EFFECT OF CROWN-IMPLANT (C/I) RATIO OF SHORT IMPLANTS ON PERI-IMPLANT STRESS: A FINITE ELEMENT ANALYSIS

Abstract

Objectives. Purpose  of this study was to evaluate the distribution of peri-implant stress with different С/I ratio( 1.5:1, 1.75:1, 2:1) according to the von Mises criterion.

Materials and methods: Stress analysis was performed using Invesalius 3.0, Rhinoceros 3D 4.0 software. Three 3D models of the mandibular segment of the bone block were developed:

• model A, a short implant C/I – 1,5:1;
• model B, a short implant C/I -1.75:1;
• model C, a short implant C/I -2:1.

Results: The results of the current study, indicate the increase in crown height showed little difference in load at the crown/implant interface with crown/implant ratios of 1.5:1, 1.75:1 and 2:1.

Conclusions: Study showed that short implantats for prosthetic rehabilitation can be considered favorable and well substantiated, C/I ratio is not so important for the effective functioning of short implants.

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