Teeth Whitening Patient Assessment & Candidacy 2

Question 1

Which shade guide system is most commonly used in clinical practice to assess tooth color before and after whitening?

Accepted Answer

VITA Classical shade guide

Answer

Munsell color system

Answer

CIE Lab color system

Answer

NBS color reference system

Question 2

A patient has white spot lesions (hypocalcification) on their teeth. How does whitening typically affect these areas initially?

Accepted Answer

White spots may temporarily appear more pronounced as surrounding enamel lightens

Answer

Whitening permanently eliminates white spot lesions

Answer

Whitening has no effect on hypocalcification lesions

Answer

White spot lesions always darken during whitening treatment

Question 3

Which patient is the BEST candidate for custom at-home whitening trays?

Accepted Answer

A patient with mild extrinsic staining and no anterior restorations

Answer

A patient with severe tetracycline staining from childhood

Answer

A patient with multiple composite fillings on front teeth

Answer

A patient with active caries on multiple teeth

Question 4

What is the primary purpose of taking pre-treatment clinical photographs during patient assessment?

Accepted Answer

To document baseline tooth shade and provide before-and-after comparison

Answer

They are required by insurance companies for whitening reimbursement

Answer

To identify carious lesions that X-rays may have missed

Answer

To evaluate the degree of gum recession

Question 5

Which factor in a patient's history most significantly influences the expected whitening outcome?

Accepted Answer

The etiology (cause) of the tooth discoloration

Answer

The patient's age

Answer

The patient's biological sex

Answer

The patient's overall systemic health status

Question 6

A patient reports taking tetracycline antibiotics during childhood. What should the clinician explain about whitening expectations?

Accepted Answer

Whitening may provide some improvement but results are often limited and require extended treatment

Answer

Tetracycline stains respond quickly and completely to standard whitening protocols

Answer

Whitening will have absolutely no effect on tetracycline stains

Answer

Tetracycline-stained teeth must be extracted before whitening can be considered

Question 7

A comprehensive pre-whitening oral examination must include evaluation of which of the following?

Accepted Answer

Caries, periodontal disease, exposed root surfaces, and cracked teeth

Answer

Only visible surface staining on enamel

Answer

Only the patient's saliva pH levels

Answer

Exclusively the anterior teeth that will be visibly whitened