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Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study
AIM: The aim of this study was to assess surface roughness and marginal adaptation of Stereolithographic versus Digital Light Processed three-dimensional (3D) printed provisional resins. MATERIALS AND METHODS: A 3-unit fixed partial denture (FPD) preparation was done on ideal model irrespective to 4...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Wolters Kluwer - Medknow
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9709862/ https://www.ncbi.nlm.nih.gov/pubmed/36511072 http://dx.doi.org/10.4103/jips.jips_8_22 |
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author | Wadhwani, Varun Sivaswamy, Vinay Rajaraman, Vaishnavi |
author_facet | Wadhwani, Varun Sivaswamy, Vinay Rajaraman, Vaishnavi |
author_sort | Wadhwani, Varun |
collection | PubMed |
description | AIM: The aim of this study was to assess surface roughness and marginal adaptation of Stereolithographic versus Digital Light Processed three-dimensional (3D) printed provisional resins. MATERIALS AND METHODS: A 3-unit fixed partial denture (FPD) preparation was done on ideal model irrespective to 44–46. The Model was scanned and a 3-unit FPD was designed using 3-shape software. The STL file was transferred to two different 3D printers – Sprintray digital light processing (DLP) and Formlabs stereolithography (SLA). Eight samples were printed per group (total of 16 samples) using C and B temporary tooth-colored resin and cured according to the manufacturer's instructions. Marginal adaptation was checked for six surfaces per tooth for all the samples using a stereomicroscope. Surface roughness was also calculated for four samples from each group before and after polishing (pumice slurry + rouge and cotton buff) using a contact profilometer. RESULTS: The mean maximum marginal gap overall, was seen for the DLP group on the mesiobuccal surface of the first premolar, i.e., 178.8 ± 8.35 μm, while the minimal marginal gap was seen for the SLA group on the mesiolingual surface of first molar − 32.5 ± 7.07 μm. Furthermore, all the DLP samples showed a statistically significant higher mean marginal gap as compared to SLA samples (P < 0.005). All the samples showed surface roughness within the acceptable range. There was a statistically significant difference noted in Rz (roughness depth) before and after polishing (P < 0.05). CONCLUSION: 3D printed temporary resin FPD via SLA showed a much better marginal adaptation (49.6 μm mean marginal gap for 46 and 106.8 μm for 44) as compared to those printed via DLP (101.8 μm mean marginal gap for 46 and 157.5 μm for 44). All the samples showed an acceptable surface roughness. CLINICAL RELEVANCE: 3D printed temporaries have shown good marginal fit and adaptation and are a viable choice in patients where temporaries has to be given for long term before a final prosthesis can be fabricated (especially for full mouth rehabilitations). |
format | Online Article Text |
id | pubmed-9709862 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Wolters Kluwer - Medknow |
record_format | MEDLINE/PubMed |
spelling | pubmed-97098622023-10-01 Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study Wadhwani, Varun Sivaswamy, Vinay Rajaraman, Vaishnavi J Indian Prosthodont Soc Research AIM: The aim of this study was to assess surface roughness and marginal adaptation of Stereolithographic versus Digital Light Processed three-dimensional (3D) printed provisional resins. MATERIALS AND METHODS: A 3-unit fixed partial denture (FPD) preparation was done on ideal model irrespective to 44–46. The Model was scanned and a 3-unit FPD was designed using 3-shape software. The STL file was transferred to two different 3D printers – Sprintray digital light processing (DLP) and Formlabs stereolithography (SLA). Eight samples were printed per group (total of 16 samples) using C and B temporary tooth-colored resin and cured according to the manufacturer's instructions. Marginal adaptation was checked for six surfaces per tooth for all the samples using a stereomicroscope. Surface roughness was also calculated for four samples from each group before and after polishing (pumice slurry + rouge and cotton buff) using a contact profilometer. RESULTS: The mean maximum marginal gap overall, was seen for the DLP group on the mesiobuccal surface of the first premolar, i.e., 178.8 ± 8.35 μm, while the minimal marginal gap was seen for the SLA group on the mesiolingual surface of first molar − 32.5 ± 7.07 μm. Furthermore, all the DLP samples showed a statistically significant higher mean marginal gap as compared to SLA samples (P < 0.005). All the samples showed surface roughness within the acceptable range. There was a statistically significant difference noted in Rz (roughness depth) before and after polishing (P < 0.05). CONCLUSION: 3D printed temporary resin FPD via SLA showed a much better marginal adaptation (49.6 μm mean marginal gap for 46 and 106.8 μm for 44) as compared to those printed via DLP (101.8 μm mean marginal gap for 46 and 157.5 μm for 44). All the samples showed an acceptable surface roughness. CLINICAL RELEVANCE: 3D printed temporaries have shown good marginal fit and adaptation and are a viable choice in patients where temporaries has to be given for long term before a final prosthesis can be fabricated (especially for full mouth rehabilitations). Wolters Kluwer - Medknow 2022 2022-10-03 /pmc/articles/PMC9709862/ /pubmed/36511072 http://dx.doi.org/10.4103/jips.jips_8_22 Text en Copyright: © 2022 The Journal of Indian Prosthodontic Society 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 | Research Wadhwani, Varun Sivaswamy, Vinay Rajaraman, Vaishnavi Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study |
title | Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study |
title_full | Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study |
title_fullStr | Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study |
title_full_unstemmed | Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study |
title_short | Surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: An in-vitro study |
title_sort | surface roughness and marginal adaptation of stereolithography versus digital light processing threedimensional printed resins: an in-vitro study |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9709862/ https://www.ncbi.nlm.nih.gov/pubmed/36511072 http://dx.doi.org/10.4103/jips.jips_8_22 |
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