PMID- 31727577
OWN - NLM
STAT- MEDLINE
DCOM- 20200415
LR  - 20200810
IS  - 2212-4632 (Electronic)
IS  - 1883-1958 (Linking)
VI  - 64
IP  - 2
DP  - 2020 Apr
TI  - Effects of glazing methods on the optical and surface properties of silicate 
      ceramics.
PG  - 202-209
LID - S1883-1958(19)30012-X [pii]
LID - 10.1016/j.jpor.2019.07.005 [doi]
AB  - PURPOSE: This study aims to evaluate the effect of different glazing methods on 
      translucency parameter (TP), contrast ratio (CR), opalescence parameter (OP), 
      surface roughness (Ra) and topography of the silicate ceramics. METHODS: Seventy 
      specimens (10x10x1mm) were fabricated from lithium disilicate (IPS e.max CAD, 
      abbreviated as E) and zirconia-reinforced lithium silicate (Vita Suprinity, 
      abbreviated as VS) ceramics and divided into 7 subgroups (n=10) according to the 
      polishing and glazing procedures: (1) mechanical polishing before-crystallization 
      (m-BC), (2) mechanical polishing after-crystallization (m-AC), (3) glaze 
      powder/liquid after-crystallization (pl-AC), (4) glaze-paste 
      before-crystallization (gp-BC), (5) glaze-paste after-crystallization (gp-AC), 
      (6) glaze-spray before-crystallization (gs-BC), (7) glaze-spray 
      after-crystallization (gs-AC). Color and Ra measurements were performed. 
      CIEL*a*b* and CIEXYZ parameters were recorded and TP, CR, and OP values were 
      calculated. Data were analyzed using two-way ANOVA and Tukey HSD tests (alpha=0.05). 
      RESULTS: In E groups, the highest Ra value was found in gs-AC (1.66+/-0.14mum) while 
      the lowest value was found in pl-AC (0.68+/-0.08mum). In VS groups, the highest Ra 
      value was found in gp-BC (1.64+/-0.25mum) while the lowest value was found in m-AC 
      (0.77+/-0.06mum) (p<0.05). The mean TP value of E (17.62+/-0.73) was found to be 
      higher than VS (15.37+/-1.16). The CR (0.72+/-0.030) and OP (12.06+/-0.74) values of VS 
      were found higher than CR (0.57+/-0.02) and OP (6.72+/-0.40) values of E. 
      CONCLUSIONS: Zirconia-reinforced silicate ceramics have higher opalescence and 
      lower translucency values than lithium disilicate ceramics. Increase in surface 
      roughness reduces translucency. Glaze powder/liquid after-crystallization is the 
      most effective way to reduce surface roughness of lithium disilicate ceramics 
      while that is mechanical polishing after-crystallization for zirconia-reinforced 
      silicate ceramics.
CI  - Copyright (c) 2019 Japan Prosthodontic Society. Published by Elsevier Ltd. All 
      rights reserved.
FAU - Kurt, Meral
AU  - Kurt M
AD  - Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, 
      Turkey. Electronic address: dt.meral@gmail.com.
FAU - Bankoglu Gungor, Merve
AU  - Bankoglu Gungor M
AD  - Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, 
      Turkey.
FAU - Karakoca Nemli, Secil
AU  - Karakoca Nemli S
AD  - Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, 
      Turkey.
FAU - Turhan Bal, Bilge
AU  - Turhan Bal B
AD  - Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, 
      Turkey.
LA  - eng
PT  - Journal Article
DEP - 20191111
PL  - Japan
TA  - J Prosthodont Res
JT  - Journal of prosthodontic research
JID - 101490359
RN  - 0 (Silicates)
RN  - 12001-21-7 (Dental Porcelain)
RN  - C6V6S92N3C (Zirconium)
SB  - IM
MH  - *Ceramics
MH  - Color
MH  - Computer-Aided Design
MH  - *Dental Porcelain
MH  - Materials Testing
MH  - Silicates
MH  - Surface Properties
MH  - Zirconium
OTO - NOTNLM
OT  - Dental ceramics
OT  - Opalescence
OT  - Translucency
EDAT- 2019/11/16 06:00
MHDA- 2020/04/16 06:00
CRDT- 2019/11/16 06:00
PHST- 2019/01/08 00:00 [received]
PHST- 2019/07/02 00:00 [revised]
PHST- 2019/07/09 00:00 [accepted]
PHST- 2019/11/16 06:00 [pubmed]
PHST- 2020/04/16 06:00 [medline]
PHST- 2019/11/16 06:00 [entrez]
AID - S1883-1958(19)30012-X [pii]
AID - 10.1016/j.jpor.2019.07.005 [doi]
PST - ppublish
SO  - J Prosthodont Res. 2020 Apr;64(2):202-209. doi: 10.1016/j.jpor.2019.07.005. Epub 
      2019 Nov 11.