Early implant failure: a retrospective analysis of contributing factors
10.5051/jpis.2019.49.5.287
- Author:
Dae Young KANG
1
;
Myeongjin KIM
;
Sung Jo LEE
;
In Woo CHO
;
Hyun Seung SHIN
;
Jordi CABALLÉ-SERRANO
;
Jung Chul PARK
Author Information
1. Department of Periodontology, Dankook University College of Dentistry, Cheonan, Korea. jcp@dent.dku.edu
- Publication Type:Original Article
- Keywords:
Dental implants;
Operative surgical procedures;
Osseointegration;
Risk factors
- MeSH:
Bone Regeneration;
Dental Arch;
Dental Implants;
Female;
Humans;
Jaw;
Male;
Osseointegration;
Prevalence;
Prospective Studies;
Prostheses and Implants;
Retrospective Studies;
Risk Factors;
Seoul;
Surgeons;
Surgical Procedures, Operative;
Survival Rate
- From:Journal of Periodontal & Implant Science
2019;49(5):287-298
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The aim of this retrospective study was to determine the prevalence of early implant failure using a single implant system and to identify the factors contributing to early implant failure. METHODS: Patients who received implant treatment with a single implant system (Luna®, Shinhung, Seoul, Korea) at Dankook University Dental Hospital from 2015 to 2017 were enrolled. The following data were collected for analysis: sex and age of the patient, seniority of the surgeon, diameter and length of the implant, position in the dental arch, access approach for sinus-floor elevation, and type of guided bone regeneration (GBR) procedure. The effect of each predictor was evaluated using the crude hazard ratio and the adjusted hazard ratio (aHR) in univariate and multivariate Cox regression analyses, respectively. RESULTS: This study analyzed 1,031 implants in 409 patients, who comprised 169 females and 240 males with a median age of 54 years (interquartile range [IQR], 47–61 years) and were followed up for a median of 7.2 months (IQR, 5.6–9.9 months) after implant placement. Thirty-five implants were removed prior to final prosthesis delivery, and the cumulative survival rate in the early phase at the implant level was 95.6%. Multivariate regression analysis revealed that seniority of the surgeon (residents: aHR=2.86; 95% confidence interval [CI], 1.37–5.94) and the jaw in which the implant was placed (mandible: aHR=2.31; 95% CI, 1.12–4.76) exerted statistically significant effects on early implant failure after adjusting for sex, age, dimensions of the implant, and type of GBR procedure (preoperative and/or simultaneous) (P<0.05). CONCLUSIONS: Prospective studies are warranted to further elucidate the factors contributing to early implant failure. In the meantime, surgeons should receive appropriate training and carefully select the bone bed in order to minimize the risk of early implant failure.
