Chinese Journal of Oral Implantology ›› 2024, Vol. 29 ›› Issue (3): 242-251.DOI: 10.12337/zgkqzzxzz.2024.06.009

• Key Column “Implant - Related Treatment and Progress of Congenital Tooth Agenesis” • Previous Articles     Next Articles

A systematic literature review on the implant survival rate for congenitally missing teeth

Zhao Yu1, Zan Bingxin1, Dai Qinggang1,2   

  1. 1Department of Second Dental Center, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 201999, China;
    2Center of Stomatology, Hainan Hospital, Danzhou 571700, Hainan, China
  • Received:2024-04-19 Online:2024-06-30 Published:2024-06-28
  • Contact: Dai Qinggang, Email: daiqinggang@126.com, Tel: 0086-21-56691101 -7540
  • Supported by:
    Natural Science Foundation of Shanghai (21ZR1436900); Hainan Provincial Natural Science Foundation of China (824MS152)

Abstract: Objective To review the relevant literature from the last decade reporting on the outcomes of congenitally edentulous patients after implant prosthetic restoration, and to synthesize the implant survival rates from different perspectives to provide information for clinical decision-making. Methods A search using the combination ("hypodontia" OR "oligodontia" OR "anodontia" OR "tooth agenesis" OR "congenitally missing teeth") AND "dental implant*" was used in databases such as PubMed, with a time frame from February 2014 to February 2024. The literature was screened according to the established inclusion and exclusion criteria, and the bibliographies of the selected research articles were manually searched. Results A total of 34 prospective/retrospective studies and some case reports on implant restorations in congenitally edentulous patients were finally included. It was found that the overall implant survival rate in these patients was high, with an average of 96.53%, depending on individual patient factors and treatment techniques. Congenital edentulism was categorized into simple congenital edentulism and syndromic congenital edentulism, with survival rates of 97.32% and 95.54%, respectively, based on the relationship with systemic diseases. There were slight differences in implant survival rates between different age groups, with 93.82% for patients aged 17 years and younger, and 96.83% for adult patients aged 18 years and older. The maxillary lateral incisors, with a high rate of congenital defects involving the anterior esthetic zone, had an ideal implant survival rate (98.48%). The implant survival rate for congenitally edentulous patients combined with bone augmentation techniques was 96.19%. The survival rates for zygomatic implants and small-diameter implants (or mini-implants) were 98.18% and 97.18%, respectively. Conclusion Implant surgery is a better solution to restoring oral function in congenitally edentulous patients. However, it still needs to be analyzed according to the patient's situation to improve the implant survival rates and the success of implant restoration.

Key words: Implant prosthesis, Congenitally missing teeth, Survival rate, Success rate, Ectodermal dysplasia