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VOL. 5, ISSUE 3 (2023)

Mechanical evaluation of complete arch mandibular implant supported fixed prosthesis abutment screws following repetitive loading: An In vitro investigation

Authors

Snehal Chintale, Sujata Sanket Chaudhari, Priya Muke, Shweta Singh, Ankita Khushiramani

Abstract

Introduction: The goal of modern dentistry is to restore the normal contour, function, comfort esthetics, speech, and health regardless of the atrophy, disease, or injury of the stomatognathic system.

Methodology: The implants were arranged in an arch, simulating the clinical condition of restoring an edentulous mandible with uniform 10 mm interimplant spacing and an anterior abutment distance (fulcrum line) of 9 mm. The implant locations were reproduced by laser scanning the jaw model. The framework was designed from the position of the placed implants and with the addition of bilateral 15 mm long distal extension cantilevers. For the investigation, four identical frames were created and randomly chosen from each group, alternating between loaded and unloaded ones. Five 4.310 mm implants were individually screwed to a framework to assure passive fit of the framework to the implants in order to create a single specimen of a test group. Results: The ANOVA showed that there was a significant (P=.002) relationship among the loading and screw location. The 2 levels of loading were contrasted independently at each of the 5 screw positions with a Bonferroni-adjusted significance level of.05/5=.01 in order to analyse simple impacts. Conclusion- No significant difference was found in torque/ detorque values between loaded and non-loaded conditions, except the centre screw location, where the loaded screws demonstrated greater potential loosening than their non-loaded counterpart.

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Pages:1-5

How to cite this article:

Snehal Chintale, Sujata Sanket Chaudhari, Priya Muke, Shweta Singh, Ankita Khushiramani "Mechanical evaluation of complete arch mandibular implant supported fixed prosthesis abutment screws following repetitive loading: An <i>In vitro</i> investigation". International Journal of Dental Research, Vol 5, Issue 3, 2023, Pages 1-5

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