Effect of Staining and Aging on Translucency Parameter of CAD-CAM Materials

Autor: Ana Todorović, Dejan D. Stamenković, Rubens Nisie Tango, Duygu Karasan, Irena Sailer, Rade D. Paravina
Přispěvatelé: Universidade Estadual Paulista (Unesp), Univ Texas Houston, Univ Belgrade, Univ Geneva
Jazyk: angličtina
Rok vydání: 2021
Předmět:
MeSH terms: Optical Phenomena
Organically Modified
Materials science
Organically Modified Ceramics
0206 medical engineering
Coloring agents
Coloring Agents
Age Factors
Lithium Compounds. Author keywords: Optical Properties
Psychophysics
Organically Modified Ceramic
Lithium Silicate
Lithium Disilicate
02 engineering and technology
Ceramic
Lithium Silicate
Lithium Disilicate
Author keywords: Optical Properties
Psychophysics
Organically Modified
Lithium Disilicate
03 medical and health sciences
0302 clinical medicine
Psychophysics
Lithium Silicate
VITA Enamic
cardiovascular diseases
Original Scientific Papers
General Dentistry
Optical Properties
MeSH pojmovi: optički fenomeni
bojila
vrijeme djelovanja
organski preinačene keramike
smjese litija. Autorske ključne riječi: optička svojstva
psihofizika
organski modificirana keramika
litijev silikat
litijev disilikat
Optical Properties [Author keywords]
Optical Phenomena [MeSH terms]
VITA Suprinity
business.industry
RK1-715
030206 dentistry
Organically Modified Ceramic
Ceramic
020601 biomedical engineering
Artificial aging
ddc:617.6
Staining
Dentistry
Lithium Compounds
Standard observer
Nuclear medicine
business
Zdroj: Acta Stomatologica Croatica
Acta Stomalologica Croatica, Vol. 55, No 1 (2021) pp. 2-9
Acta Stomatologica Croatica, Vol 55, Iss 1, Pp 2-9 (2021)
Acta stomatologica Croatica : International journal of oral sciences and dental medicine
Volume 55
Issue 1
Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 1846-0410
0001-7019
Popis: Objectives: To evaluate different intervals of exposure to staining solutions and artificial aging on translucency parameter (TP 00) of CAD-CAM materials. Material and Methods: One millimeter thick square-shaped specimens (N = 288) were cut from Cerasmart (CS), IPS e.max (IE), Lava Ultimate (LU), Shofu HC (SH), Vita Enamic (VE), and Vita Suprinity (VS) and were divided into laboratory and chairside polishing. Reflection wavelength spectra, CIE D65 standard illuminant, 2 ° standard observer, SCI, UV included, SAV aperture, 6 mm diameter, were recorded at 10 nm sensitivity against white and black calibration tiles using a benchtop spectrophotometer. Subsequently, they were converted into CIEDE 2000 TP 00. After baseline measurements (T0), the specimens were divided as follows (n = 8): staining in coffee (C) and wine (W), for 60 (T1) and 120 hours (T2), and accelerated artificial aging (A). Artificial aging (ISO 4892-2 standard) was performed in two cycles of 150 KJ/m 2, for T1 and T2, respectively. TP measurements were repeated at T1 and T2. Data of TP 00 retention were submitted to analysis of variance and Fisher’s PLSD multiple comparison test (α=0.05). Results: Fisher’s PLSD critical differences among materials, time intervals and staining/aging were 0.16, 0.11 and 0.11, respectively. SH showed the highest TP 00 followed by LU > CS > IE = VS > VE. For all time intervals, the lowest TP 00 retention was observed with C. W, and A presented similar values. Conclusions: Translucency Parameter was material, time and staining/aging-dependent material. In majority of cases, it decreased upon staining/aging.
Svrha rada: Procijeniti utjecaj različitih intervala izloženosti otopinama za bojenje i umjetnom starenju na parameter translucencije (TP 00) CAD/CAM materijala.Materijal i metode: Uzorci kvadratnog oblika debljine 1 mm (N = 288) izrezani su iz blokova Cerasmart (CS), IPS e.max (IE), Lava Ultimate (LU), Shofu HC (SH), Vita Enamic (VE) i Vita Suprinity ( VS) te su razvrstani u skupine u kojima je provedeno poliranje ili u laboratoriju ili u ordinaciji. Mjereni su referentnim spektrofotometrom spektri valne duljine refleksije (standardno osvjetljenje CIE D65, standardni promatrač od 2°, SCI, uključen UV, otvor SAV, promjer 6 mm) pri osjetljivosti od 10 nm na bijelim i crnim kalibracijskim pločicama i pretvoreni u CIEDE 2000 TP 00 . Nakon početnih mjerenja (T0) uzorci su podijeljeni na sljedeći način (n = 8): bojenje u kavi (C) i vinu (W) 60 (T1) i 120 sati (T2) te ubrzano umjetno starenje (A) . Umjetno starenje (ISO 4892-2 standard) obavljeno je u dvama ciklusima od 150 KJ/m2, za T1, odnosno T2. Mjerenja TP-a ponovljena su nakon T1 i T2. Podatci o TP 00 podvrgnuti su analizi varijance Fisherovim PLSD- testom višestruke usporedbe (α = 0,05).Rezultati: Kritične razlike Fisherova PLSD-testa između materijala, vremenskih intervala i bojenja/starenja bile su 0,16, 0,11, odnosno 0,11. SH je imao najviši TP 00 , a zatim slijede LU > CS > IE = VS > VE. Za sve intervale zabilježeno je najmanje zadržavanje TP 00 kod C-a. Slične vrijednosti imali su W i A. Zaključci: Parametar translucencije ovisio je o materijalu, vremenu i bojenju/starenju. U većini slučajeva smanjio se nakon bojenja/starenja.
Databáze: OpenAIRE
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