Document Detail


Ridge dimensional changes following single-tooth extraction in the aesthetic zone.
MedLine Citation:
PMID:  23346895     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: The aims of this study were to investigate the magnitude of the dimensional changes following extraction of a single tooth in the aesthetic zone over a 6- to 8-week healing period and to examine the degree and pattern of resorption of the buccal bone plate during this time frame. MATERIALS AND METHODS: Twenty subjects who were to have a single tooth in the aesthetic zone extracted and replaced by an implant after a 6-8 week healing period were selected for this study. Hard and soft tissue measurements of the extraction site were obtained pre-extraction and were repeated 6-8 weeks post-extraction at defined points using a key. RESULTS: After a 6- to 8-week healing period, the total ridge thickness in the crestal midline reduced by 15% of the original value. The buccal plate resorbed in an "inverted V shape". Forty-two percentage of subjects had lost 4 mm or more of buccal bone in the midpoint of the extraction socket. DISCUSSION: After a 6- to 8-week healing period post-extraction, there were significant reductions in the hard and soft tissue dimensions of the ridge, most notably on the most coronal mid-buccal aspect. All implants placed required simultaneous augmentation as a result.
Authors:
Mark Farmer; Ivan Darby
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-25
Journal Detail:
Title:  Clinical oral implants research     Volume:  -     ISSN:  1600-0501     ISO Abbreviation:  Clin Oral Implants Res     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-25     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:
© 2013 John Wiley & Sons A/S. Published by Blackwell Publishing Ltd.
Affiliation:
Periodontics, Melbourne Dental School, University of Melbourne, Parkville, Vic., Australia.
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