Open AccessEffect of Restorative Crown of Different Cuspal Inclination and Occlusal Contact on Stress Distribution in Mandibular Second Premolar with Different Ferrule Configuration and Peripheral Bone- 3D Finite Element Analysis
Author(s) -
Shahinwaz Mulani,
Surekha Dubey-Godbole,
Shoeb Yakub Shaikh,
Safia Shaikh,
Dipak Shinde
Publication year - 2022
Publication title -
journal of pharmaceutical research international
Language(s) - English
Resource type - Journals
ISSN - 2456-9119
DOI - 10.9734/jpri/2022/v34i12a35547
Subject(s) - ferrule , materials science , coronal plane , orthodontics , crown (dentistry) , premolar , finite element method , dentistry , von mises yield criterion , dentin , stress (linguistics) , medicine , composite material , computer science , structural engineering , molar , engineering , telecommunications , linguistics , philosophy , optical fiber , radiology
Background: Restoration of pulpless teeth have been difficult because of coronal loss from dental caries, diminished moisture content, endodontic therapy and fractures, resulting in prone to fracture of the tooth during function. Cast metallic band enclosing around cervical surface of a tooth is called ferrule. The role of ferrule is to assist in strengthening the endodontically treated tooth.
Purpose: In case of ferrule less tooth, the post performs as a wedge and may result in root fracture. Therefore modification in design of ferrule is required. Presence or absence of ferrule of coronal dentin influenced stress distribution pattern within tooth structure. Failure or success of a restoration may be influenced by on how the stress is dispersed to the tooth structure so it is essential to study the stress dispersal pattern within tooth and associated structure.
Materials and Methods: A three-dimensional FE method (FEM) will be carried out for study and finite element structural analysis programs will be HYPERMESH 11 and ANSYS 18.1 software. Eight 3D models will be created to simulate endodontically restored mandibular second premolar with different coronal dentin configurations. The complete crown will be modeled with a 20-degree, 33- degree, 45-degree facial cusp inclination. The oblique force of 200 N will be executed to the buccal cusp of mandibular second premolar. Analysis of results will be done by both color-coding and numerically. By using FEA software the von Mises equivalent stress (MPa) will be calculated.