Abstract

Research Article

An evaluation of hardness of commercially available provisional restorative materials: An in vitro study

Nimra Mehraj, Samarth Kumar Agarwal*, Romil Singhal and Kanesha Abrol

Published: 09 January, 2020 | Volume 4 - Issue 1 | Pages: 001-003

Statement of problem: Provisional restorations play a critical role in the success of restorative treatment so they must maintain their integrity in the oral environment throughout the diagnostic and restorative phases.

Purpose: The aim of this study was to compare and evaluate the hardness of four different materials used fabrication of interim restoration.

Material and methods: Ten samples with dimensions of 10mmx10mmx2mm were fabricated from four interim materials (DPI, Tempron, Protemp 4 and Transcan). Hardness of samples was measured using Fischer scope hardness tester.

Result: The highest mean hardness was found in Heat polymerizing acrylic resin group. ANOVA test indicated F value to be 2201.01 which was highly significant (p < 0.001).

Conclusion: Heat polymerizing resin and bisacrylics may be considered in a long term provisional fixed prosthesis.

Read Full Article HTML DOI: 10.29328/journal.jcad.1001013 Cite this Article Read Full Article PDF

Keywords:

Provisional restorations; Hardness; Heat polymerizing acrylic resin

References

  1. Rosenstiel S, Fujimoto J, Land MF. Contemporary fixed prosthodontics. 4rd ed. St. Louis: Missouri. 2007; 466.
  2. Diaz-Arnold AM, Dunne JT, Jones AH. Microhardness of provisional fixed prosthodontic materials. J Prosthet Dent. 1999; 82: 525-528. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/10559723
  3. Savabi O, Nejatidanesh F, Fathi MH, Navabi AA, Savabi G. Evaluation of hardness and wear resistance of interim restorative materials. Dent Res J. 2013; 10: 184-189. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/23946734
  4. Jo LJ, Shenoy KK, Shetty S. Flexural strength and hardness of resins for interim fixed partial dentures. Indian J Dent Res. 2011; 22: 71-76. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/21525681
  5. Digholkar S, Madhav V, Palaskar J. Evaluation of the flexural strength and microhardness of provisional crown and bridge materials fabricated by different methods. J Indian Prosthodont Soc. 2016; 16: 328-334. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/27746595
  6. Khanna G, Aparna IN. Comparison of microhardness of three different types of acrylic artificial denture teeth: An in vitro study. J Orofac Res. 2013; 3: 181-185.
  7. Anusavice KJ. editor. Phillip’s science of dental materials. 11th ed. St Louis: Missouri. 2003; 96-98.
  8. Craig RG. Restorative dental materials. 8th ed. St Louis: Mosby. 1989; 103.
  9. Pereddy MR, Janani S, Gupta B. Comparative evaluation of hardness of four provisional restorative materials: An in vitro study. Eur J Prosthodont. 2016; 4: 51-55.
  10. Akova T, Ozkomur A, Uysal H. Effect of food-simulating liquids on the mechanical properties of provisional restorative materials. Dent Mater. 2006; 22: 1130-1134. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/16386787
  11. Yap AUJ, Mah MKS, Lye CPW, Loh PL. Influence of dietary simulating solvents on the hardness of provisional restorative materials. Dent Mater. 2004; 20: 370-376. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/15019452
  12. Pasha KSA, Bhatia S, Pandav G. An in- vitro study to compare and evaluate the hardness of various commercially available provisional restorative materials. IP Ann Prosthodon Restor Dent. 2018; 4: 44-46.
  13. Dixon DL, Fincher M, Breeding LC, Mueninghoff LA. Mechanical properties of light-polymerizing provisional restorative material with and without reinforcement fibers. J Prosthet Dent. 1995; 73: 510-514. PubMed: https://www.ncbi.nlm.nih.gov/pubmed/11791260

Figures:

Figure 1

Figure 1

Similar Articles

Recently Viewed

Read More

Most Viewed

Read More

Help ?