PMID- 8814630
OWN - NLM
STAT- MEDLINE
DCOM- 19970117
LR  - 20190711
IS  - 0022-3913 (Print)
IS  - 0022-3913 (Linking)
VI  - 76
IP  - 1
DP  - 1996 Jul
TI  - Influence of lamination on the flexural strength of a dental castable glass 
      ceramic.
PG  - 23-8
AB  - This study evaluated the effect of veneering Dicor castable ceramic with Vitadur 
      N and Dicor Plus feldspathic porcelains. A biaxial flexure test was conducted on 
      five groups of specimens (Dicor castable ceramic, Vitadur N dentinal porcelain, 
      Dicor Plus dentinal porcelain, Dicor core veneered with Vitadur N and Dicor core 
      veneered with Dicor Plus castable ceramic). Each group consisted of 10 disks of 
      nearly identical dimensions with a 1.98 +/- 0.04 mm thickness and 15.7 +/- 0.35 
      mm in diameter. Statistical analysis indicated that there was neither significant 
      difference (p > 0.05) between mean flexural strength of Dicor Plus and Vitadur N 
      ceramic or Vitadur N and Dicor/Vitadur N ceramic specimens. The mean flexural 
      strength of Dicor/Vitadur N specimens was significantly lower than the mean 
      flexural strength of Dicor ceramic specimens. Conversely, there was no 
      significant difference between mean flexural strength of Dicor ceramic and 
      Dicor/Dicor Plus ceramic specimens. Scanning electron microscope (SEM) 
      examinations of Dicor/Dicor Plus ceramic specimens suggested better wetting of 
      Dicor core by Dicor Plus ceramic with lower incidence of porosity at the 
      interface. However, Dicor/Vitadur N ceramic specimens exhibited a higher 
      incidence of porosity at the interface. This indicated that lamination of Dicor 
      castable ceramic material with feldspathic porcelain for esthetics could be 
      attained without sacrificing strength of the original material, provided that 
      appropriate veneering material was selected.
FAU - al-Shehri, S A
AU  - al-Shehri SA
AD  - Department of Restorative Dental Sciences, College of Dentistry, King Saud 
      University, Riyadh, Kingdom of Saudi Arabia.
FAU - Mohammed, H
AU  - Mohammed H
FAU - Wilson, C A
AU  - Wilson CA
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Prosthet Dent
JT  - The Journal of prosthetic dentistry
JID - 0376364
RN  - 0 (Aluminum Silicates)
RN  - 0 (Dental Casting Investment)
RN  - 0 (Dicor ceramic)
RN  - 0 (Potassium Compounds)
RN  - 12001-21-7 (Dental Porcelain)
RN  - 12168-80-8 (feldspar)
RN  - 66676-65-1 (Vitadur N)
RN  - LMI26O6933 (Aluminum Oxide)
SB  - IM
MH  - Aluminum Oxide/chemistry
MH  - Aluminum Silicates/chemistry
MH  - Ceramics/*chemistry
MH  - Dental Casting Investment/*chemistry
MH  - Dental Casting Technique
MH  - Dental Polishing
MH  - Dental Porcelain/*chemistry
MH  - Dental Veneers
MH  - Evaluation Studies as Topic
MH  - Glass/*chemistry
MH  - Microscopy, Electron, Scanning
MH  - Pliability
MH  - Porosity
MH  - Potassium Compounds/chemistry
MH  - Stress, Mechanical
MH  - Surface Properties
MH  - Wettability
EDAT- 1996/07/01 00:00
MHDA- 1996/07/01 00:01
CRDT- 1996/07/01 00:00
PHST- 1996/07/01 00:00 [pubmed]
PHST- 1996/07/01 00:01 [medline]
PHST- 1996/07/01 00:00 [entrez]
AID - S0022-3913(96)90341-8 [pii]
AID - 10.1016/s0022-3913(96)90341-8 [doi]
PST - ppublish
SO  - J Prosthet Dent. 1996 Jul;76(1):23-8. doi: 10.1016/s0022-3913(96)90341-8.