Fluoride profiles in different surfaces of human permanent molar enamels from a naturally fluoridated and a non-fluoridated area

Li, Jianxue; Nakagaki, Haruo; Tsuboi, Shinji; Kato, Shoichi; Huang, Siling; Mukai, Moe; Robinson, C.; Strong, M.

doi:10.1016/0003-9969(94)90101-5

Cited by 21 publications

(13 citation statements)

References 17 publications

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“…21 It should be noted that the surface enamel that is removed by bracket debonding contains the highest amount of fluoride. 22 Clinicians should be aware that although the amount of enamel loss may be small, permanent damage is introduced.…”

Section: Discussionmentioning

confidence: 99%

Enamel loss following ceramic bracket debonding: A quantitative analysis in vitro

Suliman

Trojan

Tantbirojn

et al. 2014

The Angle Orthodontist

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Objective: To measure enamel surface changes after ceramic bracket debonding and after cleanup. Materials and Methods: Forty extracted teeth were scanned in three dimensions using an optical scanner (baseline). Two ceramic bracket systems were placed (19 metal-reinforced polycrystalline ceramic brackets; 21 monocrystalline ceramic brackets). Seven days later, brackets were debonded and teeth scanned (post-debond). Adhesive remnants and bracket fragments were recorded. Tooth surfaces were cleaned using a finishing carbide bur and scanned again (post-cleanup). Post-debond and post-cleanup scans were aligned with the baseline, and surface changes were quantified. Results were statistically compared using t-tests and Mann-Whitney tests (a 5 .05). Results: The depth of enamel loss (mean 6 standard deviation) post-debond was 21 6 8 mm and 33 mm and post-cleanup was 28 6 14 mm and 18 6 8 mm (P 5 .0191); the post-debond remnant thickness was 188 6 113 mm and 120 6 37 mm (P 5 .2381) and post-cleanup was 16 6 5 mm and 15 mm for polycrystalline and monocrystalline ceramic brackets, respectively. The monocrystalline ceramic brackets predominantly left all adhesive on the tooth; the polycrystalline ceramic brackets were more likely to leave bracket fragments attached. Conclusion: Both systems allowed successful removal of the brackets with minimal enamel loss. However, the polycrystalline ceramic brackets left more fragments on the tooth, which complicated cleanup efforts. (Angle Orthod. 2015;85:651-656.)

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Section: Discussionmentioning

confidence: 99%

Enamel loss following ceramic bracket debonding: A quantitative analysis in vitro

Suliman

Trojan

Tantbirojn

et al. 2014

The Angle Orthodontist

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“…While the buccal and lingual surfaces benefit from fluoride (F)-containing products, such as dentifrices and tablets, the effect on the approximal surfaces appears to be less pronounced [Granath et al, 1978;Li et al, 1994;Øgaard et al, 1994]. This suggests that targeted topical F application is essential to these less accessible areas of the dentition.…”

mentioning

confidence: 99%

Effect of Fluoridated Toothpicks and Dental Flosses on Enamel and Dentine and on Plaque Composition in situ

Särner

Birkhed²,

Huysmans³

et al. 2004

Caries Res

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The aim was to evaluate the effect of two toothpicks and two dental flosses on demineralized enamel and dentine and on plaque composition, using an in situ model with simulated approximal spaces within dentures. Fifteen subjects with full dentures were recruited and 14 completed the study. It consisted of two crossover periods, the first comparing a birch toothpick with AmF and a birch toothpick with NaF, and the second comparing a dental floss with AmF + NaF and a dental floss without F. Between these four periods, there was a control period without any approximal cleaning. In small, rectangular sample holders, one enamel and one dentine specimen were embedded, forming a triangular, approximal-like space. Two sample holders were mounted in the premolar-molar region of the upper or lower dentures. The subjects used the toothpicks or dental flosses 3 times/day for 4 weeks. The results showed that all toothpicks and dental flosses inhibited further demineralization compared to the control period (p < 0.001). The dental flosses were somewhat more effective in this respect than the toothpicks, especially in dentine. There were relatively small numerical differences between AmF and NaF toothpicks, but in favour of NaF regarding mineral gain (p < 0.05). The fluoridated floss gave somewhat less lesion depth in dentine than the non-fluoridated floss (p < 0.01). Toothpicks and flosses resulted in lower counts of microorganisms in plaque compared to the control period (p < 0.001); the AmF toothpick gave a more pronounced reduction than the NaF toothpick (p < 0.001).

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“…It has been suggested that, apart from the antibacterial function of fluoride in drinking water, the absorption of fluoride into the enamel of adult teeth may also aid in the prevention of dental caries. The absorption of fluoride into adult tooth enamel is however dependant of the length of exposure of the teeth to the fluoride, the concentration of fluoride it is exposed to, the age of the individuals being studied as well as the different tooth surfaces under investigation (Tanaka et al, 1993;Li et al, 1994;Hirose et al, 1996). It has thus been shown that the difference in absorbed enamel fluoride when comparing groups exposed to water from a naturally fluoridated area and those from a non-fluoridated area is not significant and therefore its influence in the prevention of dental caries is negligible (Li et al, 1994).…”

Section: Discussionmentioning

confidence: 99%

Dental health of 19th century migrant mineworkers from Kimberley, South Africa

Merwe

Steyn

Maat

2011

Intl J of Osteoarchaeology

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Dental health may deteriorate in populations exposed to economic growth as a result of easier access to refined carbohydrates and sugars. Such changes affected migrant labourers working in Kimberley, South Africa, during the late 19th century. A rescue excavation salvaged several skeletons from pauper's graves dating from this period, and the purpose of the study was to assess their dental health to determine whether it concurs with historical statements suggesting that the skeletal population sample being investigated was migrant labourers with limited access to a healthy diet. According to historic sources their diets mainly consisted of ground carbohydrates and occasional meat. The permanent dentition of 79 males and 13 females (majority between 20 and 49 years of age) were examined. Carious lesions were observed in 57% of males and 46.2% of females with an average of 2.7 and 3.8 carious teeth per mouth. The anterior teeth were significantly less affected than the posterior teeth. Periodontal granulomata ('abscesses') were observed in 17.7% of males and 15.4% of females, and periodontal disease affected 40% of those investigated. Antemortem tooth loss (AMTL) was recorded in 29% (N ¼ 27) of the sample with an average of 3.5 teeth lost per mouth.It was concluded that the prevalence of dental caries, periapical granulomata and periodontal disease as well as the pattern of AMTL observed concurs with dietary descriptions for paupers in historical documents. The relatively low prevalence of carious lesions can be ascribed to the limited time migrant labourers spent in Kimberley and the labour restrictions they had to comply with during their stay in the compounds.

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Fluoride profiles in different surfaces of human permanent molar enamels from a naturally fluoridated and a non-fluoridated area

Cited by 21 publications

References 17 publications

Enamel loss following ceramic bracket debonding: A quantitative analysis in vitro

Enamel loss following ceramic bracket debonding: A quantitative analysis in vitro

Effect of Fluoridated Toothpicks and Dental Flosses on Enamel and Dentine and on Plaque Composition in situ

Dental health of 19th century migrant mineworkers from Kimberley, South Africa

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