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A retrospective case series evaluating the outcome of implants with low primary stability

Authors
 Kwan‐Joo Lee  ;  Jae‐Kook Cha  ;  Ignacio Sanz‐Martin  ;  Mariano Sanz  ;  Ui‐Won Jung 
Citation
 Clinical Oral Implants Research, Vol.30(9) : 861-871, 2019 
Journal Title
 Clinical Oral Implants Research 
ISSN
 0905-7161 
Issue Date
2019
Keywords
dental implants ; implant stability ; osseointegration ; radiographic analysis ; survival rate
Abstract
OBJECTIVES: There is a need of more studies on whether low primary implant stability would negatively influence the success of implant therapy. Therefore, this retrospective study analyses outcomes of implants placed with low primary stability and factors that may be related to implant failures. MATERIAL AND METHODS: This retrospective study included 156 patients, restored with 169 implants that presented manual rotation within an observed follow-up time of a minimum of 34 days and a maximum of 9.28 years. Descriptive statistics, survival analyses (life tables and Kaplan-Meier estimates) and radiographic assessment based on marginal bone level measurements were performed. This original study was adherent to STROBE guidelines. RESULTS: Seven implants failed in seven patients, rendering cumulative survival rates of 94.74% (95% CI: 89.11-97.50) and 94.33% (95% CI: 88.30-97.30) at implant and patient levels, respectively. Kaplan-Meier estimates showed implant loss was found only in advanced surgery group (7 implant loss in 82 implants) when compared with simple surgery group (no implant loss in 87 implants; p = 0.005). CONCLUSIONS: Within the limitations of this retrospective study, implant placement with low primary stability might not negatively affect either the survival rates or marginal bone level changes of implants provided that a protected and unloaded healing is guaranteed.
Full Text
https://onlinelibrary.wiley.com/doi/full/10.1111/clr.13491
DOI
10.1111/clr.13491
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Kwan‐Joo(이관주)
Jung, Ui Won(정의원) ORCID logo https://orcid.org/0000-0001-6371-4172
Cha, Jae Kook(차재국) ORCID logo https://orcid.org/0000-0001-6817-9834
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171274
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