gingival hyperplasia refers to some non-inflammatory gingival hyperplasia caused by factors other than local stimulation. Including drug-induced gingival hyperplasia and hereditary gingival fibromatosis, often accompanied by chronic gingival inflammation. Generally, after the eruption of teeth (a few in the deciduous period), the gingiva generally proliferates, affecting the gingival papilla, marginal gingiva and attached gingiva, and even reaching the membranous gingival union; Hyperplasia gums are normal, solid, smooth, nodular, with obvious stippling, not easy to bleed and painless. Hyperplasia gums cover some or even all teeth surfaces (about 2/3 of the crown), and can displace teeth. If gingival hyperplasia occurs, it is necessary to perform gingivoplasty, that is, remove some gums and restore the physiological shape of gums. If you don't pay attention to oral hygiene, you can have repeated attacks after operation. If good oral hygiene is maintained after operation, recurrence can be avoided or very slow. Surgery can still be performed after recurrence.