Morse taper performance: A finite element analysis study.
Clinics (Sao Paulo)
; 74: e852, 2019 03 25.
Article
de En
| MEDLINE
| ID: mdl-30916212
ABSTRACT
OBJECTIVES:
To evaluate and compare the magnitude and distribution of stresses generated on implants, abutments and first molar metal-ceramic crowns using finite element analysis.METHODS:
Preliminary three-dimensional models were created using the computer-aided design software SolidWorks. Stress and strain values were observed for two distinct virtual models model 1 - Morse taper and solid abutment; model 2 - Morse taper and abutment with screw. A load (250 N) was applied to a single point of the occlusal surface at 15° to the implant long axis. Von Mises stresses were recorded for both groups at four main points 1) abutment-retaining screws; 2) abutment neck; 3) cervical bone area; 4) implant neck. RESULTS ANDCONCLUSION:
Model 1 showed a higher stress value (1477.5 MPa) at the abutment-retaining screw area than the stresses found in model 2 (1091.1 MPa for the same area). The cervical bone strain values did not exceed 105 µm for either model.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Implants dentaires
/
Conception de prothèse dentaire
/
Analyse des éléments finis
/
Analyse du stress dentaire
/
Conception d'implant dentaire et de pilier
Limites:
Humans
Langue:
En
Journal:
Clinics (Sao Paulo)
Sujet du journal:
MEDICINA
Année:
2019
Type de document:
Article
Pays d'affiliation:
Brésil