[Dens in dente: report of 3 cases and review of the literature].

PURPOSE: To explore the diagnosis and clinical treatment of dens in dente. METHODS: Preventive resin restoration, root canal treatment, apical barrier technique and apexification were used to treat three cases of dens in dente, respectively. The curative effects were assessed by general examinations and imageological examinations during postoperative follow-up visits. RESULTS: Three patients with different type and degree of dens in dente achieved good therapeutic effect and favorable prognosis through different treatment methods. CONCLUSIONS: Dens in dente is complex clinically and the treatment is difficult. Clinicians should improve the understanding of dens in dente. The keys to successful treatment are early diagnosis and early treatment. In addition, it is important to take proper measures according to the type and degree of dens in dente, to preserve the diseased tooth as much as possible.

[Intramuscular type of nodular fasciitis: a report of 3 cases and review of literature].

PURPOSE: To retrospectively analyze the clinical characteristics of impacted supernumerary teeth in 115 patients. METHODS: One hundred and fifteen patients with im-pacted supernumerary teeth who were admitted to the Department of Oral and Max-illofacial Surgery of Hefei Stomatological Hospital were selected randomly. The age, sex, number of teeth, location, direction, clinical manifestation, anaes-thesia method and operation time were analyzed retrospectively, T test and Chi-square test were used to determine the statistical differences with SPSS 19.0 software package. RESULTS: Among 115 patients, there were 176 impacted supernu-merary, most of them were in mixed dentition period (66.96%), the sex ratio was 2.29:1, and Most patients (59.1%) had one supernumerary tooth, followed by two supernumerary teeth(33.9%). Most supernumerary teeth were located in the middle of the maxilla (68.2%). Inverted ones were the most common (52.8%). The most common symptoms were delayed eruption, displacement, crowding, torsion and space of the adjacent teeth. 92.2% of patients underwent general anesthesia. The dee-per the locations of impacted supernumerary were, the longer the operation time was. CONCLUSIONS: There are regional characteristics of supernumerary teeth in Hefei City, which can provide a reference for clinical diagnosis and treatment.