Effect of Screw Channel Angulation on Reverse Torque Values of Dental Implant Abutment Screws

2019 ◽  
Vol 28 (9) ◽  
pp. 969-972
Author(s):  
Eric Hu ◽  
Anton Petrich ◽  
Glen Imamura ◽  
Christopher Hamlin
Keyword(s):  
Dental Implant ◽  
Screw Channel ◽  
Reverse Torque ◽  
Implant Abutment ◽  
Torque Values ◽  
Dental Implant Abutment

scholarly journals Internal and Marginal Fit and Fracture Strength of Narrow Diameter Dental Implant-Abutment Assembly

2020 ◽  
Vol 31 (2) ◽  
pp. 127-134
Author(s):  
George Hebert Ruschel ◽  
Ataís Bacchi ◽  
Izabela Cristina Maurício Moris ◽  
Stephanie Francoi Poole ◽  
Ricardo Faria Ribeiro ◽  
...  
Keyword(s):  
Dental Implant ◽  
Fracture Strength ◽  
Test Machine ◽  
Marginal Fit ◽  
Thermomechanical Cycling ◽  
Implant Abutments ◽  
Implant Abutment ◽  
Compressive Strength Test ◽  
Type V ◽  
Dental Implant Abutment

Abstract The aim of this study was to assess the internal and vertical marginal fit of metallic copings to abutments and the fracture strength of different narrow diameter dental implant/abutments, either submitted to thermomechanical cycling or not. Sixty-four implant/abutments (n=16) were divided into 4 groups according to diameter and abutment type: G3.5-UAC (morse taper implant Ø3.5mm + universal abutment with beveled chamfer finish); G2.9-UAS (morse taper implant Ø2.9mm + universal abutment with shoulder finish); G2.8-AA (morse taper friction implant Ø2.8mm + anatomical abutment) and G2.5-HP (one-piece implant Ø2.5mm with indexed hexagonal platform). Each group was divided into two subgroups (n=8): submitted and not submitted to thermomechanical cycling (TMC). To assess internal and vertical marginal fit of metallic copings, the assemblies were scanned using microtomography (micro-CT) (n=5). The samples were subjected to the compressive strength test on a universal test machine. Group G3.5-UAC showed the highest marginal misfit regardless of TMC (p<0.05). All other groups were similar after TMC. Group G2.8-AA showed the lowest internal misfit both with and without TMC (p<0.05). Group G2.8-AA showed the highest fracture strength, similar only to G2.5-HP without TMC and G3.5-UAC with TMC. The type of abutment affects the internal and marginal fit of metallic copings and the anatomical abutment led to the best internal and marginal coping fit. The narrow diameter dental implant/abutments differ in terms of fracture strength, the strongest assembly was that composed by implant of type V grade titanium without internal threads (friction implant).

Assessment of human gingival fibroblast interaction with dental implant abutment materials

2015 ◽  
Vol 26 (4) ◽  
Author(s):  
Vygandas Rutkunas ◽  
Virginija Bukelskiene ◽  
Vaidotas Sabaliauskas ◽  
Evaldas Balciunas ◽  
Mangirdas Malinauskas ◽  
...  
Keyword(s):  
Dental Implant ◽  
Human Gingival Fibroblast ◽  
Gingival Fibroblast ◽  
Implant Abutment ◽  
Dental Implant Abutment

Dynamic fatigue properties of the dental implant–abutment interface: Joint opening in wide-diameter versus standard-diameter hex-type implants

2001 ◽  
Vol 85 (6) ◽  
pp. 599-607 ◽  
Author(s):  
Scott A. Hoyer ◽  
Clark M. Stanford ◽  
Supanee Buranadham ◽  
Todd Fridrich ◽  
Jacob Wagner ◽  
...  
Keyword(s):  
Dental Implant ◽  
Fatigue Properties ◽  
Joint Opening ◽  
Wide Diameter ◽  
Implant Abutment ◽  
Dental Implant Abutment ◽  
Dynamic Fatigue

scholarly journals Development of a new quantitative gas permeability method for dental implant-abutment connection tightness assessment

2011 ◽  
Vol 10 (1) ◽  
pp. 28 ◽  
Author(s):  
Jacques-Henri Torres ◽  
Michael Mechali ◽  
Olivier Romieu ◽  
Paul Tramini ◽  
Sylvie Callas ◽  
...  
Keyword(s):  
Dental Implant ◽  
Gas Permeability ◽  
Implant Abutment ◽  
Dental Implant Abutment ◽  
Permeability Method
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