gingiva

The involved mucose was mainly on the cheek, tongue, lip and gingiva.

虽发生率高，但只仔细观察、有效护理，是可以降低口腔粘膜炎发生程度。

Conclusion The larger pleomorphic adenoma predominantly occur at the parotid,submaxillary gland or palate,while the smaller one at lip,bucca,gingiva,frons and nasolabial sulcus.

结论腮、颌下、腭部是较大多形性好发部位,而较小则易发生在唇、颊、龈、额、鼻唇沟部位。