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Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study

Lithium disilicate (LDS) glass ceramics are among the most common biomaterials in conservative dentistry and prosthodontics, and their wear behavior is of paramount clinical interest. An innovative in vitro model is presented, which employs CAD/CAM technology to simulate the periodontal ligament and...

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Autores principales: Kosewski, Przemysław, De Angelis, Francesco, Sorrentino, Edoardo, Mielczarek, Agnieszka, Buonvivere, Matteo, D’Arcangelo, Camillo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10455685/
https://www.ncbi.nlm.nih.gov/pubmed/37623640
http://dx.doi.org/10.3390/jfb14080395
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author Kosewski, Przemysław
De Angelis, Francesco
Sorrentino, Edoardo
Mielczarek, Agnieszka
Buonvivere, Matteo
D’Arcangelo, Camillo
author_facet Kosewski, Przemysław
De Angelis, Francesco
Sorrentino, Edoardo
Mielczarek, Agnieszka
Buonvivere, Matteo
D’Arcangelo, Camillo
author_sort Kosewski, Przemysław
collection PubMed
description Lithium disilicate (LDS) glass ceramics are among the most common biomaterials in conservative dentistry and prosthodontics, and their wear behavior is of paramount clinical interest. An innovative in vitro model is presented, which employs CAD/CAM technology to simulate the periodontal ligament and alveolar bone. The model aims to evaluate the effect of the abutment rigidity on the wear resistance of the LDS glass ceramic. Two experimental groups (LDS restorations supported by dental implants, named LDS-on-Implant, or by hybrid ceramic tooth replicas with artificial periodontal ligament, named LDS-on-Tooth-Replica) and a control group (LDS-Cylinders) were compared. Fifteen samples (n = 15) were fabricated for each group and subjected to testing, with LDS antagonistic cusps opposing them over 120,000 cycles using a dual axis chewing simulator. Wear resistance was analyzed by measuring the vertical wear depth (mm) and the volume loss (mm(3)) on each LDS sample, as well as the linear antagonist wear (mm) on LDS cusps. Mean values were calculated for LDS-Cylinders (0.186 mm, 0.322 mm(3), 0.220 mm, respectively), LDS-on-Implant (0.128 mm, 0.166 mm(3), 0.199 mm, respectively), and LDS-on-Tooth-Replica (0.098 mm, 0.107 mm(3), 0.172 mm, respectively) and compared using one-way-ANOVA and Tukey’s tests. The level of significance was set at 0.05 in all tests. Wear facets were inspected under a scanning electron microscope. Data analysis revealed that abutment rigidity was able to significantly affect the wear pattern of LDS, which seems to be more intense on rigid implant-abutment supports compared to resilient teeth replicas with artificial periodontal ligament.
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spelling pubmed-104556852023-08-26 Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study Kosewski, Przemysław De Angelis, Francesco Sorrentino, Edoardo Mielczarek, Agnieszka Buonvivere, Matteo D’Arcangelo, Camillo J Funct Biomater Article Lithium disilicate (LDS) glass ceramics are among the most common biomaterials in conservative dentistry and prosthodontics, and their wear behavior is of paramount clinical interest. An innovative in vitro model is presented, which employs CAD/CAM technology to simulate the periodontal ligament and alveolar bone. The model aims to evaluate the effect of the abutment rigidity on the wear resistance of the LDS glass ceramic. Two experimental groups (LDS restorations supported by dental implants, named LDS-on-Implant, or by hybrid ceramic tooth replicas with artificial periodontal ligament, named LDS-on-Tooth-Replica) and a control group (LDS-Cylinders) were compared. Fifteen samples (n = 15) were fabricated for each group and subjected to testing, with LDS antagonistic cusps opposing them over 120,000 cycles using a dual axis chewing simulator. Wear resistance was analyzed by measuring the vertical wear depth (mm) and the volume loss (mm(3)) on each LDS sample, as well as the linear antagonist wear (mm) on LDS cusps. Mean values were calculated for LDS-Cylinders (0.186 mm, 0.322 mm(3), 0.220 mm, respectively), LDS-on-Implant (0.128 mm, 0.166 mm(3), 0.199 mm, respectively), and LDS-on-Tooth-Replica (0.098 mm, 0.107 mm(3), 0.172 mm, respectively) and compared using one-way-ANOVA and Tukey’s tests. The level of significance was set at 0.05 in all tests. Wear facets were inspected under a scanning electron microscope. Data analysis revealed that abutment rigidity was able to significantly affect the wear pattern of LDS, which seems to be more intense on rigid implant-abutment supports compared to resilient teeth replicas with artificial periodontal ligament. MDPI 2023-07-25 /pmc/articles/PMC10455685/ /pubmed/37623640 http://dx.doi.org/10.3390/jfb14080395 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kosewski, Przemysław
De Angelis, Francesco
Sorrentino, Edoardo
Mielczarek, Agnieszka
Buonvivere, Matteo
D’Arcangelo, Camillo
Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study
title Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study
title_full Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study
title_fullStr Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study
title_full_unstemmed Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study
title_short Effect of the Abutment Rigidity on the Wear Resistance of a Lithium Disilicate Glass Ceramic: An In Vitro Study
title_sort effect of the abutment rigidity on the wear resistance of a lithium disilicate glass ceramic: an in vitro study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10455685/
https://www.ncbi.nlm.nih.gov/pubmed/37623640
http://dx.doi.org/10.3390/jfb14080395
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