Maxillofac Plast Reconstr Surg.  2016 Aug;38(8):31. 10.1186/s40902-016-0077-x.

Narrow-diameter implants with conical connection for restoring the posterior edentulous region

• Woo IH
• Kim JW
• Kang SY
• Kim YH
• Yang BE

• KMID: 2351665
• DOI: http://doi.org/10.1186/s40902-016-0077-x

Abstract

BACKGROUND
The objective of this retrospective study was to show results from platform-switched narrow-diameter implants in the posterior edentulous region, which we followed up for more than 1 year after functional loading.
METHODS
Ninety-eight narrow implants were inserted into 66 patients. After healing, fixed implant-supported prostheses were delivered to the patients, and Periotest and radiographic examinations were performed. After the first year of loading, the implant outcome was again evaluated clinically and radiographically using the Periotest analysis. Crestal bone loss and Periotest values (PTVs) were used to evaluate the effect of surgery, prosthesis, implant, and a host-related factor. A general linear model was used to statistically detect variables statistically associated with crestal bone loss and Periotest value.
RESULTS
We followed up on the implants over 1 to 4 years after loading; their survival rate was 100%, and pronounced differences from PTVs were noted among jaw location, bone quality, and loading period. No difference was detected in bone loss among the variables studied. Bone loss after functional loading was 0.14 ± 0.39 mm. The stability value from the Periotest was −3.29 ± 0.50.
CONCLUSIONS
Within the limitations of this study, judicious use of platform-switched narrow implants with a conical connection must be considered an alternative for wide-diameter implants to restore a posterior edentulous region.

Keyword

Dental implant platform switching; Conical dental implant-abutment connection; Narrow-diameter implants; Posterior edentulous

MeSH Terms

Dental Implant-Abutment Design
Humans
Jaw
Linear Models
Prostheses and Implants
Retrospective Studies
Survival Rate