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JVD > 2019 Bellei, clinical radiographic study of unerupted teeth in dogs and cats 73 cases > Flashcards

2019 Bellei, clinical radiographic study of unerupted teeth in dogs and cats 73 cases Flashcards

Frontier - M Gracis

1
Q

Give reason of unerupted tooth that does not emerge within expected time frame

A

Lack of space
Fibrous tissue - impacted tooth
lack of eruption force - embedded tooth

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2
Q

What was the main purpose of this retrospective study?

A

Describe canine and feline with unerupted teeth and assess the prevalence of dentigerous cysts and tumors

Possible factors in cystic development

Radiographic and histological features were defined and compared

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3
Q

Which tooth is the most affected in dogs ?

A

Permanent 1st Premolar in
canine teeth

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4
Q

What is the inclination ?

A

It measures as an angle between the long axis of the tooth and the occlusal plane

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5
Q

What is classification system by Winter?

A

A score to describe the difficulty of impacted molar extraction in humans

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6
Q

Winter classification system

A

Vertical
Mesioangular,
Horizontal
Distoangular
Transverse
Inverted

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7
Q

Most common dog breed that has unerupted tooth ?

A

Boxer 28.9%

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8
Q

Main clinical complain

A

78 % incidental findings of unerupted tooth

10.9% swelling /mass at or close to unerupted tooth

9.6% missing tooth

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9
Q

Which teeth were unerupted in the dog - o

A

o 78.7% 1st premolar tooth
o 7.4% canine teeth
o 7.4 % mandibular 3rd premolar tooth
o 4.6% mandibular incisor teeth
o 0.9% mandibular 2nd molar tooth
o 0.9% maxillary 4th Premolar tooth

42% had multiple unerupted teeth

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10
Q

Most common cause for 1st premolar missing in dog?

A

lack of eruption

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11
Q

How many % of dentigerous cysts were diagnosed in dogs with unerupted teeth ?

A

44.4% of unerupted teeth a dentigerous cysts was diagnosed in dogs

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12
Q

How many cysts were diagnosed in brachycephalic breeds?

A

77.3%
Boxer , Pug, Maltese, Shi Tzu

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13
Q

how many cysts were diagnosed in non brachycephalic breeds

A

22.7% - Lab retriever most common

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14
Q

Which type is more prone for cysts associated with unerupted teeth brachycephalic or non brachycephalic ?

A

brachycephalic 77.3%
Non brachycephalic 22.7%

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15
Q

most common breed that has unerupted teeth with DTC

A

Boxer 90%, 33.3 Labrador retriever

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16
Q

How many intact male dogs have DTC ?

A

60.4%

17
Q

which gender has the most DTC

A

intact male dogs 60.4% , 16.7% spayed female dogs

18
Q

what is the depth of inclusion of unerupted teeth in dogs ?

A

23.6& of unerupted teeth were in complete bone inclusion

76.4% unerupted teeth were in soft tissue inclusion

19
Q

what was the most common inclination angle according to Winter system in cats ?

A

vertical inclination

20
Q

What is the inclinations angle in dogs of unerupted teeth according to Winter system?

A

39.8% Horizontal position

21
Q

What is the least inclination angle of unerupted tooth in the dog

A

mesioangular position 0.9%

22
Q

Define tooth eruption

A

axial movement of the tooth from nonfunctional in the bone to functional position

23
Q

What is REE ?

A

reduced enamel epithelium

24
Q

Explain role of REE in tooth eruption

A

REE covers the developing tooth - fuses with gingiva during the process . REE produces proteases that break down connective tissue , decreases tissue resistance

25
Q

What is the role of dental follicle in tooth eruption?

A

o Dental follicle by modulating bone remodeling- produces growth factors that promote differentiation of monocytes into osteoclast to create a path to eruption

26
Q

tooth eruption fails because of 2 mechanism

A

mechanical obstruction - physical barrier
impaired eruption mechanism - e.g. dysfunction REE

27
Q

which dog type and breed was over presented and %?

A

Brachycephalic - breed 57.9%
Boxer 28.9% of all canines in this study

28
Q

How many of the Boxer developed DTC in unerupted teeth

A

78%

29
Q

What is a non succedaneous teeth ?

A

permanent molars that are not succeeded by primary dentition

30
Q

The majority of unerupted teeth were found in maxillary or mandible and %?

A

mandible 91%

31
Q

which was the most common unerupted tooth associated with cystic development in the dog ?

A

mandibular 1st PM

32
Q
A

JVD (20 decks)

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