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ORIGINAL ARTICLE
Year : 2020  |  Volume : 17  |  Issue : 2  |  Page : 73-77

Stress analysis of short implants with different diameters in maxillary bilateral distal extension bases


Department of Prosthodontics, Faculty of Dentistry, Tanta University, Tanta, Egypt

Correspondence Address:
MSc Amr A Azab
Prosthodontic Instructor, Faculty of Dentistry, Tanta University, Taha al-Hakim/Tanta Gharbiya, Tanta 31512
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/tdj.tdj_55_19

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Purpose The aim of this study was to evaluate stress distribution around short implants with different diameters in maxillary bilateral distal extension bases. Materials and methods Strain gauge technology was used for strain analysis for two different diameters of short implant. On the seven epoxy resin models, two different short implant diameters were used as follow: Group A: on one side of the model, two implants with 4.8 mm diameter and 5 mm length were used. One implant was placed in the second premolar region and the other was placed in the second molar region. For group B: implants with 6.2 mm diameter and 5 mm length were used. For both groups, ceramometal screw retained fixed partial dentures were constructed on the transmucosal abutments. Stresses were measured at the buccal and lingual side of each implant under 200 N vertical load and 40 N oblique load. Data were collected, tabulated, and statistically analyzed. Results The present study revealed that minimum stresses were induced on vertical and oblique loads around the short implants that had wider diameters. Conclusion Within the limitation of this study, it could be concluded that, using short implants with wider diameter is a reliable method for restoring the distal extension bases.


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