Understanding the Adhesion Mechanism of Conventional Denture Adhesives
Khadivi, Nona.
2017
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Abstract: Denture
adhesives are widely used to avoid the detachment and sliding of dentures. However,
their adhesion properties can be affected by variation in mouth condition and underlying
conditions such as level of salivation. The objective of this study is to understand the
mechanisms governing the properties of a commercially available denture adhesive and
identifying the reasons for th... read moree observed variation in its adhesion strength. In vitro
models mimicking the denture gingival interface are designed to evaluate the performance
of the adhesive. Changes in adhesion strength in response to three major factors related
to the oral conditions including level of salivation, pH, and temperature are measured.
The results of lap-shear, tensile test and internal interactions suggested a cohesion
failure, where the lowest adhesion strength was due to hyposalivation. Fourier transform
infrared spectroscopy (FTIR) and rheological analysis confirmed various involved
mechanisms in governing the adhesion characteristics of the paste. We observed that the
incorporation of tripropylene glycol methyl ether (TPME) to enhance hydrogen bonding
could significantly improve adhesion in hyposalivation
scenario.
Thesis (M.S.)--Tufts University, 2017.
Submitted to the Dept. of Biomedical Engineering.
Advisor: Irene Georgakoudi.
Committee: Irene Georgakoudi, David Kaplan, and Ali Tamayol.
Keywords: Biomedical engineering, and Dentistry.read less - ID:
- 02871740h
- Component ID:
- tufts:23398
- To Cite:
- DCA Citation Guide EndNote
