这往往是第一个迹象牙龈炎和严重的牙齿有问题。
This is often the first sign of gingivitis and serious dental problems.
他还说，然而我们需要进行更多的研究来证明牙龈疾病直接导致2型糖尿病，和因此处理牙齿问题能够预防糖尿病。
He added, however, that more studies are needed both to prove that gum disease directly contributes to type 2 diabetes, and, from there, that treating the dental problem can prevent diabetes.
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