The Journal of the Korean dental association (대한치과의사협회지)

The Korean Dental Association (대한치과의사협회)
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AN EXPERIMENTAL STUDY ON MARGINAL LEAKAGE OF THE DENTAL PERMANENT CEMENTS AFFECTED BY THE TEMPORARY CEMENTS

치과용 임시합착 Cement가 영구합착 Cement의 변연누출에 미치는 영향에 관한 실험적 연구

  • Lee, Hyeog (Dept. of Prosthodontics, College of Dentistry, Yon Sei University) ;
  • Lee, Ho-Yong (Dept. of Prosthodontics, College of Dentistry, Yon Sei University)
  • 이혁 (연세대학교 치과대학 보철학교실) ;
  • 이호용 (연세대학교 치과대학 보철학교실)
  • Published : 1984.04.30
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Abstract

This study was designed to observe the marginal leakage of three permanent cements affected by three temporary cements. The temporary cements used in this study were Zinc oxide-eugenol, Non-eugenol, and Calcium hydroxide cements and the permanent cements were Zinc phosphate, Polycarboxylate and Alumina reinforced EBA cements. To measure the dye penetration into permanently cemented zone, the experimental specimens were treated with the temporary cements for a week. An analysis of the data obtained from 120 specimens resulted in the following conclusions: 1. Regardless of the types of the permanent cements used, using Calcium hydroxide cement as temporary cement showed higher marginal leakage than other temporary cements. 2. Using Polycarboxylate cement as permanent cement showed less marginal leakage than other permanent cements. 3. The marginal leakage in zinc phosphate cement was similar to Alumina reinforced EBA cement regardless of the types of the temporary cements.

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