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  2. Effect Of Quartz Tungsten Halogen And Light-Emitting Diode Curing Units On The Polymerization Of Microfilled And Nanofilled Composites: A Comparative In-Vitro Study

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Effect Of Quartz Tungsten Halogen And Light-Emitting Diode Curing Units On The Polymerization Of Microfilled And Nanofilled Composites: A Comparative In-Vitro Study

    Authors

    • Vathsalya Shetty 1
    • Anil Richhawal 2
    • Abhijeet Khade 1
    • Ashish Mandwe 1
    • Heeresh Shetty 1
    • Sanpreet Singh Sachdev 3

    1 Department of Conservative Dentistry & Endodontics, Nair Hospital and Dental College, Mumbai

    2 Department of Conservative Dentistry & Endodontics, Y.M.T Dental College and Hospital, Navi Mumbai.

    3 Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Mumbai.

,

Document Type : Research Article

10.48047/ejmcm.v09.i08.1368
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Abstract

Introduction
Various factors such as the type of light source, irradiance power, exposure time, curing tip distance, degree of conversion, and type of fillers influence the polymerization of light-cure resins and ultimately, the final properties of the restoration. The present study aimed to compare the efficiency of light-emitting diode (LED) and Quartz tungsten halogen (QTH) curing lights and their effect on the polymerization of microfilled (MF) and nanofilled (NF) composite resins.
Materials and Methods
A total sample of n=80 was divided into eight groups (n=10 each) comprising of two types of MF and NF composites each, cured by QTH and LED. The depth of cure, rise in temperature during curing, and the Vicker’s hardness number (VHN) at various depths were evaluated.
Results: The depth of cure was significantly more (p<0.05) in the NF composites as compared to that observed in the MF composites. The temperature rise was found to be significantly more (p<0.05) in samples cured with QTH than in LED. The VHN were found to be significantly higher at 1mm and reduced as the depth of cure increased to 2 mm and 3 respectively.
Conclusion: LED light curing units are more efficient as well as biocompatible as compared to QTH units. NF composites exhibit a greater depth of cure and surface hardness as compared to the MF composite. The rise in temperature during curing is dependent on the curing unit but not the type of composite.

Keywords

  • Restorative dentistry
  • composite resins
  • polymerization
  • light-cure resins
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European Journal of Molecular & Clinical Medicine
Volume 9, Issue 8 - Issue Serial Number 8
December 2022
Page 1368-1379
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APA

Shetty, V., Richhawal, A., Khade, A., Mandwe, A., Shetty, H., & Sachdev, S. S. (2022). Effect Of Quartz Tungsten Halogen And Light-Emitting Diode Curing Units On The Polymerization Of Microfilled And Nanofilled Composites: A Comparative In-Vitro Study. European Journal of Molecular & Clinical Medicine, 9(8), 1368-1379. doi: 10.48047/ejmcm.v09.i08.1368

MLA

Vathsalya Shetty; Anil Richhawal; Abhijeet Khade; Ashish Mandwe; Heeresh Shetty; Sanpreet Singh Sachdev. "Effect Of Quartz Tungsten Halogen And Light-Emitting Diode Curing Units On The Polymerization Of Microfilled And Nanofilled Composites: A Comparative In-Vitro Study". European Journal of Molecular & Clinical Medicine, 9, 8, 2022, 1368-1379. doi: 10.48047/ejmcm.v09.i08.1368

HARVARD

Shetty, V., Richhawal, A., Khade, A., Mandwe, A., Shetty, H., Sachdev, S. S. (2022). 'Effect Of Quartz Tungsten Halogen And Light-Emitting Diode Curing Units On The Polymerization Of Microfilled And Nanofilled Composites: A Comparative In-Vitro Study', European Journal of Molecular & Clinical Medicine, 9(8), pp. 1368-1379. doi: 10.48047/ejmcm.v09.i08.1368

VANCOUVER

Shetty, V., Richhawal, A., Khade, A., Mandwe, A., Shetty, H., Sachdev, S. S. Effect Of Quartz Tungsten Halogen And Light-Emitting Diode Curing Units On The Polymerization Of Microfilled And Nanofilled Composites: A Comparative In-Vitro Study. European Journal of Molecular & Clinical Medicine, 2022; 9(8): 1368-1379. doi: 10.48047/ejmcm.v09.i08.1368

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