CVA Veterinary Dental Assisting

Question 1

In the Modified Triadan numbering system used in veterinary dentistry, what does the first digit of a three-digit tooth number represent?

Accepted Answer

The quadrant of the mouth (right maxilla, left maxilla, right mandible, left mandible)

Answer

In the Modified Triadan system, the first digit identifies the quadrant: 1 = right maxilla, 2 = left maxilla, 3 = left mandible, 4 = right mandible (for permanent teeth). The remaining two digits identify the specific tooth within that quadrant, counted from the midline. For example, tooth 104 is the right maxillary first premolar.

Question 2

Which dental surface term refers to the side of a tooth facing the cheek?

Accepted Answer

Buccal

Answer

Buccal refers to the tooth surface facing the cheek (buccinator muscle). Lingual refers to the surface facing the tongue (lower teeth), palatal to the surface facing the palate (upper teeth), and mesial refers to the surface facing the midline of the dental arch.

Question 3

What does a periodontal probe measure during a veterinary dental examination?

Accepted Answer

The depth of the gingival sulcus or periodontal pocket around each tooth

Answer

A periodontal probe is inserted gently into the gingival sulcus at multiple points around each tooth to measure pocket depth in millimeters. Normal sulcus depth is ≤3 mm in dogs and ≤1 mm in cats. Deeper pockets indicate periodontal disease with attachment loss.

Question 4

Stage I periodontal disease in veterinary patients is characterized by which finding?

Accepted Answer

Gingivitis only, with no attachment loss or bone loss

Answer

Stage I (PD1) is defined as gingivitis only — inflammation of the gingival tissue with no loss of attachment or supporting bone. It is the only stage that is fully reversible with professional cleaning and home care. Stages PD2–PD4 involve progressive attachment and bone loss.

Question 5

Which instrument is primarily used to remove supragingival calculus (calculus above the gumline) during a veterinary dental prophylaxis?

Accepted Answer

Ultrasonic scaler

Answer

An ultrasonic scaler uses high-frequency vibrations and water irrigation to efficiently break up and remove supragingival calculus deposits. Hand scalers and curettes can also remove calculus, but ultrasonic scalers are the primary tool for supragingival cleaning in veterinary practice. A dental explorer detects defects; dental and periosteal elevators are used in extractions.

(CVA) Certified Veterinary Assistant Practice Test

(CVA) Certified Veterinary Assistant Practice Test

CVA Veterinary Dental Assisting