✦ LIBER ✦

The possibility of dowel removal by pulsed Nd:YAG laser irradiation

✍ Scribed by Masaaki Takashina; Arata Ebihara; Mitsuhiro Sunakawa; Tomoo Anjo; Atsushi Takeda; Hideaki Suda

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 191 KB
Volume: 31
Category: Article
ISSN: 0196-8092
DOI: 10.1002/lsm.10064

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Background and Objectives

Nd:YAG laser is one of the popularly used laser, in dentistry for treatment and technologic processing. Removal of dowel from root canal is very troublesome at endodontic retreatment. This study aimed to examine the possibility and efficiency of dowel removal from the root canal using the Nd:YAG laser in vitro.

Study Design/Materials and Methods

Irradiation time and energies required for complete removal of the dowel set in the root canal using the laser were measured. The dowel ablation was observed by contact microradiographs (CMRs). The surface of the root canal after lasing was observed by a scanning electron microscope (SEM).

Results

A significant difference existed in irradiation times and energies to remove dowels among various combinations of metal and cement (P < 0.05). The CMRs showed that both dowel and dentin were ablated, and the SEM observation demonstrated that root canal surface was melted.

Conclusions

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