Final answer:
The brushing method that is predominantly vertical in motion is called the Bass technique. This technique involves using short, vibrating or sweeping motions at a 45-degree angle to the gumline to clean the teeth and gums.
Step-by-step explanation:
The brushing method that is predominantly vertical in motion is called the Bass technique. This technique involves holding the toothbrush at a 45-degree angle to the gumline and using short, vibrating or sweeping motions to clean the teeth and gums.
By using a vertical motion, the bristles of the toothbrush can reach into the gumline and remove plaque and debris effectively. Additionally, the Bass technique helps stimulate the gums and can be beneficial for individuals with gum disease.
Some other brushing methods include the horizontal scrubbing technique and the circular technique, but the Bass technique is mainly vertical in motion.