Abstract:
Objectives
The purpose of this clinical study was to compare the short-term prosthetic outcomes of screw- and cement-retained implant-supported restorations after 1 year follow-up.
Methods
A total of 70 dental implants were placed in the posterior regions of 42 partially edentulous patients. 24 crowns were screw-retained, while 46 crowns were cementretained. Peri-implant marginal bone level, modified plaque index (mPLI), modified sulcus bleeding index (mSBI) and esthetic fulfillment were recorded at the 12 months recall after implant loading.
Results
The mean peri-implant marginal bone lost in screw-retained group and cementretained group were 0.78 mm and 0.68 mm, respectively. The median values of mPLI and mSBI were both 1 in screw-retained group, and also 1 in cement-retained group. The median scores of esthetic fulfillment were both 1 in screw-retained and cement-retained group. The differences of marginal bone resorption, peri-implant soft tissue condition and patient satisfaction between two groups were statistically not significant (P >0.05).
Conclusions
The short-term clinical outcomes of implant restorations are satisfactory, either screw-retained or cement-retained. The retention patterns seem to have few influences on the prosthetic outcomes of implant-supported restorations.
Key words:
Screw-retained,
Cement-retained,
Implant-supported restoration
Sen-qing LIU, Fei-long DENG, Hui ZHANG, Chenhan LIU, Hua ZHANG, Pei-fen ZHANG. A comparison of prosthetic outcomes of screw and cement-retained implant-supported restorations in the posterior region[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2008, 02(05): 504-512.