Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin

Aim: To assess the fracture strength of repaired implant-supported cement-retained monolithic zirconia restorations with porcelain and composite resin. Materials and methods: Nighty monolithic zirconia crowns were cemented over the implant abutments, and divided into three groups (n = 30): control,...

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Autores principales:	Hamid Neshandar Asli, Mehran Falahchai, Samiye Rahimabadi, Hamidreza Arbab, Zoheir Mousavi Mehr
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	implant supported dental prosthesis single-tooth implants y-tzp ceramic Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/53c4f30f2c0b475788a1c0cf5cfee332
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spelling	oai:doaj.org-article:53c4f30f2c0b475788a1c0cf5cfee3322021-11-12T10:10:06ZAbutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin2155-821310.4103/denthyp.denthyp_125_21https://doaj.org/article/53c4f30f2c0b475788a1c0cf5cfee3322021-01-01T00:00:00Zhttp://www.dentalhypotheses.com/article.asp?issn=2155-8213;year=2021;volume=12;issue=3;spage=128;epage=131;aulast=Aslihttps://doaj.org/toc/2155-8213Aim: To assess the fracture strength of repaired implant-supported cement-retained monolithic zirconia restorations with porcelain and composite resin. Materials and methods: Nighty monolithic zirconia crowns were cemented over the implant abutments, and divided into three groups (n = 30): control, screw access hole preparation in the crown and its restoration with composite resin (HC), and screw access hole preparation in the crown and its restoration with feldspathic porcelain (HP). Fracture strength was measured by a universal testing machine. Data were analyzed (α < 0.05). Results: The maximum fracture strength was in the control group (764.23 ± 108.41 N), whereas the minimum was in HC group (686.25 ± 101.86 N). The mean fracture strength in HC group was significantly lower than that in the control group (P = 0.008). No significant difference was noted between other groups (P > 0.05). Conclusion: Repaired implant-supported monolithic zirconia crowns with feldspathic porcelain provided a fracture strength comparable to that in the control group.Hamid Neshandar AsliMehran FalahchaiSamiye RahimabadiHamidreza ArbabZoheir Mousavi MehrWolters Kluwer Medknow Publicationsarticleimplant supported dental prosthesissingle-tooth implantsy-tzp ceramicDentistryRK1-715ENDental Hypotheses, Vol 12, Iss 3, Pp 128-131 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	implant supported dental prosthesis single-tooth implants y-tzp ceramic Dentistry RK1-715
spellingShingle	implant supported dental prosthesis single-tooth implants y-tzp ceramic Dentistry RK1-715 Hamid Neshandar Asli Mehran Falahchai Samiye Rahimabadi Hamidreza Arbab Zoheir Mousavi Mehr Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin
description	Aim: To assess the fracture strength of repaired implant-supported cement-retained monolithic zirconia restorations with porcelain and composite resin. Materials and methods: Nighty monolithic zirconia crowns were cemented over the implant abutments, and divided into three groups (n = 30): control, screw access hole preparation in the crown and its restoration with composite resin (HC), and screw access hole preparation in the crown and its restoration with feldspathic porcelain (HP). Fracture strength was measured by a universal testing machine. Data were analyzed (α < 0.05). Results: The maximum fracture strength was in the control group (764.23 ± 108.41 N), whereas the minimum was in HC group (686.25 ± 101.86 N). The mean fracture strength in HC group was significantly lower than that in the control group (P = 0.008). No significant difference was noted between other groups (P > 0.05). Conclusion: Repaired implant-supported monolithic zirconia crowns with feldspathic porcelain provided a fracture strength comparable to that in the control group.
format	article
author	Hamid Neshandar Asli Mehran Falahchai Samiye Rahimabadi Hamidreza Arbab Zoheir Mousavi Mehr
author_facet	Hamid Neshandar Asli Mehran Falahchai Samiye Rahimabadi Hamidreza Arbab Zoheir Mousavi Mehr
author_sort	Hamid Neshandar Asli
title	Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin
title_short	Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin
title_full	Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin
title_fullStr	Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin
title_full_unstemmed	Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin
title_sort	abutment screw loosening in single implant restorations: evaluation of fracture strength of implant-supported cement-retained monolithic zirconia restorations repaired with porcelain and composite resin
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/53c4f30f2c0b475788a1c0cf5cfee332
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Abutment Screw Loosening in Single Implant Restorations: Evaluation of Fracture Strength of Implant-Supported Cement-Retained Monolithic Zirconia Restorations Repaired with Porcelain and Composite Resin

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