microleakage of dual-cured adhesive systems in class v composite resin restorations.

Authors

s kasraie associate professor, dental research center, dental school, hamadan university of medical sciences, hamadan, iran.

m azarsina

z khamverdi

f shokraneh

abstract

microleakage is a major factor affecting longevity of composite restorations. this study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations.forty-eight class v cavities were prepared on buccal and lingual surfaces of 24 extracted human premolars. occlusal and gingival margins were placed in the enamel and dentin, respectively. teeth were divided into four groups as follows: group i: optibond solo plus (light-cured); group ii: optibond solo plus (dual-cured); group iii: prime & bond nt (light-cured), group iv: prime & bond nt (dual-cured). teeth were restored using z250 composite in three increments. after polishing the restorations, samples were thermocycled for 1000 cycles and stored in distilled water for 3 months. then they were placed in 2% fuchsine solution for 48 hours. the samples were sectioned longitudinally and evaluated for microleakage under a stereomicroscope at ×40 magnification. dye penetration was scored on a 0-3 ordinal scale. data were analyzed using kruskal-wallis, bonferroni and wilcoxon signed ranks test.microleakage was significantly lower in enamel margins compared to dentin margins (p 0.05). prime & bond nt had less microleakage compared to optibond soloplus, but the difference was not significant (p>0.05).there was no difference in the amount of microleakage in class v composite restorations using light-cured and dual-cured bonding systems. dentinal margins of restorations exhibited more microleakage than enamel margins.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Microleakage of Dual-Cured Adhesive Systems in Class V Composite Resin Restorations

OBJECTIVE Microleakage is a major factor affecting longevity of composite restorations. This study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations. MATERIALS AND METHODS Forty-eight Class V cavities were prepared on buccal and lingual surfaces of 24 extracted human premolars. Occlusal and gingival margins were placed in the enamel and den...

full text

In Vitro Microleakage of Class V Composite Restorations in Use of Three Adhesive Systems

Background and Aim: Microleakage is a drawback of composite restorations and it is more noticeable in dentinal walls. Despite advances in dentin bonding agents, no adhesive can completely eliminate microleakage and provide a hermetic seal. This study aimed to compare microleakage of three resin bonding agents namely a universal adhesive, two-step self-etch system and two-step total-etch system....

full text

Microleakage comparison of three types of adhesive systems versus GIC-based adhesive in class V composite restorations

Background and aims: New dentin bonding agents and techniques have been developed to reduce microleakage and create higher bond strength. This in-vitro study compared the microleakage of three resin-based adhesives versus a GIC-based adhesive on class V composite restorations.  Materials and Methods: Class V cavities were prepared on the buccal surfaces of 72 sound premolars, randomly assigned ...

full text

sealing of adhesive systems in ferric sulfate-contaminated dentinal margins in class v composite resin restorations

background. hemostatic agents are applied to prepare an isolated bleeding-free condition during dental treatments and can influence adhesive restorations. this study evaluated the effect of a hemostatic agent (viscostat) on microleakage of contaminated dentinal margin of class v composite resin restorations with three adhesives. methods. sixty freshly extracted human molars were selected and cl...

full text

Microleakage Evaluation of Class II Composite Resin Restorations with Different Thicknesses of Resin-Modified Glass Ionomer

Background and Aim: One of the weaknesses of Class II composite resin restorations is gingival microleakage which contributes to postoperative sensitivity and secondary caries. The aim was to evaluate the microleakage in Class II composite resin restorations with different thicknesses of resin-modified glass ionomer (RMGI). Materials and Methods: In this in-vitro study, standardized Class II s...

full text

microleakage comparison of three types of adhesive systems versus gic-based adhesive in class v composite restorations

background and aims: new dentin bonding agents and techniques have been developed to reduce microleakage and create higher bond strength. this in-vitro study compared the microleakage of three resin-based adhesives versus a gic-based adhesive on class v composite restorations.  materials and methods: class v cavities were prepared on the buccal surfaces of 72 sound premolars, randomly assigned ...

full text

My Resources

Save resource for easier access later


Journal title:
journal of dentistry, tehran university of medical sciences

جلد ۹، شماره ۲، صفحات ۹۹-۱۰۶

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023