アブストラクト（58巻1号：神奈川歯学）

神奈川歯学

English

Title　： Association of initial implant fixation with implant diameter, length, and drilling protocol
Subtitle　： ORIGINAL ARTICLE
Authors　： Kei NAKAMURA, Kuniaki KAWAI, Yoshimitsu OIDE, Sawako HOJO, Toshiro KODAMA
Authors（kana）　：
Organization　： Department of Implantology and Periodontology, Kanagawa Dental University
Journal　： Kanagawa Shigaku
Volume　： 58
Number　： 1
Page　： 7-17
Year/Month　： 2023 / 6
Article　： Original article
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] Initial fixation of implants is thought to be a requirement for achieving osseointegration. However, no studies have conducted a comprehensive assessment of the surgical techniques used to form the implant site or the length and diameter of the implant body. The present study therefore investigated and compared the initial fixation of implant bodies using artificial bone blocks based on the insertion torque value, removal torque value, and implant stability index and assessed the effects of implant body length and diameter on each of these values. Ten each of 6 types of implants in 2 protocol groups (φ3.6 S-6 and 11mm, φ4.2 S-6 and 11mm, φ5.4 S-6 and 11mm) were placed in artificial bone blocks. The maximum torque during insertion using a surgical electric motor (insertion torque value; ITV) and during implant removal (removal torque value; RTV) were measured. Implant stability quotient (ISQ) measurements were made using an Osstell ISQ device. Mean values were calculated for each of the above parameters. After confirming the normality in each of the 12 groups (n=10), a comparison was conducted. In addition, a multiple regression analysis using the forced entry procedure was also performed, with results indicating that the surgical procedure, diameter, and length influenced the ITV in descending order; the diameter, surgical procedure, and length influenced the RTV in descending order; and the diameter, length, and surgical procedure influenced the ISQ in descending order. These results suggest that early implant fixation is improved through the use of narrow implant site formation. In addition, this effect was augmented using long implant bodies with a large diameter.
Practice　： Dentistry
Keywords　： Dental implant, Initial implant fixation, Multiple regression analysis