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KMID : 0363020140440030102
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Journal of Korean Academy of Periodontology
2014 Volume.44 No. 3 p.102 ~ p.108
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Long-term implant success at the Academy for Oral Implantology: 8-year follow-up and risk factor analysis
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Busenlechner Dieter
Furhauser Rudolf
Haas Robert
Watzek Georg
Mailath Georg
Pommer Bernhard
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Abstract
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Purpose: Rehabilitation of the incomplete dentition by means of osseointegrated dental implants represents a highly predictable and widespread therapy; however, little is known about potential risk factors that may impair long-term implant success.
Methods: From 2004 to 2012, a total of 13,147 implants were placed in 4,316 patients at the Academy for Oral Implantology in Vienna. The survival rates after 8 years of follow-up were computed using the Kaplan-Meier method, and the impact of patient- and implant-related risk factors was assessed.
Results: Overall implant survival was 97% and was not associated with implant length (P=0.930), implant diameter (P=0.704), jaw location (P=0.545), implant position (P=0.450), local bone quality (P=0.398), previous bone augmentation surgery (P=0.617), or patient-related factors including osteoporosis (P=0.661), age (P=0.575), or diabetes mellitus (P=0.928). However, smoking increased the risk of implant failure by 3 folds (P<0.001) and a positive history of periodontal disease doubled the failure risk (P=0.001).
Conclusions: Summing up the long-term results of well over 10,000 implants at the Academy for Oral Implantology in Vienna it can be concluded that there is only a limited number of patients that do not qualify for implant therapy and may thus not benefit from improved quality of life associated with fixed implant-retained prostheses.
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KEYWORD
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Dental implants , Endosseous dental implantation , Implant-supported dental prosthesis , Periodontal diseases , Risk factors , Survival analysis
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