Increase in diameter of dental implants decreases bone stress: Study
An increase in diameter of dental implants decreases the bone stress, suggests a study published in the Dentistry Journal.
The success of an implant-supported prosthesis is highly dependent on implant diameter and bone quality.
A study was conducted by a group of researchers from Spain to assess these two variables under axial or 30° angulated loading.
The study was conducted using finite element model simulations of dental implants with an unchanging length of 6.5 mm and varying diameters of Ø3.3; Ø3.5; Ø3.75; Ø4, Ø4.25 and Ø4.75 mm. The implants were placed in an axial position and a 2 mm high straight transepithelial (intermediate abutment) was used to perform a single tooth restoration. Four bone quality scenarios, Type IV, III, II or 0-I bone, were simulated from a simplified model of the mandible. A 200N load was applied both axially and at a 30° angle to the occlusal surface of the prosthesis, which was 11 mm above the implant platform, and the equivalent Von Mises stress in the bone was analyzed.
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