Preparation and lab evaluation of a new denture adhesive

Abstract

To develop a new kind of denture adhesive (DA), then to evaluate its mechanical and chemical properties, polyethylene oxide, methyl cellulose, sodium alginate, and cellulose ether, were viewed as four main factors, which would affect bonding load of DA, while two levels of each component were differentiated. Following table L₁₂(2¹¹), twelve different formulae were designed by orthogonal design and bonding load values were recorded. According to bonding load of each formula, the optimized formula was selected out as this new adhesive material, Comfort-DA II. The changing of bonding load values of Comfort-DA II marinating in artificial saliva were measured, and an existing product, Protefix and Comfort-DA, were used as controls. Following initial load readings, samples and controls were measured from 1- to 12- hour intervals, respectively. Comfort-DA II was diluted at 1.0%, 2.0%, 3.3%, 5.0%, and 10.0% concentrations, and pH values were measured at 1-, 2-, 3-, 4-, 5-, 6-, and 8-hour intervals. Comfort-DA II presented as a pale-yellow paste. Group 6 gained the highest bonding load value of [193.8 (4.2)] N. The mean bonding load of Comfort-DA II was statistically different to Comfort-DA (p = 0.004) and Protefix (p = 0.006). Comfort-DA II exhibited a progressive increase in pH value over time and was slightly alkaline. Comfort-DA II showed significantly elevated mechanical and chemical properties, comparing to Comfort-DA. The results also indicate that orthogonal design may be an efficacious way to develop new dental materials.

Keywords

denture adhesive / bonding load / mechanical and chemical property

References

[1] Nicolas E., Veyrune J.I., Lassauzay C. A Six-month Assessment of Oral Health-related Quality of Life of Complete Denture Wearers Using Denture Adhesive: A Pilot Study [J]. J. Prosthodont., 2010, 19: 1-6.

[2] Psillakis J.J., Wright R.F., Grbic J.T., Lamster I.B. In Practice Evaluation of a Denture Adhesive Using a Gnathometer [J]. J. Prosthodont., 2004, 13: 244-2450.

[3] Grasso J.E. Denture Adhesives [J]. Dent. Clin. N. Am., 2004, 48: 721-733.

[4] Wang Y.B., Chen Y.Y. Adhesive-mediated Enhancement of Occlusal Force Measurements in Patients with Existing and New Complete Dentures: a Pilot Study [J]. Int. J. Prosthodont., 2010, 23: 155-157.

[5] Slaughter A., Katz R.V., Grasso J.E. Professional Attitudes Toward Denture Adhesives: A Delphi Technique Survey of Academic Prosthodontists [J]. J. Prosthet. Dent., 1999, 82: 80-89.

[6] Ozcan M., Kulak Y., de Baat C., Arikan A., Ucankale M. The Effect of a New Denture Adhesive on Bite Force Until Denture Dislodgement [J]. J. Prosthodont., 2005, 14: 122-126.

[7] Shigli K. Aftercare of the Complete Denture Patient [J]. J. Prosthodont., 2009, 18: 688-693.

[8] Pradies G., Sanz I., Evans O., Martinez F., Sanz M. Clinical Study Comparing the Efficacy of Two Denture Adhesives in Complete Denture Patients [J]. Int. J. Prosthodont., 2009, 22: 361-367.

[9] De Baat C., van’t Hof M., van Zeghbroeck L., Ozcan M., Kalk W. An International Multicenter Study on the Effectiveness of a Denture Adhesive in Maxillary Dentures Using Disposable Gnathometers [J]. Clin. Oral. Invest., 2007, 11: 237-243.

[10] Kulak Y., Ozcan M., Arikan A. Subjective Assessment by Patients of the Efficiency of Two Denture Adhesive Pastes [J]. J. Prosthodont., 2005, 14: 248-252.

[11] Adisman I.K. The Use of Denture Adhesives as an Aid to Denture Treatment [J]. J.Prosthet. Dent., 1989, 62: 711-715.

[12] Shay K. Denture Adhesives: Choosing the Right Powders and Pastes [J]. J. Am. Dent. Assoc., 1991, 122: 70-76.

[13] Coats A.J. Usage of Denture Adhesives [J]. J. Dent., 2000, 28: 137-140.

[14] Stafford G.D., Russell C. Efficiency of Denture Adhesives and Their Possible Influence on Oral Microorganisms [J]. J. Dent. Res., 1971, 50: 832-836.

[15] Tarbet W.J., Grossman E. Observation of Denture -supporting Tissue during Six Months of Denture Adhesive Wearing [J]. J. Am. Dent. Assoc., 1980, 101: 789-791.

[16] Makihira S., Nikawa H., Satonobu S.V., Jin C., Hamada T. Growth of Candida Species on Commercial Denture Adhesive in Vitro [J]. Int. J. Prosthodont., 2001, 14: 48-52.

[17] Devengencie J., Ng M.C., Ford P., Iacopino A.M. In vitro Evaluation of Denture Adhesives: Possible Efficacy of Complex Carbohydrates [J]. Int. J. Prosthodont., 1997, 10: 61-72.

[18] Ellis B.S., Al-Nakash R., Lamb D.J. The Composition and Rheology of Denture Adhesives [J]. J. Dent., 1980, 8: 109-118.

[19] Zhao K., Cheng X.R., Li Z.A., Yi A.H., Ma L. Development and Property Test of Synthetic Macromolecular Resin Class of Comfort Denture Adhesive [J]. Chin. J. Stomatol., 2002, 37: 150-152.

[20] Zhao K., Cheng X.R., Chao Y.L., Li Z.A., Han G.L. Laboratory Evaluation of a New Denture Adhesive [J]. Dent. Mater., 2004, 20: 419-424.

[21] Lamb D.J. The Effect of Karaya Gum on Tooth Enamel [J]. Brit. Dent. J., 1981, 150: 250-252.

[22] Love W.B., Biswas S. Denture Adhesives: pH and Buffering Capacity [J]. J. Prosthet. Dent., 1991, 66: 356-360.