The digital photographic method is a useful tool for assessing the quality of dental restorations, providing information that goes unnoticed with the visual-tactile clinical examination method. Additionally, when analyzing restorations using the Ryge modified criteria, the digital photographic method reveals a significant increase of defects compared to those clinically observed with the naked eye. Photography by itself, without the need for enlargement or correction, provides more information than clinical examination and can lead to unnecessary overtreatment.
Objetivo: El objetivo de este estudio transversal fue evaluar el estado de salud oral y cuantificar la prevalencia de caries dental, pérdida de dientes y necesidad de tratamiento en la población adulta de etnia Mapuche-Huilliche que habita la Isla Huapi. Método: Se examinó una muestra representativa de 64 habitantes adultos de la Isla Huapi, constituida por 31 hombres y 33 mujeres de entre 25 a 82 años de edad, que tenían a lo menos un apellido de origen Mapuche-Huilliche. Todos los individuos, previa firma de un consentimiento informado, fueron examinados por un solo dentista calibrado durante el mes de agosto 2009. Los datos fueron registrados en una ficha diseñada especialmente y analizados estadísticamente usando los test T de Student y ANOVA. Resultados: El promedio del índice COPD de la muestra fue 14.59. Todos los individuos tenían historia de caries. De los que conservaban dientes, el 71.43% tenían caries sin tratar, con un promedio de 1.25. El 98.43% de los individuos de la muestra presentaban algún grado de desdentamiento, el 12.5% eran edéntulos. El 100% de la población necesitaba atención odontológica, ya fuera para operatoria o prótesis. Conclusiones: Esta población presenta un gran daño en cuanto a su salud oral, especialmente debido a pérdida de dientes. La magnitud del daño e importancia del entorno social como determinante en la generación de éste, obliga a enfrentar el problema y buscar soluciones desarrollando y aplicando programas gubernamentales de promoción y atención en salud oral a toda la población.
The aim of this study was to compare the bleaching efficacy of 35% hydrogen peroxide and 15% hydrogen peroxide with nitrogen-doped titanium dioxide catalysed by an LEDlaser hybrid light. We studied 70 patients randomized to two groups. Tooth shade and pulpal sensitivity were registered. Group 1: 15% hydrogen peroxide with nitrogen-doped titanium dioxide. Group 2: 35% hydrogen peroxide. Both groups were activated by an LED-laser light. No significant differences were seen in shade change immediately, one week or one month after treatment (p > 0.05). Differences were seen in pulpal sensitivity (p < 0.05). The use of an LEDlaser hybrid light to activate 15% hydrogen peroxide gel with N_TiO 2 permits decreasing the peroxide concentration with similar aesthetic results and less pulpal sensitivity than using 35% hydrogen peroxide for bleaching teeth.
The aim of the present work was to study the usefulness of disodium monofluorphosphate (MFP) as a milk-fluoridating agent by measuring the bioavailability of F from MFP in milk relative to that of F from NaF in water. Long-term (multiple-dose) studies were performed on rats measuring F bone uptake. The relative F absorption from MFP in milk was also determined in preschool children by means of 24-hour F urinary excretion. In both studies F absorption was determined either under fasting conditions or when F ingestion occurred together with food intake. The results show that F absorption from MFP in milk is as high as that of NaF in water under fasting conditions and that the F bioavailability decrease from NaF in water is more important than that of MFP in milk when F ingestion occurs simultaneously with food intake.
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