Chatzopoulos Georgios S, Wolff Larry F
Division of Periodontology, University of Minnesota, Minneapolis, Minnesota, USA.
Faculty of Dentistry, Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Clin Exp Dent Res. 2025 Feb;11(1):e70096. doi: 10.1002/cre2.70096.
This large-scale retrospective study aims to evaluate and compare the long-term survival rates of dental implants placed immediately after tooth extraction (type 1) versus those placed at a later stage (types 2, 3, and 4). Additionally, it examines how patient characteristics and implant site conditions influence the choice of implant placement.
This study retrospectively analyzed patient data from 10 university dental clinics between 2011 and 2022 and examined dental implant treatment outcomes. Patient information, including age, sex, ethnicity, race, smoking, and medical status, was analyzed.
Records of 20,842 patients with 50,333 dental implants inserted between 2011 and 2022 were analyzed. The multivariate analysis resulted in significant differences for age, ethnicity, race, gender, and asthma. A 98.4% survival rate for dental implants placed immediately following extraction and a 98.6% survival rate for those placed in fully healed sockets were recorded. The type of implant placement (immediate vs. delayed) showed no significant effect on implant outcome.
Immediate implant placement resulted in high survival rates with delayed implants inserted into healed sites. Both immediate and delayed implant placements are viable therapeutic approaches demonstrating predictable outcomes.
这项大规模回顾性研究旨在评估和比较拔牙后立即植入的牙科种植体（1型）与后期植入的牙科种植体（2型、3型和4型）的长期生存率。此外，研究还考察了患者特征和种植部位条件如何影响种植体植入的选择。
本研究回顾性分析了2011年至2022年间10所大学牙科诊所的患者数据，并检查了牙科种植治疗结果。分析了患者信息，包括年龄、性别、种族、民族、吸烟情况和健康状况。
分析了2011年至2022年间20842例患者植入50333颗牙科种植体的记录。多变量分析显示年龄、种族、民族、性别和哮喘存在显著差异。拔牙后立即植入的牙科种植体生存率为98.4%，植入完全愈合牙槽窝的种植体生存率为98.6%。种植体植入类型（即刻与延期）对种植体结果无显著影响。
即刻种植的生存率较高，延期种植则植入愈合部位。即刻种植和延期种植都是可行的治疗方法，结果均可预测。
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