Cargando…

The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study

Background One of the most frequently encountered issues with metal-ceramic restorations is the fracture of veneering porcelain. This in-vitro study aims to evaluate the effect of clinical sandblasting with 50 μm aluminum oxide and 30 μm silica-coated particles on the surface roughness of metal core...

Descripción completa

Detalles Bibliográficos
Autores principales: Yassin, Mohammed, Salih, Shatha
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9879587/
https://www.ncbi.nlm.nih.gov/pubmed/36712729
http://dx.doi.org/10.7759/cureus.33012
_version_ 1784878724938727424
author Yassin, Mohammed
Salih, Shatha
author_facet Yassin, Mohammed
Salih, Shatha
author_sort Yassin, Mohammed
collection PubMed
description Background One of the most frequently encountered issues with metal-ceramic restorations is the fracture of veneering porcelain. This in-vitro study aims to evaluate the effect of clinical sandblasting with 50 μm aluminum oxide and 30 μm silica-coated particles on the surface roughness of metal cores and the subsequent effect on their fracture resistance after the addition of specific adhesive and packable composite as a repair material. Methodology Metal cores (n = 21) were digitally designed and three-dimensionally printed by selective laser melting (SLM) technique. These cores were randomly divided into three groups. Group A (n = 8) was sandblasted with 50 μm aluminum oxide and veneered with light cure composite. Group B (n = 8) was sandblasted with 30 μm silica-coated particles and veneered with light cure composite. Group C control group (n = 5) was sandblasted in the laboratory with 250 μm aluminum oxide and veneered with porcelain. All specimens were tested for surface roughness by a stylus profilometer. After adding the veneering material, all specimens were subjected to a fracture resistance test through a universal testing machine. Results One-way analysis of variance test showed a significantly higher difference for the specimens sandblasted in the laboratory using 250 μm aluminum oxide. Fracture resistance values showed no significant difference between groups A and B. Conclusions Groups A and B showed no significant difference in surface roughness, but their fracture resistance values were above the acceptable clinical limit. Despite the rough nature of metal cores fabricated by the SLM technique, sandblasting with silica-coated particles may be an effective way to optimize the fracture resistance of the repair material because it provides the basis for chemical adhesion.
format Online
Article
Text
id pubmed-9879587
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Cureus
record_format MEDLINE/PubMed
spelling pubmed-98795872023-01-27 The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study Yassin, Mohammed Salih, Shatha Cureus Dentistry Background One of the most frequently encountered issues with metal-ceramic restorations is the fracture of veneering porcelain. This in-vitro study aims to evaluate the effect of clinical sandblasting with 50 μm aluminum oxide and 30 μm silica-coated particles on the surface roughness of metal cores and the subsequent effect on their fracture resistance after the addition of specific adhesive and packable composite as a repair material. Methodology Metal cores (n = 21) were digitally designed and three-dimensionally printed by selective laser melting (SLM) technique. These cores were randomly divided into three groups. Group A (n = 8) was sandblasted with 50 μm aluminum oxide and veneered with light cure composite. Group B (n = 8) was sandblasted with 30 μm silica-coated particles and veneered with light cure composite. Group C control group (n = 5) was sandblasted in the laboratory with 250 μm aluminum oxide and veneered with porcelain. All specimens were tested for surface roughness by a stylus profilometer. After adding the veneering material, all specimens were subjected to a fracture resistance test through a universal testing machine. Results One-way analysis of variance test showed a significantly higher difference for the specimens sandblasted in the laboratory using 250 μm aluminum oxide. Fracture resistance values showed no significant difference between groups A and B. Conclusions Groups A and B showed no significant difference in surface roughness, but their fracture resistance values were above the acceptable clinical limit. Despite the rough nature of metal cores fabricated by the SLM technique, sandblasting with silica-coated particles may be an effective way to optimize the fracture resistance of the repair material because it provides the basis for chemical adhesion. Cureus 2022-12-27 /pmc/articles/PMC9879587/ /pubmed/36712729 http://dx.doi.org/10.7759/cureus.33012 Text en Copyright © 2022, Yassin et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Dentistry
Yassin, Mohammed
Salih, Shatha
The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study
title The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study
title_full The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study
title_fullStr The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study
title_full_unstemmed The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study
title_short The Effect of Clinical Sandblasting With Different Powders on the Surface Roughness of Cores for Metal-Ceramic Crowns and Their Fracture Resistance After the Addition of Repair Material: An In-Vitro Study
title_sort effect of clinical sandblasting with different powders on the surface roughness of cores for metal-ceramic crowns and their fracture resistance after the addition of repair material: an in-vitro study
topic Dentistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9879587/
https://www.ncbi.nlm.nih.gov/pubmed/36712729
http://dx.doi.org/10.7759/cureus.33012
work_keys_str_mv AT yassinmohammed theeffectofclinicalsandblastingwithdifferentpowdersonthesurfaceroughnessofcoresformetalceramiccrownsandtheirfractureresistanceaftertheadditionofrepairmaterialaninvitrostudy
AT salihshatha theeffectofclinicalsandblastingwithdifferentpowdersonthesurfaceroughnessofcoresformetalceramiccrownsandtheirfractureresistanceaftertheadditionofrepairmaterialaninvitrostudy
AT yassinmohammed effectofclinicalsandblastingwithdifferentpowdersonthesurfaceroughnessofcoresformetalceramiccrownsandtheirfractureresistanceaftertheadditionofrepairmaterialaninvitrostudy
AT salihshatha effectofclinicalsandblastingwithdifferentpowdersonthesurfaceroughnessofcoresformetalceramiccrownsandtheirfractureresistanceaftertheadditionofrepairmaterialaninvitrostudy