Work

Effects of laser-aided circumferential supracrestal fiberotomy on root surfaces

Year: 2011

Type: article

Abstract: OBJECTIVE: To evaluate and compare the effects of circumferential supracrestal fiberotomy in vivo (using diode, CO(2), and Er∶YAG lasers) on the morphology and chemical composition of the root surface. MATERIALS AND METHODS: Forty healthy premolar teeth, intended for extraction for orthodontic reasons, were used in this study. Root surfaces were treated using different laser methods, as follows: (1) control; (2) Er∶YAG laser (2.94 µm, 100 mJ, 10 Hz); (3) diode laser (808 nm, 1.2 W, continuous wave); and (4) CO(2) laser (10.6 µm, 3 W, continuous wave). Subsequently, the teeth were removed and subjected to scanning electron microscopic (SEM) examination and energy dispersive x-ray (EDX) spectrometric analysis. RESULTS: SEM analysis indicated that no thermal changes, including melting or carbonization, were observed following the lasing procedures. EDX analysis showed that the laser procedures resulted in similar mineral contents (weight % of calcium and phosphate) as compared to those in the control group. CONCLUSION: Based on these findings, we concluded that laser-aided procedures, when used at appropriate laser settings, preserve the original morphology and chemical composition of cementum.

Source: The Angle Orthodontist

DOI: 10.2319/121710-727.1

Authors: Ji-Won Lee, Ki-Ho Park, Jong-Hyuk Chung, Su-Jung Kim

Institutions: Kyung Hee University, Kyung Hee University Dental Hospital

Language: English

Topic: Laser Applications in Dentistry and Medicine

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

Funder: Kyung Hee University