种植体初始生物学宽度对边缘骨水平的影响  

Effect of the initial biological width of implant on marginal bone level

作　　者：罗昕 冯宜[2,4] 何福明 LUO Xin;FENG Yi;HE Fuming(Department of Oral Prosthodontics,The Affiliated Stomatology Hospital,Zhejiang University School of Medicine,Hangzhou 310006,China)

机构地区：[1]浙江大学医学院附属口腔医院修复科,浙江杭州310006 [2]浙江省口腔生物医学研究重点实验室,浙江杭州310006 [3]杭州市余杭区第三人民医院口腔科,浙江杭州311115 [4]浙江大学医学院附属口腔医院城西分院修复科,浙江杭州310000

出　　处：《口腔医学》2021年第2期154-158,共5页Stomatology

基　　金：国家重点研发计划(2016YFC1102705)。

摘　　要：目的探索种植体初始生物学宽度对边缘骨水平(marginal bone level,MBL)的影响。方法选择后牙区接受Straumann骨水平种植固定修复的80例患者。测量种植体4个时间点(术前、术后即刻、二期、回访)的影像学数据。将术后即刻种植体肩台冠方的软硬组织空间定义为初始生物学宽度(initial biologic width,IBW):数值为齐骨种植时的黏膜厚度,或骨下种植时黏膜厚度和种植深度的总和。IBW以3.5 mm分组,比较种植体回访的MBL。结果 1~5年回访,127枚植体近远中共254个位点。IBW≥3.5 mm组,呈现更理想MBL(0.40 mm vs. 0.00 mm,P<0.05),MBL有更高概率稳定于种植体肩台或以上水平(95.6%vs. 87.2%,P<0.05)。结论黏膜厚度和种植深度共同影响种植体MBL。对于Straumann骨水平系统,IBW≥3.5 mm,远期回访MBL更可能稳定于种植体肩台或以上水平。Objective To explore the effect of the initial biological width of implant on marginal bone level(MBL). Methods Eighty patients who received Straumann bone level implant and fixed prosthesis in the posterior dental area were selected. The oral panoramic radiographs of each implant at four time points(preoperative, postoperative, second-stage, follow-up) were measured. The soft and hard tissue space implanted immediately after operation above the shoulder level was defined as initial biological width(IBW), The IBW value was the initial mucosal thickness during equicrestal implantation, or the sum of mucosal thickness and implant depth during subcrestal implantation. IBW was grouped by 3.5 mm to compare MBL of follow-up implant. Results After 1-5 years of follow-up, 127 implants with 254 sites were included. IBW≥3.5 mm group demonstrated better MBL(0.40 mm vs. 0.00 mm, P<0.05). With IBW≥3.5 mm, the marginal bone level of the implant was more likely to stabilize at or above the shoulder level(95.6% vs. 87.2%, P<0.05). Conclusion Both mucosal thickness and implant depth affect implant MBL. For Straumann bone level system, with IBW≥3.5 mm, MBL is more likely to stabilize at or above the shoulder level.

关 键 词：边缘骨水平 生物学宽度 黏膜厚度 种植深度 

分 类 号：R783.4[医药卫生—口腔医学]