In situ remineralisation of enamel and dentin after the use of an amine fluoride mouthrinse in addition to twice daily brushings with amine fluoride toothpaste. 2010

A M G A Laheij, and A J P van Strijp, and C van Loveren
Department of Cariology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University, Amsterdam, The Netherlands. a.lahey@acta.nl

It is often claimed that 3 fluoride moments a day significantly reduce the caries risk compared to 2 daily fluoride moments. However, previous research is not conclusive. Therefore, the aim of this study was to compare the effect on lesion progression of 2 versus 3 fluoride moments a day. A double-blind, randomized, cross-over in situ experiment was designed. The experiment comprised 2 in situ periods of 3 weeks with a washout period of 3 weeks in between. Sixteen participants wore an enamel and a dentine specimen with a preformed lesion placed buccally in their partial prosthesis. The participants brushed twice a day with a 1,400 ppm F (amine fluoride) toothpaste and rinsed once a day with either 250 ppm F (amine F/NaF) or a placebo rinse. At the end of the experiment the specimens were retrieved for fluoride analysis and the assessment of integrated mineral loss with transversal microradiography. The fluoride analysis showed a statistically significant increase in structurally bound fluoride in dentine, but not in enamel, when comparing the fluoride mouthrinse group with the placebo rinse group. The amounts of loosely bound, KOH-soluble fluoride were not different between both groups neither for enamel nor for dentine. In dentine IML gain was significantly (p < 0.05) higher for the fluoride mouthrinse group than for the placebo mouthrinse group. In enamel no statistically significant differences in IML gain were found. For dentine a third fluoride moment may be beneficial in enhancing remineralisation, even under the remineralising conditions as in this study.

UI MeSH Term Description Entries
D008852 Microradiography Production of a radiographic image of a small or very thin object on fine-grained photographic film under conditions which permit subsequent microscopic examination or enlargement of the radiograph at linear magnifications of up to several hundred and with a resolution approaching the resolving power of the photographic emulsion (about 1000 lines per millimeter). Microradiographies
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009067 Mouthwashes Solutions for rinsing the mouth, possessing cleansing, germicidal, or palliative properties. (From Boucher's Clinical Dental Terminology, 4th ed) Mouth Bath,Mouth Rinse,Mouth Wash,Bath, Mouth,Baths, Mouth,Mouth Baths,Mouth Rinses,Rinse, Mouth,Rinses, Mouth,Wash, Mouth
D002327 Cariostatic Agents Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed) Cariostatic Effect,Cariostatic Effects,Agent, Cariostatic,Agents, Cariostatic,Cariostatic Agent,Effect, Cariostatic,Effects, Cariostatic
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D003731 Dental Caries Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. Caries, Dental,Carious Lesions,Dental Cavities,Dental Cavity,Dental Decay,Dental White Spots,Carious Dentin,Decay, Dental,Dental White Spot,White Spot, Dental,White Spots, Dental,Carious Dentins,Carious Lesion,Cavities, Dental,Cavity, Dental,Dentin, Carious,Dentins, Carious,Lesion, Carious,Lesions, Carious,Spot, Dental White,Spots, Dental White
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
D003804 Dentin The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992) Dentine,Dentines,Dentins
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004311 Double-Blind Method A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment. Double-Masked Study,Double-Blind Study,Double-Masked Method,Double Blind Method,Double Blind Study,Double Masked Method,Double Masked Study,Double-Blind Methods,Double-Blind Studies,Double-Masked Methods,Double-Masked Studies,Method, Double-Blind,Method, Double-Masked,Methods, Double-Blind,Methods, Double-Masked,Studies, Double-Blind,Studies, Double-Masked,Study, Double-Blind,Study, Double-Masked

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