Clinical Retrospective Study on Combination of Screw and Adhesive Retention in Multi-unit Implant Restoration

doi:10.13701/j.cnki.kqyxyj.2022.02.007

Abstract

Abstract: Objective: To compare the differences among SCP (screw and cement-retained implant-supported dental prosthesis) group, adhesion retention group, and screw retention group for multi-unit implant crown restoration. Methods: A total of 152 patients (331 implants) were collected, in which 44 cases (94 implants) were fixed with screws, 56 cases (121 implants) were treated with intraoral adhesion, and 52 cases (116 implants, 52 implants were retained with screws and 64 implants with adhesive retentions) were treated with SCP. The incidences of adhesion and screw mechanical complications in 3 groups were compared after 2-year use. Results: There was no significant difference in the incidence of screw loosening between the SCP group and the cement-retained group, but these incidences of both groups were lower than that in the screw-retented group. There was no significant difference in the failure rate between the intraoral bonding units of SCP group and the extraoral bonding units of screw-retented group (P>0.05). Conclusion: The multi-unit SCP retention method can reduce the risk of screw loosening and bonding failure while having passive fit, and is suitable for the cases with insufficient occlusal space for crown restoration and/or with deep soft tissue cuff.

Key words: dental implants prosthesis, screw-retained implant, cement-retained implant, passive fit

ZHOU Liwei, LI Mengquan. Clinical Retrospective Study on Combination of Screw and Adhesive Retention in Multi-unit Implant Restoration[J]. Journal of Oral Science Research, 2022, 38(2): 125-128.

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