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Excessive secretion of saliva can be due to-excessive mucous secretion of salivary glands,incomplete lip seal,open carious tooth,peri coronitis.
Anti sialogouges has to be administered in such cases.
S i a l o gr a p h y investigation will help to rule out the cause of excessive saliva secretion.
Meanwhile,maintain oral hygiene
Use ch lo r hex id in e mouth rinses