EFFECT OF DIFFERENT CHLORHEXIDINE BASED MOUTHWASHES ON HARDNESS OF RESIN BASED DENTAL COMPOSITES.AN IN-VITRO STUDY

Authors

  • Affan Ahmad Karachi Medical and Dental College, Karachi
  • Syed Yawar Ali Abidi Dr. Ishrat ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi
  • Zubair Ahmed Abbasi Karachi Medical and Dental College, Karachi
  • Aqeel Ahmed Shaikh Karachi Medical and Dental College, Karachi
  • Ashraf Ali Meo N.E.D. University of Engineering and Technology, Karachi, Pakistan

DOI:

https://doi.org/10.33279/jkcd.v4i2.259

Keywords:

Hardness, Chlorhexidine, Resin based composites.

Abstract

Objective: The objective of this study was to evaluate the influence of two commercially available chlorhexidine based mouthwashes of different concentrations on hardness of two resin based dental composites.

Materials and Methods: A total of 90 disc shaped specimens were fabricated from Ceram-X (Dentsply) and Filtek Z-350 (3-M ESPE) composite restorative materials. After initial hardness testing (Baseline), samples of each type of composite were randomly divided into three groups (n= 30). The specimens were then stored in Mouthwash – 1, Mouthwash – 2 and Distilled water (DW). All the specimens were stored in an incubator at 37oC during the storage period. Specimens were tested for hardness at baseline, after one week and then after 4 weeks of storage span. Surface hardness measurements were done using a WOLPERT Micro Vickers tester 402-MVD (Hylec Controls, Australia). Three indentations were made with 300 g force for 30 seconds on each sample and average value of the indentations was taken as Vickers Hardness Number (VHN).

Results: The VHN values of Composite – 1 specimens were significantly decreased upon storage in Mouthwash-1 when compared at baseline (57.36 ± 0.80) to one week (54.18 ± 1.57) and four weeks (53.91 ± 1.57) of storage. (p-value < 0.001). Similarly, there was significant decrease in VHN values of specimens upon storage in Mouthwash-2 when they were compared at baseline (56.29 ± 1.29) to one week (54.35 ± 1.81) and four weeks (53.60 ± 1.70) of storage (p-value < 0.001). The VHN values of Composite-2 significantly decreased upon storage in Mouthwash-1 when they were compared at baseline (57.33 ± 1.49) to one week (54.35 ± 1.81) and four weeks (53.60 ± 1.70) of storage (p-value < 0.001).The VHN values of Composite-2 specimens were a significantly decreased upon storage in Mouthwash-2 when they were compared at baseline (57.41 ± 1.68) to one week (53.13 ± 1.76) and four weeks (52.73 ± 1.69) of storage in CMW (p-value < 0.001).

Conclusions: Both the restorative materials exhibited decrease in hardness upon immersion in chlorhexidine based mouthwashes of different concentrations.

 

Downloads

Published

2014-06-30

How to Cite

Affan Ahmad, Syed Yawar Ali Abidi, Zubair Ahmed Abbasi, Aqeel Ahmed Shaikh, & Ashraf Ali Meo. (2014). EFFECT OF DIFFERENT CHLORHEXIDINE BASED MOUTHWASHES ON HARDNESS OF RESIN BASED DENTAL COMPOSITES.AN IN-VITRO STUDY. JOURNAL OF KHYBER COLLEGE OF DENTISTRY, 4(2), 2–9. https://doi.org/10.33279/jkcd.v4i2.259

Issue

Vol. 4 No. 2 (2014): Journal of Khyber College of Dentistry

Section

Original Article

License

Copyright (c) 2014 Affan Ahmad, Syed Yawar Ali Abidi, Zubair Ahmed Abbasi, Aqeel Ahmed Shaikh, Ashraf Ali Meo

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

You are free to:

  1. Share — copy and redistribute the material in any medium or format
  2. Adapt — remix, transform, and build upon the material
  3. The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  1. Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  2. NonCommercial — You may not use the material for commercial purposes .
  3. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.