Document Detail


Axial relationship between dental implants and teeth: A radiographic study.
MedLine Citation:
PMID:  22963369     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Purpose: The relationship of dental implants with neighboring teeth will affect both occlusal relationship and distribution of forces; thus the purpose of this study was to examine implants` axial relationship with adjacent and opposing teeth / implants. Materials & Methods: Data of dental implants patients was retrieved. Panoramic x-rays were digitized. Computer-based software was used to measure the angular relationship between the implants and adjacent/opposing teeth and implants. Data was further sorted by the mode of placement and implants' position. Results: 50 patients (219 implants) were included. Mean angle to adjacent tooth/implant was 178.71 ± 9.18 (range 129.7-206). Implants were more parallel to adjacent teeth (180.99±1.06) than to adjacent implants (176.32±0.54; p=0.0001). Mean angular relationship to opposite tooth was 167.88 ± 8.92 (range 137.7-179.8). Implants that were placed freehand or with positional guide had similar intra-arch relationship (178.22 & 178.81respectively) and similar inter-arch angulations (164.46 & 167.74). Molars had greater deviation of the angular relationship (175.54) compared to pre-molars (181.62) and incisors (180.55, p=0.0001). Implants placed in the maxilla had smaller axial deviation compared to implants in the mandible (180.41 ± 0.64 versus 177.14 ± 1.02; p = 0.0081). Conclusion: Good axial relationship may be obtained in most implants placed by an experienced clinician even when placed freehand. The mandibular posterior region is more prone to axial deviation and as such requires special attention.
Authors:
Eli E Machtei; Orit Oettinger-Barak; Jacob Horwitz
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-10
Journal Detail:
Title:  The Journal of oral implantology     Volume:  -     ISSN:  0160-6972     ISO Abbreviation:  J Oral Implantol     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7801086     Medline TA:  J Oral Implantol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
a Harvard School of Dental Medicine, Visiting Assoc. Professor, Periodontology - Oral Medicine, Harvard School of Dental Medicine.
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