Introduction: Until recently "somatoform prosthesis intolerance" covered a wide range of patients with diffuse symptoms. Material and Methods: Meanwhile, new dental conditions have been established so that it is possible to differentiate among Burning Mouth Syndrome (BMS), atypical odontalgia (persisting [idiopathic] dental alveolar pain), occlusal dysesthesia, and somatoform prosthesis intolerance. These clinical pictures can be categorized under diagnosis of "somatic symptom disorders", which was newly established in 2015. It is marked by a duration of symptoms of more than 6 months, intense preoccupation with those symptoms, and a significantly reduced capability to cope with everyday life. The formerly used diagnosis "somatoform prosthesis intolerance" can likewise be understood as a subcategory of specific dental somatic symptom disorder. Conclusion: Based on available clinical experience it can be assumed that this diagnosis will be particularly applicable for patients that are equipped with objectively well-fitting fixed and/or removable dentures but experience difficulties with them and therefore attract attention with somatic stress symptoms. A structured approach is necessary for initial and basic treatment. This is described by the S3-guideline "functional disorders". Keywords: atypical odontalgia, burning mouth syndrome, functional disorders, occlusal dysesthesia, somatic stress disorder, somatoform prosthesis intolerance