Available online 7 December 2018
Abstract
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.
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.
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.
Conclusions
Our findings suggest that the newly developed denture adhesive DM is suitable for use in patients with dry mouth.
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