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VOLUME 13 , ISSUE 4 ( July-August, 2022 ) > List of Articles


In Vitro Assessment of the Wettability of Three Commercially Available Saliva Substitutes on Denture Base Material: A Comparative Study

Santhosh Kumar Vellingiri, Shruti Shivakumar, Banibrata Lahiri, Aaquib Hashmi, Chaitra A Shivakumar, Niveditha Varmudy

Keywords : Contact angle, Denture base material, Saliva substitute, Wettability

Citation Information : Vellingiri SK, Shivakumar S, Lahiri B, Hashmi A, Shivakumar CA, Varmudy N. In Vitro Assessment of the Wettability of Three Commercially Available Saliva Substitutes on Denture Base Material: A Comparative Study. World J Dent 2022; 13 (4):389-393.

DOI: 10.5005/jp-journals-10015-2057

License: CC BY-NC 4.0

Published Online: 18-06-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Aim: To evaluate the wettability of three commercially obtainable saliva substitutes on denture base materials. Materials and methods: One hundred specimens of heat-cured acrylic resin were fabricated for the purpose of recording the contact angulations of the salivary substitute on its surface. A 100 specimens were randomly allocated into one of the following four groups comprising 25 specimens each: group A: Distilled water, group B: Aqwet, group C: Wet Mouth, group D: Moi-Stir. Using dental plaster the wax specimens were subjected to investment in dental flasks. The traditional method of acrylization was performed as per the recommendations of the manufacturer to procure 100 resin specimens. The specimens were subjected to drying and visualized under the SEM to evaluate the finish. The contact angulations that were advancing/receding were assessed with a goniometer employing the dynamic contact angle evaluation. Results: The Aqwet group (72.89 ± 1.24 and 64.30 ± 3.02) displayed the lowest mean advancing/receding contact angles, in pursuit by Moi-Stir (79.12 ± 2.04 and 70.67 ± 2.41), Wet Mouth (82.28 ± 2.46 and 76.16 ± 2.70) as well as Distilled water groups (85.31 ± 3.02 and 80.24 ± 2.49). A statistical significant difference with p < 0.001 was noted amid the experimental groups. Conclusion: Within the limitations of this research, a conclusion arrived at the Aqwet group having lower advancing and receding contact angle values compared to Moi-Stir, Wet Mouth as well as Distilled water groups upon heat-cured acrylic resin. On the basis of the measurements of contact angles, Aqwet salivary substitute exhibited superior wettability of the heat-cures acrylic resins. Clinical significance: A key characteristic affecting oral ease is the wettability of the denture tissue surface by saliva coupled with complete denture retention, especially in patients affected by xerostomia. Therefore, saliva substitutes consisting of thickening agents provide longer relief, increased moistening, and lubrication of the oral surfaces, hence exhibiting good wetting of the tissue surface of the denture.

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  1. Joel Napeñas J, Michael Brennan T, Philip Fox C. Diagnosis and treatment of xerostomia (dry mouth). Odontology 2009;97(2):76–83. DOI: 10.1007/s10266-008-0099-7
  2. Mohsin AHB, Reddy V, Kumar P, et al. Evaluation of wetting ability of five new saliva substitutes on heat-polymerized acrylic resin for retention of complete dentures in dry mouth patients: a comparative study. Pan Afr Med J 2017;27:185. DOI: 10.11604/pamj.2017.27.185.9098
  3. Mohsin AHB, Reddy SV, Kumar MP, et al. Aloe vera for dry mouth denture patients - palliative therapy. J Clin Diagn Res 2017;11(6):ZC20–ZC23. DOI: 10.7860/JCDR/2017/25084.10036
  4. Mendoza AR, Tomlinson MJ. The split denture: a new technique for artificial saliva reservoirs in mandibular dentures. Aust Dent J 2003;48:190–194. DOI: 10.1111/j.1834-7819.2003.tb00031.x
  5. Jin NY, Lee HR, Lee H, et al. Wettability of denture relining materials under water storage over time. J Adv Prosthodont 2009;1(1):1–5. DOI: 10.4047/jap.2009.1.1.1
  6. Monsenego P, Proust J. Complete denture retention, part I: physical analysis of the mechanism: hysteresis of the solid-liquid contact angle. J Prosthet Dent 1989;62(2):189–196. DOI: 10.1016/0022-3913(89)90312-0
  7. Dweck AC. Herbal medicine for the skin – their chemistry and effects on skin and mucous membranes. Pers Care Mag 2002;3:19–21.
  8. Aydin AK, Terzioglu H, Ulubayram K, et al. Wetting properties of saliva substitutes on acrylic resin. Int J Prosthodont 1997;10(5):473–477.
  9. Sharma N, Chitre V. An in-vitro comparative study of wettability of four commercially available saliva substitutes and distilled water on heat-polymerized acrylic resin. J Indian Prosthodont Soc 2008;8(1): 30–35. DOI: 10.4103/0972-4052.43251
  10. Mathrawala NR, Hegde RJ. Lacrimo-auriculo-dento-digital syndrome. J Indian Soc Pedod Prev Dent 2011;29(2):168–170. DOI: 10.4103/0970-4388.84693
  11. Zissis A, Yanikikkis A, Jagger RG, et al. Wettability of denture materials. Quintessence Int 2001;31(6):457–462.
  12. Monsénégo P, Baszkin A, Costa ML, et al. Complete denture retention. Part II: wettability studies on various acrylic resin denture base materials. J Prosthet Dent 1989;62(3):308–312. DOI: 10.1016/0022-3913(89)90338-7
  13. Ramanna PK. Wettability of three denture base materials to human saliva, saliva substitute, and distilled water: a comparative in vitro study. J Indian Prosthodont Soc 2018;18(3):248–256. DOI: 10.4103/jips.jips_301_17
  14. Bikash P, Seema P. Prosthetic rehabilitation of a xerostomia patient with a mandibular split salivary reservoir denture. Ann essences dent 2010;2(3):32–35 DOI: 10.5368/aedj.2010.2.3.32-35.pdf
  15. Yuan Y, Lee TR. Contact angle and wetting properties. Surface science techniques 2013.
  16. Eral HB, 't Mannetje DJCM, Oh JM. Contact angle hysteresis: a review of fundamentals and applications. Colloid Polym Sci 2013;291(2): 247–260. DOI: 10.1007/s00396-012-2796-6
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