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The effect of cavity disinfectants on microleakage of composite restorations in primary teeth

Type:  Articles

Pubblication date:  /1/2015

Authors:  F. Salama*, H. Balto**, F. Al-Yahya***, S. Al-Mofareh***

Language:  English

Institution:  College of Dentistry, King Saud University, Riyadh, Saudi Arabia *Department of Pediatric Dentistry and Orthodontics **Department of Restorative Dental Sciences, Division of Endodontics ***Dental Interns

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Chlorhexidine Gluconate; Dental Materials/Biomaterials; Microleakage; Salvadora persica; Sodium Hypochlorite.

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Email:  [email protected]

Title:  The effect of cavity disinfectants on microleakage of composite restorations in primary teeth

Abstract:  Aim The purpose of this study was to determine the effect of different cavity disinfectants on microleakage of Class V resin-based composite restorations in primary teeth. Materials and methods Standard non-beveled Class V cavities were prepared on 50 human primary anterior teeth with the incisal and cervical margin placed on the enamel. The crowns were randomly divided into 6 groups. Four experimental groups of 10 teeth each, in which cavities were disinfected using the following solutions: 1) S. persica extract (Ethanol 1 mg/ml); 2) 1.3% sodium hypochlorite (NaOCl); 3) 0.2% chlorhexidine gluconate (CHX), and 4) No solution applied. Two control groups; 5 teeth each; 5) Negative control: filled cavity and entirely coated with nail varnish and 6) positive control: empty cavity and without nail varnish coating. Each cavity in groups 1-5 were filled with Filtek™ Z350 XT Universal Restorative (3M Espe, St. Paul, USA). All specimens were thermocycled for 500 cycles (5°C/55°C) and prepared for microleakage evaluation using a 2% methylene blue. Results For the experimental groups; there was no significant difference in dye penetration between the incisal and cervical walls in all groups (P=0.176). However comparing microleakage by location/walls showed a significant difference in dye penetration between the incisal walls (P=0.014) and cervical walls (P=.045). Conclusions None of the disinfectant solutions in the experimental groups were able to prevent dye penetration. In comparison to chlorhexidine gluconate and sodium hypochlorite; application of S. persica did not increase microleakage and was not detrimental to enamel and dentin adhesion using the restorative technique and materials used in this study.

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