DANB Exam Prep 2026/2027: 130 Practice Questions

DANB Dental Assistant Exam 2026/2027: 130
Practice Test Questions with Answers &
Explanations | CDA Test Bank for General
Chairside, Infection Control & Radiology

Description:
Pass the DANB CDA exam in 2026/2027 with this comprehensive test bank of 130 high-yield
practice questions covering General Chairside, ICE, and RHS. Each question includes
detailed answers and rationales aligned with the latest DALE Foundation standards.




Download now to start your certified dental assistant exam preparation today!

, DANB Exam Prep 2026/2027: 130 Practice Questions

Section 1: Dental Anatomy, Morphology, and Physiology

1. A permanent dentition consists of how many teeth?

 A. 28
 B. 30
 C. 32
 D. 26

Answer: C. 32

Explanation: A complete permanent dentition consists of 32 teeth, including four third molars
(wisdom teeth). The primary dentition, by contrast, contains only 20 teeth.

2. Which teeth are commonly referred to as "eye teeth"?

 A. Premolars
 B. Canines
 C. Incisors
 D. Bicuspids

Answer: B. Canines

Explanation: Canine teeth are frequently called "eye teeth" or "cuspids." These teeth are
designed for cutting and tearing food and are located at the corners of the dental arches.

3. Which proximal surface of a tooth is closest to the midline of the body?

 A. Occlusal
 B. Facial
 C. Incisal
 D. Mesial

, Answer: D. Mesial

Explanation: The mesial surface is the proximal tooth surface that faces toward the midline. The
distal surface faces away from the midline. Occlusal and incisal surfaces are not proximal
surfaces.

4. How many premolars are present in a permanent dentition?

 A. 4
 B. 8
 C. 12
 D. 16

Answer: B. 8

Explanation: The permanent dentition contains eight premolars (two in each quadrant).
Premolars are also referred to as bicuspids.

5. When the mouth is divided into four sections, these sections are referred to as:

 A. Quadrants
 B. Arches
 C. Sextants
 D. Segments

Answer: A. Quadrants

Explanation: The oral cavity is divided into four quadrants: maxillary right, maxillary left,
mandibular right, and mandibular left. The two arches are the maxillary (upper) and mandibular
(lower) arches.

6. Using the Universal Numbering System, tooth #12 is which tooth?

 A. Maxillary right canine
 B. Maxillary left first premolar

,  C. Maxillary left canine
 D. Maxillary right first premolar

Answer: B. Maxillary left first premolar

Explanation: In the Universal Numbering System, tooth #12 is the maxillary left first premolar.
Numbering begins with #1 at the maxillary right third molar and continues sequentially to #16 at
the maxillary left third molar.

7. Using the International Standards Organization (ISO) system, tooth #25 is which tooth?

 A. Mandibular right central incisor
 B. Maxillary left second premolar
 C. Mandibular left central incisor
 D. Maxillary right second premolar

Answer: B. Maxillary left second premolar

Explanation: In the ISO/FDI two-digit system, tooth #25 is the maxillary left second premolar.
The first digit indicates the quadrant, and the second digit indicates the tooth number within that
quadrant.

8. What structure connects cementum to the alveolar bone?

 A. Dentin
 B. Pulp
 C. Periodontal ligament
 D. Enamel

Answer: C. Periodontal ligament

Explanation: The periodontal ligament (PDL) consists of connective tissue fibers that attach the
cementum of the tooth root to the alveolar bone, providing support and allowing for slight tooth
mobility.