Clinical outcome of narrow diameter dental implants: a 3-year retrospective study

Maxillofacial Plastic and Reconstructive Surgery

Research

Jae-Eun Kim¹  Youngjae Yoon²  Yong-Dae Kwon²  Ahran Pae³ 

[1] Department of Dentistry, Graduate School, Kyung Hee University, Seoul, Republic of Korea;Department of Oral and Maxillofacial Surgery, College of Dentistry, Kyung Hee University, Seoul, Republic of Korea;Department of Prosthodontics, College of Dentistry, Kyung Hee University, Seoul, Republic of Korea;

关键词: Dental implants;    Retrospective studies;    Survival rate;    Mechanical complications;    Narrow diameter;   

DOI  :  10.1186/s40902-023-00394-6

 received in 2023-06-12, accepted in 2023-07-21,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundThis study aimed to analyze the clinical outcome and complications of narrow-diameter dental implants (NDIs) (diameter ≤3.5 mm).MethodsThe 274 NDIs that met the selection criteria from 2013 to 2018 were included in the retrospective study, and the survival rates (SVR) were compared. Mechanical complications included screw loosening and fractures of the implant components, such as the implant fixture, abutment, and prosthesis. In addition, marginal bone loss (MBL) was measured immediately after surgery and 1 year after loading.ResultsThe 3-year cumulative SVR was 92.4%. Nineteen fixtures failed during the follow-up. The failure rate was significantly higher (OR=4.573, p<0.05) in smokers and was significantly higher in osteoporosis patients (OR=3.420, p<0.05). The vertical and horizontal values of MBL were 0.33±0.32 mm and 0.18±0.17 mm, respectively. Mechanical complications included screw loosening (5.5%) and porcelain fracture (2.2%), but no fractures of the fixture or components were observed. The choice of titanium and zirconium (TiZr) alloy implant was significantly more frequent in the posterior region. Bone graft was significantly more frequently done in the anterior region.ConclusionsAccording to the high SVR and stability of NDIs, the findings of the study suggest that NDIs may be a replacement for regular diameter dental implants (RDIs) and the use of TiZr alloy could extend the indication of NDIs. In the esthetic area, contour augmentation may be a reason for increasing the frequency of bone grafts.

【 授权许可】

CC BY   
© The Author(s) 2023

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