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Related Experiment Videos

Alcohol-containing mouthwashes: effect on composite hardness

B Penugonda1, L Settembrini, W Scherer

  • 1New York University College of Dentistry.

The Journal of Clinical Dentistry
|January 1, 1994
PubMed
Summary

Alcohol-containing mouthwashes can negatively impact composite resin hardness. Higher alcohol percentages in mouthwash solutions lead to greater softening effects on dental composites.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Research
  • Oral Health Product Efficacy

Background:

  • Composite resins are widely used in dental restorations.
  • The long-term stability of composite resins in oral environments is crucial.
  • Alcohol-based mouthwashes are common oral hygiene products.

Purpose of the Study:

  • To investigate the effect of alcohol-containing mouthwashes on the hardness of hybrid composite resins.
  • To determine if a correlation exists between alcohol concentration and composite resin softening.

Main Methods:

  • Eighty hybrid composite discs were prepared and divided into eight groups.
  • Groups were immersed daily for six months in specific mouthwash solutions or water (control).
  • Barcol hardness measurements were taken at the center and periphery at baseline and after six months.

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Main Results:

  • Significant differences in composite resin hardness were observed between groups.
  • Mouthwashes containing alcohol demonstrated a softening effect on the composite discs.
  • The degree of softening correlated directly with the percentage of alcohol in the mouthwash.

Conclusions:

  • Alcohol content in mouthwashes can adversely affect the hardness of composite resins.
  • This effect may compromise the longevity and integrity of dental restorations.
  • Clinicians should consider the potential impact of alcohol-based mouthwashes on composite restorations.