Cargando…
Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study
BACKGROUND: Denture bases undergo repeated flexing during mastication leading to fatigue failure, demanding a high fatigue strength property. Flexural (transverse) strength is required high to prevent catastrophic failure under load for success. Denture base resins are fabricated by three different...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Wolters Kluwer - Medknow
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9807930/ https://www.ncbi.nlm.nih.gov/pubmed/36605146 |
_version_ | 1784862821726552064 |
---|---|
author | Patankar, Rutika C. More, Vijaysinh Jadhav, Rajashree Sabane, Ajay Kadam, Pankaj Gachake, Arti |
author_facet | Patankar, Rutika C. More, Vijaysinh Jadhav, Rajashree Sabane, Ajay Kadam, Pankaj Gachake, Arti |
author_sort | Patankar, Rutika C. |
collection | PubMed |
description | BACKGROUND: Denture bases undergo repeated flexing during mastication leading to fatigue failure, demanding a high fatigue strength property. Flexural (transverse) strength is required high to prevent catastrophic failure under load for success. Denture base resins are fabricated by three different types of manufacturing: Compression molding, injection molding and computer-aided design (CAD/CAM) milling technique. The study was conducted to identify the denture with the highest flexural strength (Fs) from these methods. MATERIALS AND METHODS: In this in vitro study. Three groups of 15 PMMA acrylic denture base resins (total 45) were processed into rectangular plates of size 65mm × 10mm × 3mm. The three groups differed in the method of processing as compression molded, injection molded, and prepolymerized CAD/CAM milled resins. A 3-point bend test was used to measure the Fs. One-way analysis of variance (ANOVA) with the Post hoc Tukey method was used for statistical analysis. Data was statistically significant with Post hoc Tukey method significance at P < 0.05. RESULTS: The mean Fs of CAD/CAM, injection molding, and compression molding manufacturing techniques are 97.46, 84.42, and 71.72 respectively and standard deviation obtained are 9.93, 10.42, and 11.58, respectively. Statistical analysis suggested the CAD/CAM technique as the best method for the fabrication of dentures because it had the maximum mean Fs and the lowest Fs standard deviation when compared with compression molding and injection molding. CONCLUSION: Denture bases fabricated through CAD/CAM technique are more sustainable than the compression-molded and injection-molded denture bases. |
format | Online Article Text |
id | pubmed-9807930 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Wolters Kluwer - Medknow |
record_format | MEDLINE/PubMed |
spelling | pubmed-98079302023-01-04 Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study Patankar, Rutika C. More, Vijaysinh Jadhav, Rajashree Sabane, Ajay Kadam, Pankaj Gachake, Arti Dent Res J (Isfahan) Original Article BACKGROUND: Denture bases undergo repeated flexing during mastication leading to fatigue failure, demanding a high fatigue strength property. Flexural (transverse) strength is required high to prevent catastrophic failure under load for success. Denture base resins are fabricated by three different types of manufacturing: Compression molding, injection molding and computer-aided design (CAD/CAM) milling technique. The study was conducted to identify the denture with the highest flexural strength (Fs) from these methods. MATERIALS AND METHODS: In this in vitro study. Three groups of 15 PMMA acrylic denture base resins (total 45) were processed into rectangular plates of size 65mm × 10mm × 3mm. The three groups differed in the method of processing as compression molded, injection molded, and prepolymerized CAD/CAM milled resins. A 3-point bend test was used to measure the Fs. One-way analysis of variance (ANOVA) with the Post hoc Tukey method was used for statistical analysis. Data was statistically significant with Post hoc Tukey method significance at P < 0.05. RESULTS: The mean Fs of CAD/CAM, injection molding, and compression molding manufacturing techniques are 97.46, 84.42, and 71.72 respectively and standard deviation obtained are 9.93, 10.42, and 11.58, respectively. Statistical analysis suggested the CAD/CAM technique as the best method for the fabrication of dentures because it had the maximum mean Fs and the lowest Fs standard deviation when compared with compression molding and injection molding. CONCLUSION: Denture bases fabricated through CAD/CAM technique are more sustainable than the compression-molded and injection-molded denture bases. Wolters Kluwer - Medknow 2022-11-17 /pmc/articles/PMC9807930/ /pubmed/36605146 Text en Copyright: © 2022 Dental Research Journal https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms. |
spellingShingle | Original Article Patankar, Rutika C. More, Vijaysinh Jadhav, Rajashree Sabane, Ajay Kadam, Pankaj Gachake, Arti Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study |
title | Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study |
title_full | Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study |
title_fullStr | Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study |
title_full_unstemmed | Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study |
title_short | Comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design CAM technique: An in vitro study |
title_sort | comparative evaluation of flexural strength of denture base resin materials processed using compression molding technique, injection molding technique, and computer-aided design cam technique: an in vitro study |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9807930/ https://www.ncbi.nlm.nih.gov/pubmed/36605146 |
work_keys_str_mv | AT patankarrutikac comparativeevaluationofflexuralstrengthofdenturebaseresinmaterialsprocessedusingcompressionmoldingtechniqueinjectionmoldingtechniqueandcomputeraideddesigncamtechniqueaninvitrostudy AT morevijaysinh comparativeevaluationofflexuralstrengthofdenturebaseresinmaterialsprocessedusingcompressionmoldingtechniqueinjectionmoldingtechniqueandcomputeraideddesigncamtechniqueaninvitrostudy AT jadhavrajashree comparativeevaluationofflexuralstrengthofdenturebaseresinmaterialsprocessedusingcompressionmoldingtechniqueinjectionmoldingtechniqueandcomputeraideddesigncamtechniqueaninvitrostudy AT sabaneajay comparativeevaluationofflexuralstrengthofdenturebaseresinmaterialsprocessedusingcompressionmoldingtechniqueinjectionmoldingtechniqueandcomputeraideddesigncamtechniqueaninvitrostudy AT kadampankaj comparativeevaluationofflexuralstrengthofdenturebaseresinmaterialsprocessedusingcompressionmoldingtechniqueinjectionmoldingtechniqueandcomputeraideddesigncamtechniqueaninvitrostudy AT gachakearti comparativeevaluationofflexuralstrengthofdenturebaseresinmaterialsprocessedusingcompressionmoldingtechniqueinjectionmoldingtechniqueandcomputeraideddesigncamtechniqueaninvitrostudy |