Study on frequency of dental developmental alterations in a Mexican school-based population.

BACKGROUND: The aim of this study was to know the distribution of dental developmental alterations in the population requesting stomatological attention at the Admission and Diagnosis Clinic of our institution in Mexico City. MATERIAL AND METHODS: We reviewed the archives and selected those files with developmental dental alterations. Analyzed data were diagnoses, age, gender, location and number of involved teeth. RESULTS: Of the 3.522 patients reviewed, 179 (5.1%) harbored 394 developmental dental alterations. Of them, 45.2% were males and 54.8% were females with a mean age of 16.7 years. The most common were supernumeraries, dental agenesia and dilaceration. Adults were 30.7% of the patients with dental developmental alterations. In them, the most common lesions were agenesia and supernumeraries. Mesiodens was the most frequently found supernumerary teeth (14.7%). CONCLUSIONS: Our finding that 30.7% of the affected patients were adults is an undescribed and unusually high proportion of patients that have implications on planning and prognosis of their stomatological treatment.

Pathological findings in a sample of Mexican pediatric patients. Clinical and radiographic survey.

AIM: The findings of a clinical-radiological review of 467 children attending the Oral Diagnosis Clinic of the Facultad de Odontología, UNAM, Mexico, are presented. METHODS: All patients were clinically reviewed, clinical history was taken, and an orthopantomogram obtained by last year dentistry students. Patients and radiographs were then reviewed by the panel and all alterations in teeth, soft tissues and bone were recorded. RESULTS: Clinical and/or radiographic alterations were found in 132 (28.26%) children. The main alterations were developmental (75%) and inflammatory/infectious and traumatic (6.06% each). The most common entities were: supernumeraries (30.77%); hypodontia (29.7%); osteosclerotic lesions and microdontia (4.4% each). CONCLUSION: The data on the frequency of alterations in the pediatric population attending at our institution reinforce the importance of this kind of study in efforts to improve the quality of stomatologic services in the pediatric population.