Document Detail

Submerged and transmucosal healing yield the same clinical outcomes with two-piece implants in the anterior maxilla and mandible: interim 1-year results of a randomized, controlled clinical trial.
MedLine Citation:
PMID:  21722188     Owner:  NLM     Status:  Publisher    
Objectives: To test whether or not transmucosal healing at two-piece implants is as successful as submerged placement regarding crestal bone levels and patient satisfaction. Material and methods: Adults requiring implants in the anterior maxilla or mandible in regions 21-25, 11-15, 31-35 or 41-45 (WHO) were recruited for this randomized, controlled multi-center clinical trial of a 5-year duration. Randomization was performed at implantation allowing for either submerged or transmucosal healing. Final reconstructions were seated 6 months after implantation. Radiographic interproximal crestal bone levels and peri-implant soft tissue parameters were measured at implant placement (IP) (baseline), 6 and 12 months. Patient satisfaction was assessed by a questionnaire. A two-sided t-test (80% power, significance level α=0.05) was performed on bone-level changes at 6 and 12 months. Results: One hundred and twenty-seven subjects were included in the 12-month analysis (submerged [S]: 52.5%, transmucosal [TM]: 47.2%). From IP to 6 months, the change in the crestal bone level was -0.32 mm (P<0.001) for the S group and -0.29 mm (P<0.001) for the TM group. From IP to 12 months, bone-level changes were statistically significant in both groups (S -0.47 mm, P<0.001; TM -0.48 mm, P<0.001). The mean differences of change in the bone levels between the two groups were not statistically significant at either time point, indicating the equivalence of both procedures. For both groups, very good results were obtained for soft tissue parameters and for patient satisfaction. Conclusions: Transmucosal healing of two-piece implants is as successful as the submerged healing mode with respect to tissue integration and patient satisfaction within the first 12 months after IP. To cite this article: Hämmerle CHF, Jung RE, Sanz M, Chen S, Martin WC, Jackowski J, Ivanoff CJ, Cordaro L, Ganeles J, Weingart D, Wiltfang J, Gahlert M. Submerged and transmucosal healing yield the same clinical outcomes with two-piece implants in the anterior maxilla and mandible: interim 1-year results of a randomized, controlled clinical trial. Clin. Oral Impl. Res xx, 2011; 000-000 doi: 10.1111/j.1600-0501.2011.02210.x.
Christoph H F Hämmerle; Ronald E Jung; Mariano Sanz; Stephen Chen; William C Martin; Jochen Jackowski; ; Carl-Johan Ivanoff; Luca Cordaro; Jeffrey Ganeles; Dieter Weingart; Jörg Wiltfang; Michael Gahlert
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-4
Journal Detail:
Title:  Clinical oral implants research     Volume:  -     ISSN:  1600-0501     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105713     Medline TA:  Clin Oral Implants Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 John Wiley & Sons A/S.
Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center of Dental Medicine, University of Zurich, Zurich, Switzerland Department of Periodontology, Universidad Complutense de Madrid, Madrid, Spain Balwyn Periodontic Centre, School of Dental Science, University of Melbourne, Melbourne, Australia Department of Prosthodontics, College of Dentistry, University of Florida, Gainesville, FL, USA Department of Oral Surgery and Dental Emergency Care, Faculty of Health, University Witten/Herdecke, Witten, Germany Department of Oral and Maxillofacial Surgery, SU/Mölndal Hospital, Mölndal and the Sahlgrenska Academy, Göteborg University, Mölndal, Sweden Department of Periodontology and Prosthodontics, Eastman Dental Hospital, Rome, Italy Florida Institute for Periodontics and Dental Implants, Boca Raton, FL, USA Department of Oral, Maxillo and Facial Plastic Surgery, Center for Implant Dentistry, Klinikum Stuttgart, Germany Department of Oral and Maxillofacial Surgery, University of Schleswig-Holstein, Kiel, Germany Private Dental Clinic, Munich, Germany.
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