口腔位于面颜的下部,是消化系统的起端。前壁以口唇为界,两侧被双颊包围,上界的前期2/3为硬腭,后1/3为软腭,下界由口腔底部的肌肉组成,后界借咽峡与咽相通。在闭口时,口腔可分为前庭和固有口腔两个部分,口唇以内、牙齿以外叫口腔前庭,牙齿以内到咽部叫固有口腔。口腔的工作很繁重,经常有食物残渣遗留。如不能及时清理,不仅口味不佳,还会诱发其他疾病。如果单纯是早上的时候口味 Oral cavity is located in the lower face, is the beginning of the digestive system. Front wall to the lips as the boundary, surrounded by cheeks on both sides of the upper boundary of the early 2/3 of the hard palate, the latter 1/3 of the soft palate, the lower bound by the bottom of the oral muscles, the posterior bound by pharyngeal gorge and pharyngeal communication. In the closed mouth, the oral cavity can be divided into two parts of the vestibule and the inherent mouth, lips, teeth outside the mouth called the vestibule, called the internal teeth to the pharynx inherent oral. Oral work is very heavy, often left behind by food debris. If not cleaned up, not only taste bad, but also induce other diseases. If it is simply the taste of the morning