PMID- 34322206
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220425
IS  - 1735-3327 (Print)
IS  - 2008-0255 (Electronic)
IS  - 1735-3327 (Linking)
VI  - 18
DP  - 2021
TI  - Flexural strength of polymethyl methacrylate reinforced with high-performance 
      polymer and metal mesh.
PG  - 30
LID - 30
AB  - BACKGROUND: The flexural strength (FS) of a denture base material is of great 
      concern, and many approaches have been used to strengthen the denture acrylic 
      resins. The present study aimed to evaluate the effect of high-performance 
      polymer (BioHPP) and metal mesh reinforcement on the FS of a heat-cured poly 
      methyl methacrylate (PMMA) acrylic resin. MATERIALS AND METHODS: This 
      experimental study was done on 30 rectangular specimens (64 mm x 13 mm x 3 mm) of 
      a heat-cured PMMA resin. The specimens were divided into three groups (n = 10) to 
      be reinforced with either metal mesh or BioHPP mesh; one group was left 
      nonreinforced, serving as the control group. The FS of specimens was assessed 
      through a 3-point bending test by using a universal testing machine at a 
      crosshead speed of 2 mm/min. Kruskal-Wallis H and Dunn's post hoc tests were used 
      to compare the FS among the groups (alpha = 0.05). RESULTS: The FS in the 
      metal-reinforced group was statistically significantly higher than the two other 
      groups (P < 0.001). However, the FS of the BioHPP-reinforced samples was not 
      statistically significantly higher than the nonreinforced ones (P = 0.614). 
      CONCLUSION: Reinforcing the PMMA with metal mesh significantly enhances its FS 
      while BioHPP has no significant effect on the PMMA FS.
CI  - Copyright: (c) 2021 Dental Research Journal.
FAU - Ardakani, Zahra Hashemi
AU  - Ardakani ZH
AD  - Department of Prosthodontics, Biomaterials Research Center, School of Dentistry, 
      Shiraz University of Medical Sciences, Shiraz, Iran.
FAU - Giti, Rashin
AU  - Giti R
AD  - Department of Prosthodontics, Biomaterials Research Center, School of Dentistry, 
      Shiraz University of Medical Sciences, Shiraz, Iran.
FAU - Dabiri, Shima
AU  - Dabiri S
AD  - Department of Prosthodontics, School of Dentistry, Shiraz University of Medical 
      Sciences, Shiraz, Iran.
FAU - Hosseini, Amir Hashemi
AU  - Hosseini AH
AD  - Department of Prosthodontics, Student Research Committee, School of Dentistry, 
      Shiraz University of Medical Sciences, Shiraz, Iran.
FAU - Moayedi, Marzieh
AU  - Moayedi M
AD  - Department of Prosthodontics, Student Research Committee, School of Dentistry, 
      Shiraz University of Medical Sciences, Shiraz, Iran.
LA  - eng
PT  - Journal Article
DEP - 20210524
PL  - Iran
TA  - Dent Res J (Isfahan)
JT  - Dental research journal
JID - 101471186
PMC - PMC8314965
OTO - NOTNLM
OT  - Flexural strength
OT  - polyetheretherketone
OT  - polymethyl methacrylate
OT  - reinforcement
COIS- The authors of this manuscript declare that they have no conflicts of interest, 
      real or perceived, financial or non-financial in this article.
EDAT- 2021/07/30 06:00
MHDA- 2021/07/30 06:01
PMCR- 2021/05/24
CRDT- 2021/07/29 06:50
PHST- 2019/08/11 00:00 [received]
PHST- 2020/05/29 00:00 [revised]
PHST- 2020/09/19 00:00 [accepted]
PHST- 2021/07/29 06:50 [entrez]
PHST- 2021/07/30 06:00 [pubmed]
PHST- 2021/07/30 06:01 [medline]
PHST- 2021/05/24 00:00 [pmc-release]
AID - DRJ-18-30 [pii]
PST - epublish
SO  - Dent Res J (Isfahan). 2021 May 24;18:30. eCollection 2021.