Influence of diameter in the stress distribution of extra-short dental implants under axial and oblique load

Aim: This study evaluated the influence of a wide diameter on extra-short dental implant stress distribution as retainer for single implant-supported crowns in atrophic mandible posterior region under axial and oblique load. Methods: Four 3D digital casts an mandible, with implant-retained crown 3:1 crown-to-implant ratio, were created finite element analysis. The used was either 4 mm (regular) or 6 (wide), both 5 length. A 200 N 30º load applied to mandibular right first molar occlusal surface. equivalent von Mises recorded abutment implant, minimum principal stress, maximum shear cortical cancellous bone. Results: Oblique increased all components when compared Wide implants showed decrease around 40% directions at increase least 3.6% abutment. exhibited better results bone angulations. However, bone, 66% greater than regular implants, more 100% greater. Conclusion: Extra-short result biomechanical behavior but implications potential risk overloading loss over time, mainly load, should be investigated.