The Effect of Different Cavity Disinfectants on Microleakage and Interfacial Micromorphology of Class V Resin Composite Restorations Using Two Adhesive Systems (SEM-Study)

Authors

Ebtsam Kassab, Dentist at Ministry of Health and Population.
Maha Niazy, Professor and Head of Operative Dentistry Department, Faculty of Dental Medicine for Girls, Al-Azhar University.Follow
Mohammed El-Yasky, Professor of Operative Dentistry, Faculty of Dental Medicine for Girls, Al Azhar University and Dean of the Faculty of Dental Medicine, Sinai University.

Corresponding Author

Kassab, Ebtsam

Document Type

Original Study

Abstract

Purpose: This study was designed to evaluate and compare the effect of different cavity disinfectants on microleakage and interfacial micromorphology of class V resin composite restorations using two adhesive systems. Materials and Methods: Thirty six freshly extracted sound maxillary human premolar teeth were selected. Seventy two standardized class V cavities were prepared on both buccal and lingual surfaces of the selected premolars and randomly divided into three main groups (n=24) according to the cavity disinfectant used (A): silver nanoparticles (A1), ozone (A2), both of them (silver nanoparticles and ozone) (A3). Each group was subdivided into 2 subgroups (n=12) according to the type of the adhesive used (B): total-etch adhesive (B1), self-etch adhesive (B2). All cavities were restored with resin composite according to the manufacturer’s instructions and subjected to thermocycling (500 cycles, 5oC -55oC). Ten cavities from each group were examined for microleakage. The interfacial micromorphology of the remaining 2 cavities was examined by environmental scanning electron microscope (ESEM). Data were expressed in scores. Results: There was a statistical significant difference between the different groups, where the highest leakage scores were found in the silver nanoparticles groups, followed by the combination groups (p ≤ 0.05). While the least leakage scores were found in the ozone groups. Also the highest leakage scores were more frequent in the self-etch groups as well as at the gingival margins of the restorations. Conclusions: Microleakage of class V resin composite restoration is affected by the type of cavity disinfectant; being improved by using ozone though deteriorated by using silver nanoparticles. It is better to use the total etch adhesive rather than the self-etch one.

Keywords

silver nanoparticles; Ozone; Microleakage

How to Cite This Article

Kassab, Ebtsam; Niazy, Maha; and El-Yasky, Mohammed (2018) "The Effect of Different Cavity Disinfectants on Microleakage and Interfacial Micromorphology of Class V Resin Composite Restorations Using Two Adhesive Systems (SEM-Study)," Al-Azhar Journal of Dentistry: Vol. 5: Iss. 5, Article 11.
DOI: https://doi.org/10.21608/adjg.2018.109381

Subject Area

Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)