Metal allergy as a persistent factor for psoriasis.

Purpose: Psoriasis is a complex, chronic inflammatory keratosis of unclear origin that is challenging to treat. In patients with psoriasis suspected of having metal allergies, the removal of oral metallic prostheses contributes to the alleviation of psoriasis symptoms. However, the relationship and mechanism of the metal removal effect and improvement in psoriasis symptoms in patients with metal allergies are unknown.

Allergic reaction to titanium-made fixed dental restorations: A clinical report .

From the mid 1980s (approximately 10 years after titanium was first used as a medical metal), reports of suspected Ti sensitization began to emerge. In the present report,a 33-year-old Japanese woman presented with pruritus of the fingers and a specific reaction to mercury, nickel, and silver on lymphocyte stimulation testing (LST).Her condition improved after 17 restorations containing Hg or Ag were removed.

Suspected association of an allergic reaction with titanium dental implants: a clinical report.

Recent reports have questioned whether metal sensitivity may occur after exposure to titanium. This clinical report demonstrates the emergence of facial eczema in association with a titanium dental implant placed for a mandibular overdenture supported by 2 implants. Complete remission was achieved by the removal of the titanium material.