.gif)
*Lt Col Sonali
Sharma MDS, PhD, ##Lt Gen SM Londhe SM, MDS, #Dr. Mithra
N Hegde MDS, PhD, MAMS, $Dr. Vandana Sadananda MDS
*Professor
Conservative Dentistry & Endodontics, Army Dental Centre, Research &
Referral, Delhi
##Director General
Dental Services, Room number 11, L Block, Adjutant General’s branch, IHQ of MOD
(Army) New Delhi: 110001
#Professor & Head
of Department, Conservative Dentistry & Endodontics, A.B. Shetty Memorial
Institute of Dental Sciences, drhegdedentist@gmail.com
$Lecturer,
Conservative Dentistry & Endodontics, A.B. Shetty Memorial Institute of Dental
Sciences
Corresponding author: Lt Col
Sonali Sharma, Professor Conservative Dentistry & Endodontics, Army Dental
Centre, Research & Referral, Delhi, Email: sonaliendo@gmail.com
Citation: Sonali
Sharma (2020) Biomechanical Performance of an Immature Pulpless Maxillary
Central Incisor Managed with Different Modalities: A Finite Element Analysis.
Global Dentistry: Case Reports, 1(1);1-8
Copyright: © 2020, Sonali
Sharma, et al., This is an
open-access article distributed under the terms of the Creative Commons
Attribution 4.0 International License, which permits unrestricted use,
distribution and reproduction in any medium, provided the original author and
source are credited.
ABSTRACT
Aim: To
compare and contrast by three-dimensionalFEAthe biomechanical performance of an
immature endodontically treated central incisor reinforced by different
replacement monoblocks under three different loading conditions.
Material and Method: Four models of a pulpless immature central
incisor with an underdeveloped root and supporting structures was designed and
built. The root length was 2 mm less than a mature central incisor. The
radicular space was rehabilitated as follows: Model I: Revascularization, Model
II: Biomimetic Mineralization, Model III: Biodentine, Model IV: MTA. Three
distinct loading scenarios were independentlyexperimentedi.eto simulate the
masticatory forces an inclined load of 70 N was applied at 45 degrees; to
replicate bruxism, on the incisal edge, a vertical load measuring 100 N was
tested; and to simulate a direct impact trauma, a 100 N of the horizontal load
was executed on the labial surface of the central incisor.The finite element
analysis was carried out with the ANSYS software.
Results: Model
II exhibited the lowest concentration of Von Mises stresses as the modulous of
elasticity is same as that of dentin, followed by Model I, Model III, Model IV.
When the models were loaded to simulate bruxism and horizontal trauma the least
amount of stress concentration was found in Model I, Model II, Model III, Model
IV in descending order.
Conclusion: The
closer the modulus of elasticity of the replacement mono block was to dentin,
the lower the stresses generated. All replacement materials brought about some
amount of reinforcement to a weakened periapex.
KEYWORDS: Biodentine, Biomimetic mineralization, Finite element analysis,
MTA, Modulous of elasticity, Revascularization, Von Mises stresses
.png)
.jpg)