What Causes Sialorrhea?

Malocclusion

An individual affected by sialorrhea may also be affected by dental malocclusion. The term occlusion is utilized to describe the way an individual's teeth are aligned. The proper alignment of the teeth allows for all of the teeth to populate the mouth without causing issues with spacing or crowding. Proper occlusion also means none of the teeth in an individual's mouth are twisted or rotated. The teeth on the bottom of an individual's jaw should underlap the teeth of the upper jaw by a trivial amount, just enough for the pointy parts of the molars to fit together and stop the tongue from being bitten. When an individual's teeth deviate from the proper alignment properties, it is referred to as malocclusion. Malocclusion can result in sialorrhea by stopping the proper clearance of saliva into the esophagus. Malocclusion can cause sialorrhea if the mouth cannot close properly, and misaligned teeth produce swelling and irritation in the oral cavity.

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