Department of Emergency, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, China.
Department of Periodontology, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, NMPA Key Laboratory for Dental Materials, Beijing, China.
Clin Oral Implants Res. 2022 Jul;33(7):735-744. doi: 10.1111/clr.13949. Epub 2022 May 14.
To investigate the 3-year implant-related outcomes following alveolar ridge preservation in periodontally compromised molar sockets.
Thirty implants were placed in 26 patients following either ridge preservation (test, n = 16) or natural healing (control, n = 14) at deficient molar extraction sites after a 6-month healing period. The need for additional augmentation procedures at implant placement was recorded. Patients were assessed for 3 years following a definitive restoration. Patient information being collected included modified plaque index, the modified sulcus bleeding index, the peri-implant probing depth clinically, and alterations of marginal bone level (MBL) radiographically.
There was a 100% survival rate of implants in both groups after 3-year follow-up. During implant placement operation, 35.7% in the control group and 6.3% in the test group required additional augmentation procedures. No statistically significant differences were determined for peri-implant parameters and marginal bone levels between the two groups. The overall mean difference of MBL was 0.072 mm (95% CI [-0.279, 0.423]) during the 3 years of follow-up. The success rate was 81.2% in the test and 78.6% in the control group.
Implants placed into periodontally compromised molar-extracted sites after ridge augmentation resulted in comparable outcomes to implant placement at naturally healed sites after 3-year functional loading. (Chinese Clinical Trial Registry ChiCTR-ONN-16009433).
研究牙周病损磨牙拔牙窝牙槽嵴保存 3 年后的种植体相关结局。
在 6 个月的愈合期后，26 名患者的 16 个磨牙拔牙窝采用牙槽嵴保存（试验组），14 个磨牙拔牙窝采用自然愈合（对照组），分别植入 30 个种植体。记录种植体植入时是否需要额外的增强程序。在最终修复后 3 年对患者进行评估。收集的患者信息包括改良菌斑指数、改良龈沟出血指数、临床探诊的种植体周围探诊深度和边缘骨水平（MBL）的影像学变化。
两组患者在 3 年随访后种植体的存活率均为 100%。在种植体植入手术中，对照组有 35.7%、试验组有 6.3%需要额外的增强程序。两组间种植体周围参数和边缘骨水平无统计学差异。3 年随访期间，MBL 的总体平均差异为 0.072mm（95%CI[-0.279，0.423]）。试验组的成功率为 81.2%，对照组为 78.6%。
在牙周病损磨牙拔牙窝行牙槽嵴增强后植入种植体，与 3 年功能负荷后自然愈合部位植入种植体的结果相当。（中国临床试验注册中心 ChiCTR-ONN-16009433）。
