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Effects of Drugs on Oral Health

Posted on 9/11/2023 by Evan
Effects of Drugs on Oral HealthThe medications we take, both prescription and over-the-counter, can significantly impact oral health in various ways. Being informed on how certain pharmaceuticals influence the mouth empowers patients and dentists to collaborate on optimizing oral care.

Reduced Salivary Flow Leading to Dry Mouth

A wide range of medications can reduce salivary flow, leading to chronic dry mouth. With less of the mouth's natural protective fluids, patients become prone to issues like cavities, gum disease, oral infections, and difficulty chewing, swallowing, and speaking. Drugs with anticholinergic properties, like antihistamines, antidepressants, or blood pressure medications, are common culprits for reduced saliva.

Increased Tooth Decay Risk

Some medicines contain sugars that interact with oral bacteria to increase cavity risk. Liquid preparations often include sugary syrups as flavoring or solubilizing agents. Drugs that decrease saliva also compromise the mouth's natural ability to neutralize and wash away cavity-causing acids. Patients taking such medicines require extra preventive measures like diligent brushing and flossing, fluoride application, and more frequent dental visits.

Gum Overgrowth and Inflammation

Certain medications like anticonvulsants, calcium channel blockers, and immunosuppressants may cause gingival overgrowth. Excess gum tissue is prone to inflammation, bleeding, and infection. Patients on these drugs must practice excellent oral hygiene and receive professional cleaning at shortened intervals to maintain healthy gums.

Jawbone Loss

Long-term use of some osteoporosis and cancer drugs can lead to the deterioration of jawbones. This may complicate future procedures like tooth extraction or dental implant placement. Patients taking these medications should inform their dentist for proper planning. Quitting smoking while on such drugs also helps lower risks.


With proper awareness and care coordination, patients taking any medications can keep their mouths healthy despite potential oral side effects. Understanding a drug's specific influences allows dentists to customize preventive treatment, monitoring, and maintenance. Addressing oral health impacts ultimately improves overall well-being.

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