Sang-Hwan Kang1, Sung-Am Cho. 1. Department of Prosthodontics, College of Dentistry, Kyung-Pook National University, Dae-Gu, South Korea. sungamcho@gamil.com
Abstract
PURPOSE: It is difficult to draw any firm conclusions regarding possible differences in implant surface performance in a clinical situation. The purpose of this study was to compare the removal torques of laser-treated (LT) surface of dental implants with TiUnite, which has porous rough anodized surface, evaluating their ability to enhance the bond strength between a titanium substrate and rabbit femur. METHOD: Two types of dental implants, LT (test, CP titanium grade 4) and commercial porous TiUnite (control, CP titanium grade 4) implants (length, 7 mm; diameter, 3.75 mm) were implanted on the right and left distal femoral metaphyses of 5 adult rabbits weighing 3.0 to 4.0 kg. After 8 weeks, removal torque was measured using a digital torque gauge. RESULTS: The mean (SD) removal torque was 32.83 (6.15) and 48.59 (8.07) N · cm for the control (anodized) and test (LT) screws, respectively. P = 0.0133 by paired t-test. CONCLUSIONS: The removal torque of the LT titanium implant embedded in rabbit femoral metaphysis for 8 weeks was stronger than that of the anodized titanium implant.
PURPOSE: It is difficult to draw any firm conclusions regarding possible differences in implant surface performance in a clinical situation. The purpose of this study was to compare the removal torques of laser-treated (LT) surface of dental implants with TiUnite, which has porous rough anodized surface, evaluating their ability to enhance the bond strength between a titanium substrate and rabbit femur. METHOD: Two types of dental implants, LT (test, CP titanium grade 4) and commercial porous TiUnite (control, CP titanium grade 4) implants (length, 7 mm; diameter, 3.75 mm) were implanted on the right and left distal femoral metaphyses of 5 adult rabbits weighing 3.0 to 4.0 kg. After 8 weeks, removal torque was measured using a digital torque gauge. RESULTS: The mean (SD) removal torque was 32.83 (6.15) and 48.59 (8.07) N · cm for the control (anodized) and test (LT) screws, respectively. P = 0.0133 by paired t-test. CONCLUSIONS: The removal torque of the LT titanium implant embedded in rabbit femoral metaphysis for 8 weeks was stronger than that of the anodized titanium implant.
Authors: Mingdeng Rong; Haibin Lu; Lei Wan; Xueyang Zhang; Xi Lin; Shaobing Li; Lei Zhou; Yingtao Lv; Yuan Su Journal: J Mater Sci Mater Med Date: 2018-03-30 Impact factor: 3.896
Authors: José Luis Calvo-Guirado; Marta Satorres; Bruno Negri; Piedad Ramirez-Fernandez; Jose Eduardo Maté-Sánchez de Val; Jose Eduardo Maté-Sánchez; Rafael Delgado-Ruiz; Gerardo Gomez-Moreno; Marcus Abboud; Georgios E Romanos Journal: Clin Oral Investig Date: 2013-10-18 Impact factor: 3.573