标签：Cavit - 英国华人论坛

Cavities are also known as tooth decay.  The next question comes up is how thesecavities occur?  In order to understandthis we have to understand plaque. Plaque is a sticky substance that is formed from the food residue and bacteria.  Th...英国华人论坛

One of the most common universal health problems are cavities. A cavity is decay in the tooth that can develop into a visible hole in the tooth.When tooth decay first begins there may not be any obvious symptoms. As the decay becomes more se...英国华人论坛