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KMID : 1004520100260030273
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Journal of Dental Rehabilitation and Applied Science
2010 Volume.26 No. 3 p.273 ~ p.283
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Detorque Values of Various Compatible Dental Implant Screws
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Lee Ju-Ri
Lee Dong-Hwan
Hwang Jae-Woong
Choe Jeong-Han
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Abstract
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This study evaluated the effect of 3 different compatible screws on the detorque values in a multiple implant-supported
superstructure and single implant abutments. An implant superstructure directly connected to 4 implants was screwed to
6 experimental dental stone casts made by acrylic resin splinted impressions, using 20 Ncm. The detorque values of screws were measured twice. Three compatible abutment screws used in this study were TorqTite screw, Gold-Tite screw, and, Titanium screw. And, using single implant abutments (GoldAdapt Engaging abutments), the detorque values of 3 different screws were measured twice on 2 implants of 5 experimental casts. According to statistical analysis of detorque values using mixed model at a .05 level of significance, no statistically significant differences among 3 different compatible screws were found in a multiple implant-supported superstructure (p>0.05). But, in single implant abutments, statistically significant differences among 3 different compatible screws were found (p=0.0175). The detorque values of TorqTite(p=0.0462) and Titanium(p=0.0348) screws were significantly higher than those of Gold-Tite screw, but no statisticantly significantlydifferences were found between TorqTite and Titanium screws(p>0.05). Therefore, various compatible screws showed significant effects on the detorque values for single implant abutment, but, showed no significant effects for a multiple implant-supported superstructure.
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KEYWORD
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detorque value, fit, implant, screw, superstructure
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