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2 "Atomic force microscopy"
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Research Article
The effect of root canal preparation on the surface roughness of WaveOne and WaveOne Gold files: atomic force microscopy study
Taha Özyürek, Koray Yılmaz, Gülşah Uslu, Gianluca Plotino
Restor Dent Endod 2018;43(1):e10.   Published online February 2, 2018
DOI: https://doi.org/10.5395/rde.2018.43.e10
AbstractAbstract PDFPubReaderePub
Objectives

To examine the surface topography of intact WaveOne (WO; Dentsply Sirona Endodontics) and WaveOne Gold (WOG; Dentsply Sirona Endodontics) nickel-titanium rotary files and to evaluate the presence of alterations to the surface topography after root canal preparations of severely curved root canals in molar teeth.

Materials and Methods

Forty-eight severely curved canals of extracted molar teeth were divided into 2 groups (n = 24/each group). In group 1, the canals were prepared using WO and in group 2, the canals were prepared using WOG files. After the preparation of 3 root canals, instruments were subjected to atomic force microscopy analysis. Average roughness and root mean square values were chosen to investigate the surface features of endodontic files. The data was analyzed using one-way analysis of variance and post hoc Tamhane's tests at 5% significant level.

Results

The surface roughness values of WO and WOG files significantly changed after use in root canals (p < 0.05). The used WOG files exhibited higher surface roughness change when compared with the used WO files (p < 0.05).

Conclusions

Using WO and WOG Primary files in 3 root canals affected the surface topography of the files. After being used in root canals, the WOG files showed a higher level of surface porosity value than the WO files.

Citations

Citations to this article as recorded by  
  • Comparative Analysis of Surface Roughness and Plastic Deformation of Reciprocating Instruments after Clinical Use
    Ángel Herrera, Magdalena Azabal, Jesús R. Jimenez-Octavio, Juan C. del Real-Romero, Sara López de Armentia, Juan M. Asensio-Gil, Ana Arias
    Materials.2024; 17(16): 3978.     CrossRef
  • Comparative Evaluation of Surface Roughness of Different Rotary Nickel-Titanium (NiTi) Files After Autoclaving: An Atomic Force Microscopic Study
    Angela Alex, Ranjith Kumar Sivarajan, Vijay Venkatesh
    Cureus.2024;[Epub]     CrossRef
  • Impact of endodontic irrigants on surface roughness of various nickel-titanium rotary endodontic instruments
    Tamer M. Hamdy, Yasmine Mohsen Alkabani, Amira Galal Ismail, Manar M. Galal
    BMC Oral Health.2023;[Epub]     CrossRef
  • Metallurgical Tests in Endodontics: A Narrative Review
    Alessio Zanza, Marco Seracchiani, Rodolfo Reda, Gabriele Miccoli, Luca Testarelli, Dario Di Nardo
    Bioengineering.2022; 9(1): 30.     CrossRef
  • Cyclic Fatigue Resistance and Surface Roughness of Rotary NiTi Instruments after Simulated Clinical Use in Curved Root Canals – An Atomic Force Microscopy Study
    Raksha Bhat, Arjun Kini, Preethesh Shetty, Payalben Kansara, Bapanaiah Penugonda
    Pesquisa Brasileira em Odontopediatria e Clínica Integrada.2022;[Epub]     CrossRef
  • In Vitro Study of Irrigation solution of Chitosan Nanoparticles to Inhibit the Adhesion and Biofilm Formation of Enterococcus faecalis in the Root Canal
    Imelda Darmawi, Trimurni Abidin, Harry Agusnar, Basri A. Gani
    Research Journal of Pharmacy and Technology.2022; : 2691.     CrossRef
  • Alteration in surface roughness of reciprocating endodontic instruments
    Khoa Van Pham
    F1000Research.2021; 10: 875.     CrossRef
  • Surface profile of different heat-treated nickel-titanium files before and after root canal preparation
    Iandara de Lima Scardini, Denise Maria Zezell, Juliana Lisboa Couto Marques, Laila Gonzales Freire, Marcelo dos Santos
    Brazilian Dental Journal.2021; 32(6): 8.     CrossRef
  • Impact of Endodontic Instrumentation on Surface Roughness of Various Nickel-Titanium Rotary Files
    Muhammad Sohail Zafar
    European Journal of Dentistry.2021; 15(02): 273.     CrossRef
  • A new method for assessment of nickel-titanium endodontic instrument surface roughness using field emission scanning electronic microscope
    Khoa Van Pham, Canh Quang Vo
    BMC Oral Health.2020;[Epub]     CrossRef
  • Surface Alterations Induced on Endodontic Instruments by Sterilization Processes, Analyzed with Atomic Force Microscopy: A Systematic Review
    Mario Dioguardi, Vito Crincoli, Luigi Laino, Mario Alovisi, Enrica Laneve, Diego Sovereto, Bruna Raddato, Khrystyna Zhurakivska, Filiberto Mastrangelo, Domenico Ciavarella, Lucio Lo Russo, Lorenzo Lo Muzio
    Applied Sciences.2019; 9(22): 4948.     CrossRef
  • Atomic force microscopy and energy dispersive X‐ray spectrophotometry analysis of reciprocating and continuous rotary nickel‐titanium instruments following root canal retreatment
    Bulem Üreyen Kaya, Cevat Emre Erik, Gülsen Kiraz
    Microscopy Research and Technique.2019; 82(7): 1157.     CrossRef
  • Influence of heat treatment on torsional resistance and surface roughness of nickel‐titanium instruments
    E. J. N. L. Silva, J. F. N. Giraldes, C. O. de Lima, V. T. L. Vieira, C. N. Elias, H. S. Antunes
    International Endodontic Journal.2019; 52(11): 1645.     CrossRef
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  • 13 Crossref
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Original Article
The change of the configuration of hydroxyapatite crystals in enamel by changes of pH and degree of saturation of lactic acid buffer solution
Young-Eui Chon, Il-Young Jung, Bung-Duk Roh, Chan-Young Lee
J Korean Acad Conserv Dent 2007;32(6):498-513.   Published online November 30, 2007
DOI: https://doi.org/10.5395/JKACD.2007.32.6.498
AbstractAbstract PDFPubReaderePub

Since it was reported that incipient enamel caries can be recovered, previous studies have quantitatively evaluated that enamel artificial caries have been remineralized with fluoride, showing simultaneously the increase of width of surface layer and the decrease of width of the body of legion. There is, however, little report which showed that remineralization could occur without fluoride. In addition, the observations on the change of hydroxyapatite crystals also have been scarcely seen.

In this study, enamel caries in intact premolars or molars was induced by using lactic acidulated buffering solutions over 2 days. Then decalcified specimens were remineralized by seven groups of solutions using different degree of saturation (0.212, 0.239, 0.301, 0.355) and different pH (5.0, 5.5, 6.0) over 10 days. A qualitative comparison to changes of hydroxyapatite crystals after fracturing teeth was made under SEM (scanning electron microscopy) and AFM (atomic force microscopy).

The results were as follows:

1. The size of hydroxyapatite crystals in demineralized area was smaller than the normal ones. While the space among crystals was expanded, it was observed that crystals are arranged irregularly.

2. In remineralized enamel area, the enlarged crystals with various shape were observed when the crystals were fused and new small crystals in intercrystalline spaces were deposited.

3. Group 3 and 4 with higher degree of saturation at same pH showed the formation of large clusters by aggregation of small crystals from the surface layer to the lesion body than group 1 and 2 with relatively low degree of saturation at same pH did. Especially group 4 showed complete remineralization to the body of lesions. Group 5 and 6 with lower pH at similar degree of saturation showed remineralization to the body of lesions while group 7 didn't show it. Unlike in Group 3 and 4, Group 5 and 6 showed that each particle was densely distributed with clear appearance rather than crystals form clusters together.

Citations

Citations to this article as recorded by  
  • Anticariogenic Sanative Effect of Aluminum Gallium Arsenide Crystals on Hydroxyapatite Crystals
    Sonali Sharma, Mithra N. Hegde, Sindhu Ramesh
    Crystals.2022; 12(12): 1841.     CrossRef
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  • 2 Download
  • 1 Crossref
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