[Influence of bacterial plaque disclosing agents on patient oral hygiene motivation under direct supervision and direction]. / Estudo clínico da influênçia dos evidenciadores de placa bacteriana na motivação de pacientes à higiene bucal sob supervisão e orientação direta.

Research was carried out with the objective of studying the clinical influence of dental plaque disclosing agents as motivators for patients oral hygiene. Methylene blue, basic fuchsin, Bismark brown, malachite green, and gentian violet were used for dental plaque disclosure. Five groups were evaluated, 12 patients each, besides a control group of 12 patients. The experimental period analysed statistically was of approximately 7 weeks. The statistical analysis of the results proved not to have significant differences among the 6 groups analysed.

[The duration and efficiency of toothbrushing in 4- to 6-year old children]. / Estudo clínico experimental relativo à duração e eficiência da escovação dentaria em crianças de 4 a 6 anos de idade.

The purpose of this study was to establish a practical and effective toothbrushing time for the pre-schoolchildren, by answering a very frequent questions made by the responsible for the young patients. 120 children brushed their teeth under supervision for predetermined times of 3, 5, 8 and 10 min. No specific technique was recommended. Oral hygiene indexes were scored prior to the brushing procedure. Although the 8 and 10 min. brushing times were effective in removing debris from the surface of the teeth they proved to be detrimental to the integrity of gingival tissues. The 3 min. brushing period was insufficient, while the 5 min. period was highly safe and effective. It was recommended that for the success of oral hygiene for the pre-schoolchild, the teeth should be brushed for 5 min. under supervision at least once a day.

Estudo clinico e histologico comparativo, em gengiva humana, da tecnica de sutura continua com duas agulhas em alca, com a tecnica de sutura interrompida interproximal. / Clinical and histological comparative study in human gingiva of the continuos suturing technic with two needles in loop with the interrupted interproximal suturing technic

Um estudo comparativo em gengiva humana foi realizado utilizando duas tecnicas de sutura: uma classica interrompida interproximal e outra continua com duas agulhas em alca. As diferencas clinicas observadas baseiam-se na melhor adaptacao obtida com o retalho e nas melhores condicoes de trabalho determinadas pela maior rapidez e maior facilidade na remocao do cimento cirurgico conseguidas com a tecnica de sutura continua. A analise da saude gengival no periodo de tres meses, alem de outros aspectos clinicos estudados nao puderam demonstrar diferencas apreciaveis existentes entre estas duas tecnicas. Os resultados histologicos demonstraram um mesmo padrao de reparacao, se bem que maturacao tecidual mais precoce e menor grau de inflamacao foram observados no lado em que utilizamos a tecnica continua com duas agulhas