Prevalence of Alcohol and Tobacco Use and Perceptions Regarding Prenatal Care among Pregnant Brazilian Women, 2017 to 2018: A Mixed-Methods Study.

Objective: To identify the prevalence of alcohol and tobacco drug use among pregnant women and investigate their perceptions regarding advice from health professionals during prenatal care.

Method: We used a sequential explanatory mixed-methods design for this cross-sectional study; the study period was January 2017 to December 2018. Multistage random sampling resulted in the selection of 255 pregnant women assisted in primary care units and through the Family Health Strategy in a city in southern Brazil.

Comparison of different methods involved in the planning of clinical crown lengthening surgery.

There is little material in the literature that compares biological width measurements in periapical and bite-wings radiographs with clinical measurements. The purpose of this study was to compare measurements of biological width taken by three different methods which are frequently used for planning periodontal surgery - periapical radiograph, bite-wing radiograph and transperiodontal probing - with the trans-surgical measurements. Thirty-four sites from twenty-one subjects were analyzed.

Dental anomalies in patients with Down syndrome.

The purpose of the present study was to evaluate the incidence of dental anomalies in Brazilian patients with Down syndrome. A sample with 49 panoramic x-rays of syndromic patients aged 3 to 33 years (22 male and 27 female) was used. The characteristics of dental anomalies were observed in the panoramic radiographs in both the primary and permanent dentition, according to the ICD (International Classification of Diseases).