PMID- 9022967
OWN - NLM
STAT- MEDLINE
DCOM- 19970527
LR  - 20190815
IS  - 0142-9612 (Print)
IS  - 0142-9612 (Linking)
VI  - 18
IP  - 2
DP  - 1997 Jan
TI  - Release of residual methyl methacrylate into water from glass fibre-poly(methyl 
      methacrylate) composite used in dentures.
PG  - 181-5
AB  - The aim of this study was to determine the release of residual methyl 
      methacrylate (MMA) into water from heat-cured and chemical-cured test specimens 
      of continuous glass fibre-poly(methyl methacrylate) (PMMA) composite fabricated 
      from experimental glass fibre reinforcement. The glass fibre concentration of the 
      test specimens was 12% by weight. The residual MMA was extracted from the storage 
      water of the test specimens (n = 5 per group) and its concentration was 
      determined by high-performance liquid chromatography. The results revealed that 
      release of residual MMA from heat-cured test specimens with glass fibre 
      reinforcement was significantly higher than that from unreinforced test specimens 
      (P = 0.003), while in chemical-cured test specimens with and without glass fibre 
      reinforcement the amount of MMA released did not differ (P = 0.501). In general, 
      however the test specimens made from chemical-cured PMMA released more residual 
      MMA than specimens made from heat-cured PMMA (P < 0.001). This study suggests 
      that the use of glass fibre reinforcement in heat-cured denture PMMA 
      statistically increases the release of residual MMA from the material, but it is 
      questionable whether it has clinical significance.
FAU - Miettinen, V M
AU  - Miettinen VM
AD  - Department of Oral Pathology, University of Kuopio, Finland.
FAU - Vallittu, P K
AU  - Vallittu PK
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Biomaterials
JT  - Biomaterials
JID - 8100316
RN  - 0 (Biocompatible Materials)
RN  - 0 (Methylmethacrylates)
RN  - 0 (fiberglass)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - *Biocompatible Materials
MH  - *Dentures
MH  - Drug Stability
MH  - *Glass
MH  - Hot Temperature
MH  - *Methylmethacrylates/*analysis
MH  - Water
EDAT- 1997/01/01 00:00
MHDA- 1997/01/01 00:01
CRDT- 1997/01/01 00:00
PHST- 1997/01/01 00:00 [pubmed]
PHST- 1997/01/01 00:01 [medline]
PHST- 1997/01/01 00:00 [entrez]
AID - S0142-9612(96)00123-8 [pii]
AID - 10.1016/s0142-9612(96)00123-8 [doi]
PST - ppublish
SO  - Biomaterials. 1997 Jan;18(2):181-5. doi: 10.1016/s0142-9612(96)00123-8.