Answer:
Phenytoin therapy may be defined as a therapy used for the prevention of the seizures. The antileptic drug is used during this therapy and inhibits the seizures in the body.
The side effect of phenytoin therapy is gingival hyperplasia that causes the excessive growth of the gums of individual. The oral hygiene can reduce the side effect of this therapy. The statement that the child require proper the massage and flossing of the teeth.