Wiggs

Question 1

What factors stimulate osteoclastic bone resorption?

Wiggs Ch 5

Answer 1

PGE2, IL-1Beta, IL-6, TNF-alpha

Question 2

What is Stage 0 tooth mobility according to the AVDC?

Wiggs Ch 5

Answer 2

Physiologic mobility up to 0.2mm

Question 3

What is Stage 1 mobility according to the AVDC?

Wiggs Ch 5

Answer 3

mobility increased in any direction other than axial by 0.2 to 0.5mm

Question 4

What is Stage 2 mobility according to the AVDC?

Wiggs Ch 5

Answer 4

mobility increased in any direction other than axial by 0.5 to 1.0mm

Question 5

What is Stage 3 mobility according to the AVDC?

Wiggs Ch 5

Answer 5

mobility increased in any direction other than axial by more than 1.0mm or any axial movement

Question 6

What is the normal sulcus depth for dogs and cats respectively?

Wiggs Ch 5

Answer 6

Dogs: < 3mm
Cats: < 0.5mm

Question 7

What breeds of dogs have a familial tendency for gingival enlargement?

Wiggs Ch 5

Answer 7

Boxers, Bulldogs, Collies

Question 8

What percent of mineral loss of tooth and bone structures is necessary before radiographic changes can be seen on dental radiographs?

Wiggs Ch 5

Answer 8

30-50%

Question 9

What breeds of dogs and cats are overrepresented in cases of aggressive periodontitis?

Wiggs Ch 5

Answer 9

Miniature Schnauzer
Greyhound
Maltese
Abyssinian, Siamese, Somali

Question 10

Closed root planing is appropriate up to what pocket depth?

Wiggs Ch 5

Answer 10

5mm

Question 11

What is the maximum rpm for safely polishing teeth and avoiding hyperthermia?

Wiggs Ch 5

Answer 11

3000rpm

Question 12

When is calculus accumulation clinically detectable?

Wiggs Ch 5

Answer 12

48-72 hours

Question 13

Define the following:
Gouging
Ledge
Zipping or elliptication
Elbow stricture
Stripping

Wiggs ch 16 - endo

Answer 13

Gouging: the penetration of the pulp chamber floor but not completely through the root/crown wall
Ledge: a gouge or false canal created during instrumentation with excessive apical pressure primarily associated with curved canals, causes loss of WL
Zipping or elliptication: when an overextended file transports the outer wall of the apical foramen, typically from not pre-bending files
Elbow stricture: the root canal has decreased the diameter just before the actual terminus of the canal (narrow before apex)
Stripping: a complication that results in lateral wall perforation

Question 14

What amount of time of bleeding during a VPT may indicate that not all inflamed hyperplastic tissue has been removed?

Wiggs Ch 16 - endo

Answer 14

5-6 min

Question 15

What are the six Black’s classification of caries?

Wiggs Ch 17

Answer 15

Class I: A lesion that involves a pit, fissure or developmental groove of all teeth except the canines (incisors, premolars and molars)
-Infundibular carie in horses
Class II: A lesion that affects the proximal (near other tooth) surface of a premolar or molar
Class III: A lesion that affects the proximal surface of an incisor or canine.
Class IV: A lesion that affects the proximal and incisive edge of a canine or incisor.
Class V: A lesion that affects the labial, buccal or lingual surface of any tooth (incisors, canines, premolars or molars).
Class VI: A lesion that affects the incisive edge of any tooth that is not included in the previous five classifications.

Question 16

Histological studies of the calcification that occurs at the apical foramen in apexification is typically what?

Wiggs Ch 16

Answer 16

Osteoid (bone like) or cementoid (cementum-like)

Osteoblasts and cementoblasts are induced

Question 17

Define regenerative endodontics and how it differs for the tooth as compared to apexification

Wiggs Ch 16

Answer 17

Pulp regeneration, the intentional revascularization and regeneration of pulp (or “pulp‐like”) tissue
The pulp tissue is regained, allowing continued root end development in both width, length, increased thickness dentinal walls, and apex closure