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Effect of the cutting flute of the orthodontic miniscrew on insertion and removal torque

Park CS, Lim BG, Won EK, Hwang JY, Hwang B, Ji JH, Jeon WY, Lee MH, Bae TS

The purpose of this study was to evaluate the structural characteristics of the thread length of orthodontic mini-screws and the effects of insertion and removal torques according to the formation...
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Joint stability of internal conical connection abutments with or without hexagon indexes: an in vitro study

Lee SW, Cha MS, Lee JH, Cho LR, Park CJ

Purpose: The purpose of this study was to compare the axial displacement of the hexagonal and conical abutment in internal conical connection implant after screw tightening and cyclic loading. Materials...
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Effects of anaerobic sealing agents on preload maintenance ofscrew-retained implant prosthesis with surface of screws

Ryu SB, Heo SJ, Koak JY, Kim SK

Purpose: The purpose of this study was to evaluate the preload maintenance of the retaining screw when using anaerobic sealing agents in implant fixture and abutment components. Specifically, the study examines...
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Evaluation of bioactivity and osseointegration for ti-6al-4v alloy implant modified by anodic oxidation and cyclic precalcification treatments

Jang YS, Kang JY, Lee KG, Lim CH, Lee MH, Bae TS

The aim of this study was to examine the bioactivity and osseointegration of Ti-6Al-4V alloy implant which was modified by an anodic oxidation and a cyclic precalcification treatments. After blasting...
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Comparison of CAD/CAM abutment and prefabricated abutment in Morse taper internal type implant after cyclic loading: Axial displacement, removal torque, and tensile removal force

Yi Y, Heo SJ, Koak JY, Kim SK

PURPOSE: The purpose of this study was to compare computer-aided design/computer-aided manufacturing (CAD/CAM) abutment and prefabricated abutment in Morse taper internal connection type implants after cyclic loading. MATERIALS AND METHODS: The...
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The effects of saline soaking on the removal torque of titanium implants in rabbit tibia after 10 days

Park JH, Cho SA

PURPOSE: The aim of this study was to confirm if Laser-treated implants were soaked in 0.9% NaCl solution for 2 weeks could increase the surface hydrophilicity, and the Remoal Torque...
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The effect of heat to remove cement on implant titanium abutment and screw

Yi HG, Gil KS, Lee JJ, Ahn SG, Seo JM

PURPOSE: The purpose of this study was to investigate the effect of heat applied to disintegrate cement on the removal torque value and fracture strength of titanium abutment and abutment...
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Comparison of removal torques between laser-etched and modified sandblasted acid-etched Ti implant surfaces in rabbit tibias

Park KS, Al Awamleh AGI, Cho SA

PURPOSE: The purpose of this study was to analyze the effects of two different implant surface treatments on initial bone connection by comparing the Removal Torque Values (RTQs) at 7...
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Screw loosening and changes in removal torque relative to abutment screw length in a dental implant with external abutment connection after oblique cyclic loading

Lee JH, Cha HS

PURPOSE: This study investigated the effects of abutment screw lengths on screw loosening and removal torque in external connection implants after oblique cyclic loading. MATERIALS AND METHODS: External connection implants were...
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The effect of a titanium socket with a zirconia abutment on screw loosening after thermocycling in an internally connected implant: a preliminary study

Kyung KY, Cha HS, Lee JH

PURPOSE: The aim of this study was to investigate the effects of a titanium component for the zirconia abutment in the internal connection implant system on screw loosening under thermocycling...
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Removal torque of a two-piece zirconia abutment with a novel titanium component in an internal connection implant system after dynamic cyclic loading

Lee JH

PURPOSE: The aim of this study was to evaluate screw removal torque of the two-piece zirconia abutment with the novel titanium component compared to the conventional onepiece titanium abutment in...
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Comparison of removal torques of SLActive® implant and blasted, laser-treated titanium implant in rabbit tibia bone healed with concentrated growth factor application

Park SH, Park KS, Cho SA

PURPOSE: The purpose of this study was to compare the removal torques of a chemically modified SLActive implant and a blasted, laser-treated (BLT) implant, which were soaked in saline for...
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Effect of abutment screw length and cyclic loading on removal torque in external and internal hex implants

Mohammed H, Lee JH, Bae JM, Cho HW

PURPOSE: The purpose of this study was to evaluate the effects of abutment screw length and cyclic loading on the removal torque (RTV) in external hex (EH) and internal hex...
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Evaluation of stability of interface between CCM (Co-Cr-Mo) UCLA abutment and external hex implant

Yoon KJ, Park YB, Choi H, Cho Y, Lee JH, Lee KW

PURPOSE: The purpose of this study is to evaluate the stability of interface between Co-Cr-Mo (CCM) UCLA abutment and external hex implant. MATERIALS AND METHODS: Sixteen external hex implant fixtures were...
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An investigation of reosseointegration according to time course after mechanical loosening of the osseointegrated implant fixtures

Ye SH, Cho JH, Lee CH

PURPOSE: The purpose of this study was to investigate the reosseointegration periods when the rough surface implants, which had complete bone-implant ankylosis, suddenly losed the osseointegration. MATERIALS AND METHODS: The implants...
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Comparison of removal torques between laser-treated and SLA-treated implant surfaces in rabbit tibiae

Kang NS, Li LJ, Cho SA

PURPOSE: The purpose of this study was to compare removal torques and surface topography between laser treated and sandblasted, large-grit, acid-etched (SLA) treated implants. MATERIALS AND METHODS: Laser-treated implants (experimental group)...
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Influence of the implant-abutment connection design and diameter on the screw joint stability

Shin HM, Huh JB, Yun MJ, Jeon YC, Chang BM, Jeong CM

PURPOSE: This study was conducted to evaluate the influence of the implant-abutment connection design and diameter on the screw joint stability. MATERIALS AND METHODS: Regular and wide-diameter implant systems with three...
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The influence of systemically administered oxytocin on the implant-bone interface area: an experimental study in the rabbit

Cho SA, Park SH, Cho JH

PURPOSE: The purpose of this study was to assess the effect of systemically administered oxytocin (OT) on the implant-bone interface by using histomorphometric analysis and the removal torque test. MATERIALS AND...
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Combined effects of rhBMP-2 and rhVEGF coated onto implants on osseointegration: pilot study

Huh JB, Yun MJ, Jeong CM, Shin SW, Jeon YC

PURPOSE: The present study is aimed to evaluate the combined effect of recombinant human bone morphogenetic protein 2 (rhBMP-2) and recombinant human vascular endothelial growth factor (rhVEGF) coated onto anodized...
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Influence of the implant abutment types and the dynamic loading on initial screw loosening

Kim ES, Shin SY

PURPOSE: This study examined the effects of the abutment types and dynamic loading on the stability of implant prostheses with three types of implant abutments prepared using different fabrication methods...
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