Cleanser solution effects on denture base resins: Electronmicroscopic investigation

Area of Science:

• Materials Science
• Biomaterials Engineering
• Dental Prosthetics

Background:

• Denture base resins require regular cleaning to maintain hygiene.
• Oxygen-liberating denture cleansers are widely used for denture maintenance.
• Understanding the interaction between cleansers and denture materials is crucial for long-term prosthesis success.

Purpose of the Study:

• To investigate morphostructural changes on denture base resin surfaces after exposure to oxygen-liberating denture cleansers.
• To assess the impact of resin processing quality on surface alterations.
• To identify and characterize deposits formed on denture resins post-immersion.

Main Methods:

• Scanning electron microscopy (SEM) was employed to examine resin surface topography.
• Denture base resin samples were immersed in commercially available oxygen-liberating denture cleansers.
• Surface characteristics and deposit formation were analyzed qualitatively and quantitatively.

Main Results:

• Properly processed denture resins exhibited no significant corrosive effects.
• Improperly processed wet-mix acrylates showed inconsistent surface topography, suggesting reduced resistance.
• Deposits of varying characteristics were observed on resin surfaces despite thorough rinsing, dependent on the cleanser used.

Conclusions:

• Oxygen-liberating denture cleansers can lead to surface deposits on denture base resins.
• The quality of denture resin processing influences its susceptibility to surface alterations and deposit adhesion.
• The clinical significance of these deposits warrants further investigation.