1. What is the main purpose of preventative dental

cleanings?

a) To remove plaque and calculus from the teeth and gums

b) To detect and treat oral diseases such as caries and

periodontitis

c) To educate patients on proper oral hygiene and nutrition

d) All of the above

Answer: D. Preventative dental cleanings aim to prevent

oral problems by removing harmful deposits, diagnosing

and managing diseases, and promoting healthy behaviors.

2. Which of the following instruments is used to measure

the depth of the gingival sulcus or pocket?

a) Explorer

b) Scaler

c) Probe

d) Curette

Answer: C. A probe is a calibrated instrument that is

inserted into the sulcus or pocket to measure its depth in

millimeters.

3. What is the recommended frequency of preventative

dental cleanings for most patients?

a) Once a year

b) Twice a year

c) Every three months

d) It depends on the patient's risk factors and needs

Answer: D. The frequency of preventative dental cleanings

should be individualized based on the patient's oral health