We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Does the transversal screw design increase the risk of mechanical complications in dental implants? A finite elements analysis.
- Authors
Sánchez Lasheras, Fernando; Gracia Rodríguez, Javier; Mauvezín‐Quevedo, Mario; Martín‐Fernández, Elena; Bobes‐Bascarán, Javier; Llanos‐Lanchares, Hector; Álvarez‐Arenal, Ángel
- Abstract
The transversal screw was introduced in order to overcome some disadvantages of the transocclusal screw. However, its mechanical risk has not been studied sufficiently. The main purpose of this research was to assess and compare stress distribution in the screws and abutment of a single‐crown implant with transversal and transocclusal screw models. Two 3D models were assembled to analyse a single‐implant–supported prosthesis with transversal and transocclusal screws embedded in the jawbone. The crown was subjected to a static load of value 300 N with different levels of inclination. The transversal screw model, with an axial load of 15°, was the one with lowest stress values in all its components. However, the stress was greater with more inclined loads when compared with the transocclusal model. The prosthetic transversal screw showed much less stress than the rest of the components for any load inclination. The transversal screw design is the option with the lowest risk of mechanical complications, both in the prosthetic screw and in the abutment screw, when applying forces of lower inclination. The more oblique forces favoured a better biomechanical environment in the abutment and its screw in the transocclusal screw model.
- Subjects
SCREWS; FINITE element method; DENTAL implants; AXIAL loads; DISEASE complications; STRESS concentration
- Publication
International Journal for Numerical Methods in Biomedical Engineering, 2019, Vol 35, Issue 6, pN.PAG
- ISSN
2040-7939
- Publication type
Article
- DOI
10.1002/cnm.3205