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Published on: June 24, 2018
[Clinical evaluation of two-implant-supported single molar restoration]
Wei Bi1, You-cheng Yu, Qing Wang
1Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China. bixcd@sina.com
Purpose:
This study was to evaluate the clinical effect of two-implant-supported single molar restoration with wider interdental space.
Methods:
32 subjects who presented 38 single molar missing with wider interdental space were involved in this study. Two-implant-supported single molar restoration was performed with Branemark system or Replace system. The stability of the implant restoration, periodontal condition, and peri-implant bone absorption were investigated 3 months, 1 year and 3 years after restoration. The periodontal condition was analyzed by Wilcoxon signed rank test or Chi-square test and the peri-implant bone absorption was analyzed by paired t test using SPSS13.0 software package.
Results:
Among 76 implants, one implant was lost in 2 weeks after surgery, which had been re-implanted successfully 3 months later. After loading, the survival rate of 76 implants was 100% during the next three years with perfect osseointegration. No significant differences for the plaque index, bleeding on probing, probing depth were found 3 months, 1 year and 3 years after restoration (P>0.05). The bone absorption of peri-implant was (0.56+/-0.14)mm at 3-month and stable trends were shown at 1 year (0.15+/-0.05)mm and 3 years (0.17+/-0.06)mm, both of which were significantly lower than that at 3-month (P<0.05).
Conclusion:
Two-implant-supported single restoration is suitable for single molar missing with wider interdental space.
