Generally speaking, the odds of dot happening dental caries is as high as 60%-80% .
Why does dot have decayed tooth more easily?
The most logical explanation is alimental is changed subtly, contain the addition of sugar volume, the popularity of carbonic acid beverage.
But these things just make caries bad take advantage, the mainest factor is we answer the precautionary job of food of high in syrup to do cannot get be short of even break. So parents should supervise and urge conciously oneself child better clean tooth, be adjusted appropriately and abstemious their food, want to choose pair of dental hurtless food and beverage at the same time, the incidence of a disease of dot dental caries is reduced on certain level.
Of course, we are prevented impossibly also child take candy, crucial is the child clean tooth brushs his teeth as soon as possible after taking candy, in case candy decomposes generation acid, acid makes the tooth takes off mine, collapse solution, form caries hole.
Moreover, the deciduous teeth calcify of dot is poor, low to acerbity resistance, take off mine collapse solution more easily, plus the reason of dental configuration, bacterium, food stops easily, dental caries is incidental also.
Additional, our tooth is not flowing, its surface of uneven, bumpy, have very much nest, channel. . . . Especially dot.
Dental gully is very easy conceal food is residual reach a bacterium.
The tooth below microscope
Seeing side analyse picture
Be this kind of structure because of the tooth, so classics regular meeting has food residual bequeath, and front tooth is in oral cavity most inside, clean not quite easily, brush Mao Shen not to go in plus tooth brush of channel of a little deep nest, the bacterium can be entered, food is residual and OK joy is resident in deep nest channel ah ~ then dental caries (decayed tooth) happy happening, development rose ~
Must mention at that time [nest channel closes]
Nest channel closes even if the nest channel to the tooth closes on besmear one layer material, when liquid state it but infiltration comes inside the nest channel of dental surface, via the solidify after illumination, form protective screen of a protection, enclothe go up in nest channel, the original bacterium inside nest channel broke off nutrient origin, gradually " starved to death " , it is easy to still make a tooth smooth clean, the bacterium cannot enter nest channel again, can lower the occurence rate of dental caries effectively.
PS: The applicable age that nest channel closes is 3-4 of lacteal grind one's teeth year old, 6-7 of grind one's teeth of the first constant year old, 11-13 of grind one's teeth of double fang, the 2nd constant is when year old optimum close time. But not be all teeth need to do nest channel to close, nest trench is only deeper, and the children that is crowd of caries disease easy feeling just is necessary to execute nest channel to close.
