A histopathological study of the effects of pulsed Nd:YAG laser irradiation on infected root canals in dogs

被引：20

作者：

Koba, K ^{[1
]}

Kimura, Y ^{[1
]}

Matsumoto, K ^{[1
]}

Takeuchi, T ^{[1
]}

Ikarugi, T ^{[1
]}

Shimizu, T ^{[1
]}

机构：

[1] Showa Univ, Sch Dent, Dept Endodont, Ohta Ku, Tokyo 1458515, Japan

来源：

JOURNAL OF ENDODONTICS | 1999年 / 25卷 / 03期

关键词：

D O I：

10.1016/S0099-2399(99)80131-9

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The effects of pulsed Nd:YAG laser irradiation during root canal treatment of infected teeth were investigated histopathologically in dogs. One hundred and eight teeth with a single root in 15 healthy adult beagle strain dogs were used in this study. After inducing infected teeth, each root canal was shaped with up to at least a #40 K-file; then, after coating with black ink, the canal was irradiated using the following parameters: 1 W, 30 pps, for 1 and 2 s, and 2 W, 30 pps, for 2 s. The degree of inflammation of the periapical regions at 2, 4, and 8 wk was examined histopathologically by light microscopy. Inflammation of the periapical regions in the laser-treated groups was significantly less than that in the control group at 4 and 8 wk (p < 0.05). These results suggest that pulsed Nd:YAG laser is useful for root canal treatment of infected teeth, if appropriate parameters are selected.

引用

页码：151 / 154

页数：4

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