Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
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Effects of Acid-etching, CO2 and Nd:YAG Lasing on the Dentin Surface

산부식과 CO2 및 Nd:YAG 레이저 조사에 따른 상아질 표면의 변화

  • Lee, Jae-Hak (Department of Oral Medicine, College of Dentistry, Pusan National University) ;
  • Park, June-Sang (Department of Oral Medicine, College of Dentistry, Pusan National University) ;
  • Ko, Myung-Yun (Department of Oral Medicine, College of Dentistry, Pusan National University)
  • 이재학 (부산대학교 치과대학 구강내과학 교실) ;
  • 박준상 (부산대학교 치과대학 구강내과학 교실) ;
  • 고명연 (부산대학교 치과대학 구강내과학 교실)
  • Published : 2000.03.30
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Abstract

The purpose of this study was to examine dentin surface changes of extracted sound third molar specimens which were etched with 10% maleic acid and irradiated at $7-140J/cm^2$ with $CO_2$ and at $156-280J/cm^2$ with Nd:YAG laser. The results were as follows. 1. Dentin surfaces etched with 10% maleic acid and then irradiated at below of $42J/cm^2$ with $CO_2$ laser showed the retentive morphology for resin restoration. 2. Dentin surfaces irradiated at below of $42J/cm^2$ with $CO_2$ laser showed the increased acid-resistance. 3. Dentin surfaces irradiated at $218-280J/cm^2$ with Nd:YAG laser showed the retentive morphology. 4. Dentin surfaces irradiated at $218-280J/cm^2$ with Nd:YAG laser and etched 10% maleic acid and then $218-280J/cm^2$ with Nd:YAG laser showed the increased acid-resistance.

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