Evaluation of the physical properties of a newly developed denture adhesive for patients with dry mouth

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  • Ohno Tomohisa
    Department for Advanced Dental Research, Center for Development of Advanced Medicine for Dental and Oral Diseases, Japanese National Center for Geriatrics and Gerontology
  • Itatsu Ryoko
    Division of Oral and Dental Surgery, Department of Advanced Medicine, Japanese National Center for Geriatrics and Gerontology
  • Moriya Megumi
    Division of Oral and Dental Surgery, Department of Advanced Medicine, Japanese National Center for Geriatrics and Gerontology
  • Sato Yuji
    Department of Geriatric Dentistry, Showa University, School of Dentistry
  • Sumi Yasunori
    Department for Advanced Dental Research, Center for Development of Advanced Medicine for Dental and Oral Diseases, Japanese National Center for Geriatrics and Gerontology

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Abstract

<p>Purpose: Elderly individuals with dry mouth wearing dentures require an appropriate denture adhesive. The purpose of this study was to evaluate the in vitro properties of a newly developed denture adhesive for patients with dry mouth and compare these with those of a currently available adhesive and oral moisturizing agent.</p><p>Methods: We developed a new gel-type denture adhesive with physical properties suitable for patients with dry mouth (DM). We subsequently performed in vitro comparisons among DM, New Poligrip (NP), and Biotene Oralbalance Gel (BT) with regard to the following properties: retention force, resistance to squeezing, and ease of removal. In accordance with the standards of the International Organization for Standardization (ISO10873:2010), the retention force was measured for dry samples (no water exposure, severe dry mouth model) and for samples exposed to water for 10 min (normal model) and 1 min (moderate dry mouth model). The resistance to squeezing was evaluated by pushing the samples out of syringes, while the ease of removal was evaluated by measuring the time required to wash the material from a polymethyl methacrylate plate.</p><p>Results: In the severe dry mouth model, DM exhibited greater retention force than did NP and BT. Moreover, the resistance to squeezing was significantly lower for DM than for NP. Both BT and DM showed better ease of removal than did NP. NP was the most difficult to wash out with water.</p><p>Conclusions: Our findings suggest that the newly developed denture adhesive DM is suitable for use in patients with dry mouth.</p>

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