<![CDATA[Background and objectives: Placement of more than two implants in the interforaminal area may createa greater implant-to-bone contact area that allows for better stress distribution and minimizes crestal boneloss. The purpose of this study was to analyze and compare the stress distribution around implants of thethree or four implant?retained mandibular overdenture.Methodology: Two finite element models comprising an edentulous mandible with three and four implantsupported mandibular overdenture with bar and clip attachment was used. A vertical load of 30 pounds wasapplied bilaterally to the first molar. Maximum and minimum von Mises stress values in the bone aroundthe implants were evaluated.Results: The highest stress value was observed in the bone around the distal implants and lowest stressvalue was concentrated in the middle implant in the molar region in three implant supported overdenture.The highest stress value was concentrated in the bone around the distal implants and lowest stress value wasconcentrated in the anterior implants in four implant supported overdenture. Stress values were more on fourimplant supported overdenture than three implant supported overdenture.Conclusion: Within the limitation of the study, three implant supported overdentures demonstrated lesserstress in comparison to the four implant supported overdentures. The stresses generated were higher in thebone around the distal implants and lowest in the middle and anterior implants.]]>
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