cure viscoelasticity of each composite was evaluated by an oscillatory shear test and normal stress was measured by a squeeze test using a rheometer. Flow test was also performed using a flow tester. Correlation analysis was performed to investigate the relationship between the viscoelastic properties and the SRI.

SRI varied between the six materials (Z100 < DenFil < Z250 < ClearFil < Tetric Ceram < Z350). The SRI was strongly correlated with the viscous (loss) shear modulus G' but not with the loss tangent. Also, slumping resistance was more closely related to the resistance to shear flow than to the normal stress.

Slumping tendency could be quantified using the imprint method and SRI. The index may be applicable to evaluate the clinical handling characteristics of composites.

Citations

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The change of the initial dynamic visco-elastic modulus of composite resins during light polymerization
Min-Ho Kim, In-Bog Lee
Journal of Korean Academy of Conservative Dentistry.2009; 34(5): 450. CrossRef

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A study on fractural behavior of dentin-resin interface: Gil-Joo Ryu, Gi-Woon Choi, Sang-Jin Park, Kyung-Kyu Choi; J Korean Acad Conserv Dent 2007;32(3):208-221. Published online May 31, 2007; DOI: https://doi.org/10.5395/JKACD.2007.32.3.208

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The fracture toughness test is believed as a clinically relevant method for assessing the fracture resistance of the dentinal restoratives. The objectives of this study were to measure the fracture toughness (K_1C) and microtensile bond strength of dentin-resin composite interface and compare their relationship for their use in evaluation of the integrity of the dentin-resin bond.

A minimum of six short-rod specimens for fracture toughness test and fifteen specimens for microtensile bond strength test was fabricated for each group of materials used. After all specimens storing for 24 hours in distilled water at 37℃, they were tensile-loaded with an EZ tester universal testing machin. Statistical analysis was performed using ANOVA and Tukey's test at the 95% confidence level, Pearson's coefficient was used to verify the correlation between the mean of fracture toughness and microtensile bond strength. FE-SEM was employed on fractured surface to describe the crack propagation.

Fracture toughness value of Clearfil SE Bond (SE) was the highest, followed by Adper Single Bond 2 (SB), OptiBond Solo (OB), ONE-STEP PLUS (OS), ScotchBond Multi-purpose (SM) and there was significant difference between SE and other 4 groups (p < 0.05). There were, however, no significant difference among SB, OB, OS, SM (p > 0.05). Microtensile bond strength of SE was the highest, followed by SB, OB, SM, OS and OS only showed significant lower value (p < 0.05). There was no correlation between fracture toughness and microtensile bond strength values. FE-SEM examination revealed that dentin bonding agent showed different film thickness and different failure pattern according to the film thickness.

From the limited results of this study, it was noted that there was statistically no correlation between K1C and µTBS. We can conclude that for obtaining the reliability of bond strength test of dentin bonding agent, we must pay more attention to the test procedure and its profound scrutiny.

Citations

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The study of fractural behavior of repaired composite
Sang-Soon Park, Wook Nam, Ah-Hyang Eom, Duck-Su Kim, Gi-Woon Choi, Kyoung-Kyu Choi
Journal of Korean Academy of Conservative Dentistry.2010; 35(6): 461. CrossRef

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Compatibility of self-etching dentin adhesives with resin luting cements: Do-Wan Kim, Sang-Jin Park, Kyoung-Kyu Choi; J Korean Acad Conserv Dent 2005;30(6):493-504. Published online November 30, 2005; DOI: https://doi.org/10.5395/JKACD.2005.30.6.493

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This study was performed to investigate the compatibility between 4 dentin adhesives and 4 resin luting cements.

Dentin adhesives used in this study were All-Bond 2 (Bisco Inc., Schaumbrug, IL, USA), Clearfil SE-Bond (Kuraray Medical Inc, Osaka, Japan), Prompt L-Pop (3M Dental Products, St. Paul, MN, USA), One-Up Bond F (Tokuyama corp., Tokyo, Japan). Resin luting cements used in this study were Choice (Bisco Inc., Schaumbrug, IL, USA), Panavia F (Kuraray Medical Inc, Osaka, Japan), RelyX ARC (3M Dental Products, St. Paul, MN, USA), Bistite II DC (Tokuyama corp., Tokyo, Japan). Combination of each dentin adhesive and corresponding resin cement was made to 16 experimental groups.

Flat dentin surfaces was created on mid-coronal dentin of extracted mandibular third molars, then dentin surface was polished with 320-grit silicon carbide abrasive papers.

Indirect resin composite block (Tescera, Bisco) was fabricated. Its surface for bonding to tooth was polished with silicon carbide abrasive papers. Each dentin adhesive was treated on tooth surface and resin composite overlay were luted with each resin cement. Each bonded specimen was poured in epoxy resin and sectioned occluso-gingivally into 1.0 mm thick slab, then further sectioned into 1.0 × 1.0 mm² composite-dentin beams. Microtensile bond strength was tested at a crosshead speed of 1.0 mm/min. The data were analysed by one-way ANOVA and Duncan's multiple comparison tests.

The results of this study were as follows;

2-step self-etching dentin adhesive which has additional bonding resin is more compatible than 1-step self-etching dentin adhesive.

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RHEOLOGICAL PROPERTIES OF RESIN COMPOSITES ACCORDING TO THE CHANGE OF MONOMER AND FILLER COMPOSITIONS: In-Bog Lee, Jong-Hyuck Lee, Byung-Hoon Cho, Sang-Tag Lee, Chung-Moon Um; J Korean Acad Conserv Dent 2004;29(6):520-531. Published online January 14, 2004; DOI: https://doi.org/10.5395/JKACD.2004.29.6.520

Abstract PDF PubReader ePub

ABSTRACT Objectives.

The aim of this study was to investigate the effect of monomer and filler compositions on the rheological properties related to the handling characteristics of resin composites.

Methods.

Resin matrices that Bis-GMA as base monomer was blended with TEGDMA as diluent at various ratio were mixed with the Barium glass (0.7 um and 1.0 um), 0.04 um fumed silica and 0.5 um round silica. All used fillers were silane treated. In order to vary the viscosity of experimental composites, the type and content of incorporated fillers were changed.

Using a rheometer, a steady shear test and a dynamic oscillatory shear test were used to evaluate the viscosity (η) of resin matrix, and the storage shear modulus (G′), the loss shear modulus (G″), the loss tangent (tanδ) and the complex viscosity (η *) of the composites as a function of frequency ω = 0.1-100 rad/s. To investigate the effect of temperature on the viscosity of composites, a temperature sweep test was also undertaken.

Results.

Resin matrices were Newtonian fluid regardless of diluent concentration and all experimental composites exhibited pseudoplastic behavior with increasing shear rate. The viscosity of composites was exponentially increased with increasing filler volume%. In the same filler volume, the smaller the fillers were used, the higher the viscosities were. The effect of filler size on the viscosity was increased with increasing filler content. Increasing filler content reduced tanδby increasing the G′further than the G″ . The viscosity of composites was decreased exponentially with increasing temperature.

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JH Bae, YK Kim, PY Yoon, MA Lee, BH Cho
Journal of Korean Academy of Conservative Dentistry.2007; 32(5): 469. CrossRef

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