Journal of Oral Medicine and Pain
- 제20권2호
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- Pages.327-334
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- 1995
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- 2288-9272(pISSN)
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- 2383-8493(eISSN)
Pulsed Nd:YAG 레이저 조사거리에 따른 상아질의 온도변화
Temperature Changes in Dentin upon Pulsed Nd:YAG Lasing Distance
- Jae-Hyung Kim (Dept. of Oral Medicine, College of Dentistry, Chonnam National University) ;
- Woo-Cheon Kee (Dept. of Oral Medicine, College of Dentistry, Chonnam National University)
- 발행 : 1995.06.01
초록
In order to observe the influence of pulsed Nd:YAG laser at its out-of-contact with dentin on tooth temperature, we have applied pulsed Nd:YAG laser to 2mm thick dentin sample at a point of contact and from a distance of 1mm, 2mm, 3mm and 4mm with an energy of 0.3W, 0.5W, 0.8W, 1.5W and 2.0W. They were exposed to periods of 3 seconds, 6 seconds, 9 seconds and 15 seconds respectively and measured temperature changes. The results as follows : 1. When the time ad intensity of power were constant, the temperature changes on dentin of tooth depended on the distance. The temperature increased when the laser intensity increased bu two other conditions were contact. 2. At the point of contact, the temperature has risen over
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