IN VITRO COMPARATIVE STUDY BETWEEN ISQ AND PERIOTEST? VALUES ON THE IMPLANT STABILITY MEASUREMENTS ACCORDING TO THE INCREASED EFFECTIVE IMPLANT LENGTH.

Author: Chan Jin PARK
Publication Type:Comparative Study ; In Vitro ; Original Article
MeSH: Axis, Cervical Vertebra; Scapula; Torque
From:The Journal of Korean Academy of Prosthodontics 2001;39(6):625-632
CountryRepublic of Korea
Language:Korean
Abstract: Statement of Problem. Objective and quantitative measurement of implant stability is very important from implant installation to long-lasting maintenance period thereafter. Purpose of study. This study was to evaluate and compare two ISQ and PTVs on the implant stability measurements according to the increased effective implant length. Materials and Methods. Twenty self-tapping fixtures were installed in the bovine scapula and in 10 of those for group I, ISQ and PTVs were obtained in the vertical/horizontal directions according to the increased effective implant length using OsstellTM and Periotest? After stability measurement, removal torques were measured between the after installation and after thread exposure group. Results. ISQ and PTVs showed decreased and increased values according to the increased abutment length. Apart from PTVs, ISQ values were shown higher in horizontal direction to the long axis of bone in both the after installation and the after thread exposure groups. Removal torque values were shown higher in after installation group. Conclusion. From the results of this study, implant stability measurement using resonance frequency analysis was more sensitive and discriminative than PTVs measurement.