Final answer:
The Bass method, also known as the circular brushing technique, is characterized by brushing teeth in small circular motions.
Step-by-step explanation:
The brushing method that is predominantly circular in motion is known as the Bass method or circular brushing technique. This method involves moving the toothbrush in small circular motions to clean the teeth and gums effectively. It contrasts with other brushing techniques that might use linear or back-and-forth motions, as found in other cleaning motions like the reciprocating motion of a saw or the uniform circular motion observed in a carousel or a merry-go-round where objects move in a circular path at constant speed.