To explore the relationship between psychological factors and recurrent aphthous ulcer (RAU), oral lichen planus (OLP), and burning mouth syndrome (BMS) and to provide a reference for clinical diagnosis and treatment of the disease.

From July to October 2018, 50 patients with common RAU, refractory RAU, OLP and BMS were selected as the observation group, and 50 healthy participants without major systemic diseases and oral mucosal diseases matched for age and sex served as the control group. The psychological status of the subjects in each group was investigated by questionnaires, including the generalized anxiety disorder 7-item scale(GAD-7) and the patient health questionnaire-9 (PHQ-9).

Compared with the control group, the PHQ-9 scores in the refractory RAU, common RAU, OLP and BMS groups were higher than those in the control group (P < 0.05), and the GAD-7 scores in the refractory RAU, OLP and BMS groups were higher than those in the control group (P < 0.05). In the RAU group, the GAD-7 score of intractable RAU was higher than that of common RAU (P < 0.05), and there was no significant difference in the PHQ-9 score (P > 0.05).

RAU, OLP and BMS are common psychosomatic diseases presented by patients in the Department of Oral Mucosal Diseases. Their occurrence and development are related to the psychological status of patients. A tendency toward anxiety is significantly more common among refractory RAU patients than common RAU patients.

To investigate the pathogenic factors and clinical manifestations of contact stomatitis, and to provide references for its clinical diagnosis and prevention.

The data of 55 subjects with contact stomatitis were analyzed retrospectively, including age, gender, pathogenic factors, type of lesions and site of occurrence.

Among the 55 patients, contact stomatitis occurred at all ages, 19 were male, 36 were female, and the ratio of males to females was 1∶1.89. Among 55 patients, 78.18% (43/55)were caused by oral mucosal contact with dental materials: amalgam fillings accounted for 52.73% (29/55), metal crowns accounted for 9.09% (5/55), removable denture plastic bases accounted for 9.09% (5/55), resin fillings accounted for 5.45% (3/55), and alginate impression materials accounted for 1.82% (1/55); 21.82% (12/55) were caused by oral mucosal contact with food and daily necessities. The clinical manifestations of contact stomatitis include lichenoid reaction, erythema and erosion. The most common site of contact stomatitis was the cheek, followed by the tongue, and the lips, and the gingival and palatal areas were relatively rare. In the buccal mucosa, the incidence of lichenoid reaction was 55% (22/40), which was higher than that of erosion (20%) and erythema (25%), and the difference was statistically significant (P < 0.05). For tongue, lip, gingiva and palate, there was no significant difference in the incidence of the three lesion types (P > 0.05).

Contact stomatitis occurred at all ages, and there are more female patients than males with contact stomatitis. Dental materials, especially metal and acrylic materials (such as the plastic base of removable dentures, resin fillings, adhesives, and self-setting plastics), are the main pathogenic factors. In buccal mucosa, the incidence of lichenoid reaction is higher.

To explore the etiology, clinical manifestations, diagnosis and treatment of verruciform xanthoma (VX) in adolescents to provide a reference for clinical diagnosis and treatment.

The clinical data of a case of a palatal mass in a juvenile were analyzed, and the related literature was reviewed.

The palatal mass was proven to be VX by histopathological examination. Surgical resection was performed, and the prognosis was good. A review of the literature shows that VX is a rare benign mucosal skin lesion of an unknown etiology, with an incidence of approximately 0.025%-0.094%; VX is mostly found in middle-aged people, with no significant difference by sex. The clinical manifestations are similar to those of a variety of diseases, such as squamous papilloma, verruca vulgaris, fibroma, warty carcinoma and squamous cell carcinoma, which are not easy to distinguish and require histopathological diagnosis. The treatment of choice is surgical excision, with a low recurrence rate.

In the clinical experience of solitary mucosal masses in juveniles, it is necessary to send biopsy for pathological examination and avoid overtreatment.