Topic 3,4,5

Question 1

What should one observe in an oral exam?

Answer 1

Teeth, oral cavity, face, facial bones, TMJ, salicary glands and lymph nodes.

Question 2

What 5 things to consider when evaluation occlusion?

Answer 2

Incisor relationship, canine occlusion, premolar alignment, pm and m occlusion, individual teeth position.

Question 3

What is on the checklist for an oral exam?

Answer 3

Oropharynx, lips, cheeks, oral MM, hard palate, floor of mouth and tounge, teeth, periodontum

Question 4

Why do we find the heaviest calculus at the buccal surface of the upper cheek teeth?

Answer 4

Because of the parotid salivary duct opening.

Question 5

What do you call the little groove under a dogs nose.

Answer 5

Philtrum.

Question 6

What is the little flap under the tounge called?

Answer 6

Frenulum.

Question 7

What are the weird papilla on the side of a dogs lips?

Answer 7

Salivary papilla.

Question 8

What should we be looking at when examining teth?

Answer 8

Dentition, any decisuous teeth, missing teeth, extra teeth, abnormaliaties in size shape, wear patterns, pathlogy.

Question 9

What is plaque?

Answer 9

Soft gelatinous matrix of bacteria and bacterial by-products.

Question 10

How do we classify plaque?

Answer 10

light, moderate, heavy.

Question 11

How do we assess gingivitis? What numbers are used?

Answer 11

Redness, swellling, bleeding. 0-3

Question 12

When do we see psudeopockets?

Answer 12

With gingival enlargement.

Question 13

What is the problem with probe depth at gingival recession.

Answer 13

It might seem normal even though there is bone loss.

Question 14

Name the criteria for Stage 1-4 PD disease.

Answer 14

Stage 1- Gingivitis only.
Stage2- Less than 25% bone loss. Grade 1 furcation.
Stage 3- 25-50% attachement loss. Grade 2 furcation.
Stage4-Over 50% attachment loss. Grade 3 furcation.

Question 15

Name a few indications for taking an X-ray.

Answer 15

Missing tooth, extraction, prognathism, resoptive lesions, gingival ulcers, fracture etc

Question 16

What are legal reasons for xrays.

Answer 16

Part of the file, to prove to clients why you did what you did, to see if show dogs have full teeth.

Question 17

What is a practice management reason to take xrays?

Answer 17

Makes $$ to pay for toys. Diagnostic tool.

Question 18

What is the exposure variable on xray machines?

Answer 18

MAs ( time)

Question 19

What are the 2 types of radiology. What are the subcategories of the second type?

Answer 19

Standard ( radiographic film ). Digital - Indirect ( CR ) and Direct ( DR )

Question 20

What 2 sizes of dental film do we use?? What are they for?

Answer 20

2 (periapical) and 4(occlusal)

Question 21

What is the name of the raised dot on the xray film?

Answer 21

Embossure.

Question 22

How do the dental films reduce scatter radiation?

Answer 22

Lead foil behind the film.

Question 23

/CR INDIRECT digital radiology uses what x-ray medium? How does it work?

Answer 23

Phosphor plates. Image is scanned and film can be wiped and resused.

Question 24

What are the advantages and disadvantages of CR Indirect raiography?

Answer 24

+ : Flexible, long life, not expensive, reusable
-: Sensor plates have to be taken out of mouth to see image ( repositioning issues ), takes more time than direct, poor quality.

Question 25

Direct Digital uses what to capture the image?

Answer 25

Sensor connected to computer.

Question 26

Advantage and disadvantage of direct digital?

Answer 26

+ : fast, repositioning is easy, better image

-: Expensive, small sensor, not good for small mouth, fragile.

Question 27

How far should you be from xray tube

Answer 27

6 feet.

Question 28

What is the difference between intra oral and extra oral xrays?

Answer 28

Intra- film in mouth

extra- head on casette.

Question 29

Which teeth can we xray using parallel?

Answer 29

Mandibular molars and pm.

Question 30

When doing the bisecting angle if you make your angle less than 90 degress ( acute ) what happens?

Answer 30

Foreshortening

Question 31

When doing bissecting if you make your angle bigger than 90 degrees ( obtuse ) what happens?

Answer 31

Elongation.

Question 32

What is the intraoal near parallel view used for in cats?

Answer 32

To get zygomatic arch.

Question 33

What xray technique allows us to see all 3 roots of the pm4? How many xrays does it take?

Answer 33

Parallax effect. 3 shots.

Question 34

If beam is directed at tooth instead of bisector what happens

Answer 34

Image too long

Question 35

if beam directed at film instead of tooth, what happens?

Answer 35

Image too short

Question 36

how often should developer be changed?

Answer 36

Every 10-15 films.

Question 37

When something is radiodense it appears what color and is called radio_____?

Answer 37

White. Radioopaque.

Question 38

When something is black on an xray it is called?

Answer 38

Radiolucent

Question 39

When will you see cementum on an xray?

Answer 39

Only when it’s hyperplastic.

Question 40

What are the black lines you see inside of the tooth? Toegther they are known as? Are they radiolucent or radioopaque?

Answer 40

The pulp chamber and canal. Pulpcavity. Radiolucent.

Question 41

The PL appears radiolucent or dense? Where is it seen?

Answer 41

Radiolucent. Around tooth root. Black.

Question 42

What is the black space called just lateral to the tooth? It will degrade horizonally or vertcally.

Answer 42

The alveolar crest.

Question 43

What is the foramen called where vessels enter to nourish the pulp?

Answer 43

The apical delta.

Question 44

As younger dog will have more or less radio lucency inside the tooth. WHat does it represent?

Answer 44

More radiolucent. Bigger pulp cavity in pups.