PMID- 2490598
OWN - NLM
STAT- MEDLINE
DCOM- 19910815
LR  - 20190912
IS  - 0287-4547 (Print)
IS  - 0287-4547 (Linking)
VI  - 8
IP  - 2
DP  - 1989 Dec
TI  - Fatigue properties of acrylic denture base resins.
PG  - 243-59
AB  - Observations were made of fractured surfaces caused by flexural and tensile 
      fatigue tests made in polymethyl methacrylate denture base resins (PMMA). In 
      addition, the changes in dynamic viscoelastic and tensile properties of the 
      materials along with fatigue propagation were investigated. In the tensile and 
      flexural fatigue tests, both the fractured surfaces, which had striations on 
      their surfaces and cracks near the fractured section, closely resembled each 
      other in appearance. On the other hand, all of the tensile properties, such as 
      elastic modulus, toughness and tensile strength, decreased with the increase of 
      the number of stress cycles in the fatigue test. The storage modulus (E') of the 
      material decreased gradually along with fatigue propagation over the whole range 
      of temperatures tested. The loss modulus (E") and mechanical loss tangent (tan 
      delta) increased slightly. The fatigue limit of four commercial denture base 
      resins varied widely from one product to another.
FAU - Fujii, K
AU  - Fujii K
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - Japan
TA  - Dent Mater J
JT  - Dental materials journal
JID - 8309299
RN  - 0 (Methylmethacrylates)
MH  - Dental Stress Analysis
MH  - *Denture Bases
MH  - Elasticity
MH  - Materials Testing
MH  - *Methylmethacrylates
EDAT- 1989/12/01 00:00
MHDA- 1989/12/01 00:01
CRDT- 1989/12/01 00:00
PHST- 1989/12/01 00:00 [pubmed]
PHST- 1989/12/01 00:01 [medline]
PHST- 1989/12/01 00:00 [entrez]
AID - 10.4012/dmj.8.243 [doi]
PST - ppublish
SO  - Dent Mater J. 1989 Dec;8(2):243-59. doi: 10.4012/dmj.8.243.