الفهرس 
Evaluation of retention rate and fracture potential of zirconia pediatric crowns cemented by a bio-active cement and packable glass ionomer :A randomized control trial
ContentsOnly 14 pages are availabe for public view
 |  | from | 126 |  |  |
| | | from | 126 | | |
Abstract
Purpose: The purpose of this split-mouth study was to compare the efficacy of using Bio-active cement versus Packable glass ionomer for cementation of posterior zirconia pediatric crowns. Methods: 50 first mandibular primary molars were restored by zirconia crowns and were randomly divided to be luted with either; 1) Bio-active cement, 2) Packable glass ionomer. Crowns{u2019} retention, fracture, and gingival condition; were evaluated at 1 week, 1, 3, 6 and 9 months intervals. Statistical analysis was carried out using McNemar{u2019}s test,Kaplan-Meier survival analysis and Wilcoxon signed rank test. Results: At 3, 6, and 9 months; there were statistically significant (p=0.014, 0.021, 0.002) less debonded crowns in packable glass ionomer group. There were no cases of crown fracture for both cements. There was no statistically significant difference between gingival index scores. Conclusions: Packable glass ionomer is more retentive than bio-active cement when used for cementing zirconia pediatric crowns. Posterior zirconia pediatric crowns have high fracture resistance after 9 months follow-up, irrespective of luting cement. Luting cement for zirconia pediatric crowns has no apparent effect on gingival condition around crowns