Retightening of Internal Hexagonal and Conical Dental Abutment Connections: A FEA Analysis.


Submitted: 20 June 2023
Accepted: 5 January 2024
Published: 5 March 2024
Abstract Views: 202
PDF: 178
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Authors

  • S. Srivastava Mechanical Engineering Department , Rajkiya Engineering College Azamgarh, Uttar Pradesh , India, India. https://orcid.org/0000-0002-5868-1561
  • V. Kumar Mechanical Engineering Department , Rajkiya Engineering College Azamgarh, Uttar Pradesh , India.
  • P. Yadav Mechanical Engineering Department , Rajkiya Engineering College Azamgarh, Uttar Pradesh , India.
  • B. Singh Mechanical Engineering Department , Rajkiya Engineering College Azamgarh, Uttar Pradesh, India.
  • S.K. Singh Mechanical Engineering Department , Rajkiya Engineering College Azamgarh, Uttar Pradesh, India.
  • S.K. Sarangi Associate Professor, Mechanical Engineering Department National Institute of Technology, Patna, India.

Understanding the impact of tightening and re-tightening on the abutment screw loosening of a dental implant This study used finite element methods to determine how various materials and abutment connections react to the retightening effect of the abutment screw when saliva or blood enters the space between the abutment and the dental implant. Internal hex and conical connection preload values are found to increase while the fluid at the interface of the abutment and dental implant decreases. Retightening: compared to the tightening of the abutment screw, the conical abutment connection preload value decreases by 3%. The tightening and retightening processes proved to have depended on the type of implant-abutment connection. Removal torque for abutment screws is observed at 0.27, 0.28, 0.29, 0.30, 0.31, and 0.32, and it is found that decreasing the abutment screw pitch can also be an effective method to increase resistance to screw loosening. The internal hex is proven to be the best abutment design for increasing the preload value and is recommended for clinical applications.

 


Srivastava, S., Kumar, V., Yadav, P., Singh, B., Singh, S., & Sarangi, S. (2024). Retightening of Internal Hexagonal and Conical Dental Abutment Connections: A FEA Analysis. Journal of Osseointegration, 16(1), 23–30. https://doi.org/10.23805/JO.2024.590

Downloads

Download data is not yet available.

Citations