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Circumoral dermatitis and cheilitis caused by tartar control dentifrices.

Twenty women had similar symptoms and clinical findings related to the use of tartar control toothpaste. Each had burning and itching around the corners of the mouth, followed by pruritic perioral patches of erythema 4 to 14 days later. All patients had begun using tartar control toothpaste 1 to 2 weeks before onset and had brushed their teeth at least three times per day. The typical findings included a moderately severe perioral erythema with fissuring of the angles of the mouth; scaling erythematous patches, separated by normal skin lateral to the initial erythema, were also present. No vesiculation or crusting was noted, and involvement of the gingiva and buccal mucosa was noted in only one case. On discontinuation of the tartar control toothpaste, marked improvement was seen within 1 to 6 weeks with, in most instances, either no treatment or 1% hydrocortisone cream.

Adult↗

Dentifrices.

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Dentifrices↗

Fluoride intake from foods, beverages and dentifrice by children in Mexico.

OBJECTIVES: This investigation monitored fluoride ingestion in Mexican children who were susceptible to developing dental fluorosis. METHODS: Total fluoride intake, from dietary and toothpaste samples, was determined in 15-36-month-old children from Mexico City and Veracruz, Mexico. A duplicate plate technique was used. Plasma fluoride levels were also determined in this group of children. RESULTS: The children ingested a mean (+/-SD) of 0.20 +/- 0.08 and 0.18 +/- 0.07 mg fluoride/kg/day, in Mexico City and Veracruz, respectively. There was no statistically significant difference between the fluoride ingested by children in the two cities (P > 0.9). Plasma from children in Mexico City and Veracruz contained a mean of 1.30 +/- 0.81 and 0.87 +/- 0.72 micro mol fluoride/l, respectively, and these values were not significantly different. CONCLUSIONS: Our results lead to the conclusion that mean fluoride ingested from the combination of foods and beverages was within the proposed safe threshold for fluoride intake of 0.05-0.07 mg F/kg/day. Most of the fluoride intake by these children was derived from the ingestion of fluoridated toothpaste. When all sources of ingested fluoride were added and total fluoride intake was calculated, the children, both in Mexico City and Veracruz, were ingesting amounts of fluoride well above the upper limits of the proposed safe threshold for fluoride intake.

Beverages↗