Poly (hydroxyethyl methacrylate) Saliva-Gel: A Polymer-Based Solution for Xerostomia Treatment

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Oral Medicine

Background:

• Dry mouth (xerostomia) significantly impacts swallowing, speech, and oral hygiene.
• Current xerostomia treatments offer only temporary relief or are invasive.

Purpose of the Study:

• To develop a non-invasive, biocompatible saliva-gel using poly(hydroxyethyl methacrylate) (PHEMA) for xerostomia treatment.
• To emulate natural salivary secretion properties for sustained oral moisture.
• To assess the swelling, saliva retention, and release characteristics of the PHEMA-based gel.

Main Methods:

• Fabrication of a PHEMA-based saliva-gel.
• Evaluation of the gel's swelling capacity and artificial saliva absorption.
• Measurement of artificial saliva release rate at body temperature.
• Assessment of gel reusability over multiple cycles.

Main Results:

• The saliva-gel achieved approximately 400% swelling within 6 hours.
• It demonstrated a high artificial saliva release efficiency of 97% within 4 hours at body temperature.
• The gel maintained consistent performance over five absorption-release cycles, indicating reusability.

Conclusions:

• The developed PHEMA saliva-gel shows significant potential as a non-invasive therapeutic for xerostomia.
• Its properties align with the goal of providing timely and sustained relief from dry mouth symptoms.
• The material's biocompatibility and reusability support its clinical applicability.