Evaluation of occlusal function of young permanent molars with serious dental defects repaired by different ways
CHEN Yu
CHEN Ke
LIU Zi-lin
Abstract：AIM:To evaluate the occlusal function of young permanent molars with serious dental defects repaired by different ways.METHODS:30 first permanent molars with serious dental defects in 30 patients aged 7-11 years were selected.The patients were randomly divided into 2 groups(n=15).The defects were restored with preformed metal crown(PMC group), resin and composite(RC group)respectively.The occlusal courses of each case was recorded by T-ScanⅢ system in intercuspal position.The premature contact and distribution of the occlusal force were examined.The recovery of occlusal function was analyzed.RESULTS:Right after treatment,the premature contact was found in 13 cases in PMC group and 1 case in RC group(P<0.05), 3 months after restoration 5 and 0(P=0.05), 6 months after restoration 0 and 0(P>0.05), respectively.Right after treatment, 3 and 6 monthsafter restoration the percent of occlusal force of PMC group and RC group was 28%, 25%, 33% and 19%, 17%, 22%, respectively(between 2 groups, P<0.05).CONCLUSION:The PMC repair method is better than resin composite restoration for the recover of occlusal function of dental defect of young permanent molar.
Keywords：young permanent molardental defectresin composite restorationpreformed metal crown
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 407-409,406 )