ABSTRACT
Objetivos: Determinar la presencia y concentración de los metales plomo, cadmio y cromo migrados desde el limpiador lingual "Alitest" en saliva artificial, y estimar la exposición oral a estas sustancias. Material y métodos: Diseño pre-experimental y analítico, para cuantificar las sustancias que son liberadas desde el limpiador lingual al contacto con saliva artificial. Los metales fueron analizados por AAS. Se estimaron los valores de exposición por ingesta oral que fueron comparados con valores de ingesta diaria tolerable para cada grupo etario. Resultados: Se cuantificó la migración de cadmio y cromo en concentraciones promedio de 0.008mg/L y 0.437 mg/L, respectivamente. La concentración de plomo estuvo por debajo de los niveles detectables utilizando el método. A partir de estos valores se estimó la ingesta oral para cada grupo etario y se comparó con el valor provisional de ingesta mensual tolerable (PTMI) o Dosis de Referencia (RfD). Conclusiones: Las sustancias se cuantificaron en concentraciones normales, que no excedieron los valores máximos recomendados.
Objectives: To determine the concentration of heavy metals cadmium and chromium leached from the tongue cleaner "Alitest" into artificial saliva and to assess oral exposure of these substances. Material and methods: Analytical pre-experimental design, to determine the amount of those substances released from the tongue cleaner onto artificial saliva and to quantified them by AAS. Assessment of exposure from oral intake values and comparison with the Provisional Tolerable Monthly Intake (PTMI) or Reference Dose (RfD) values. Results: Cadmium and chromium leachated into artificial saliva were quantified in concentrations of 0.008mg/L and 0.437 mg/L, respectively. Lead concentration was under detectable levels using the method. These values were used to estimate the oral intake for each age group and were compared to PTMI or RfD values. Conclusions: The substances were found in normal concentrations, none exceeding the maximum values of PTMI or RfD.
ABSTRACT
PURPOSE: The aim of this study was to investigate the effect of tongue cleaner-equipped manual toothbrush on tooth cleanness, tongue cleanness and malodor index. MATERIALS AND METHODS: 504 subjects were included in this study. At 1st visit, basic information such as age, sex, smoking amount and alcohol consumption was recorded. Self assessment by individual subjects was performed regarding satisfaction to old toothbrush and toothbrushing habit. Tooth cleanness, tongue cleanness and malodor index was assessed by professional researcher. Tongue cleaner-equipped manual toothbrush was given to each subject with proper toothbrushing instruction. After 1 month passed, self assessment and researcher assessment regarding the same index were performed and analyzed statistically by chi-square test. RESULTS: At 1st visit subjects seem to ignore tongue cleansing and showed poor tooth cleanness index, tongue cleanness index and malodor index, however the same subjects were motivated to clean their tongue and teeth and presented statistically improved distribution pattern in tooth cleanness index, tongue cleanness index and malodor index after using tongue cleaner-equipped manual toothbrush(p<0.01). Satisfaction to tongue cleaner-equipped manual toothbrush was 98%. CONCLUSION: Tongue cleaner-equipped manual toothbrush would be an effective tool for maintaining good oral hygiene through improving tooth and tongue cleanness and preventing malodor formation.