Objectives: The aim of this study was to evaluate the stress distribution on different thicknesses of mineral trioxide aggregate (MTA) placed on various widths of pulp perforations during the condensation of the composite resin material.
Materials And Methods: The mandibular molar tooth was modeled by COSMOSWorks program (SolidWorks, Waltham, MA). Three finite elemental analysis models representing 3 different dimensions of pulp perforations, 1, 2, and 3 mm in diameter, were created. The perforation area was assumed as filled with MTA with different thicknesses, 1, 2, and 3 mm for each pulp perforation width, creating a total of 9 different models. Then, a composite resin material was layered on MTA for each model. A 66.7 N load was applied and an engineering simulation program (ANSYS, Canonsburg, US) was used for the analysis. Results were presented considering von Mises stress criteria.
Results: As MTA thickness increased, the stress values recorded within the area between pulp and MTA decreased. Strain was decreased when the thickness of MTA increased.
Conclusions: Stresses at MTA-pulp interface and strain on MTA decreased with the increase in MTA thickness.
Clinical Relevance: In clinical practice, when MTA is required for pulp capping, using a thick layer of the material seems to be a better option in order to reduce the stress under forces of hand condensation of overlying restorative materials.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00784-020-03218-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparative study of pulpal response following direct pulp capping using synthesized fluorapatite and hydroxyapatite nanoparticles.
BMC Oral Health
January 2025
Basic Dental Sciences Department, Faculty of Dentistry, Zarqa University, PO Box 2000, Zarqa, 13110, Jordan.
Objective: This study aimed to investigate and compare the histological response of rabbit dental pulp after direct pulp capping with 3 different materials: mineral trioxide aggregate (MTA), nanoparticles of fluorapatite (Nano-FA), and nanoparticles of hydroxyapatite (Nano-HA) after 4 and 6-week time intervals.
Material And Methods: A total of 72 upper and lower incisor teeth from 18 rabbits were randomly categorized into 3 groups)24 incisors from six rabbits each. MTA Group: teeth were capped with MTA.
Histological and radiographic assessment of the regenerative potential of sodium hexametaphosphate (SHMP) as a novel direct pulp capping material in an animal model.
BMC Oral Health
January 2025
Paediatric and Community Dentistry, Faculty of Dentistry, Minia University, Ard Shalaby, El Minia, 61519, Egypt.
Background: This study aimed to assess the histological and radiographic effects of sodium hexametaphosphate (SHMP) as a direct pulp capping (DPC) agent in immature permanent dog premolars.
Methods: A split-mouth design was employed with three healthy 4-month-old Mongrel dogs, each having 36 premolars. The premolars were randomly assigned to either SHMP or MTA.
Basic Science and Pathogenesis.
Alzheimers Dement
December 2024
Seoul National University, School of Medicine, Seoul, Korea, Republic of (South).
Background: We herein introduce a case that was pathologically confirmed as an advanced stage of LATE.
Method: (case presentation) An 81-year-old woman visited a memory clinic complaining of memory impairment in the past few years. She had no psychiatric history and a history of significant hyperlipidemia and hypertension.
Clinical Manifestations.
Alzheimers Dement
December 2024
Kaohsiung Medical University, Kaoshiung, Taiwan.
Background: Neuropsychiatric symptoms (NPSs) significantly impact outcomes for individuals with dementia, with multiple factors contributing, including neurobiology. This study aims to enhance our understanding of the neurobiology of NPSs by examining the links between vascular burdens, dementia biomarkers, and NPSs.
Method: Patients with dementia receiving outpatient services were included.
Evaluatıon of stress dıstrıbutıon by applıed dıfferent forces on ımmature maxıllary central teeth wıth dıfferent treatment optıons: a laboratory fınıte element stress analysıs.
BMC Oral Health
January 2025
Department of Endodontics, Faculty of Dentistry, Ordu University, Ordu, 52200, Turkey.
Background: Immature maxillary central teeth can be managed by using several treatment options. The aim of this finite element stress analysis study was to evaluate the effect of different treatment procedures on the stresses on immature maxillary incisor teeth models that generated on cone beam computed tomography, by trauma and bite forces.
Methods: A total of 11 different models consisting of revascularization treatment using MTA and biodentine and the state of the root apex formed with cement after treatment, apexification, modified apexification, traditional root canal treatment and two different control groups have been created.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!