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How do anaerobic microflora survive in the mouth although humans have a high intake of oxygen through the mouth.
Compulsive Use
The behavior characterized by an irresistible urge to continuously engage in an activity or consumption of a substance despite harmful consequences.
Clinical Manifestations
Observable signs or symptoms associated with a medical condition.
Dependence
A condition in which a person relies on a substance or activity for normal functioning or feels a compelling urge to use it.
Ventilation
The process of moving fresh air into and stale air out of a space to ensure adequate air quality.
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