치아교정시 탈회(초기충치) 예방

치아교정시에는 교정장치로 인해 칫솔이 잘 닿지 않는 부위가 많아집니다.

따라서 브라켓 주변등에 탈회(초기충치)가 잘생깁니다.

치아의 이동을 위해 치아와 치아사이를 삭제하는 경우 치아사이에 충치도 잘 생깁니다.

이러한 이유로 치아교정시에는 특별히 구강관리에 신경써야합니다.

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전동칫솔, 구강세정기, 교정용칫솔과 치실 등이 도움이 되며..

다양한 기구를 이용해 치면의 세균막을 깨끗히 제거해야 탈회와 충치를 예방할 수 있습니다.

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치면청소가 잘 안된다는 뜻은 충치의 원인인 세균이 번식하기 좋은 환경이라는 뜻입니다.

치면에 이물질이 많으면 그만큼 세균의 먹이가 많다는 뜻이고 세균들이 치면의 음식물 찌꺼기를 먹는 과정에서 산(Acid)성분을 뿜어내고 치아가 부식 되면서 탈회가 생기게 됩니다.

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탈회는 구강내의 산도가 높아져 미네랄의 균형이 깨지면서 발생하게 됩니다.

따라서 구강내의 산도가 높아지지 않도록 구강관리를 잘 해야 하고 치아에 부족할 수 있는 미네랄을 보충해 주는 것이 좋습니다.

 

Dental Press J Orthod

Nov-Dec 2019;24(6):48-55.

Efficacy of fluoride associated with nano-hydroxyapatite in reducing enamel demineralization adjacent to orthodontic brackets: in situ study

Carina Faleiros Demito 1 , Julyano Vieira da Costa 1 2 , Marina de Lourdes Calvo Fracasso 3 4 , Adilson Luiz Ramos 4

Abstract

Objective: To assess in situ the effect of fluoride associated with nano-hydroxyapatite for the prevention of demineralization of the enamel adjacent to orthodontic brackets.

Material and methods: Eight volunteers wore palatal devices prepared with 6 bovine enamel blocks (5x5x2 mm) with bonded brackets. The volunteers used the devices in two different moments of 14 days each. During the first 14 days, a product containing fluoride + nano-hydroxyapatite was applied twice (experimental group, GNH, n = 48), and for the other 14 days no prevention product was applied (control group, CG, n = 48). In both groups, along the experiment, the blocks were dripped with 20% sucrose eight times daily. After the experiment, all the specimens were sectioned and examined for lesion depth analysis (µm) under polarized light microscopy, and for enamel longitudinal microhardness (measured under the bracket, at 30 µm and at 130 µm from the margin), at seven different depths (10, 20, 30, 50, 70, 90, and 110 µm).

Results: Under polarized light, group GNH presented significantly less demineralization depth ( X ¯ = 15.01 µm, SD = 33.65) in relation to CG ( X ¯ = 76.43 µm, SD = 83.75). Enamel longitudinal microhardness demonstrated significantly higher microhardness for group GNH when compared to CG.

Conclusion: Fluoride + nano-hydroxyapatite can be an alternative preventive procedure for demineralization of the enamel adjacent to orthodontic brackets.

 

Biomed Res Int

2020 Jan 30;2020:6747498.

Biomimetic Effect of Nano-Hydroxyapatite in Demineralized Enamel before Orthodontic Bonding of Brackets and Attachments: Visual, Adhesion Strength, and Hardness in In Vitro Tests

Andrea Scribante 1 , Mohammad Reza Dermenaki Farahani 2 , Giorgio Marino 2 , Claudia Matera 2 , Ruggero Rodriguez Y Baena 2 , Valentina Lanteri 3 , Andrea Butera 2

Abstract

Dietary habits with high consumption of acidic food can induce in orthodontic patients an increased risk of demineralization lesions around orthodontic brackets and bands. The purpose of the present laboratory study is to assess the in vitro visual efficacy of a biomimetic nano-hydroxyapatite remineralizing solution in a hypomineralized enamel surface and its effect on adhesion of fixed orthodontic appliances and on enamel microhardness. Intact teeth were demineralized, and subsequently the areas of demineralization were visually recorded using a 0-100 scale. Subsequently, a remineralizing solution (Biorepair® Repair Shock Treatment) was applied for ten minutes once a day/for one week per month for a total remineralizing treatment of 3 months. Visual effects were recorded. Moreover, bond strength was recorded and adhesive remnant index scores were measured for both orthodontic brackets and composite attachments both before demineralization and after demineralization and application of remineralizing solution. Also, Vickers microhardness was measured. All data were submitted to statistical analysis. The application of remineralizing solution induced a significant in vitro reduction of demineralized areas after the first week of application. No significant differences between untreated enamel surfaces and remineralized surfaces were detected after 2 months of remineralizing treatment. Bond strength values were significantly reduced for both brackets and attachments after remineralizing treatment. However, attachments showed higher adhesion values than brackets in both conditions tested. Remineralized enamel showed significantly higher microhardness values than demineralized enamel and lower values than intact enamel.

 

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