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:: Volume 28, Issue 1 (1-2016) ::
J Iran Dent Assoc 2016, 28(1): 14-19 Back to browse issues page
In Vitro Microleakage of Class V Composite Restorations in Use of Three Adhesive Systems
Fariba Motevaselian1 , Esmaeil Yassine2 , Mansooreh Mirzaee * 3, Mohammad Javad Kharazifard4 , Solmaz Heydari5 , Mona Shafiee6
1- Assistant Professor, Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
2- Professor, Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
3- Associate Professor, Dental Research Center, Dentistry Research Institute, Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran , mirzaiim@tums.ac.ir
4- Research Member, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
5- PhD, Student of Dental Material, Tehran University of Medical Sciences, Tehran, Iran
6- Dentist, Private Office, Tehran, Iran
Abstract:   (3732 Views)

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.

Materials and Methods: This in vitro, experimental study was conducted on 68 human molars. Class V cavities were prepared in the buccal or lingual surfaces of the teeth with occlusal margins in the enamel and gingival margins in dentin. The teeth were then randomly divided into four groups of 17. Group A: Adper Single Bond 2, group B: Clearfil SE Bond, group C: Scotchbond Universal adhesive (self-etch) and group D: Scotchbond Universal adhesive (total-etch). The teeth were then restored using different bonding agents and a microhybrid composite resin. The specimens were then subjected to 1000 thermal cycles between 5-55°C. The entire restoration surface except for 1mm around the margins was coated with nail varnish. The teeth were immersed in 2% methylene blue for 24 hours and sectioned longitudinally in a buccolingual direction and observed under a stereomicroscope to determine microleakage. Microleakage in use of the three bonding agents was compared using the Kruskal Wallis test (P<0.05).

Results: Based on the Kruskal Wallis test, no significant difference was noted in enamel and dentin margins among different adhesives but the enamel margin showed less microleakage than the dentin margin.
Conclusion: Different adhesive systems tested in this study showed similar microleakage at the enamel and dentinal margins.
 
Keywords: Dentin-Bonding Agents, Composite Resins, Dental Leakage
Full-Text [PDF 311 kb]   (2021 Downloads)    
Type of Study: Original | Subject: Restorative Dentistry
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Motevaselian F, Yassine E, Mirzaee M, Kharazifard M J, Heydari S, Shafiee M. In Vitro Microleakage of Class V Composite Restorations in Use of Three Adhesive Systems. J Iran Dent Assoc 2016; 28 (1) :14-19
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Volume 28, Issue 1 (1-2016) Back to browse issues page
Journal of Iranian Dental Association

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