Nobel Replace^(TM) Tapered种植体早期稳定性相关影响因素的研究

Influencing factors of the early stability of Nobel Replace^(TM) Tapered implants

目的:初步探讨影响Nobel Replace^(TM)Tapered种植体早期稳定性的相关因素。方法:选择单个牙缺失并要求种植修复的患者106例,采用CBCT分别测量其种植区的颌骨密度(HU值)后,各植入Nobel Replace^(TM)Tapered种植体1枚,共106枚。采用Ostell ISQ种植体稳定性测量仪分别于术后即刻、第12周测量种植体的稳定性(ISQ值);采用CBCT测量各种植体周围牙槽骨厚度;采用X线影像软件测量各种植体边缘的骨吸收水平;并对所得结果进行统计分析。结果:所有种植体在植入时均取得良好的初始稳定性,术后第12周时其稳定性均显著增高(P<0.05)。统计分析结果显示,种植区部位、颌骨密度及其直径对ISQ值均有显著影响(P<0.05);种植体周围牙槽骨宽度、边缘骨吸收水平及长度对其ISQ值均无显著影响(P>0.05)。结论:种植体早期稳定性可能受到种植区部位、颌骨密度以及种植体直径的影响。

AIM： To study the influencing factors on early stability of Nobel ReplaceTM Tapered implants. METHODS： 106 patients with single missing tooth requiring implant treatment participated in this study, Nobel Re- placeTMTapered implants were delivered to the patients. Preoperative bone density of the implant location was measured by CBCT. Implant stability quotient （ISQ） was tested by OsstellTM Mentor on the day of surgery and 12 w postopera- tively. The thickness of the bone around the implant was measured by CBCT. The crestal bone resorption was detected by X - ray images. All data were analyzed using SPSS 19.0 software package. RESULTS ： All the 106 implants a- chieved good primary stability at surgery. ISQ was statistically significant higher 12 w after implantation （P 〈 0.05 ）. Statistically significant difference of ISQ was found among implant insertion sites,bone density（HU scale） and implant widths （ P 〈 0.05 ） respectively. There was no significant difference among the thickness of the bone around the implant, crestal bone resorption and implant length（P 〉 0.05 ）respectively. CONCLUSION： Implant stability seems to be af- fected by implant insertion site, bone density and implant width.