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CC BY-NC-ND 4.0 · Eur J Dent 2021; 15(01): 077-083
DOI: 10.1055/s-0040-1715915
Original Article

Pediatric Stainless-Steel Crown Cementation Finite Element Study

Ahmed S. Waly
1   Department of Pediatric Dentistry and Dental Public Heath, Faculty of Dental Medicine, Al-Azhar University Assuit Branch, Egypt
2   Department of Restorative Dental Sciences, Alfarabi Colleges for Dentistry and Nursing, Jeddah, Saudi Arabia
,
Yasser R. Souror 
1   Department of Pediatric Dentistry and Dental Public Heath, Faculty of Dental Medicine, Al-Azhar University Assuit Branch, Egypt
3   Division of Pediatric Dentistry, Faculty of Dentistry, Batterjee Medical College for Science and Technology, Jeddah, Saudi Arabia
,
Salah A. Yousief
2   Department of Restorative Dental Sciences, Alfarabi Colleges for Dentistry and Nursing, Jeddah, Saudi Arabia
4   Crown and Bridge Department, Faculty of Dental Medicine, Al Azhar University Assiut Branch, Egypt
,
Waleed M.S. Alqahtani
5   Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
,
Mohamed I. El-Anwar
6   Department of Mechanical Engineering, National Research Centre, Cairo Governorate, Egypt
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Abstract

Objective To study the effect of using different cement types under pediatric stainless-steel crown (SSC) around mandibular second primary molar using three-dimensional (3D) finite element analysis.

Materials and Methods A 3D finite element model was built for pediatric mandibular molar by laser scanning of natural extracted tooth. Four types of cement (zinc phosphate, glass ionomer, resin-modified glass ionomer, and resin) of 200 μm layers thickness were tested under a stainless-steel crown of 130-μm thickness. Twelve case studies were reported within this research, as the applied load of 330 N was tested with three angulations: vertical, oblique at 45°, and laterally.

Results Linear static stress analysis was performed. The resultant stresses and deformations' distribution patterns did not change with cement type, while the values were altered. All deformations and stresses were found within the normal range.

Conclusions Analysis results indicated that using stiffer cement material increases tooth structure stresses and reduces crown body stresses and deformations, while bone was nearly insensitive to cement type.

Keywords

Hall technique - stainless steel crown - finite element - cement - zinc phosphate - glass ionomer


Publikationsverlauf

Artikel online veröffentlicht:
01. Oktober 2020

© 2020. European Journal of Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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