Radiopacity of modified microhybrid composite resin:(An in vitro study)

Background: The aim of this study was to measure the radiopacity (RO) of modified microhybrid composite resins by adding 2 types of nanofillers (Zinc Oxide and Calcium Carbonate) in two concentrations 3% and 5% and comparing them to unmodified microhybrid composite resins and to nanofilled composite...

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Main Authors: Sazan S Saleem, Salem A Al-Samarai, Dara H Saeed
Format: Article
Language:English
Published: College of Dentistry/ University of Baghdad 2014-01-01
Series:Journal of Baghdad College of Dentistry
Online Access:https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/193
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spelling doaj-412b83d6528c4cc09498c7138ed0aa1e2021-09-02T21:58:23ZengCollege of Dentistry/ University of BaghdadJournal of Baghdad College of Dentistry2311-52702014-01-0125Special IsRadiopacity of modified microhybrid composite resin:(An in vitro study)Sazan S SaleemSalem A Al-SamaraiDara H SaeedBackground: The aim of this study was to measure the radiopacity (RO) of modified microhybrid composite resins by adding 2 types of nanofillers (Zinc Oxide and Calcium Carbonate) in two concentrations 3% and 5% and comparing them to unmodified microhybrid composite resins and to nanofilled composite resin. Materials and Methods: Two types of composite resin were used (Microhybrid composite MH Quadrent anterior shine and Nanofilled composite resin Filtek Z350 XT), for each tested group five disk-shaped specimens (1-mm-thick and 15 mm diameter) were fabricated. The material samples were radiographed together with the aluminum step wedge. The density of the specimens was determined with a transmission densitometer and was expressed in term of equivalent thickness of aluminum. Data analyzed by one-way ANOVA. Results: The radiopacity (RO) values of the tested group ranged between (0.9293- 2.6242 Eq. Al thickness) and there were significant differences among them. Nanofilled composite resin Filtek Z350 XT showed the highest value of RO while unmodified Microhybrid composite MH Quadrent anterior shine showed the lowest value of RO. Conclusion: The addition of 3% of both the ZnO and CaCO3 nanofillers fillers to microhybrid composite significantly increased the RO, while the addition of 5% of CaCO3 and ZnO nanofillers to microhybrid composite showed non-significant increase in the RO of the composite.https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/193
collection DOAJ
language English
format Article
sources DOAJ
author Sazan S Saleem
Salem A Al-Samarai
Dara H Saeed
spellingShingle Sazan S Saleem
Salem A Al-Samarai
Dara H Saeed
Radiopacity of modified microhybrid composite resin:(An in vitro study)
Journal of Baghdad College of Dentistry
author_facet Sazan S Saleem
Salem A Al-Samarai
Dara H Saeed
author_sort Sazan S Saleem
title Radiopacity of modified microhybrid composite resin:(An in vitro study)
title_short Radiopacity of modified microhybrid composite resin:(An in vitro study)
title_full Radiopacity of modified microhybrid composite resin:(An in vitro study)
title_fullStr Radiopacity of modified microhybrid composite resin:(An in vitro study)
title_full_unstemmed Radiopacity of modified microhybrid composite resin:(An in vitro study)
title_sort radiopacity of modified microhybrid composite resin:(an in vitro study)
publisher College of Dentistry/ University of Baghdad
series Journal of Baghdad College of Dentistry
issn 2311-5270
publishDate 2014-01-01
description Background: The aim of this study was to measure the radiopacity (RO) of modified microhybrid composite resins by adding 2 types of nanofillers (Zinc Oxide and Calcium Carbonate) in two concentrations 3% and 5% and comparing them to unmodified microhybrid composite resins and to nanofilled composite resin. Materials and Methods: Two types of composite resin were used (Microhybrid composite MH Quadrent anterior shine and Nanofilled composite resin Filtek Z350 XT), for each tested group five disk-shaped specimens (1-mm-thick and 15 mm diameter) were fabricated. The material samples were radiographed together with the aluminum step wedge. The density of the specimens was determined with a transmission densitometer and was expressed in term of equivalent thickness of aluminum. Data analyzed by one-way ANOVA. Results: The radiopacity (RO) values of the tested group ranged between (0.9293- 2.6242 Eq. Al thickness) and there were significant differences among them. Nanofilled composite resin Filtek Z350 XT showed the highest value of RO while unmodified Microhybrid composite MH Quadrent anterior shine showed the lowest value of RO. Conclusion: The addition of 3% of both the ZnO and CaCO3 nanofillers fillers to microhybrid composite significantly increased the RO, while the addition of 5% of CaCO3 and ZnO nanofillers to microhybrid composite showed non-significant increase in the RO of the composite.
url https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/193
work_keys_str_mv AT sazanssaleem radiopacityofmodifiedmicrohybridcompositeresinaninvitrostudy
AT salemaalsamarai radiopacityofmodifiedmicrohybridcompositeresinaninvitrostudy
AT darahsaeed radiopacityofmodifiedmicrohybridcompositeresinaninvitrostudy
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