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Evaluation of preload maintenance of retention screws of abutments and cylinders of implants with internal connection.

Grant number: 09/14666-5
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2009
Effective date (End): November 30, 2010
Field of knowledge:Health Sciences - Dentistry
Principal researcher:Wirley Goncalves Assuncao
Grantee:Mayara Barbosa Ferreira
Home Institution: Faculdade de Odontologia (FOA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil

Abstract

The aim of this study is to evalute the preload maintenance of retention screws of conical abutments and cylinders of internal hexahon joints submitted to retightening and measurement of detorque value. Two groups (n=12) will be characterized according to the different components attached to the external hexagon implant: Group I - conical abutment attached to the implant through titanium retention screw, Group II - cylinder attached to the conical abutment through titanium retention screw. After three minutes, detorque values will be measured by an analogic torque gauge. This measurement will be carried out 10 times for each retention screw of groups I and II, totalizing 120 detorque measurements in each group. Data will be tabled and submitted to statistical analysis.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FERREIRA, MAYARA BARBOSA; DELBEN, JULIANA APARECIDA; RICARDO BARAO, VALENTIM ADELINO; FAVERANI, LEONARDO PEREZ; DOS SANTOS, PAULO HENRIQUE; ASSUNCAO, WIRLEY GONCALVES. Evaluation of Torque Maintenance of Abutment and Cylinder Screws With Morse Taper Implants. JOURNAL OF CRANIOFACIAL SURGERY, v. 23, n. 6, p. E631-E634, NOV 2012. Web of Science Citations: 9.

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