Enamel fluoride concentrations in unerupted third molars and the influence of fluoridated water on caries scores. 1996

W Mestriner, and A C Polizello, and A C Spadaro
Faculty of Dentistry, USP, São Paulo, Brazil.

Enamel fluoride concentrations in buccal and lingual surfaces were determined in successive layers obtained by the acid etch method. The 48 unerupted third molar teeth were from subjects who had lived continuously since birth in two Brazilian towns (Barretos and Ribeirão Pr-eto) with different fluoride levels in the drinking water but with similar socioeconomic conditions. The DMFT index was determined for children 7-12 years old living in the two towns. Enamel fluoride concentrations were significantly higher in the teeth from the town with higher fluoride levels in drinking water. The children residing in the community with near-optimum fluoride concentration in the water had mean DMFT scores that were less than half those found in the community with a low level of fluoride in the drinking water.

UI MeSH Term Description Entries
D008297 Male Males
D008964 Molar, Third The aftermost permanent tooth on each side in the maxilla and mandible. Tooth, Wisdom,Teeth, Wisdom,Molars, Third,Third Molar,Third Molars,Wisdom Teeth,Wisdom Tooth
D001938 Brazil A country located on the eastern coast of South America, located between Colombia and Peru, that borders the Atlantic Ocean. It is bordered on the north by Venezuela, Guyana, Suriname, and French Guiana, on the south by Uruguay, and on the west by Argentina. The capital is Brasilia.
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003743 Dental Enamel A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (From Jablonski, Dictionary of Dentistry, 1992, p286) Enamel,Enamel Cuticle,Dental Enamels,Enamel, Dental,Enamels, Dental,Cuticle, Enamel,Cuticles, Enamel,Enamel Cuticles,Enamels
D004245 DMF Index "Decayed, missing and filled teeth," a routinely used statistical concept in dentistry. Decayed, Missing, and Filled Teeth,DMF Indexes,DMF Indexe,DMF Indices,Index, DMF,Indexe, DMF,Indexes, DMF,Indices, DMF
D005260 Female Females
D005459 Fluorides Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices. Fluoride
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000134 Acid Etching, Dental Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration. Dental Acid Etching,Etching, Dental Acid

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