PMID- 14511738
OWN - NLM
STAT- MEDLINE
DCOM- 20040122
LR  - 20211203
IS  - 0109-5641 (Print)
IS  - 0109-5641 (Linking)
VI  - 19
IP  - 8
DP  - 2003 Dec
TI  - The effect of thermal cycling on the bond strength of low-fusing porcelain to 
      commercially pure titanium and titanium-aluminium-vanadium alloy.
PG  - 790-6
AB  - OBJECTIVES: Titanium-ceramic restorations are currently used in spite of the 
      pending problem of titanium-ceramic bonding, which has only been partially 
      solved. In addition, some titanium-ceramic systems appear to be susceptible to 
      thermal cycling, which can cause weaker bond strength. The objective of this 
      study was to evaluate the bonding characteristics of titanium porcelain bonded to 
      commercially pure titanium (Ti-Cp) or titanium-aluminum-vanadium (Ti-6Al-4V) 
      alloy as well as the effect of thermal cycling on bond strength. METHODS: A 
      three-point-flexure-test was used to evaluate the bond strength of titanium 
      porcelain bonded to commercially pure titanium and Ti-6Al-4V alloy according to 
      DIN 13.927. To evaluate the effect of thermal cycling on the samples, half were 
      thermal cycled in temperatures ranging from 4 degrees C (+/-2 degrees C) to 55 
      degrees C (+/-2 degrees C). Results were compared with palladium-silver (Pd-Ag) 
      alloy bonded to conventional porcelain (control). Scanning electron microscope 
      (SEM) photomicrographs were taken to characterize the failed surfaces in the 
      metal-ceramic interface. Anova and Tukey's multiple comparison tests were used to 
      analyze the data at a 5% probability level. RESULTS: Thermal cycling did not 
      significantly weaken the bond strength of porcelain to titanium interfaces. There 
      was no significant difference in bond strength between commercially pure titanium 
      (23.60 MPa for thermal cycled group and 24.99 MPa for non-thermal cycled group) 
      and Ti-6Al-4V groups (24.98 and 25.60 MPa for thermal cycled and non-thermal 
      cycled groups, respectively). Bond strength values for the control group (47.98 
      and 45.30 MPa, respectively) were significantly greater than those for 
      commercially pure titanium and Ti-6Al-4V combinations. SIGNIFICANCE: The bond 
      strength of low fusing porcelain bonded to cast pure titanium or Ti-6Al-4V alloy 
      was significantly lower than the conventional combination of porcelain-Pd-Ag 
      alloy. Thermal cycling did not affect the bond strength of any group.
FAU - Troia, Manoel G Jr
AU  - Troia MG Jr
AD  - Department of Prosthodontics, Piracicaba Dentistry School, Campinas State 
      University, Unicamp, Piracicaba, Brazil.
FAU - Henriques, Guilherme E P
AU  - Henriques GE
FAU - Nobilo, Mauro A A
AU  - Nobilo MA
FAU - Mesquita, Marcelo F
AU  - Mesquita MF
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Dent Mater
JT  - Dental materials : official publication of the Academy of Dental Materials
JID - 8508040
RN  - 0 (Alloys)
RN  - 0 (Dental Alloys)
RN  - 0 (Metal Ceramic Alloys)
RN  - 12001-21-7 (Dental Porcelain)
RN  - 12743-70-3 (titanium alloy (TiAl6V4))
RN  - 3M4G523W1G (Silver)
RN  - 5TWQ1V240M (Palladium)
RN  - D1JT611TNE (Titanium)
MH  - Alloys
MH  - Analysis of Variance
MH  - Dental Alloys/*chemistry
MH  - *Dental Bonding
MH  - Dental Porcelain/*chemistry
MH  - Humans
MH  - Materials Testing
MH  - Metal Ceramic Alloys/chemistry
MH  - Microscopy, Electron, Scanning
MH  - Palladium/chemistry
MH  - Pliability
MH  - Silver/chemistry
MH  - Stress, Mechanical
MH  - Surface Properties
MH  - Temperature
MH  - Thermodynamics
MH  - Titanium/*chemistry
EDAT- 2003/09/27 05:00
MHDA- 2004/01/24 05:00
CRDT- 2003/09/27 05:00
PHST- 2003/09/27 05:00 [pubmed]
PHST- 2004/01/24 05:00 [medline]
PHST- 2003/09/27 05:00 [entrez]
AID - S0109564103000277 [pii]
AID - 10.1016/s0109-5641(03)00027-7 [doi]
PST - ppublish
SO  - Dent Mater. 2003 Dec;19(8):790-6. doi: 10.1016/s0109-5641(03)00027-7.