Rismanchian Mansour, Movahedian Bijan, Khalighinejad Navid, Badrian Hamid, Mohammad Razavi Sayed, Nekouie Afsaneh
Dental Implant Research Center and Prosthodontics Department, Dental School, Isfahan University of Medical Sciences, Hezarjerib Street, Isfahan 8174673461, Iran.
ISRN Dent. 2012;2012:328945. doi: 10.5402/2012/328945. Epub 2012 Jul 18.
Introduction. In order to minimize the required time to regain esthetic and function, immediately loaded implants were suggested. The aim of this study was to comparatively evaluate the Nisastan and XIve implants using biomechanical and histomorphometric tests. Materials and Methods. In this experimental study, 6 Nisastan one-piece immediately loaded screw type implant (OPILS) and 6 Xive implants with 3.4 mm diameter and 11 mm long were used. The implants were immediately loaded with temporary coating. After three months, the torque required to break bone-implant contact was measured and was recorded. All implants were extracted with surrounding bone and histologically were evaluated. The data were inputted into the SPSS 11.5 to run student T-test statistical analyses (α = 0.05). Results. The success rates of both types of implants was 100%, and none of them failed due to mobility or bone loss. The mean removal torque value (RTV) was 142.08 and 40 N/Cm for Xive and Nisastan implants, respectively, and their RTVs showed a significant difference between two mentioned implants (P = 0.004). None of the histomorphometric values showed significant differences between the two implants (P > 0.05). Discussion. both systems have the capability to induce osseointegration under immediate loads but that Xive implants showed higher capability for bone contact.
引言。为了将恢复美观和功能所需的时间减至最短，有人提出了即刻负重种植体。本研究的目的是通过生物力学和组织形态计量学测试对Nisastan种植体和Xive种植体进行比较评估。材料与方法。在本实验研究中，使用了6枚Nisastan一体式即刻负重螺旋型种植体（OPILS）和6枚直径3.4毫米、长度11毫米的Xive种植体。种植体即刻进行临时涂层负重。三个月后，测量并记录破坏骨-种植体接触所需的扭矩。所有种植体均与周围骨组织一起取出并进行组织学评估。将数据输入SPSS 11.5进行学生t检验统计分析（α = 0.05）。结果。两种种植体的成功率均为100%，且均未因松动或骨吸收而失败。Xive种植体和Nisastan种植体的平均去除扭矩值（RTV）分别为142.08 N/Cm和40 N/Cm，两种种植体的RTV显示出显著差异（P = 0.004）。两种种植体的组织形态计量学值均无显著差异（P > 0.05）。讨论。两种系统都有能力在即刻负重下诱导骨结合，但Xive种植体显示出更高的骨接触能力。
