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This study is a cross-sectional report of oral mucosal lesions in 23785 patients more than 15 years of age who requested elective dental care in a dental school. Among the patients examined, the general lesion rate was 356.60 lesions per 1000 patients. Sixty-eight entities were identified, the lesions being more common among males. White, red, and ulcerated lesions were seen to predominate, associated mostly with chronic irritative causative factors. The prevalence rates of individual oral mucosal lesions ranged from 0.55 to 105.36 per 1000 patients examined. Age and sex assessment showed some differences in the type and presentation rates of the lesions. These and other epidemiological aspects are discussed.

Tuberculosis is a potentially fatal infectious disease. Although it typically manifests in populations subjected to crowding and living in poor conditions of hygiene, in the past decade the morbidity and mortality associated to pulmonary tuberculosis has increased throughout the world--particularly due to the appearance of strains resistant to a range of drugs, and to the vulnerability of human immunodeficiency virus (HIV)-positive individuals to tuberculosis infection. In this context, dental professionals should implement schemes and protocols designed to identify patients with lung tuberculosis, in order to both refer such patients to specialized medical care and to avoid infection of the dental personnel and other patients. A review is made of the etiology, pathogenesis, clinical manifestations, diagnosis and treatment of patients with pulmonary tuberculosis, with particular emphasis on the management measures indicated in the dental clinic.

To our Knowledge, this is the first work in a number population (higher than 500 sample WHO) that is carried out in our country about lesions in the Oral Mucosa. The advantages in this Kind of studies are recognized particularly in the fields of academic, research and services. This work presents the first view of a permanent research project of Oral Mucosa Lesions at the admission clinic, School of Dentistry, Universidad del Bajío. The findings are from the evaluation of 7,297 patients, 15 years or older, that seek dental services between January 1982 and June 1989 (7.5 years). The lack of national data and the oldest population samples in other countries studies stopped wider evaluations, even though the study purpose was not affected, it was possible to offer qualitative data in the respect of prevalecence, variety and etiopathogenesis of those type of pathosis in the Oral Mucosa. The general prevalecence in the group was approximately 13%, identifying lesions more frequently in males, but higher variety in females. Report on 40 different entities, presented in general according to a descent order of prevalencece and reagrouped by sex and pathology. In half the lesions was possible to identify as the cause, acute and cronic traumatic agents; The infectious associations were also very frequent. Those last observations are of high relevance concerning the prevention of Oral Mucosa lesions.

A description is made of occlusal, articular and craniomandibular alterations that become present in the advance adult and old age and in some way they induce to the implementation of preventive and curative aspects from early stages or specific in posterior ages.