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Updated: Jun 1, 2026
Laser Nanosurgery of Cerebellar Axons In Vivo
Published on: July 28, 2014
Effects of laser-aided circumferential supracrestal fiberotomy on root surfaces
Ji-Won Lee1, Ki-Ho Park, Jong-Hyuk Chung
1Graduate School of Dentistry, Kyung Hee University, Seoul, Korea.
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.
