Dry Mouth Linked to Tooth Decay

An Often Unconsidered Condition

Dry Mouth Linked to Tooth Decay

Saliva. It’s the miracle liquid that helps wash away cavity-causing bacteria and food debris, all the while protecting your tooth enamel.

Research shows that hundreds – up to even 1,000! – of commonly prescribed medications cause dry mouth, reducing the flow of saliva and exponentially increasing the risk of tooth decay.

Research shows that hundreds – up to even 1,000! – of commonly prescribed medications cause dry mouth, reducing the flow of saliva and exponentially increasing the risk of tooth decay. Researchers say that anything that curbs the flow of saliva in the mouth should be of major concern to dentists and hygienists

“Our saliva washes away sugars and other substances that help promote cavities. It neutralizes the acids in our mouths,” says Gene Watson, D.D.S., Ph.D., is director of the Salivary Dysfunction Center at the University of Rochester Medical Center. “Saliva is concentrated with minerals like calcium and phosphate. When you eat sugar, bacteria on your teeth produce acid that demineralizes the teeth a little bit, but then the saliva flows in and replaces the layer that has been removed.”

Researchers say millions of people are at heightened risk for tooth decay because of the medicines they take, particularly the elderly, many of whom take several medications that stem the flow of saliva.

One medication commonly prescribed for Attention Deficit Hyperactivity Disorder can also cause dry mouth and increase risk of excessive carries development in the children who take it.

Aside from discontinuing use of the medications, patients can make several changes that can reduce their risk of excessive tooth decay at the hands of reduced saliva flow:

1.    Brush their teeth more often and very gently to ensure enamel isn’t damaged.
2.    Have teeth checked every six months without fail. Sometimes a problem will be detected that would require a change in medication to preserve the health of the teeth.
3.    If medications causing dry mouth simply cannot be changed, consider prescribing medications that can increase saliva production to offset the effects of the other medications.