NBDHE NBDHE Patient Education and Preventive Dentistry

Question 1

The Bass toothbrushing technique is most effective at removing plaque from:

Accepted Answer

The gingival sulcus and margin

Answer

Occlusal surfaces only

Answer

Interproximal surfaces only

Answer

The dorsal tongue

Question 2

The US Public Health Service currently recommends community water fluoridation at:

Accepted Answer

0.7 ppm

Answer

0.3 ppm

Answer

1.2 ppm

Answer

2.0 ppm

Question 3

Dental sealants are most effective when applied to:

Accepted Answer

Pit and fissure surfaces of posterior teeth

Answer

Smooth proximal surfaces of incisors

Answer

Root surfaces exposed by recession

Answer

Anterior teeth in adults

Question 4

The Snyder colorimetric test assesses oral health by measuring:

Accepted Answer

Cariogenic bacterial acid production potential

Answer

Fluoride levels in saliva

Answer

Buffering capacity of saliva

Answer

Periodontal pocket depth

Question 5

Xylitol reduces caries risk primarily by:

Accepted Answer

Inhibiting Streptococcus mutans growth and acid production

Answer

Strengthening enamel crystalline structure

Answer

Neutralizing salivary pH

Answer

Increasing salivary flow rate

Question 6

Primary prevention in dentistry is defined as:

Accepted Answer

Preventing disease from occurring in the first place

Answer

Treating existing disease before it progresses

Answer

Limiting disability from established disease

Answer

Rehabilitating function after tooth loss