Influence of Oscillating Packing Instrument on Microhardness of Bulk-Fill Composite: In Vitro Study

Emad Mohamed Bayoumi; Mohamed Farid Riad; Mohamed Mostafa Zayed; Mostafa Abou Shelib; Ahmed Mohamed Bayoumi; Yaser Fathy Hussein

doi:10.3889/oamjms.2020.4478

Authors

Emad Mohamed Bayoumi Department of Conservative Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Mohamed Farid Riad Department of Conservative Dentistry, Faculty of Dentistry, Cairo University, Cairo, Egypt
Mohamed Mostafa Zayed Department of Conservative Dentistry, Faculty of Dentistry, Minia University, Minia, Egypt
Mostafa Abou Shelib Dental Material, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Ahmed Mohamed Bayoumi Department of Conservative Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Yaser Fathy Hussein Dental Material, Faculty of Dentistry, Minia University, Minia, Egypt

DOI:

https://doi.org/10.3889/oamjms.2020.4478

Keywords:

Microhardness, Bulk-fill composite, Compothixo, Tetric EvoCeram Bulk Fill

Abstract

AIM: This study aimed to assess Vickers microhardness of Tetric EvoCeram Bulk Fill composite that was packed manually and using oscillating packing device.

MATERIALS AND METHODS: Two different packing techniques were applied on Tetric EvoCeram Bulk Fill composite. For each packing technique, ten specimens (6 mm in diameter and 4 mm height) were prepared using a black-shaded Teflon mold. The resin was inserted in a bulk increment either packed manually or using Compothixo oscillating device and then light-cured for 40 s. Microhardness was analyzed at the top and the bottom surfaces.

RESULTS: Overall, for both packing techniques, microhardness decreased significantly with the increase of depth. Tetric EvoCeram Bulk Fill composite when packed either manually or using oscillating device, did not show significant difference neither at the top surfaces of both applied techniques nor at the bottom surfaces of both applied techniques.

CONCLUSION: Different packing techniques did not influence the microhardness of Tetric EvoCeram Bulk Fill composite.

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