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Comparative Study
. 2013 Dec;92(12 Suppl):202S-7S.
doi: 10.1177/0022034513510322. Epub 2013 Oct 24.

A retrospective study of implant-abutment connections on crestal bone level

M-I Lin  1 , Y-W Shen, H-L Huang, J-T Hsu, L-J Fuh
Affiliations
Comparative Study

A retrospective study of implant-abutment connections on crestal bone level

M-I Lin et al. J Dent Res. 2013 Dec.

Abstract

This study compared the effects of external hex, internal octagon, and internal Morse taper implant-abutment connections on the peri-implant bone level before and after the occlusal loading of dental implants. Periapical radiographs of 103 implants (63 patients) placed between 2002 and 2010 were collected, digitized, standardized, and classified into groups based on the type of implant-abutment connection. These radiographs were then analyzed with image-processing software to measure the peri-implant crestal bone change during the healing phase (4 months after implant placement) and at loading phases 1 and 2 (3 and 6 months after occlusal loading, respectively). A generalized estimating equation method was employed for statistical analysis. The amount of peri-implant crestal bone change differed significantly among all time-phase pairs for all 3 types of implant-abutment connection, being greater in the healing phase than in loading phase 1 or 2. However, the peri-implant crestal bone change did not differ significantly among the 3 types of implant-abutment connections during the healing phase, loading phase 1, or loading phase 2. This retrospective clinical study reveals that the design of the implant-abutment connection appears to have no significant impact on short-term peri-implant crestal bone change.

Keywords: alveolar bone loss; internal Morse taper; internal octagon; peri-implant crestal bone change dental implant–abutment design; radiology.

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Conflict of interest statement

The authors declare no potential conflicts of interest with respect to the authorship and/or publication of this article.

Figures

Figure.
Figure.
The measurement reference points: the bone–implant contact point (BICP), the vertical bone gap (VBG), and the implant–abutment junction (IAJ).
See this image and copyright information in PMC

References

    1. Abrahamsson I, Berglundh T. (2009). Effects of different impalnt surfaces and designs on marginal bone-level alternations: a review. Clin Oral Implants Res 20(Suppl 4):207-215 - PubMed
    1. Albrektsson T, Zarb G, Worthington P, Eriksson AR. (1986). The long-term efficacy of currently used dental implants: a review and proposed criteria of success. Int J Oral Maxillofac Implants 1:11-25 - PubMed
    1. Astrand P, Engquist B, Dahlgren S, Gröndahl K, Engquist E, Feldmann H. (2004). Astra Tech and Brånemark system implants: a 5-year prospective study of marginal bone reactions. Clin Oral Implants Res 15:413-420 - PubMed
    1. Baffone GM, Botticelli D, Pantani F, Cardoso LC, Schweikert MT, Lang NP. (2011). Influence of various implant platform configurations on peri-implant tissue dimensions: an experimental study in dog. Clin Oral Implants Res 22:438-444 - PubMed
    1. Buser D, Ingimarsson S, Dula K, Lussi A, Hirt HP, Belser UC. (2002). Long-term stability of osseointegrated implants in augmented bone: a 5-year prospective study in partially edentulous patients. Int J Periodontics Restorative Dent 22:109-117 - PubMed

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