Light-cured composite resin materials for dental crown defective repair

Yu Hua; Zhang Xiao-dong; Wang Yi-jing; Wei Jing; Liu Jiao-jiao; Li Yu-jie

doi:10.3969/j.issn.2095-4344.2013.47.020

Abstract：BACKGROUND:Light-cured composite resin is used for dental crown defective repair in terms of both function and morphology. <br> OBJECTIVE:To investigate the therapeutic effects of light-cured composite resins on crown defects. <br> METHODS:Relevant literatures concerning light-cured composite resins for repair of crown defects were retrieved. Literatures which met the study standard were deeply analyzed. Meanwhile, fol ow-up results and literature results were compared for patients receiving light-cured composite resins for repair of crown defects to identify the feasibility of light-cured composite resins for repair of crown defects. <br> RESULTS AND CONCLUSION:Based on the included data, the successful rate of light-cured composite resins for repair of crown defects was over 90%. Clinical fol ow-up of 12 patients undergoing light-cured composite resin showed that the repaired crowns were stable and fixed, and exhibited a symmetrical appearance with the contralateral namesake tooth of the adjacent tooth, and there was a normal bite relationship. During the fol ow-up study, 19 teeth repaired from 12 patients had no loosing, no shedding, no percussion pain and normal bite relationship. X-ray films showed no apical shadows. Light-cured effects were limited to the upper and middle parts but not to the apical part. Therefore, a better therapeutic effect can be obtained.