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. 2014 Apr;40(2):68-75.
doi: 10.5125/jkaoms.2014.40.2.68. Epub 2014 Apr 28.

The seven-year cumulative survival rate of Osstem implants

Young-Kyun Kim  1 , Bum-Su Kim  1 , Pil-Young Yun  1 , Sang-Un Mun  2 , Yang-Jin Yi  3 , Su-Gwan Kim  4 , Kyung-In Jeong  4
Affiliations

The seven-year cumulative survival rate of Osstem implants

Young-Kyun Kim et al. J Korean Assoc Oral Maxillofac Surg. 2014 Apr.

Erratum in

  • J Korean Assoc Oral Maxillofac Surg. 2014 Jun;40(3):152

Abstract

Objectives: This study was performed to analyze the cumulative survival rate of Osstem implants (Osstem Implant Co., Ltd.) over a seven-year period.

Materials and methods: A total of 105 patients who had 467 Osstem implants that were placed at the Section of Dentistry, Seoul National University Bundang Hospital (Seongnam, Korea) from June 2003 through December 2005 were analyzed. The life table method and a cross-tabulation analysis were performed to evaluate the cumulative survival rate. The log rank test was used to evaluate the survival curve. The influence that the prognostic factors had on the survival rate was determined with a Cox proportional hazard model based on logistic regression analysis [corrected].

Results: The seven-year cumulative survival rate of Osstem implants was 95.37%. The Cox proportional hazard model revealed that the following factors had a significant influence on survival rate; increased diameter, reduced prosthetic loading period and performance of bone grafting.

Conclusion: The osstem implants showed satisfactory results over the seven-year study period.

Keywords: Dental implants; Survival rate.

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Conflict of interest statement

No potential conflict of interest relevant to this article was reported.

Figures

Fig. 1
Fig. 1
Survival function curve.
Fig. 2
Fig. 2
Hazard function curve.
Fig. 3
Fig. 3
Comparison of the survival function curves between subgroups. SS II, US II, and GS II are Osstem implants (Osstem Implant Co., Ltd.).
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