Nd:YAG Laser Irradiation of the Tooth Root Surface Inhibits Demineralization and Root Surface Softening Caused by Minocycline Application

Autor: Kazuhiro Osawa, Tomohisa Watanabe, Shinko Takahashi, Taeko Murakami, Chun Chan Ting, Toshihide Noguchi, Takeki Fujimura, Ayako Nagahara, Yuki Iwamura, Mitsuo Fukuda, Sohta Satoh, Akio Mitani
Rok vydání: 2013
Předmět:
Zdroj: Photomedicine and Laser Surgery. 31:571-577
ISSN: 1557-8550
1549-5418
DOI: 10.1089/pho.2013.3561
Popis: Objective: The aim of this study was to investigate the effect of laser irradiation on root surface demineralization caused by local drug delivery systems (DDS), and to evaluate the effect of sealing on drug retention. Background data: The duration of supportive periodontal treatment (SPT) has increased with increasing life expectancy. Repeated root planing and DDS application during SPT should be reconsidered with regard to their effects on the root surface. Methods: Extracted human teeth were collected, cut into 3×3×2 mm root dentin specimens, and divided randomly into eight groups with various combinations of Nd:YAG laser power (0, 0.5, 1, and 2 W), with and without DDS (minocycline HCl). Specimen microhardness and calcium (Ca) solubility were measured after treatment. The specimens (control and laser and DDS groups) were examined by scanning electron microscopy. Forty SPT patients were recruited, to assess the effect of periodontal pocket sealing on drug retention. Results: Laser irradiation increased the microhardness of root specimens in an energy-dependent manner. Calcium solubilities decreased from the 0 W+DDS group to the 2.0 W+DDS group. The mean Ca solubilities in the 1.0 W+DDS and 2.0 W+DDS groups were significantly lower than in the 0 W+DDS group (p
Databáze: OpenAIRE
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