Nd : YAG 레이저 조사에 의한 치아 및 구강점막의 마취효과
A Study on the Anesthetic Effects of Pulsed Nd:YAG Laser Irradiation to the Oral Mucosa and the Teeth
최재갑, 기우천, 이청희, 이재목,
소속 상세정보
최재갑 ( Choi Jae-Kap ) - 경북대학교 치과대학 구강내과학교실
기우천 ( Kee Woo-Cheon ) - 경북대학교 치과대학 구강내과학교실
이청희 ( Lee Cheong-Hee ) - 경북대학교 치과대학 보철학교실
이재목 ( Lee Jae-Mok ) - 경북대학교 치과대학 치주과학교실
KMID : 0355219980230010001
Abstract
The aim of the study was to evaluate the anesthetic effects of pulsed Nd:YAG laser irradiation to the oral mucosa and the teeth. Twenty subjects who didn´t have a history of significant systemic or current oral diseases were included in this study. All the subjects were divided randomly into the experimental group and the control group with 10 for each group. Pain thresholds were measured with Weighted Needle Pinprick Sensory Threshold Test for the mucosal surface of lower lip and with electric pulp test for the upper right central incisor respectively, before and immediately after pulsed Nd:YAG laser irradiation in the condition of 2 watt, 20 pps for 2 minute at l0 mm distance. The experiment was double-blinded clinical trial.
The results were as follows; .
1. The mean pain threshold of the mucosal surface of lower lip for Weighted Needle Pinprick Sensory Threshold Test was 2.94±0.67g for experimental group and 3.34±1.00g for the control group respectively, and there was no statistical difference between two groups.
2. The mean pain threshold of the mucosal surface of lower lip was significantly increased immediately after pulsed Nd:YAG laser irradiation.
3. The mean pain threshold of the upper right central incisor for electric pulp test was 34.50±4.97V in the experimental group and 34.00±13.08V in the control group respectively, and there was no statistical difference between two groups.
4. The mean pain threshold of the upper right central incisor was significantly increased immediately after pulsed Nd:YAG laser irradiation.
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