The effect of various bonding systems on the microtensile bond strength of immediate and delayed dentin sealing

Ha, Jiyeon; Kim, Hyeon‐Cheol; Hur, Bock; Park, Jeong-Kil

doi:10.5395/jkacd.2008.33.6.526

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…Regardless of the composite type, the results of this study indicated that group B experienced less microleakage when using the direct-indirect veneer approach than group A Nanohybrid-microfilled composite 0:15 ± 0:36 BioMed Research International when using the direct veneer technique. This is because the final strength of the tooth-restoration complex is significantly dependent on adhesive techniques when using the direct-indirect approach [28]. Additionally, this approach minimizes polymerization shrinkage since the polymerization happens outside the cavity, leaving only the resin cement to contract and connect the restoration to the tooth structure [29].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Sealing Ability of Direct versus Direct-Indirect Veneer Techniques: An In Vitro Study

Abdulrahman

2021

BioMed Research International

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Backgrounds. Marginal discoloration, microleakage, wear, and marginal fractures are all prevalent problems with composite veneers, and this scenario leads the esthetic outcome to deteriorate with time, resulting in patient discontent. Aim of the Study. The study’s goal was to determine the marginal sealing ability of composite laminate veneers when employing two types of veneer techniques: direct and direct-indirect veneers, as well as two types of composite resin: nanohybrid and microfilled composite resin restorations, using dye penetration method. Materials and Methods. In this study, forty extracted human teeth were utilized. Following a standardized veneer preparation on the labial surface of the teeth, they were separated into two groups of 20 teeth each, using the following composite application techniques: group A: direct veneers and group B: direct-indirect veneers. Following that, each major group was separated into two subgroups of ten teeth each, based on the type of composite employed: subgroup 1 used nanohybrid composite resin, while subgroup 2 used microfilled composite resin. All of the samples were kept in distilled water, thermocycled, and soaked in 2% basic fuchsine dye. These specimens were sectioned and examined under a stereomicroscope for dye penetration at the gingival margin. The data was analyzed using independent T -tests using SPSS 22. Result. Using direct-indirect veneer technique with nanohybrid composite resin material resulted in the most negligible dye penetration at the gingival margin, while using direct veneer technique with microfilled composite resin material resulted in the maximum dye penetration. For both composite materials, gingival microleakage was lower when using the direct-indirect veneer technique than when using the direct technique, and the difference was statistically significant ( P < 0.05 ). In both techniques, gingival microleakage was lower with nanohybrid composite than with microfilled composite, and the difference was statistically highly significant ( P = 0.001 ). Conclusion. The sealing ability of the gingival margin of tooth/composite interface is better when applying direct-indirect veneer technique with nanohybrid composite resin than that of direct veneer technique with microfilled composite resin material.

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Section: Discussionmentioning

confidence: 99%

Evaluation of the Sealing Ability of Direct versus Direct-Indirect Veneer Techniques: An In Vitro Study

Abdulrahman

2021

BioMed Research International

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“…Self-etching systems are required to completely dissolve and incorporate the smear layer in order to interact with the underlying mineralized dentin. 31,32) However, in the presence of this more acid-resistant surface, the weak acids present in the self-etching system cannot sufficiently modify the surface to promote adhesive penetration. Since Clearfil SE bond used in current study is categorized in mild self-etching bonding system according to its acidity (pH = 1.8), the μ TBS of laser-irradiated Clearfil SE bond group was the lowest of all tested groups.…”

Section: ⅳ Discussionmentioning

confidence: 99%

The effect of Er,Cr:YSGG irradiation on microtensile bond strength of composite resin restoration

Son

Kim

Hur

et al. 2010

J Korean Acad Conserv Dent

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The purpose of this study was to evaluate the effect of Er,Cr:YSGG laser irradiation with hypersensitivity mode on microtensile bond strength of composite resin. Twenty extracted permanent molars were randomly assigned to six groups, according to the irradiation of Er,Cr:YSGG laser, adhesive system (Optibond FL or Clearfil SE bond) and application time of etchant (15 sec or 20 sec). Then composite resin was build up on each conditioned surface. The restored teeth were stored in distilled water at room temperature for 24 h and twelve specimens for each group were prepared. All specimens were subjected to microtensile bond strength and the fracture modes were evaluated. Also, the prepared dentin surface and laser irradiated dentin surface were examined under SEM.The results were as follows: 1. The microtensile bond strength of laser irradiated group was lower than that of no laser irradiated group. 2. Regardless of laser irradiation, the microtensile bond strength of Optibond FL was higher than that of Clearfil SE bond. And the microtensile bond strength of 20 sec etching group was higher than that of 15 sec etching group when using Optibond FL. 3. The SEM image of laser irradiated dentin surface showed prominent peritubular dentin, opened dentinal tubules and no smear layer. [J Kor Acad Cons Dent 35(2):134-142, 2010]

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The effect of various bonding systems on the microtensile bond strength of immediate and delayed dentin sealing

Cited by 2 publications

References 19 publications

Evaluation of the Sealing Ability of Direct versus Direct-Indirect Veneer Techniques: An In Vitro Study

Evaluation of the Sealing Ability of Direct versus Direct-Indirect Veneer Techniques: An In Vitro Study

The effect of Er,Cr:YSGG irradiation on microtensile bond strength of composite resin restoration

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