Ultrasonic scaling and its associated cooling water spray frighten
most awake animals, and without anesthesia the teeth can not be polished, which decreases the retentive ability for plaque and calculus (like a coral reef, giving the plaque and calculus an easy way to affix itself to the teeth).
«It is interesting that the lateral sleep position is already the
most popular in human and
most animals — even in the wild — and it appears that we have adapted the lateral sleep position to
most efficiently clear our brain of the metabolic waste products that built up while we are
awake,» says Dr. Maiken Nedergaard, PhD, University of Rochester.