Safe and efficient dental cavity preparation by applying a gradient-in-power approach from Er,Cr:YSGG laser: an in-vitro study

Author:

Al-Shammari Alyamama MH.,Salman Ansam M.1ORCID,Al-janabi AbdulhadiORCID

Affiliation:

1. Al-Nahrain University

Abstract

In this in-vitro study, a gradient-in-power approach aims to ensure no temperature elevation beyond the necrosis limit (5.5 °C) during laser cavity preparation of dental hard tissues. The applied optimal Er,Cr:YSGG laser parameters were: 20 Hz pulse repetition rates (prr), average powers at a maximum of 5.5 W for enamel switched to a maximum of 3.5 W for dentine surface specimens. A fabricated fast-response all-optical fiber sensor was used to monitor temperature change simultaneously. A scanning electron microscope (SEM) and a Fourier transform infrared (FTIR) spectroscopy were used to assess the irradiated surfaces. Holes of 500 µm in depth were obtained with no morphological and chemical alterations.

Funder

Ministry of Higher Education and Scientific Research

University of Baghdad

Publisher

Optica Publishing Group

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