Free DANB Dental Charting and Caries Classification Questions and Answers

Question 1

Using the Universal Numbering System, which tooth is designated as #25?

Accepted Answer

Mandibular right central incisor

Answer

The Universal Numbering System numbers teeth 1-32 for the permanent dentition, starting with the maxillary right third molar (#1). Tooth #25 is the mandibular right central incisor, located in the lower right quadrant.

Question 2

A carious lesion located on the proximal surface of a posterior tooth is classified as:

Accepted Answer

Class II

Answer

G.V. Black's Classification system categorizes caries based on location. A Class II lesion involves the proximal (mesial or distal) surfaces of premolars and molars. These restorations often require an occlusal component for access.

Question 3

In the FDI World Dental Federation notation system, the number 34 refers to which tooth?

Accepted Answer

Mandibular left first premolar

Answer

The FDI system uses a two-digit number. The first digit indicates the quadrant (1-4 for permanent teeth), and the second indicates the tooth from the midline (1-8). Quadrant 3 is the mandibular left, and tooth 4 is the first premolar, making #34 the mandibular left first premolar.

Question 4

Caries on the incisal edge of an anterior tooth or the cusp tip of a posterior tooth is classified as:

Accepted Answer

Class VI

Answer

Class VI is a later addition to G.V. Black's original classification. It specifically describes caries or wear defects found on the incisal edges of anterior teeth or the occlusal cusp tips of posterior teeth.

Question 5

On a dental chart, how is a tooth that needs to be extracted typically indicated?

Accepted Answer

A diagonal line is drawn through the tooth

Answer

While charting symbols can vary slightly, the standard convention for a tooth that is indicated for extraction is to draw a single diagonal or two crossed diagonal lines through the entire tooth on the chart.

DANB General Chairside Assisting (GC) Test Practice Test

DANB General Chairside Assisting (GC) Test Practice Test

Free DANB Dental Charting and Caries Classification Questions and Answers