Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates

Objective: To compare the translucency and masking of zirconia-reinforced lithium silicate with lithium disilicate glass-ceramic and hybrid composite. Materials and methods: One hundred and twenty disc-shaped specimens were fabricated using Enamic, Celtra Duo, IPS E.max CAD, and Suprinity. Twelve gr...

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Autores principales:	Abdullah Saeed Alayad, Abdulaziz Alqhatani, Mohammed S. Alkatheeri, Mohammed Alshehri, Mohammed A. AlQahtani, Aljoharah Ebrahim Bin Osseil, Rawan Abdullah Almusallam
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ceramics CAD/CAM ceramics Translucency Ceramic thickness Color masking Substrates Medicine R Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/254742dad03a41f9b018c73d348d7705
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spelling	oai:doaj.org-article:254742dad03a41f9b018c73d348d77052021-11-10T04:18:52ZEffects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates1013-905210.1016/j.sdentj.2020.03.011https://doaj.org/article/254742dad03a41f9b018c73d348d77052021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1013905220302492https://doaj.org/toc/1013-9052Objective: To compare the translucency and masking of zirconia-reinforced lithium silicate with lithium disilicate glass-ceramic and hybrid composite. Materials and methods: One hundred and twenty disc-shaped specimens were fabricated using Enamic, Celtra Duo, IPS E.max CAD, and Suprinity. Twelve groups were prepared according to material type and thickness (0.5, 1.0, and 1.5 mm). The specimens were tested over five substrates: composite resin-A3.5 shade (A3.5 control group), zirconia-A1 shade (ZR), nickel–chromium alloy (NC), black (B), and white (W). A spectrophotometer operating at wavelengths from 360 to 750 nm and a view-area size of 9.53 mm was used for color measurement. Results: Mean color difference values (ΔΕ) were found to be lowest in Suprinity and highest in IPS E.max. CAD. Color difference values were significantly related to substrate shade. The A3.5 substrate revealed the significantly lowest ΔΕ values of all the substrates (P = 0.05). Regarding the translucency parameters for ceramics of different thicknesses, a significant difference was observed among all groups except in Suprinity. Conclusions: Different ceramic types with different thicknesses and substrate strongly affect translucency and masking. Clinical significance: Fabricating durable aesthetic restorations that also meets patients’ expectations is among the most significant challenges in dentistry. With high demand for more natural restorations, ceramics based on computer-aided design (CAD) and computer-aided manufacture (CAM) became popular and exhibited excellent results. However, various factors such as abutment shade, luting cement color, and ceramic type, thickness, and translucency may affect the prosthesis shade. The objective of this study was to evaluate the effects of these factors on the final shades of CAD/CAM-based ceramic restorations.Abdullah Saeed AlayadAbdulaziz AlqhataniMohammed S. AlkatheeriMohammed AlshehriMohammed A. AlQahtaniAljoharah Ebrahim Bin OsseilRawan Abdullah AlmusallamElsevierarticleCeramicsCAD/CAM ceramicsTranslucencyCeramic thicknessColor maskingSubstratesMedicineRDentistryRK1-715ENSaudi Dental Journal, Vol 33, Iss 7, Pp 761-768 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ceramics CAD/CAM ceramics Translucency Ceramic thickness Color masking Substrates Medicine R Dentistry RK1-715
spellingShingle	Ceramics CAD/CAM ceramics Translucency Ceramic thickness Color masking Substrates Medicine R Dentistry RK1-715 Abdullah Saeed Alayad Abdulaziz Alqhatani Mohammed S. Alkatheeri Mohammed Alshehri Mohammed A. AlQahtani Aljoharah Ebrahim Bin Osseil Rawan Abdullah Almusallam Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates
description	Objective: To compare the translucency and masking of zirconia-reinforced lithium silicate with lithium disilicate glass-ceramic and hybrid composite. Materials and methods: One hundred and twenty disc-shaped specimens were fabricated using Enamic, Celtra Duo, IPS E.max CAD, and Suprinity. Twelve groups were prepared according to material type and thickness (0.5, 1.0, and 1.5 mm). The specimens were tested over five substrates: composite resin-A3.5 shade (A3.5 control group), zirconia-A1 shade (ZR), nickel–chromium alloy (NC), black (B), and white (W). A spectrophotometer operating at wavelengths from 360 to 750 nm and a view-area size of 9.53 mm was used for color measurement. Results: Mean color difference values (ΔΕ) were found to be lowest in Suprinity and highest in IPS E.max. CAD. Color difference values were significantly related to substrate shade. The A3.5 substrate revealed the significantly lowest ΔΕ values of all the substrates (P = 0.05). Regarding the translucency parameters for ceramics of different thicknesses, a significant difference was observed among all groups except in Suprinity. Conclusions: Different ceramic types with different thicknesses and substrate strongly affect translucency and masking. Clinical significance: Fabricating durable aesthetic restorations that also meets patients’ expectations is among the most significant challenges in dentistry. With high demand for more natural restorations, ceramics based on computer-aided design (CAD) and computer-aided manufacture (CAM) became popular and exhibited excellent results. However, various factors such as abutment shade, luting cement color, and ceramic type, thickness, and translucency may affect the prosthesis shade. The objective of this study was to evaluate the effects of these factors on the final shades of CAD/CAM-based ceramic restorations.
format	article
author	Abdullah Saeed Alayad Abdulaziz Alqhatani Mohammed S. Alkatheeri Mohammed Alshehri Mohammed A. AlQahtani Aljoharah Ebrahim Bin Osseil Rawan Abdullah Almusallam
author_facet	Abdullah Saeed Alayad Abdulaziz Alqhatani Mohammed S. Alkatheeri Mohammed Alshehri Mohammed A. AlQahtani Aljoharah Ebrahim Bin Osseil Rawan Abdullah Almusallam
author_sort	Abdullah Saeed Alayad
title	Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates
title_short	Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates
title_full	Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates
title_fullStr	Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates
title_full_unstemmed	Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates
title_sort	effects of cad/cam ceramics and thicknesses on translucency and color masking of substrates
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/254742dad03a41f9b018c73d348d7705
work_keys_str_mv	AT abdullahsaeedalayad effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates AT abdulazizalqhatani effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates AT mohammedsalkatheeri effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates AT mohammedalshehri effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates AT mohammedaalqahtani effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates AT aljoharahebrahimbinosseil effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates AT rawanabdullahalmusallam effectsofcadcamceramicsandthicknessesontranslucencyandcolormaskingofsubstrates
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Effects of CAD/CAM ceramics and thicknesses on translucency and color masking of substrates

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