Journal
CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH
Volume 20, Issue 3, Pages 313-321Publisher
WILEY
DOI: 10.1111/cid.12587
Keywords
clinical outcomes; complications; dental abutment; dental implant; marginal bone loss; risk factors; soft tissues; surface properties
Categories
Funding
- Jonkoping County Council
- Swedish Research Council [K2015-52X-09495-28-4]
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy
- Region Vastra Gotaland
- ALF/LUA Research grant [ALFGBG-448851]
- Hjalmar Svensson Foundation
- Vilhelm and Martina Lundgren Vetenskapsfond
- IngaBritt and Arne Lundberg Foundation
Ask authors/readers for more resources
BackgroundData on risk factors and complications after long-term implant treatment is limited. The aims were to evaluate the role of various fixation modes and to analyze complications and risks that affect long-term use of implant-supported partial fixed dental prostheses. Materials and MethodsFifty partially edentulous subjects received three Branemark TiUnite implants. Superstructures were attached directly at implant level (IL) or via abutments: machined surface (AM) and an oxidized surface (AOX, TiUnite). Implants were immediately loaded (test) or unloaded for 3 months (control). Examinations occurred over a 5-year period. ResultsForty-four subjects were re-examined after 5 years. Cumulative survival rates in test and control groups were 93.9% and 97.0%, respectively. Marginal bone loss (MBL; Mean [SEM]) was significantly lower at superstructures connected to AM (1.61 [0.25] mm) than at sites with no abutment IL (2.14 [0.17] mm). Peri-implantitis occurred in 9.1% of subjects and in 4.0% of implants. Multiple linear regression indicated that increased probing pocket depth (PPD), periodontal disease experience, deteriorating health, and light smoking (10 cigarettes/day) predict greater MBL, whereas increased buccal soft tissue thickness and higher ISQ predict lower MBL. ConclusionsThe results show that MBL was influenced by the connection type. A machined abutment, instead of connecting the superstructure directly at the implant level, was beneficial. The following factors influenced MBL: PPD, periodontal disease experience, deteriorating health, light smoking, buccal soft tissue thickness, and ISQ. The results on peri-implantitis underscore the need for long-term maintenance care. Further, the abutment material surface properties constitute additional target for strategies to minimize MBL.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available