Table of Contents
ISRN Dentistry
Volume 2012, Article ID 328945, 6 pages
http://dx.doi.org/10.5402/2012/328945
Research Article

Comparative Evaluation of Two Types of Immediately Loaded Implants Using Biomechanical and Histomorphometric Tests: An Animal Case Study

1Dental Implant Research Center and Prosthodontics Department, Dental School, Isfahan University of Medical Sciences, Hezarjerib Street, Isfahan 8174673461, Iran
2Torabinejad Dental Research Center and Oral and Maxillofacial Surgery Department, Dental School, Isfahan University of Medical Sciences, Hezarjerib Street, Isfahan 8174673461, Iran
3Dental Implant Research Center, Dental School, Isfahan University of Medical Sciences, Hezarjerib Street, Isfahan 8174673461, Iran
4Torabinejad Dental Research Center and Oral Pathology, Dental School, Isfahan University of Medical Sciences, Hezarjerib Street, Isfahan 8174673461, Iran
5Dentistry Department, Dental School, Isfahan University of Medical Sciences, Hezarjerib Street, Isfahan 8174673461, Iran

Received 13 April 2012; Accepted 30 May 2012

Academic Editors: I. Lewinstein and Z.-J. Liu

Copyright © 2012 Mansour Rismanchian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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 . 0 5 ). 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 . 0 0 4 ). None of the histomorphometric values showed significant differences between the two implants ( 𝑃 > 0 . 0 5 ). Discussion. both systems have the capability to induce osseointegration under immediate loads but that Xive implants showed higher capability for bone contact.