Each of the following is a feature of papillary hyperplasia except:
Papillary hyperplasia is characterized by multiple papillary projections of the epithelium caused by local irritation, poor-ﬁtting denture, poor oral hygiene, and leaving dentures in all day and night.
It is a proliferative bone disease
It can be caused by wearing the dentures at night
It can be caused by poor oral hygiene
It can be caused by an ill-ﬁtting denture