Effect of black tea on the transverse strength of heat-polymerized acrylic resin

Eni Rahmi, Zulkarnain Agus, Riezka Hanafiah Putri


Introduction: Heat-polymerized acrylic resin is the most basic denture material used. One of the mechanical properties of an acrylic resin is its transverse strength. The transverse strength test provides an overview of the material’s durability in accepting the load at mastication. Consumption of tea, especially black tea in the world placed the second most consumed. The purpose of this study was to determine the effect of black tea on the transverse strength of heat-polymerized acrylic resin. Methods: This research was an experimental laboratory with 24 samples of heat-polymerized acrylic resin plate with the size of 65x10x2.5 mm. The sample was divided into 6 groups, each consisted of 4 samples. The first, second, and the third groups were immersed in aquadest for consecutively 1, 4, and 20 days. The fourth, fifth, and sixth groups were immersed in the black tea for consecutively 1, 4, and 20 days. The transverse strength was tested using the three-point bending method with the Universal Testing Machine. The results of the transverse strength measurement were then analyzed statistically by the One-way ANOVA test and Holm’s sequential Bonferroni posthoc test as an advanced test. Results: The results of the statistical test showed that p<0.05 (p=0.000) which means that the six groups have a significant difference in the average value of the transverse strength. Conclusion: The conclusion of this research was the black tea immersion duration was affecting the transverse strength differences of the heat-polymerized acrylic resin.


Heat-polymerized acrylic resin, black tea, transverse strength

Full Text:



Anusavice KJ. Phillip’s science of dental material. 12st ed. St. Louis: Saunders-Elsevier; 2003. p. 74-98,722-47.

Combe EC. Notes on dental materials (Dental Series). 6th ed. London: Churchill Livingston; 1992. p. 255-67.

Hussain S. Textbook of dental materials. 1st ed. New Delhi: Jaypee Brothers Medical Pub; 2008.p. 104-50.

Jagger DC, Jagger RG, Allen SM, Harrison A. An investigation into the transverse and impact strength of “high strength” denture base acrylic resins. J Oral Rehabil Mar 2002;29(3): p. 263-7.

Hasan RH. Comparison of some physical properties of acrylic denture base material cured by water bath and microwave techniques. Al-Rafidain Dent J. 2003;3(2): p. 143-14.

Pisani MX, da Silva CHL, Paranhos HFO, Souza RF, Macedo AP. The effect of experimental denture cleanser solution ricinus communis on acrylic resin properties. Mat Res. Jul-Sep 2010;13(3): p. 369-73. DOI: 10.1590/S1516-14392010000300015.

Shen C, Javid NS, Colaizzi FA. The effect of glutaraldehyde base desinfectant on denture base. J Prosthet Dent. May 1989;61(5): p. 583-9.

Gardner EJ, Ruxton CH, Leeds AR. Black tea–helpful or harmful? Areview of the evidence. Eur J Clin Nutr. Jan 2007;61(1): p. 3-18. DOI: 10.1038/sj.ejcn.1602489.

Mazza G, Oomah BD. Herbs, botanicals and tea. 1st ed. Boca Raton: CRC Press; 2000. p. 265-80.

Al-Nori AK, Hussain AMA, Rejab LT. Water sorption of heat cured acrylic resin. Al-Rafidain Dent J. 2007;7(2): p. 186-94.

Sakaguchi RL, Powers JM. Craig’s restorative dental materials. 13th ed. Philadelphia: Mosby-Elsevier; 2012: p. 52-78, 514-49.

O’Brien WJ. Dental material and their selection. 3rd ed. Chicago: Quintessence Publishing Co. Inc.; 2002. p. 74-89.

Faot F, Panza LHV, Garcia RCMR, Del Bel Cury AA. Impact and flexural strength and fracture morphology of acrylic resins with impact modifiers. Open Dent J. 2009;3: p. 137-43. DOI: 10.2174/1874210600903010137.

DOI: https://doi.org/10.24198/pjd.vol29no3.14469

Article metrics

Abstract views : 0 | views : 0


  • There are currently no refbacks.

Copyright (c) 2017 Padjadjaran Journal of Dentistry

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

 Visitor Stat

Creative Commons License
Padjadjaran Journal of Dentistry is licensed under a Creative Commons Attribution 4.0 International License