Restorative Dentistry & Endodontics

Research Articles

Effect of ultrasonic tip designs on intraradicular post removal: Anny Carine Barros Aguiar, Daniely Amorim de Meireles, André Augusto Franco Marques, Emílio Carlos Sponchiado Júnior, Angela Delfina Bitencourt Garrido, Lucas da Fonseca Roberti Garcia; Restor Dent Endod 2014;39(4):265-269. Published online July 17, 2014; DOI: https://doi.org/10.5395/rde.2014.39.4.265

Objectives

To evaluate the effect of different ultrasonic tip designs on intraradicular post removal.

Materials and Methods

The crowns of forty human canine teeth were removed, and after biomechanical preparation and filling, the roots were embedded in acrylic resin blocks. The post spaces were made, and root canal molding was performed with self-cured acrylic resin. After casting (Cu-Al), the posts were cemented with zinc phosphate cement. The specimens were randomly separated into 4 groups (n = 10), as follows: G1 - no ultrasonic vibration (control); G2 - ultrasonic vibration using an elongated cylindrical-shaped and active rounded tip; G3 - ultrasonic vibration with a flattened convex and linear active tip; G4 - ultrasonic vibration with active semicircular tapered tip. Ultrasonic vibration was applied for 15 seconds on each post surface and tensile test was performed in a Universal Testing Machine (Instron 4444 - 1 mm/min).

Results

G4 presented the highest mean values, however, with no statistically significant difference in comparison to G3 (P > 0.05). G2 presented the lowest mean values with statistically significant difference to G3 and G4 (P < 0.05).

Conclusions

Ultrasonic vibration with elongated cylindrical-shaped and active rounded tip was most effective in reducing force required for intraradicular post removal.

Citations

Citations to this article as recorded by

The effect of ultrasonic vibration protocols for cast post removal on the incidence of root dentin defects
Giulliano C. Serpa, Orlando A. Guedes, Neurinelma S. S. Freitas, Julio A. Silva, Carlos Estrela, Daniel A. Decurcio
Journal of Oral Science.2023; 65(3): 190. CrossRef
Activación ultrasónica durante la preparación bio químico mecánica del tratamiento endodóntico no quirúrgico. Revisión de la literatura
Gisselle Cantanzaro, Nelsin Villaroel, Diana Dorta
ODOUS Científica .2022; 22(2): 135. CrossRef
Endodontic Retreatment Using Dynamic Navigation: A Case Report
Jonathan Bardales-Alcocer, Marco Ramírez-Salomón, Elma Vega-Lizama, María López-Villanueva, Gabriel Alvarado-Cárdenas, Kenneth S. Serota, Jorgeraul Ramírez-Wong
Journal of Endodontics.2021; 47(6): 1007. CrossRef
Assessment of a Cavity to Optimize Ultrasonic Efficiency to Remove Intraradicular Posts
Izabela Araujo Aguiar Graça, Emílio Carlos Sponchiado Júnior, André Augusto Franco Marques, Leandro de Moura Martins, Ângela Delfina Bittencourt Garrido
Journal of Endodontics.2017; 43(8): 1350. CrossRef
REMOVAL ALLOY CAST ROOT INLAY BY LOWPOWER ULTRASONIC AND STANDARD TIP
L. D. Vejsgejm, T. N. Gomenjuk
Journal of Volgograd State Medical University.2017; 14(4): 37. CrossRef
Questioning the spot light on Hi-tech endodontics
Jojo Kottoor, Denzil Albuquerque
Restorative Dentistry & Endodontics.2016; 41(1): 80. CrossRef

403 View
5 Download
6 Crossref

Effect of passive ultrasonic agitation during final irrigation on cleaning capacity of hybrid instrumentation: Marcilene Coelho Vinhorte, Eduardo Hideki Suzuki, Maíra Sousa de Carvalho, André Augusto Franco Marques, Emílio Carlos Sponchiado Júnior, Lucas da Fonseca Roberti Garcia; Restor Dent Endod 2014;39(2):104-108. Published online March 21, 2014; DOI: https://doi.org/10.5395/rde.2014.39.2.104

Abstract PDF PubReader ePub

Objectives

To evaluate the effect of passive ultrasonic agitation on the cleaning capacity of a hybrid instrumentation technique.

Materials and Methods

Twenty mandibular incisors with mesiodistal-flattened root shape had their crowns sectioned at 1 mm from the cementoenamel junction. Instrumentation was initiated by catheterization with K-type files (Denstply Maillefer) #10, #15, and #20 at 3 mm from the working length. Cervical preparation was performed with Largo bur #1 (Dentsply Maillefer) followed by apical instrumentation with K-type files #15, #20 and #25, and finishing with ProTaper F2 file (Denstply Maillefer). All files were used up to the working length under irrigation with 1 mL of 2.5% sodium hypochlorite (Biodynâmica) at each instrument change. At the end of instrumentation, the roots were randomly separated into 2 groups (n = 10). All specimens received final irrigation with 1 mL of 2.5% sodium hypochlorite. The solution remained in the root canals in Group 1 for one minute; and ultrasonic agitation was performed in Group 2 for one minute using a straight tip inserted at 1 mm from working length. The specimens were processed histologically and the sections were analyzed under optic microscope (×64) to quantify debris present in the root canal.

Results

The samples submitted to ultrasonic agitation (Group 2) presented significant decrease in the amount of debris in comparison with those of Group 1 (p < 0.05).

Conclusions

The hybrid instrumentation technique associated with passive ultrasonic agitation promoted greater debris removal in the apical third of the root canals.

Citations

Citations to this article as recorded by

Micro-CT Evaluation of Different Root Canal Irrigation Protocols on the Removal of Accumulated Hard Tissue Debris: A Systematic Review and Meta-Analysis
Ailin Liang, Luo Huang, Baoyu Li, Yihua Huang, Xiaoyan Zhou, Xufang Zhang, Qimei Gong
Journal of Clinical Medicine.2022; 11(20): 6053. CrossRef
Ultrasonic Irrigant Activation during Root Canal Treatment: A Systematic Review
Petruţa E. Căpută, Anastasios Retsas, Lydwien Kuijk, Luis E. Chávez de Paz, Christos Boutsioukis
Journal of Endodontics.2019; 45(1): 31. CrossRef
Effect of Endodontic Irrigation Protocols on Crown Fracture Resistance
Marina Baechtold, Leonardo da Cunha, Erick Souza, Marilisa Gabardo, Kauhanna de Oliveira, Flares Baratto-Filho, Denise Leonardi
The Journal of Contemporary Dental Practice.2018; 19(7): 768. CrossRef
Influence of Prior Cervical Enlargement on Apical Cleaning Using Single File
Denise Piotto Leonardi, Celso Alfredo Schramm, Allan Fernando Giovanini, Cibelli Mariane Silveira, Flávia Sens Fagundes Tomazinho, Flares Baratto-Filho
The Bulletin of Tokyo Dental College.2015; 56(2): 85. CrossRef
Effect of three different irrigation solutions applied by passive ultrasonic irrigation
Carmen Llena, Leopoldo Forner, Raquel Cambralla, Adrian Lozano
Restorative Dentistry & Endodontics.2015; 40(2): 143. CrossRef
Evaluation of penetration depth of 2% chlorhexidine digluconate into root dentinal tubules using confocal laser scanning microscope
Sekar Vadhana, Jothi Latha, Natanasabapathy Velmurugan
Restorative Dentistry & Endodontics.2015; 40(2): 149. CrossRef

422 View
1 Download
6 Crossref

First
Prev
Page of 1
Next
Last

Search