CAD/CAM个性化基台改善后牙区种植修复食物嵌塞的效果观察

Abstract

Abstract: Objective To investigate the clinical effect of CAD/CAM custom abutment used in posterior region for improving food impaction. Methods 80 cases of 65 patients for implant restoration in posterior region were randomly divided into two groups randomly: Test group included 40 CAD/CAM custom abutments, and control group included 40 stock abutments. 3 months after the completion of restoration, the morphology of gingival papilla was evaluated according to the papilla index score (PIS), the situation of food impaction was observed, and the correlation between them was analyzed. Results There were no cases of PIS 4 in both of the two groups, but there were more cases of PIS2 and PIS 3 in test group( 36 cases,90.00%) than in control group(29 cases,72.50%), while there were fewer cases of PIS 0 and PIS 1 in test group( 4 cases,10.00%) than in control group(11cases,27.50%) , the difference was statistically significant(P<0.05). 4 cases(10.00%) showed food impaction in test group, while 13 cases(32.50%) in control group, the difference was statistically significant(P<0.05). 2 cases(3.07%) showed food impaction in good papilla morphology group, while 15 cases(100%) in poor papilla morphology group, the difference was highly statistically significant(P<0.001). Conclusions When used in posterior region , CAD/CAM custom abutment can help to form better gingival papilla, reduce food impaction, and keep the tissue around the implant healthy.

Key words: CAD/CAM custom abutment , stock abutment , papilla index score , food impaction

CLC Number:

R783.4

References

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Effect observation of CAD/CAM custom abutment improving food impaction of implant restoration in posterior region

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