5 Interpretation of Dental Radiographs

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Last updated 3:29 AM on 8/20/26
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70 Terms

1
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Interradicular bone

What is 1?

<p>What is 1?</p>
2
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Periodontal ligament space

What is 2?

<p>What is 2?</p>
3
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Root (apical)

What is 3?

<p>What is 3?</p>
4
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Alveolar bone

What is 4?

<p>What is 4?</p>
5
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Cementum

What is 5?

<p>What is 5?</p>
6
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Neck

What is 6?

<p>What is 6?</p>
7
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Crown (coronal)

What is 7?

<p>What is 7?</p>
8
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Enamel

What is 8?

<p>What is 8?</p>
9
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Dentin

What is 9?

<p>What is 9?</p>
10
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Pulp chamber

What is 10?

<p>What is 10?</p>
11
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Furcation

What is 11?

<p>What is 11?</p>
12
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Root canal

What is 12?

<p>What is 12?</p>
13
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304 on the left side = mandible

  • Facing the dog


What arcade and number is 2?

<p>What arcade and number is 2?</p>
14
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Mandibular symphysis

What are the arrows pointing to?

<p>What are the arrows pointing to?</p>
15
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404 on the right side = mandible

  • FACING the dog


What arcade and number is 1?

<p>What arcade and number is 1?</p>
16
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Mandibular canal

What are the dotted lines of 3 supposed to represent?

<p>What are the dotted lines of 3 supposed to represent?</p>
17
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Middle mental foramen (on the mandible)

What is 1?

<p>What is 1?</p>
18
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Caudal mental foramen

What is 2?

<p>What is 2?</p>
19
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305, first premolar with 1 root = mandible

What is 4? What arcade are you in?

<p>What is 4? What arcade are you in?</p>
20
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306 = mandible

What is 5? What arcade are you in?

<p>What is 5? What arcade are you in?</p>
21
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307 = mandible

What is 6? What arcade are you in?

<p>What is 6? What arcade are you in?</p>
22
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308 = mandible

What is 7? What arcade are you in?

<p>What is 7? What arcade are you in?</p>
23
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Mandibular canal

What is 1?

<p>What is 1?</p>
24
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409 = mandible. to the right is rostral meaning this is the right side of the mouth

What is 2? What arcade are you in? Which way is rostral?

<p>What is 2? What arcade are you in? Which way is rostral?</p>
25
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408 = mandible. to the right is rostral meaning this is the right side of the mouth (the low to high peaks point right)

What is 3? What arcade are you in? Which way is rostral?

<p>What is 3? What arcade are you in? Which way is rostral?</p>
26
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Mandibular canal

What is 1?

<p>What is 1?</p>
27
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309 = mandible. To the left is rostral meaning this is the left side of the face

What is 2? Which arcade are you in? Which way is rostral?

<p>What is 2? Which arcade are you in? Which way is rostral?</p>
28
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310 = mandible. the left is rostral meaning left side of the face

What is 3? Which arcade are you in? Which way is rostral?

<p>What is 3? Which arcade are you in? Which way is rostral?</p>
29
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311 = mandible. the left is rostral

What is 4? Which arcade are you in? Which way is rostral?

<p>What is 4? Which arcade are you in? Which way is rostral?</p>
30
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Palatine fissures which are only present in the maxilla

What are the arrows at 1 pointing to?

<p>What are the arrows at 1 pointing to?</p>
31
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103 = right side maxilla

What is 2? What arcade are you in?

<p>What is 2? What arcade are you in?</p>
32
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102 = right side maxilla

What is 3? What arcade are you in?

<p>What is 3? What arcade are you in?</p>
33
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101 = right side maxilla

What is 4? What arcade are you in?

<p>What is 4? What arcade are you in?</p>
34
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201 = left side maxilla

What is 5? What arcade are you in?

<p>What is 5? What arcade are you in?</p>
35
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202 = left side maxilla

What is 6? What arcade are you in?

<p>What is 6? What arcade are you in?</p>
36
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Nasal surface of the alveolar process of the maxilla

What are the arrows of 4 pointing to?

<p>What are the arrows of 4 pointing to?</p>
37
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205 = maxilla's 1st premolar with 1 root (to the left is rostral, meaning youre on left side of the face)

What is 1? What arcade are you in?

<p>What is 1? What arcade are you in?</p>
38
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206 = maxilla

What is 2? What arcade are you in?

<p>What is 2? What arcade are you in?</p>
39
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207 = maxilla. to the left is rostral meaning this is the left side of the face

What is 3? What arcade are you in? Which direction is rostral?

<p>What is 3? What arcade are you in? Which direction is rostral?</p>
40
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208, the 4th maxillary premolar. the arrows are pointing to the large 3 roots of the tooth. this means it has to be the maxilla because the mandible doesn't have any 3 rooted teeth

What is 1? What are the arrows pointing to?

<p>What is 1? What are the arrows pointing to?</p>
41
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209 = maxilla

What is 2? What arcade are you in?

<p>What is 2? What arcade are you in?</p>
42
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210 = maxilla

What is 3? What arcade are you in?

<p>What is 3? What arcade are you in?</p>
43
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Furcation in maxilla

What is this pointing to?

<p>What is this pointing to?</p>
44
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Mandible. There lines represent the original alveolar margin in blue and alveolar margin after periodontal disease attachment loss in red

  • horizontal bone loss


What are these lines supposed to represent and why do we care? Where are you?

<p>What are these lines supposed to represent and why do we care? Where are you?</p>
45
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Furcation

What is 1?

<p>What is 1?</p>
46
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Normal periodontal ligament space

What is 2?

<p>What is 2?</p>
47
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Some vertical bone loss

What is 3?

<p>What is 3?</p>
48
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Horizontal bone loss

What is 4?

<p>What is 4?</p>
49
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Horizontal

What pattern of bone loss is this?

<p>What pattern of bone loss is this?</p>
50
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Vertical

What pattern of bone loss is this?

<p>What pattern of bone loss is this?</p>
51
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The tooth on the left of the image is abnormal (404). Enlarged pulp chamber and root canal shows a diseased fragile tooth. There is also loss of lamina dura

  • secondary dentin is not filling in = dead tooth


Which tooth is normal, which is diseased? How do you know?

<p>Which tooth is normal, which is diseased? How do you know?</p>
52
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Endodontic disease = enlarged pulp cavity with periapical lucency (309)

  • Furcation with horizontal bone loss


What is happening here?

<p>What is happening here?</p>
53
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NORMAL lamina dura = the normal bright white line below the canine tells you the darker space between the tooth and the line is actually NOT apical bone loss and is completely normal

Describe what you are seeing here

<p>Describe what you are seeing here</p>
54
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The right side of the image is healthy. You can see the bright white lamina dura and healthy periodontal ligament between the tooth and dura.

The left side of the image shows the periodontal ligament breaking apart because there is NO normal lamina dura, meaning the dark space is all apical bone loss

Which side is normal? Abnormal? Describe what you are looking at

<p>Which side is normal? Abnormal? Describe what you are looking at</p>
55
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Periapical lucency

What are the arrows pointing to?

<p>What are the arrows pointing to?</p>
56
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stage 1, 2, 3, 4a, 4b, 4c, and 5

Name the tooth resorption stages

57
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Cats

Tooth resorption is more common in *cats or dogs*?

58
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Stage 2

Which tooth resorption stage?

<p>Which tooth resorption stage?</p>
59
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Stage 3

Which tooth resorption stage?

<p>Which tooth resorption stage?</p>
60
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Stage 4a

Which tooth resorption stage?

<p>Which tooth resorption stage?</p>
61
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Stage 1: periodontal ligament space is still apparent but you should extract the tooth with open surgical technique

Which tooth resorption stage? What is happening and what should you do?

<p>Which tooth resorption stage? What is happening and what should you do?</p>
62
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Stage 2: there is a lytic area on the top of the tooth and decrease radiopacity of part of the tooth, narrowing of the periodontal ligament in some areas.

  • Crown amputation only with intentional root retention indicated (aka leave roots behind because the cat will resorb them and has already started)


Which tooth resorption stage? What is happening and what should you do?

<p>Which tooth resorption stage? What is happening and what should you do?</p>
63
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Stage 3: for the top arrow, extract the root segment, but for the bottom arrow crown amputation only for this root segment. There has been lytic activity in this tooth, there is no normal structure, and the periodontal ligament is gone

Note: stage 3 is a combination of type 1 and 2

Which tooth resorption stage? What is happening and what should you do?

<p>Which tooth resorption stage? What is happening and what should you do?</p>
64
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Mandibular premolars often starting in the roots

Tooth resorption is less common in dogs. If it does occur, where does it happen?

65
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Tooth resorption

What is happening here in this dog?

<p>What is happening here in this dog?</p>
66
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Fractured root tips

What is happening here?

<p>What is happening here?</p>
67
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Roots

  • If you CANNOT safely remove the roots = REFER


What do you have to make sure you DO NOT LEAVE BEHIND when doing dental extractions?

68
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Dilacerated mesial root (it is a fracture risk if you try and remove). Occurs when small breed dogs have large teeth in relation to the size of their mandibles

  • REFER


What is this? Why does it commonly occur?

<p>What is this? Why does it commonly occur?</p>
69
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The tooth has a fracture (around the neck i think) and apical lucency

Describe this image

<p>Describe this image</p>
70
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Roots are left behind

What is happening in this post extraction radiograph?

<p>What is happening in this post extraction radiograph?</p>