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Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine

AIM: To compare the effect of different zirconia surface treatments on cement bond strength to dentine. MATERIALS AND METHODS: Stick-shaped pre-sintered zirconia (N = 128) were prepared and divided into eight groups (n = 16). Three surface treatments (sandblasting, neodymium-doped yttrium aluminum g...

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Autores principales: Kermanshah, Hamid, Torkamani, Mohammad Javad, Ranjkesh, Bahram, Bahrami, Golnoush, Farahmandpour, Negin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9089761/
https://www.ncbi.nlm.nih.gov/pubmed/35558667
http://dx.doi.org/10.4103/jcd.jcd_249_21
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author Kermanshah, Hamid
Torkamani, Mohammad Javad
Ranjkesh, Bahram
Bahrami, Golnoush
Farahmandpour, Negin
author_facet Kermanshah, Hamid
Torkamani, Mohammad Javad
Ranjkesh, Bahram
Bahrami, Golnoush
Farahmandpour, Negin
author_sort Kermanshah, Hamid
collection PubMed
description AIM: To compare the effect of different zirconia surface treatments on cement bond strength to dentine. MATERIALS AND METHODS: Stick-shaped pre-sintered zirconia (N = 128) were prepared and divided into eight groups (n = 16). Three surface treatments (sandblasting, neodymium-doped yttrium aluminum garnet [Nd:YAG] or carbon dioxide laser irradiation) were applied, either before (later to be sintered) or after sintering. The last test group was sintered zirconia coated with feldspathic veneering ceramic. Sintered zirconia without surface treatment was tested as the control group. Zirconia samples were cemented to dentine using Panavia F2 cement. The micro-shear bond strength was measured after 24 h (n = 8) or 10,000 thermocycling (n = 8). STATISTICAL ANALYSIS: Data were analyzed using one-way analysis of variances and Student's t-tests. RESULTS: Zirconia coated with feldspathic ceramic revealed the highest bond strength (P < 0.001). Presintered zirconia treated with Nd: YAG laser showed a significantly improved bond strength compared to the control group before and after thermocycling. The bond strength after thermocycling was significantly reduced in presintered zirconia treated with Nd: YAG or sandblasting. Adhesive failure at the zirconia-cement interface was the dominant failure type. CONCLUSIONS: Surface treatment of presintered zirconia by Nd:YAG laser or coating of the sintered specimens with feldspathic veneering ceramic increased the zirconia-cement bond strength.
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spelling pubmed-90897612022-05-11 Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine Kermanshah, Hamid Torkamani, Mohammad Javad Ranjkesh, Bahram Bahrami, Golnoush Farahmandpour, Negin J Conserv Dent Original Article AIM: To compare the effect of different zirconia surface treatments on cement bond strength to dentine. MATERIALS AND METHODS: Stick-shaped pre-sintered zirconia (N = 128) were prepared and divided into eight groups (n = 16). Three surface treatments (sandblasting, neodymium-doped yttrium aluminum garnet [Nd:YAG] or carbon dioxide laser irradiation) were applied, either before (later to be sintered) or after sintering. The last test group was sintered zirconia coated with feldspathic veneering ceramic. Sintered zirconia without surface treatment was tested as the control group. Zirconia samples were cemented to dentine using Panavia F2 cement. The micro-shear bond strength was measured after 24 h (n = 8) or 10,000 thermocycling (n = 8). STATISTICAL ANALYSIS: Data were analyzed using one-way analysis of variances and Student's t-tests. RESULTS: Zirconia coated with feldspathic ceramic revealed the highest bond strength (P < 0.001). Presintered zirconia treated with Nd: YAG laser showed a significantly improved bond strength compared to the control group before and after thermocycling. The bond strength after thermocycling was significantly reduced in presintered zirconia treated with Nd: YAG or sandblasting. Adhesive failure at the zirconia-cement interface was the dominant failure type. CONCLUSIONS: Surface treatment of presintered zirconia by Nd:YAG laser or coating of the sintered specimens with feldspathic veneering ceramic increased the zirconia-cement bond strength. Wolters Kluwer - Medknow 2021 2022-04-01 /pmc/articles/PMC9089761/ /pubmed/35558667 http://dx.doi.org/10.4103/jcd.jcd_249_21 Text en Copyright: © 2022 Journal of Conservative Dentistry 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
Kermanshah, Hamid
Torkamani, Mohammad Javad
Ranjkesh, Bahram
Bahrami, Golnoush
Farahmandpour, Negin
Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
title Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
title_full Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
title_fullStr Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
title_full_unstemmed Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
title_short Effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
title_sort effect of different surface treatments of presintered or sintered zirconia on bond strength to dentine
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9089761/
https://www.ncbi.nlm.nih.gov/pubmed/35558667
http://dx.doi.org/10.4103/jcd.jcd_249_21
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