In Vitro Evaluation of the Wear of Three Composite Resins

BACKGROUND AND OBJECTIVE: Wear resistance of composites is important for preservation of masticatory ability and vertical height. The aim of this study was to compare wear resistance of two laboratory type composites and one direct composite.METHODS: In this in vitro study 5 samples from each type o...

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Autores principales:	AH Alhavaz, H Alaghemand, D Qujeq, R Mofidian
Formato:	article
Lenguaje:	EN FA
Publicado:	Babol University of Medical Sciences 2009
Materias:	in vitro wear three-body wearing composite laboratory composite Medicine R Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/23467f2849c54a65ba147f06b18d6e4a
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spelling	oai:doaj.org-article:23467f2849c54a65ba147f06b18d6e4a2021-11-10T09:03:00ZIn Vitro Evaluation of the Wear of Three Composite Resins1561-41072251-7170https://doaj.org/article/23467f2849c54a65ba147f06b18d6e4a2009-10-01T00:00:00Zhttp://jbums.org/article-1-3260-en.htmlhttps://doaj.org/toc/1561-4107https://doaj.org/toc/2251-7170BACKGROUND AND OBJECTIVE: Wear resistance of composites is important for preservation of masticatory ability and vertical height. The aim of this study was to compare wear resistance of two laboratory type composites and one direct composite.METHODS: In this in vitro study 5 samples from each type of composites (SR Adoro, GC gradia, Clearfil ST) was prepared in incremental technique. Exposure time was 40 seconds and thickness of layers was 1 mm. Wearing load was 6kg and applied via pressable chromium cobalt bar (1.98 mm2 tip) at 5000, 20000, 80000, 120000 cycles. Pre and post wearing samples weight was measured by an electronical weight balance with 0.0001 gr accuracy. The data was compared.FINDINGS: There was significant decrease in weight of all type of composites from initial weight to 120000 cycles (p≤0.001). (GC gradia 4.42±1.26mg, SR Adoro 6.5±0.89mg, Clearfil ST 4.52±2.14mg). Although after applying all wearing cycles the average decrease of weight was smaller in GC gradia rather than Clearfil St that smaller than SR Adoro, however there was no significant difference.CONCLUSION: GC gradia and Clearfil ST showed less wear than SR Adoro. There was significant wear in all types of composites in wearing cycles.AH Alhavaz,H Alaghemand,D QujeqR MofidianBabol University of Medical Sciencesarticlein vitro wearthree-body wearingcompositelaboratory compositeMedicineRMedicine (General)R5-920ENFAMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, Vol 11, Iss 4, Pp 62-68 (2009)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	in vitro wear three-body wearing composite laboratory composite Medicine R Medicine (General) R5-920
spellingShingle	in vitro wear three-body wearing composite laboratory composite Medicine R Medicine (General) R5-920 AH Alhavaz, H Alaghemand, D Qujeq R Mofidian In Vitro Evaluation of the Wear of Three Composite Resins
description	BACKGROUND AND OBJECTIVE: Wear resistance of composites is important for preservation of masticatory ability and vertical height. The aim of this study was to compare wear resistance of two laboratory type composites and one direct composite.METHODS: In this in vitro study 5 samples from each type of composites (SR Adoro, GC gradia, Clearfil ST) was prepared in incremental technique. Exposure time was 40 seconds and thickness of layers was 1 mm. Wearing load was 6kg and applied via pressable chromium cobalt bar (1.98 mm2 tip) at 5000, 20000, 80000, 120000 cycles. Pre and post wearing samples weight was measured by an electronical weight balance with 0.0001 gr accuracy. The data was compared.FINDINGS: There was significant decrease in weight of all type of composites from initial weight to 120000 cycles (p≤0.001). (GC gradia 4.42±1.26mg, SR Adoro 6.5±0.89mg, Clearfil ST 4.52±2.14mg). Although after applying all wearing cycles the average decrease of weight was smaller in GC gradia rather than Clearfil St that smaller than SR Adoro, however there was no significant difference.CONCLUSION: GC gradia and Clearfil ST showed less wear than SR Adoro. There was significant wear in all types of composites in wearing cycles.
format	article
author	AH Alhavaz, H Alaghemand, D Qujeq R Mofidian
author_facet	AH Alhavaz, H Alaghemand, D Qujeq R Mofidian
author_sort	AH Alhavaz,
title	In Vitro Evaluation of the Wear of Three Composite Resins
title_short	In Vitro Evaluation of the Wear of Three Composite Resins
title_full	In Vitro Evaluation of the Wear of Three Composite Resins
title_fullStr	In Vitro Evaluation of the Wear of Three Composite Resins
title_full_unstemmed	In Vitro Evaluation of the Wear of Three Composite Resins
title_sort	in vitro evaluation of the wear of three composite resins
publisher	Babol University of Medical Sciences
publishDate	2009
url	https://doaj.org/article/23467f2849c54a65ba147f06b18d6e4a
work_keys_str_mv	AT ahalhavaz invitroevaluationofthewearofthreecompositeresins AT halaghemand invitroevaluationofthewearofthreecompositeresins AT dqujeq invitroevaluationofthewearofthreecompositeresins AT rmofidian invitroevaluationofthewearofthreecompositeresins
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In Vitro Evaluation of the Wear of Three Composite Resins

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