ISSN : 0376-4672
Purpose : The purpose of this study was to compare the wettability of 4 type of denture relining materials by measuring contact angle with saliva substitute. Materials and methods : Heat-cured reline resin(Vertex RS), Self-cured reline resin(Probase Cold, Tokuyama Rebase Ⅱ), soft liner(COE Soft) were fabricated as specimens. Before and after storage in saliva substitute for 24 hour, contact angle between specimens and CMC based saliva substitute(Xerova soln) were measured. Contact angle according to denture relining materials were analyzed by one-way ANOVA and Tukey test(α=0.05). Con tact angle before and after storage in saliva substitute were analyzed by independent t test(α=0.05). Results : Before storage, Rebase Ⅱ showed significantly lower cont859623act angle compared to Vertex RS, Probase Cold, COE Soft(P<0.05) and COE Soft showed significantly higher contact angle compared to Vertex RS, Probase Cold, Rebase Ⅱ(P<0.05). After storage, Rebase Ⅱ showed significantly lower contact angle compared to Vertex RS, COE Soft(P<0.05) and COE Soft showed significantly higher contact angle compared to Vertex RS, Probase Cold, Rebase Ⅱ(P<0.05). Before and after storage, Rebase Ⅱ and COE Soft showed significant difference(P<0.05). Conclusion : Before and after storage in saliva substitute for 24 hour, the contact angle was highest in the order of Rebase II, Probase Cold, Vertex RS, and COE Soft. After storage in saliva substitute for 24 hour, the contact angle of Rebase II and COE Soft changed, but Vertex RS and Probase Cold did not change.
1. Kawano F, Tada N, Nagal K, Matsuomoto N. Influence of soft lining materials on pressure distribution. J Prosthet Dent 1991;65(4):567-575.
2. Arena CA, Evans DB, Hilton TJ. A comparison of bond strengths among chairside hard reline materials. J Prosthet Dent 1993;70:126-131.
3. Haywood J, Basker RM, Watson CJ, Wood DJ. A comparison of three hard chairside denture reline materials. Part I. Clinical evaluation. Eur J Prosthodont Restor Dent 2003;11:157-163.
4. Matsumura H, Tanoue N, Kawasaki K, Atsuta M. Clinical evaluation of a chemically cured hard denture relining material. J Oral Rehabil 2001;28:640-644.
5. Takahashi Y, Chai J. Shear bond strength of denture reline polymers to denture base polymers. Int J Prosthodont 2001;14:271–275.
6. Chai J, Takahashi Y, Kawaguchi M. The flexural strengths of denture base acrylic resins after relining with a visible-light- activated material. Int J Prosthodont 1998;11:121–124.
7. An JK, Lee JK, Chung CH. A comparative study of surface characteristiCOE Soft of direct reline resins. J Adv Prosthodont 2001;39(1): 49-57.
8. Jo SH, Lim HS, Sin SY. The Effect of fegmented foods on the color change of soft denture liners. J Adv Prosthodont 2004;42(5):572~582.
9. Yoon MC, Jeong CM, Jeon YC. Effect of denture base surface pretreatments on the tensile bond strength between a resilient liner and a processed denture base resin. J Adv Prosthodont 2007;45(5):621-632.
10. Mohsin AHB, Reddy V, Kumar P, Raj J, Babu SS. Evaluation of wetting ability of five new saliva substitutes on heatpolymerized acrylic resin for retention of complete dentures in dry mouth patients: a comparative study. Pan Afr Med J 2017;10(27):185.
11. Craig R, Berry G, Peyton F. Physical factor related to denture retention. J Prosthet Dent 1960;10:459-467.
12. Monsenego P, Proust J. Complete denture retention. Part I:physical analysis of the mechanism. Hysteresis of the solidliquid contact angle. J Prosthet Dent 1989;62:189-196.
13. Zissis A, Polyzois G, Jagger R, Waters M. Wettability of visible light curing denture lining materials. Int J Prosthodont 2001;14:250-254.
14. Jadhav V, Deshpande S, Radke U, Mahale H, Patil PG. Comparative evaluation of three types of denture base materials with saliva substitute before and after thermocycling: An in vitro study. J Prosthet Dent 2021;126(4):590-594.
15. Jaiswal N, Patil PG, Gangurde A, Parkhedkar RD. Wettability of 3 different artificial saliva substitutes on heat-polymerized acrylic resin. J Prosthet Dent 2019;121(3):517-522.
16. Aydin A, Terzioglu H, Ulubaram K, Hasirci N. Wetting properties of saliva substitutes on acrylic resin. Int J Prosthodont 1997;10:473-477.
17. 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.
18. Jin NY, Lee HR, Lee H, Pae A. Wettability of denture relining materials under water storage over time. J Adv Prosthodont 2009;1 (1):1-5.
19. Kalachandra S, Turner DT. Water sorption of plasticized denture acrylic lining material. Dent Mater 1989;5:161–164.
20. Dixon D, Breeding L, Ekstrand K. Linear dimensional variability of three denture base resins after processing and in water storage. J Prosthet Dent 1992;68:196-200.
21. Ellis B, Lamb DJ, McDonald MP. A study of the composition and diffusion characteristiCOE Soft of a soft liner. J Dent 1979;7(2):133-140.
22. Jones D, Sutow E, Graham B, Milne E, Johnston DE. Influence of plasticizer on soft polymer gelation. J Dent Res 1986;65(5):634-42.
23. Wright P. Composition and properties of soft lining materials for acrylic dentures. J Dent 1981;9(3):210-223.
24. Waters M, Jagger R, Polyzois G. Wettability of silicone rubber maxillofacial prosthetic materials. J Prosthet Dent 1999;81:439–443.
