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Impact of dental implant length on early failure rates: a meta-analysis of observational studies.
MedLine Citation:
PMID:  21722154     Owner:  NLM     Status:  Publisher    
Pommer B, Frantal S, Willer J, Posch M, Watzek G, Tepper G. Impact of dental implant length on early failure rates: a meta-analysis of observational studies. J Clin Periodontol 2011; doi: 10.1111/j.1600-051X.2011.01750.x. ABSTRACT: Aim: To test the null hypothesis of no difference in failure rates of short (minimum length: 7 mm) and longer dental implants (10 mm), a meta-analysis was performed on prospective observational trials. Materials and Methods: A systematic electronic and hand search was performed to identify eligible studies. Having additional data supplied by the authors, 54 publications were included (19,083 implants). Results: In case of mandibular implants, the null hypothesis of no impact of reduced implant length on failure within the first year of prosthetic loading could not be rejected. A significant impact of implant length could be substantiated for short machined implants in the anterior [odds ratio (OR) 5.4] and posterior maxilla (OR 3.4), while short rough-surfaced implants demonstrated increased failure rates in the anterior maxillary sites. No influence of implant diameter and denture type on the failure rate of short implants could be revealed. Conclusion: In areas of reduced alveolar bone height the use of short dental implants may reduce the need for invasive bone augmentation procedures.
Bernhard Pommer; Sophie Frantal; Jürgen Willer; Martin Posch; Georg Watzek; Gabor Tepper
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-3
Journal Detail:
Title:  Journal of clinical periodontology     Volume:  -     ISSN:  1600-051X     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0425123     Medline TA:  J Clin Periodontol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 John Wiley & Sons A/S.
Department of Oral Surgery, Bernhard Gottlieb School of Dentistry, Medical University of Vienna, Vienna, Austria Core Unit of Medical Statistics and Informatics, Medical University of Vienna, Vienna, Austria Department for Interdisciplinary Dentistry and Technology, Donau-University, Krems, Austria.
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