Restorative Dentistry & Endodontics

Research Article

Effect of chlorhexidine application on the bond strength of resin core to axial dentin in endodontic cavity: Yun-Hee Kim, Dong-Hoon Shin; Restor Dent Endod 2012;37(4):207-214. Published online November 21, 2012; DOI: https://doi.org/10.5395/rde.2012.37.4.207

Objectives

This study evaluated the influence of chlorhexidine (CHX) on the microtensile bonds strength (µTBS) of resin core with two adhesive systems to dentin in endodontic cavities.

Materials and Methods

Flat dentinal surfaces in 40 molar endodontic cavities were treated with self-etch adhesive system, Contax (DMG) and total-etch adhesive system, Adper Single Bond 2 (3M ESPE) after the following surface treatments: (1) Priming only (Contax), (2) CHX for 15 sec + rinsing + priming (Contax), (3) Etching with priming (Adper Single Bond 2), (4) Etching + CHX for 15 sec + rinsing + priming (Adper Single Bond 2). Resin composite build-ups were made with LuxaCore (DMG) using a bulk method and polymerized for 40 sec. For each condition, half of specimens were submitted to µTBS after 24 hr storage and half of them were submitted to thermocycling of 10,000 cycles between 5℃ and 55℃ before testing. The data were analyzed using ANOVA and independent t-test at a significance level of 95%.

Results

CHX pre-treatment did not affect the bond strength of specimens tested at the immediate testing period, regardless of dentin surface treatments. However, after 10,000 thermocycling, all groups showed reduced bond strength. The amount of reduction was greater in groups without CHX treatments than groups with CHX treatment. These characteristics were the same in both self-etch adhesive system and total-etch adhesive system.

Conclusions

2% CHX application for 15 sec proved to alleviate the decrease of bond strength of dentin bonding systems. No significant difference was shown in µTBS between total-etching system and self-etching system.

Citations

Citations to this article as recorded by

Micro Tensile bond strength and microleakage assessment of total-etch and self-etch adhesive bonded to carious affected dentin disinfected with Chlorhexidine, Curcumin, and Malachite green
Zeeshan Qamar, Nishath Sayed Abdul, R Naveen Reddy, Mahesh Shenoy, Saleh Alghufaili, Yousef Alqublan, Ali Barakat
Photodiagnosis and Photodynamic Therapy.2023; 43: 103636. CrossRef
The Classification and Selection of Adhesive Agents; an Overview for the General Dentist
Naji Ziad Arandi
Clinical, Cosmetic and Investigational Dentistry.2023; Volume 15: 165. CrossRef
Influence of chlorhexidine 2% and sodium hypochlorite 5.25% on micro-tensile bond strength of universal adhesive system (G-Premio Bond)
Nafiseh Fazelian, Abbas Rahimi Dashtaki, MohammadAmin Eftekharian, Batool Amiri
Brazilian Journal of Oral Sciences.2022;[Epub] CrossRef
Comparative evaluation of the effects of different methods of post space preparation in primary anterior teeth on the fracture resistance of tooth restorations
Bahman Seraj, Sara Ghadimi, Ebrahim Najafpoor, Fatemeh Abdolalian, razieh khanmohammadi
Journal of Dental Research, Dental Clinics, Dental Prospects.2019; 13(2): 141. CrossRef
Chemical, microbial, and host‐related factors: effects on the integrity of dentin and the dentin–biomaterial interface
Marcela T. Carrilho, Fabiana Piveta, Leo Tjäderhane
Endodontic Topics.2015; 33(1): 50. CrossRef
MMP Inhibitors on Dentin Stability
A.F. Montagner, R. Sarkis-Onofre, T. Pereira-Cenci, M.S. Cenci
Journal of Dental Research.2014; 93(8): 733. CrossRef
Thermal cycling for restorative materials: Does a standardized protocol exist in laboratory testing? A literature review
Anna Lucia Morresi, Maurizio D'Amario, Mario Capogreco, Roberto Gatto, Giuseppe Marzo, Camillo D'Arcangelo, Annalisa Monaco
Journal of the Mechanical Behavior of Biomedical Materials.2014; 29: 295. CrossRef

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Original Article

Comparison of warm gutta-percha condensation techniques in ribbon shaped canal: weight of filled gutta-percha: Hyun-Hee Kim, Kyung-Mo Cho, Jin-Woo Kim; J Korean Acad Conserv Dent 2002;27(3):277-283. Published online May 31, 2002; DOI: https://doi.org/10.5395/JKACD.2002.27.3.277

Abstract PDF PubReader ePub

The purpose of this study is to evaluate the two warm gutta-percha filling techniques by measuring the weight changes of resin blocks before and after canal filling in ribbon shaped canal. Simulated ribbon shaped root canals in 30 transparent resin blocks were instrumented to #40 using .06 taper Profile. 15 resin blocks were obturated with gutta-percha using cold lateral condensation. Warm lateral condensation using the Endotec II was then accomplished on the same 15 blocks. Another 15 resin blocks were obturated using the System B. All canals were obturated without sealer. The resin blocks were weighed after canal preparation and after each subsequent obturation, and then weight changes of the resin blocks were calculated.

The results were as follows.

1. Warm lateral condensation using Endotec II and continuous wave of condensation using System B produced a denser obturation of gutta-percha compared with conventional cold lateral condensation (p<0.01).

2. There was no significant difference between warm lateral condensation and continuous wave condensation.

In conclusion, the warm gutta-percha condensation techniques like warm lateral condensation and continuous wave condensation can be expected to bring favorable canal obturation results in ribbon shaped canals.

Citations

Citations to this article as recorded by

Evaluation of the Root and Canal Morphology of Maxillary and Mandibular Premolars in an Emirati Sub-Population
Hanadi Almehrzi, Summaya Khawajah, Nouf Alharbi, Rashid El Abed, Mohamed Jamal
International Dental Journal.2025;[Epub] CrossRef
Aetiology, incidence and morphology of the C‐shaped root canal system and its impact on clinical endodontics
A. Kato, A. Ziegler, N. Higuchi, K. Nakata, H. Nakamura, N. Ohno
International Endodontic Journal.2014; 47(11): 1012. CrossRef

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