Question

question 3 of 5 which of these is a part of good dental hygiene? a. brushing twice a day b. regular doctor visits c. frequent handwashing d. regular teeth whitening

Explanation:

Brushing teeth twice a day helps remove food particles and plaque, which is fundamental to good dental hygiene. Regular doctor visits are for check - ups and treatment, not daily hygiene. Frequent handwashing is for general hygiene, not dental. Regular teeth whitening is a cosmetic procedure, not basic dental hygiene.

Answer:

A. Brushing twice a day