[Contact allergy reactions to Silodent impression material]

Area of Science:

• Dental Materials Science
• Allergology
• Contact Dermatitis

Background:

• Silicon-based impression materials are widely utilized in dental practices for accurate prosthodontic and orthodontic applications.
• These materials offer advantages such as dimensional stability and ease of use, contributing to their popularity.

Observation:

• Two distinct cases of contact allergic reactions were documented following the application of Silodent (Ferrokémia), a specific silicon-based dental impression material.
• Patients presented with symptoms indicative of an allergic response after exposure to the material during dental procedures.

Findings:

• Epicutaneous patch testing identified the catalyst component within the Silodent material as the direct agent provoking the allergic contact dermatitis.
• The hypersensitivity reaction is presumed to result from prior sensitization, potentially from previous dental impression procedures or environmental exposures to similar allergens.

Implications:

• This finding highlights the importance of identifying specific allergens in dental materials, even those considered generally safe.
• Clinicians should be aware of potential catalyst-induced allergies with silicon-based impression materials like Silodent.
• Further investigation into the sensitizing potential of specific catalyst compounds in dental impression materials is warranted to improve patient safety.