Intolerance reaction to the materials of the denture.
First of all, the dentist must check the accuracy of fit of the prosthesis. About 1-2% of all patients who are fitted with a denture are still accustomed to the new denture after three months. In addition to the accuracy of fit of the prosthesis, sensitization to the prosthesis material must be ruled out in these patients.
Dentures as a dental prosthesis can also become incompatible if a thorough denture care is not carried out daily, because the care of the dentures is important for a good denture compatibility.
Denture compatibility is not always given, because a "material-related denture intolerance" can cause taste disturbances, tongue burning or mucous membrane burning as well as other symptoms.
Oral care and denture cleaning is important for denture compatibility, otherwise pressure points can be caused by dentures, because plaque and tartar can also accumulate on dentures. What is usually referred to in the vernacular as "denture problems" or "denture fits poorly" as well as "problems with dentures", by which is meant wearing dentures and the dentist refers to this as denture intolerance or incompatibility of dentures.
In rarer cases, there may also be true sensitization to denture materials. In these patients, an epicutaneous test (klaaic epicutaneous patch test) with denture materials can be performed.
Alternatively, in individual cases, testing of the allergen in question on the mucosa is an option. This requires an adapted prosthesis with small patch areas in which the allergen to be tested can be apllied (see figure).