Dental Disease

Question 1

What is retained deciduous tooth?

Answer 1

Failure of the primary tooth’s root to undergo resorption

Question 2

What are the most commonly retained deciduous teeth?

Answer 2

Canine and incisors

Question 3

An erupting maxillary canine erupts _______ to deciduous canines

Answer 3

Rostral

Question 4

Mandibular adult canines erupt ________ to deciduous canines- retained deciduous K9s can cause base narrow adult canines

Answer 4

Lingual

Question 5

The space between two teeth is called?

Answer 5

Diastema

Question 6

T/F: permanent teeth erupt lingual/palatal to deciduous teeth

Answer 6

True

Question 7

What is the most commonly crowded tooth

Answer 7

Maxillary 3rd premolar

Question 8

T/F: decreased free space due to crowding may predispose to periodontal disease

Answer 8

True

Question 9

What is the most common supranumerary tooth?

Answer 9

Maxillary P3 most common

And incisors

Question 10

What are possible consequences of supernumerary teeth?

Answer 10

Interfere with normal occlusion, cause overcrowding, malposition, malocclusion, or incomplete eruption of adjacent teeth

Question 11

Tooth has extra cusp and extra root of normal size. What is this?

Answer 11

Supernumerary root — most common in PM3 (maxillary)

Question 12

What is fusion and germination of teeth?

Answer 12

Fusion — joining of two teeth ( one crown and too roots or two root canals)

Germination — incomplete splitting f two teeth ( two crowns, one root if single rooted or two normal roots medial and distal and large common root in center if multi-rooted)

Question 13

Name for missing teeth?

Answer 13

Anodontia/oligodontia/hypodontia

Question 14

What are causes of missing teeth?

Answer 14

Genetic defect - never developed

Impacted

Slow eruption

Fell out

Trauma
Extracted

Premolars>incisors>molars

Question 15

What is the normal occlusion in the dog/cat?

Answer 15

Maxillary incisors are rostral to the mandibular with the mandibular incisors in contact with the cingulum of the maxillary incisor

Mandibular canine should be rostral to the maxillary canine

Scissor bite with mandibular teeth ahead of corresponding maxillary teeth

4th maxillary premolar should cover the back of the 4th premolar and the lower 1st molar

Question 16

What is the cingulum?

Answer 16

Shelf on the palatal surface of the maxillary incisors where mandibular incisors rest

Question 17

What class of malocclusion is due to malpositioned teeth within a jaw that is normal length

Answer 17

Class I Neutroclusion

Question 18

What are some examples of a class I neutroclusion?

Answer 18

Rostra (anterior) or caudal (posterior) cross-bite

Base narrow canines

Question 19

What type of malocclusion is a parrot mouth/ overshot?

Answer 19

Class 2 Mandibular distocclusion

— mandibular brachygnathism

Question 20

What class of malocclusion is an undershot jaw?

Answer 20

Class 3

— mandibular prognathism

Question 21

What type of malocclusion is a “wry” bite?

Answer 21

Class 4- asymmetrical skeletal malocclusion

Question 22

What is a lance tooth?

Answer 22

Rostral displaced adult canine tooth with a deciduous tooth in normal position

Question 23

Lance tooth is considered genetic in what breeds?

Answer 23

Sheltie

Schnauzer
Italian greyhound
Fox terrier

Question 24

What are possible treatments for lance tooth?

Answer 24

Non
Crown reduction + endodontic
Extraction
Orthodontics

Question 25

One or mor of the maxillary incisors are displaced toward the palate. What is this?

Answer 25

Rostral (anterior) cross bite Class I malocclusion

Question 26

One or more the the maxillary premolars are lingual to the mandibular premolars or molars What do you call this?

Answer 26

Caudal (posterior) cross bite Class I malocclusion

Question 27

What is “level bite”?

Answer 27

When the crowns of the incisors meet Class III malocclusion —> prognathism Leads to abnormal wear on incisors (attrition) commonly repaired by tertiary dentin

Question 28

What are causes of wry mouth?

Answer 28

Trauma | Inherited

Question 29

What are possible treatments for malocclusions?

Answer 29

Interceptive orthrodontics Crown reductions Orthodontic applicants - eg “ball therapy” for base narrow canines Exodontis

Question 30

What type of procedure is the removal of primary teeth to avoid or correct a problem?

Answer 30

Interceptive orthodontics

Question 31

What are possible causes of impacted teeth?

Answer 31

Lack of space in dental arch or mal-alignment of the tooth bud Can result due to trauma, including traumatic extraction of retained primary teeth

Question 32

How are impacted teeth diagnosed?

Answer 32

Radiographs

Question 33

T/F: impacted or malformed teeth should be extracted in most cases?

Answer 33

True - can result in abscess or cyst formation

Question 34

T/F: a vial impacted tooth can potentially erupt into its normal position if the overlying gingiva and alveolar bone is removed

Answer 34

True

Question 35

What is a fluid filled cyst surrounding the crown of an unerupted tooth resulting form persistence of the enamel forming epithelium

Answer 35

Dentigerous cyst

Question 36

Clinical signs of a dentigerous cyst?

Answer 36

Missing teeth Swelling with “blue hue” and may be fluctuant Pain

Question 37

What is the treatment for a dentigerous cyst?

Answer 37

Extract impacted tooth and lining of cyst Extract compromised adjacent teeth “Bone graft”

Question 38

Damage to ameloblastoma during enamel development r exposure of enamel to corrosive material can cause???

Answer 38

Enamel hypoplasia / hypocalcification

Question 39

What are some EDX of enamel hypoplasia?

Answer 39

High fever Distemper Periacpical inflammation or trauma of permanent tooth bud or endocrine dysfunction early in life

Question 40

What is radicular dysplasia?

Answer 40

Developmental root abnormality where the root is very shallow —> can be seen with enamel hypoplasia

Question 41

What are the treatment options for enamel hypoplasia if there is only one or a few teeth affected?

Answer 41

Conservative management Extraction Composite restoration Crown

Question 42

What are the treatment options for enamel hypoplasia if there is diffuse involvement?

Answer 42

Good home care - frequent brushing Regular professional dental cleanings Extractions as needed

Question 43

What the difference between abrasion and attrition?

Answer 43

Attrition = Pathological wearing due to contact with opposite grade teeth (malocclusion ) Abrasion = wearing due to contact with a foreign object (tennis balls, cages, rocks, etc)

Question 44

Treatment for attrition?

Answer 44

Orthodontic correction Crown reduction Extraction

Question 45

When there is abrasion on the teeth, you should asses for endodontic exposure. How would you do this? How should you treat if there is endodontic exposure?

Answer 45

Dental explorer | — if it enters the pulp chamber —> extract or do root canal

Question 46

Clinical signs of a periapical granuloma/abscess?

Answer 46

``` Nasal disease — sneezing, nasal discharge Maxillary/mandibular abscesses Intramural fistula Retrobulbar disease Pathological fracture ```

Question 47

A draining tract associated with the teeth is called?

Answer 47

Parulis These draining tracts can result due to fact, or endodontic dz

Question 48

What is retrobulbar disease? | Clinical signs?

Answer 48

The roots of maxillary molars 1 and 2 are in the zygomatic arch Swollen Exopthalamus Abscess in back of mouth Pain when opening mouth

Question 49

What is the etiology of gingival hyperplasia?

Answer 49

Focal due to peridontal dz Generalized often seen in boxers Drugs - cyclosporine, Ca channel blockers, anticonvulsant

Question 50

Treatment for gingival hyperplasia?

Answer 50

Remove excessive tissue to return sulcus depth to normal — try to recreate normal scalloped contour After surgery use chrohexidine rinse BID for 2 weeks