Influence of Torsional Strength on Different Types of Dental Implant Platforms

Author(s)

Teixeira, Ana Beatriz V. ^[1] ; Shimano, Antonio Carlos ^[2] ; Macedo, Ana Paula ^[1] ; Valente, Mariana L. C. ^[1] ; dos Reis, Andrea C. ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Dent Mat & Prosthodont, Dent Sch Ribeirao Preto, Sao Paulo - Brazil

^[2] Univ Sao Paulo, Med Sch Ribeirao Preto, Dept Biomech Med & Rehabil Locomotor Syst, Sao Paulo - Brazil

• Document type: Journal article
• Source: IMPLANT DENTISTRY; v. 24, n. 3, p. 281-286, JUN 2015.
• Web of Science Citations: 5

Abstract

Aim: The study assessed deformation of implant components submitted to torsion tests of 80 and 120 N.cm using an optical stereomicroscope. Material and Methods: The following 3 types of Titaniumfix conical implant connections (n = 5) measuring empty set 4.0 x 11.5 mm were used: external, internal hexagon and Morse taper connections. The diagonal and lateral measurements of the hexagon implant platform were measured before and after the torsion test. Results: The torsion test using torque of 80 and 120 N.cm altered the implant dental platforms. All groups presented deformation of implant component after torque of 80 N.cm with no statistical difference among them. During torque of 120 N.cm, a difference in the Morse taper connection in relation to the internal and external hexagon connection was observed. The Morse taper connection implant, followed by the internal hex implant, underwent less deformation. Greater deformation occurred in the external hex implants. Conclusion: For all the implants, high insertion torques deformed the implant platform preventing long-term maintenance and stability of implants. (AU)

• FAPESP's process: 10/16201-7 - Influence of torsion tests in the profile of dental implants
• Grantee: Ana Beatriz Vilela Teixeira
• Support Opportunities: Scholarships in Brazil - Scientific Initiation