J Adv Prosthodont.  2018 Jun;10(3):191-196. 10.4047/jap.2018.10.3.191.

A retrospective clinical study of single short implants (less than 8 mm) in posterior edentulous areas

Affiliations
  • 1Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea. kyk0505@snubh.org
  • 2Department of Dentistry & Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.

Abstract

PURPOSE
The goal of this study was to evaluate the clinical outcome of single short implants, less than 8 mm in length, placed in the posterior area.
MATERIALS AND METHODS
A total of 128 patients (75 male and 53 female, mean age: 52.6±11.2 years) with 154 implants participated. Implant marginal bone loss, and survival and success rates were measured.
RESULTS
The mean follow-up period was 51.35±24.97 months. A total of 128 implants, 8 mm in length, were placed in patients who had mean marginal bone loss of 0.75 mm. These implants had a survival rate of 95.3%. Twenty-six implants, 7 mm in length, were placed in areas with a mean marginal bone loss of 0.78 mm and had a survival rate of 96.2%. Both marginal bone loss and survival rate were not statistically different among the groups. In the maxilla, 34 implants showed a mean marginal bone loss of 0.77 mm and a survival rate of 97.1%. In the mandible, 120 implants showed a mean marginal bone loss of 0.75 mm and a survival rate of 95.0%. The average marginal bone loss around all implants was 0.76±0.27 mm at the last follow-up review after functional loading. The survival rate was 95.6% and success rate was 93.5%.
CONCLUSION
In our study, single short implants less than 8 mm in length in the posterior areas had favorable clinical outcomes.

Keyword

Short implants; Single implant
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