Document Detail

Soft and hard tissue alterations around implants placed in an alveolar ridge with a sloped configuration.
MedLine Citation:
PMID:  23210667     Owner:  NLM     Status:  Publisher    
AIM: The aim of this study was to evaluate soft and hard tissue alterations around implants placed in healed, sloped ridge sites. MATERIALS AND METHODS: In this prospective multi-center study, 65 patients between 20 and 74 years of age and with a need for a single tooth replacement were included. All patients presented with a recipient implant site demonstrating a lingual-buccal bone height discrepancy of 2.0-5.0 mm and with a neighboring tooth on its mesial aspect. Implant placement (OsseoSpeed™ Profile implants; Astra Tech AB, Mölndal, Sweden) was performed using a non-submerged installation procedure. The implants were placed in such a way that the sloped part of the device was located at the buccal and most apical position of the osteotomy preparation. As the buccal rim of the implant was positioned at the crestal bone level, the lingual rim became situated either below or at the level of the lingual bone crest. Clinical assessments of bone levels at the buccal and lingual aspects of the implant were carried out immediately after implant installation and at a surgical re-entry procedure performed 16 weeks later. Crowns were placed at 21 weeks after implant placement. Radiographs were obtained immediately after implant placement, at 16 and 21 weeks and at the 1-year re-examination. Clinical assessment of probing pocket depth and clinical attachment levels were carried out at 21 weeks and at 1 year of follow-up. RESULTS: The alterations of the bone levels that occurred between implant placement and the 16-week surgical re-entry were -0.02 mm (lingual) and -0.30 mm (buccal). The average change in interproximal bone levels between implant placement and the 1-year re-examination was 0.54 mm. Clinical attachment level changes between the 21 week and the 1-year examinations varied between 0.1 mm gain and 0.1 mm loss. CONCLUSION: Implant placement in an alveolar ridge with a sloped marginal configuration resulted in minor remodeling with preserved discrepancies between buccal and lingual bone levels.
Robert Noelken; Mauro Donati; Joseph Fiorellini; Nils-Claudius Gellrich; William Parker; Keisuke Wada; Tord Berglundh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-5
Journal Detail:
Title:  Clinical oral implants research     Volume:  -     ISSN:  1600-0501     ISO Abbreviation:  Clin Oral Implants Res     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-5     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:
© 2012 John Wiley & Sons A/S.
Private Practice, Lindau/Lake Constance, Germany; Lake Constance & University of Mainz, Mainz, Germany.
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