[Periodontal disease in juvenile diabetics and non-diabetics]. / Enfermedad periodontal en diabéticos juveniles y no diabéticos.

BACKGROUND: Knowing the prevalence of periodontal disease, to identify some associated variables in youth population. Insulin dependent diabetes mellitus (DMID) has been included as a common variable. METHODS: Cross-sectional study over 383 individuals, 11 to 18 years old. Chi square and Odds ratio (95% confidence limits) have been determined. RESULTS: Periodontal disease prevalence is 37.53%. An epidemiological and statistical association were found with: Insulin-dependent diabetes mellitus, low social class, poor dental hygiene and plaque index over 0.20. CONCLUSIONS: Juvenile diabetic population must be considered as a high risk group for periodontal disease.

Analysis of several risks factors involved in dental caries through multiple logistic regression.

Through multiple logistic regression an epidemiological study was undertaken of the following factors: age, gender, socio-economic status, dental care, toothbrushing, chewing gum, snacking, fluoride, and of their influence on the development of tooth decay. The factors are analysed individually and globally (global model). An initial model was constructed, establishing the interactions, and developing a final model. Risk factors shown to be involved were: low social class status, lack of dental care in the previous 12 months, absence of toothbrushing, and belonging to the age group 9-12 years old. An interaction was established between the following variables: socio-economic status and toothbrushing, and dental care and age.

[Dental caries: age, income level and dental care]. / Caries dental: edad, nivel de ingresos y atención odontológica.

We have studied a population of 527 school children between 6 and 17 years old, having as main characteristic to have free odontological care. The prevalence of caries found was 40.4%. The age appears as a risk factor. However, we have not found any influence in the social status. The odontological care is considered essential in the decrease of prevalence of dental caries.

[Prevalence of tooth discoloration from tetracycline in a school population]. / Prevalencia de tinciones dentales por tetraciclinas en una población escolar.

We have made a transversal study in a population of 910 scholars from Madrid with the purpose of knowing the prevalence to tetracycline-stained, and we have found a 3.11% of children affected. We have referred study by age, sex, socioeconomic level and dental caries.

[Bacterial localization in apical cementum at the epithelial insertion using scanning electron microscopy]. / Localización bacteriana en el cemento apical a la inserción epitelial con microscopio electrónico de barrido.

Extracted teeth due to consequence of chronic periodontitis of adult are fractured and the apical cementum to junction epithelium is examined under S.E.M. (scanning electron microscopy) being found bacterias forms inside niches of the apical cementum.