PMID- 38267527
OWN - NLM
STAT- MEDLINE
DCOM- 20240126
LR  - 20240206
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 14
IP  - 1
DP  - 2024 Jan 25
TI  - Fabrication, structural, and enhanced mechanical behavior of MgO substituted PMMA 
      composites for dental applications.
PG  - 2128
LID - 10.1038/s41598-024-52202-4 [doi]
LID - 2128
AB  - The most common denture material used for dentistry is poly-methyl-methacrylate 
      (PMMA). Usually, the polymeric PMMA material has numerous biological, mechanical 
      and cost-effective shortcomings. Hence, to resolve such types of drawbacks, 
      attempts have been made to investigate fillers of the PMMA like alumina 
      (Al(2)O(3)), silica (SiO(2)), zirconia (ZrO(2)) etc. For the enhancement of the 
      PMMA properties a suitable additive is required for its orthopedic applications. 
      Herein, the main motive of this study was to synthesize a magnesium oxide (MgO) 
      reinforced polymer-based hybrid nano-composites by using heat cure method with 
      superior optical, biological and mechanical characteristics. For the structural 
      and vibrational studies of the composites, XRD and FT-IR were carried out. 
      Herein, the percentage of crystallinity for all the fabricated composites were 
      also calculated and found to be 14.79-30.31. Various physical and optical 
      parameters such as density, band gap, Urbach energy, cutoff energy, cutoff 
      wavelength, steepness parameter, electron-phonon interaction, refractive index, 
      and optical dielectric constant were also studied and their values are found to 
      be in the range of 1.21-1.394 g/cm(3), 5.44-5.48 eV, 0.167-0.027 eV, 5.68 eV, 
      218 nm, 0.156-0.962, 4.273-0.693, 1.937-1.932, and 3.752-3.731 respectively. To 
      evaluate the mechanical properties like compressive strength, flexural strength, 
      and fracture toughness of the composites a Universal Testing Machine (UTM) was 
      used and their values were 60.3 and 101 MPa, 78 and 40.3 MPa, 5.85 and 
      9.8 MPa-m(1/2) respectively. Tribological tests of the composites were also 
      carried out. In order to check the toxicity, MTT assay was also carried out for 
      the PM0 and PM15 [(x)MgO + (100 - x) (C(5)O(2)H(8))(n)] (x = 0 and 15) 
      composites. This study provides a comprehensive insight into the structural, 
      physical, optical, and biological features of the fabricated PMMA-MgO composites, 
      highlighting the potential of the PM15 composite with its enhanced density, 
      mechanical strength, and excellent biocompatibility for denture applications.
CI  - (c) 2024. The Author(s).
FAU - Kumari, Savita
AU  - Kumari S
AD  - Department of Physics, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Mishra, Rajat Kumar
AU  - Mishra RK
AD  - Department of Physics, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Parveen, Shama
AU  - Parveen S
AD  - Department of Zoology, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Avinashi, Sarvesh Kumar
AU  - Avinashi SK
AD  - Department of Physics, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Hussain, Ajaz
AU  - Hussain A
AD  - Department of Physics, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Kumar, Saurabh
AU  - Kumar S
AD  - Department of Zoology, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Banerjee, Monisha
AU  - Banerjee M
AD  - Department of Zoology, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India.
FAU - Rao, Jitendra
AU  - Rao J
AD  - Department of Prosthodontics, King George Medical University, Shah Mina Road, 
      Chowk, Lucknow, Uttar Pradesh, 226003, India.
FAU - Kumar, Rupesh
AU  - Kumar R
AD  - Department of Mechanical Engineering, Indian Institute of Technology, Banaras 
      Hindu University, Varanasi, UP, 221005, India.
FAU - Gautam, Rakesh Kumar
AU  - Gautam RK
AD  - Department of Mechanical Engineering, Indian Institute of Technology, Banaras 
      Hindu University, Varanasi, UP, 221005, India.
FAU - Gautam, Chandkiram
AU  - Gautam C
AD  - Department of Physics, University of Lucknow, Lucknow, Uttar Pradesh, 226007, 
      India. gautam_ceramic@yahoo.com.
LA  - eng
GR  - 09/0107(12949)/2021-EMR-I/CSIR/
GR  - 09/107(0399)/2018-EMR-I/CSIR/
GR  - EEQ/2018/000647/SERB-DST/
PT  - Journal Article
DEP - 20240125
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
RN  - 9011-14-7 (Polymethyl Methacrylate)
RN  - 3A3U0GI71G (Magnesium Oxide)
RN  - 7631-86-9 (Silicon Dioxide)
RN  - 0 (Polymers)
RN  - 0 (Dental Materials)
SB  - IM
MH  - *Polymethyl Methacrylate
MH  - *Magnesium Oxide
MH  - Silicon Dioxide
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Polymers
MH  - Dental Materials
PMC - PMC10808548
COIS- The authors declare no competing interests.
EDAT- 2024/01/25 00:42
MHDA- 2024/01/26 06:43
PMCR- 2024/01/25
CRDT- 2024/01/24 23:20
PHST- 2023/09/29 00:00 [received]
PHST- 2024/01/16 00:00 [accepted]
PHST- 2024/01/26 06:43 [medline]
PHST- 2024/01/25 00:42 [pubmed]
PHST- 2024/01/24 23:20 [entrez]
PHST- 2024/01/25 00:00 [pmc-release]
AID - 10.1038/s41598-024-52202-4 [pii]
AID - 52202 [pii]
AID - 10.1038/s41598-024-52202-4 [doi]
PST - epublish
SO  - Sci Rep. 2024 Jan 25;14(1):2128. doi: 10.1038/s41598-024-52202-4.