光重合型コンポジットレジン GRAFT LC II の臨床成績について : 1 年経過観察

Abstract

Restoration with the use of GRAFT LCII was made for 20 deciduous teeth, 20 immature permanent teeth and 20 permanent teeth, all with C_2 on the proximal and labial surface of anterior teeth, and a clinical observation of these teeth was made for one year. The results were as follows : 1. Poor marginal adaptation after one year was found in 1 case (5.0%) of the deciduous anterior teeth and in 2 cases (10.0%) each of the immature permanent anterior teeth and the permanent anterior teeth. 2. One year after, morphological changes were seen in 1 case (5.0%) of the deciduous anterior teeth and in 2 cases (10.0%) each of the immature permanent anterior teeth and the permanent anterior teeth. 3. Staining and discoloration were seen in 1 case (5.0%) each of the deciduous anterior teeth, immature permanent anterior teeth and permanent anterior teeth. 4. Partial marginal discoloration was seen in 1 case (5.0%) of the deciduous anterior teeth and in 2 cases (10.0%) each of the immature permanent anterior teeth and the permanent anterior teeth after one year. 5. Secondary caries was seen in 1 case (5.0%) of the deciduous anterior teeth and in 2 cases (10.0%) each of the immature permanent anterior teeth and the permanent anterior teeth after one year. 6. Pulp reaction at the time of restoration was found in 1 case (5.0%) of the deciduous anterior teeth. No pulp reaction was found in either of the immature permanent anterior teeth or the permanent anterior teeth. 7. Pulp reaction at the recall was found in 1 case (5.0%) each of the deciduous anterior teeth and permanent anterior teeth, and in 2 cases (10.0%) of the immature permanent anterior teeth, but pulpal procedure was not required. On the basis of the foregoing findings, it is suggested that GRAFT LCII is effective for restoration of anterior teeth.