因为句子表达的是刷牙时间越长,牙齿状况越好,所以需要用比较级“better”。 第46题需要填入动词“be”的正确形式。句子主语是“Brushing your teeth for longer”,是一个动名词短语,谓语动词要用单数形式。同时,句子描述的是一个客观事实,所以要用一般现在时。因此,需要填入“is”。 答案: 45. better 46. is...
Tooth enamel may be the hardest tissue our bodies produce, but it still wears away. Find out what wears down tooth enamel and how you can prevent it.
But as amazing as the body's ability to repair itself may be,it can't regrow tooth enamel. Ever. Tooth enamel is the hardest tissue in the body. Problem is, it's not living tissue, so it can't be naturally regenerated. Can you rebuild ground down teeth?
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Tooth enamel is one of the hardest tissues in the human body. It acts as a protective layer for our teeth, and gives our smile that pearly white shimmer. But when enamel erodes, it can't regrow itself.
To be able to treat these tooth twinges, it helps to know what might be behind them. Once you’ve nailed down the cause, you can find a solution. Take Care of Your Tooth Enamel That’s a hard, protective layer that helps your teeth deal with everything you put them through. When ...
Wellnessewhitening toothpaste also contains hydroxyapatite, a naturally-occurring mineral and main component of tooth enamel, which both strengthens teeth and prevents cavities without fluoride. Getting Better Dental Care I’ve mentioned the term “biological dentistry” here a few times, and I want to...
Sports drinks can cause tooth enamel to dissolveVikki Burns
s also good for camouflaging minor flaws in the teeth. It also solves the problem of gaps in teeth and crooked teeth. Composite resins are applied to the top surface of your original teeth. During the process, your dentist will fuse your natural tooth enamel with bonding materials to ensure...
Some cracks affect not only the outside of the tooth, but the inside as well. If the crack is deep enough to reach the pulp of your tooth, located beneath the enamel and dentin layers, you might need a root canal to treat the inflamed pulp and save the tooth. When a root canal is...