磨牙和前磨牙区即刻和延期种植体植入的临床和影像学效果。
Clinical and radiographic outcomes of immediate and delayed placement of dental implants in molar and premolar regions.
机构信息
Department of Oral and Maxillofacial Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Department of Oral and Maxillofacial Surgery, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea.
出版信息
Clin Implant Dent Relat Res. 2017 Aug;19(4):703-709. doi: 10.1111/cid.12496. Epub 2017 May 18.
PURPOSE
The purpose of this retrospective study was to determine clinical and radiographic outcomes of immediate and delayed placement of dental implants in molar and premolar regions.
MATERIALS AND METHODS
Clinical and radiographic records of 116 patients who received implants in molar and premolar regions were included in this study. After implantation, patients were recalled for assessments at 1 month, 3 months, 6 months, 1 year, and every year thereafter. In addition, anatomic location, type of prosthesis, gender, stage, diameter, and length of implants were analyzed.
RESULTS
Of these 116 patients, 55 were males, and 61 were females. Their mean age was 50.9 years. They received 85 immediate implants and 147 delayed implants in molar and premolar regions. Gender, type of prosthesis, stage, implant diameter, and implant length were not significantly different between the immediate placement group and the delayed placement group, although anatomic locations were significantly different between the 2 groups. Their mean follow up time after dental implantation was 3 years (range, 6 months to 9 years). Kaplan-Meier survival estimates showed 97.8% probability of survival up to 9 years in the delayed placement group and 100% probability of survival up to 8 years in the immediate placement group. There was no significant difference in implant survival according to the time of implantation. No significant difference in cervical bone loss (CBL) at the mesial or distal side was found between the 2 groups. CBL according to anatomic location, the type of prosthesis, or gender was not significantly different either between the 2 groups. However, CBL at distal side of 1-stage approach was significantly (P < .05) smaller in the delayed placement group than that in the immediate placement group.
CONCLUSION
This study showed that immediate dental implantation in molar and premolar regions had good clinical and radiographic outcomes.
目的
本回顾性研究的目的是确定磨牙和前磨牙区即刻和延迟植入牙种植体的临床和影像学结果。
材料与方法
本研究纳入了 116 例在磨牙和前磨牙区接受种植体植入的患者的临床和影像学记录。植入后，患者在 1 个月、3 个月、6 个月、1 年和此后每年进行随访评估。此外，还分析了种植体的解剖位置、修复体类型、性别、阶段、直径和长度。
结果
在这 116 例患者中，男性 55 例，女性 61 例，平均年龄为 50.9 岁。他们在磨牙和前磨牙区共接受了 85 颗即刻种植体和 147 颗延迟种植体。即刻种植组和延迟种植组在性别、修复体类型、阶段、种植体直径和种植体长度方面无显著差异，尽管两组的解剖位置存在显著差异。他们在牙种植体植入后的平均随访时间为 3 年（6 个月至 9 年）。Kaplan-Meier 生存估计显示，延迟种植组在 9 年内的生存率为 97.8%，即刻种植组在 8 年内的生存率为 100%。种植体生存率与种植时间无关。两组近中或远中侧颈骨吸收（CBL）无显著差异。两组解剖位置、修复体类型或性别间的 CBL 也无显著差异。然而，1 期手术远中侧的 CBL 在延迟种植组显著（P<0.05）小于即刻种植组。
结论
本研究表明，磨牙和前磨牙区即刻牙种植具有良好的临床和影像学效果。
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