Effects of vertical interarch space and abutment height on stress distributions: a 3D finite element analysis.
This three dimensional Finite Element Analysis study investigated stress distribution and intensity in implants restored with cemented or screwed crown. Two parameters varied: interarch space and abutment height. Highest stresses occurred at the cervical area in all models. Stresses increased mainly with vertical interarch space highness, and secondarily with abutments shortness. From a mechanical point of view, bone and prosthetics components supporting cemented crowns were not as solicited as with screwed crowns.
Naveau
Adrien
A
Prosthodontics Department, Faculty of Dental Surgery, Montrouge, France. adriennaveau@hotmail.com
Renault
Patrick
P
Pierrisnard
Laurent
L
D000539:Alveolar Process / Q000503:physiopathology; D001641:Bicuspid; D002484:Cementation; D019245:Compressive Strength; D003442:Crowns; D000044:Dental Abutments; D019250:Dental Implants, Single-Tooth; D017267:Dental Prosthesis Design; D017268:Dental Prosthesis Retention / Q000295:instrumentation / Q000379:methods; D019094:Dental Prosthesis, Implant-Supported; D003799:Dental Stress Analysis / Q000379:methods*; D055119:Elastic Modulus; D020342:Finite Element Analysis; D006801:Humans; D013718:Tensile Strength; D014716:Vertical Dimension