Influence of enamel acid-etching on mechanical properties and nanoleakage of resin composite after aging

Coppini, Erick Kamiya; Prieto, Lúcia Trazzi; Pierote, Josué Junior Araújo; Araújo, Cíntia Tereza Pimenta de; Oliveira, Dayane Carvalho Ramos Salles de; Paulillo, Luís Alexandre Maffei Sartini

doi:10.20396/bjos.v16i0.8650500

Cited by 5 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bond strength can be evaluated by a variety of testing methods including shear, micro shear, and micro tensile tests. In this study, micro tensile bond strength (μTBS) was chosen as it permits the alignment of different samples in a proper way resulting in a stress pattern with a homogeneous distribution; also, it facilitates the longitudinal sectioning of the samples and provides better economic sample use (23) .…”

Section: Discussionmentioning

confidence: 99%

Effect of Two Denture Teeth Materials on Masticatory Efficiency, Wear, Bonding to Denture Base

Ahmed¹,

El-Din

Kabeel

2022

ADJ-for Girls

View full text Add to dashboard Cite

Purpose: This study compared between nano composite denture teeth and IPN crosslinked acrylic teeth regarding masticatory efficiency and some mechanical properties (wear, micro tensile bonding strength to denture base). Material and methods: Ten completely edentulous patients with ages ranging from 55-60 years were selected. Each patient received two dentures made from heat-cured acrylic resin , One with IPN crosslinked acrylic teeth and the other with nano composite teeth. Masticatory efficiency was evaluated for each patient at the time of insertion of the dentures and one month later.Laboratory study: For testing wear, thirty specimens were constructed and divided into two groups. Fifteen IPN cross-linked acrylic teeth (Group І) and Fifteen nano composite denture teeth (Group ІІ). For testing Micro tensile bonding strength, Twelve specimens were constructed of artificial teeth together with the heat-cured acrylic resin bases, These specimens were fixed to a micro-sawing machine and cut into one hundred and twenty micro beam samples which were then divided into two groups; sixty beams of IPN cross-linked acrylic teeth (Group І) and sixty beams of nano composite denture teeth (Group ІІ). Results: The results revealed no statistical significant differences (p ≤ 0.05) as indicated by paired t-test between IPN cross-linked acrylic teeth and nano composite teeth in masticatory efficiency, wear, and micro tensile bonding strength to the denture base. Conclusions: In comparison to IPN cross-linked acrylic teeth, nano composite denture teeth showed non-significant difference regarding masticatory efficiency, wear resistance, and micro tensile bonding strength to the denture base.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of Two Denture Teeth Materials on Masticatory Efficiency, Wear, Bonding to Denture Base

Ahmed¹,

El-Din

Kabeel

2022

ADJ-for Girls

View full text Add to dashboard Cite

show abstract

“…In this study, the Charisma Diamond resin was used, which showed no difference to the other composite resins. This resin has the TCD-urethane monomer, which according to the manufacturer, discards the use of diluting monomers and presents a molecule with three rings connected in a central portion, increasing the flexibility of the monomer and decreasing polymerization shrinkage 6,25 . This composite resin was expected to have better bonding properties due to such a characteristic, but this was not observed.…”

Section: Discussionmentioning

confidence: 99%

Influence of cavo superficial enamel acid-etching on the microtensile bond strength of low-shrinkage composite resin

Borghi

Coppini

Pierote

et al. 2020

Rev. odontol. UNESP

Self Cite

View full text Add to dashboard Cite

Introduction To prevent the shrinkage stresses produced during polymerization, composite resins of low polymerization shrinkage were developed. Objective To evaluate the microtensile bond strength in class I cavities restored by acid-etching the cavosurface angle and with composite resins indicated for posterior teeth. Material and method 48 healthy molars were selected and divided into six groups (n = 8), considering that the cavosurface enamel of three groups was etched with 35% phosphoric acid. The teeth were restored with the Clearfil SE Bond adhesive system and Filtek Z350 XT, Empress Direct, and Charisma Diamond composite resins, which were light-cured for 40 seconds. After 24 hours, the teeth were taken to a cutting machine, which produced sections in the buccolingual and mesiodistal directions. This resulted in toothpicks of 0.9×0.9 mm that were taken to the universal testing machine for the microtensile bond strength test. Statistical analysis was performed with ANOVA and Tukey’s test (p < 0.05). Result There was no statistically significant difference between the groups evaluated. Conclusion Acid-etching the cavosurface angle did not affect the performance of restorations, probably due to the adhesive system used.

show abstract

“…Measuring of bond strength can be evaluated by a variety of testing methods including shear, microshear and microtensile tests. In this study, microtensile bond strength (μTBS) was chosen as it permits the alignment of different samples in a proper way which result in a stress pattern with a homogeneous distribution also it facilitate the longitudinal sectioning of the samples and it provides better economic sample use and it can test the irregular surfaces [18] . The μTBS of each beam was calculated as the force of failure divided by the bonded cross-sectional surface area and expressed in MPa as Zhao et al in 2006 have done [19] .…”

Section: Discussionmentioning

confidence: 99%

Microtensile Bond Strength and Nanoleackage of Dentin Surfaces Pretreated With Different Etching Materials

Aziz

Imam

2018

Egyptian Dental Journal

View full text Add to dashboard Cite

This in-vitro study aimed to evaluate microtensile bond strength and nanoleackage of dentin surfaces pretreated with different etching materials. Twenty four extracted human intact second molar were selected and debrided to remove remnants of periodontal ligaments. Occlusal surfaces were flattened to expose a flat area of dentin under copious water coolant. One dentin bonding system (Te-Econom Bond) and one dental resin composite restoration (Tetric N-Ceram) were used for the study. The teeth were divided into four groups (6 each) according to the type of etchant material used as follows: group A -citric acid 6%, group B -citric acid 10%, group C -citric acid 20%, and group D-phosphoric acid 37%. The etchants were applied for 15 seconds to the dentin surface. After which teeth were washed, dried, then bonding agent was applied followed by the resin composite restoration. Then a longitudinal sectioning of restored teeth was made to obtain composite-dentin beams of (0.9 x 0.9 mm) in area. Each beam was composed of composite and dentin with adhesive at the interface. The microtensile bond strength (μTBS) was measured and the nanoleakage was observed using SEM. Data was then recorded, tabulated and statistically analyzed. There was no statistical significant difference between the results of the μTBS of groups A, B and D while group C has the lowest microtensile bond strength (19.20± 4.59). For all groups, nanoleackage was more demonstrated at group C and D, while group B show mild nanoleackage and no nanoleackage was observed for group A. It was concluded that low concentrations of citric acid was effective as etchant material compared to phosphoric acid on dentin surface in terms of microtensile bond strength and nanoleakage. (4004)

show abstract

Influence of enamel acid-etching on mechanical properties and nanoleakage of resin composite after aging

Cited by 5 publications

References 25 publications

Effect of Two Denture Teeth Materials on Masticatory Efficiency, Wear, Bonding to Denture Base

Effect of Two Denture Teeth Materials on Masticatory Efficiency, Wear, Bonding to Denture Base

Influence of cavo superficial enamel acid-etching on the microtensile bond strength of low-shrinkage composite resin

Microtensile Bond Strength and Nanoleackage of Dentin Surfaces Pretreated With Different Etching Materials

Contact Info

Product

Resources

About