Tooth Morphology Flashcards
1
Q
At what age is the first evidence of calcification of the maxillary and mandicular 1’s seen?
A
3-4 months
2
Q
At what age is the first evidence of calcification of the maxillary 2’s seen?
A
10-12 months
3
Q
At what age is the first evidence of calcification of the maxillary 3’s seen?
A
4-5 months
4
Q
At what age is the first evidence of calcification of the maxillary 4’s?
A
1.5-1.75 years
5
Q
At what age is the first evidence of calcification of the maxillary 5’s seen?
A
2-2.5 years
6
Q
At what age is the first evidence of calcification of the maxillary 6’s seen>
A
At birth
7
Q
At what age is the first evidence of calcification of the maxillary 7’s seen?
A
2.5-3 years
8
Q
At what age is the first evidence of calcification of the maxillary 8’s seen?
A
7-9 years
9
Q
At what age is the first evidence of calcification of the mandibular 1’s seen?
A
3-4 months
10
Q
At what age is the first evidence of calcification of the mandibular 2’s seen?
A
3-4 months
11
Q
At what age is the first evidence of calcification of the mandibular 3’s seen?
A
4-5 months
12
Q
At what age is the first evidence of calcification of the mandibular 4’s seen?
A
1.75-2 years
13
Q
At what age is the first evidence of calcification of the mandibular 5’s seen?
A
1.25-2.5 years
14
Q
At what age is the first evidence of calcification of the mandibular 6’s seen?
A
At birth
15
Q
At what age is the first evidence of calcification of the mandibular 7’s seen?
A
2.5-3 years
16
Q
At what age is the first evidence of calcification of the mandibular 8’s seen?
A
8-10 years
17
Q
At what age is the crown completed in the maxillary and mandibular 1’s?
A
4-5 years
18
Q
At what age is the crown completed in the maxillary and mandibular 2’s?
A
4-5 years
19
Q
At what age is the crown completed in the maxillary and mandibular 3’s?
A
6-7 years
20
Q
At what age is the crown completed in the maxillary and mandibular 4’s?
A
5-6 years
21
Q
At what age is the crown completed in the maxillary and mandibular 5’s?
A
6-7 years
22
Q
At what age is the crown completed in the maxillary and mandibular 6’s?
A
2.5-3 years
23
Q
At what age is the crown completed in the maxillary and mandibular 7’s?
A
7-8 years
24
Q
At what age is the crown completed in the maxillary and mandibular 8’s?
A
12-16 years
25
What tooth is the maxillary and mandibular 1?
Central incisor
26
What tooth is the maxillary and mandibular 2?
Lateral incisor
27
What tooth is the maxillary and mandibular 3?
Canine
28
What tooth is the maxillary and mandibular 4?
First premolar
29
What tooth is the maxillary and mandibular 5?
Second premolar
30
What tooth is the maxillary and mandibular 6?
First molar
31
What tooth is the maxillary and mandibular 7
Second molar
32
What tooth is the maxillary and mandibular 8?
Third molar
33
At what age do the maxillary 1's erupt?
7-8 years
34
At what age do the maxillary 2's erupt?
8-9 years
35
At what age do the maxillary 3's erupt?
11-12 years
36
At what age do the maxillary 4's erupt?
10-11 years
37
At what age do the maxillary 5's erupt?
10-12 years
38
At what age do the maxillary 6's erupt?
6-7 years
39
At what age do the maxillary 7's erupt?
12-13 years
40
At what age do the maxillary 8's erupt?
17-21 years
41
At what age do the mandibular 1's erupt?
6-7 years
42
At what age do the mandibular 2's erupt?
7-8 years
43
At what age do the mandibular 3's erupt?
9-10 years
44
At what age do the mandibular 4's erupt?
10-12 years
45
At what age do the mandibular 5's erupt?
11-12 years
46
At what age do the mandibular 6's erupt?
6-7 years
47
At what age do the mandibular 7's erupt?
12-13 years
48
At what age do the mandibular 8's erupt?
17-21 years
49
At what age does the root complete formation in the maxillary 1's?
10 years
50
At what age does the root complete formation in the maxillary 2's?
11 years
51
At what age does the root complete formation in the maxillary 3's?
13-15 years
52
At what age does the root complete formation in the maxillary 4's?
12-13 years
53
At what age does the root complete formation in the maxillary 5's?
12-14 years
54
At what age does the root complete formation in the maxillary 6's?
9-10 years
55
At what age does the root complete formation in the maxillary 7's?
14-16 years
56
At what age does the root complete formation in the maxillary 8's?
18-25 years
57
At what age does the root complete formation in the mandibular 1's?
9 years
58
At what age does the root complete formation in the mandibular 2's?
10 years
59
At what age does the root complete formation in the mandibular 3's?
12-14 years
60
At what age does the root complete formation in the mandibular 4's?
12-13 years
61
At what age does the root complete formation in the mandibular 5's?
13-14 years
62
At what age does the root complete formation in the mandibular 6's?
9-10 years
63
At what age does the root complete formation in the mandibular 7's?
14-15 years
64
At what age does the root complete formation in the mandibular 8's?
18-25 years
65
What is the mesial surface?
The surface closest to the midline
66
What is the distal surface?
The tooth surface furthest from the centre line
67
What is the buccal surface?
Tooth surface nearest the inside of the cheek
68
What is the labial surface?
Tooth surface nearest to the inside of the lip
69
What is the lingual surface?
Mandibular tooth surface nearest to the tongue
70
What is the palatal surface?
Maxillary tooth surface nearest to the palate
71
What is the occlusal surface?
The biting or chewing surface of the premolars and molars
72
What are the cusps?
Sharp, pointed surface extensions on the pre molars and molars
73
What is the Incisal edge?
The sharp cutting edges of the incisors and canine teeth
74
What are the 5 coronal features of the tooth?
1. Outline form of the crown
2. Cuspal form (number, position, shape size)
3. Incisal form (shape of edges and incisal corners)
4. Pits/Fossae (groove numbers and positioning)
5. Fissure pattern on occlusal surface
75
What are pits in the teeth?
They are depressions on the occlusal surface
76
What are the 9 outlines (shapes) the posterior teeth can have?
```
Pentagon
Rectangular
Rhomboid
Heart
Oval
Diamond
Square
Rounded
Angular
```
77
What are the 3 outlines (shapes) the posterior teeth can have?
Trapezium
Pentagon
Wedge/triangular
78
How can you distinguish between a maxillary molar and mandibular molar?
Maxillary molars have 3 roots (Mesio-buccal, disto-buccal & palatal roots)
Mandibular molars have 2 roots (Mesial root & distal roots teeth)
79
Describe the palatal root
Largest root
| Circular in cross section
80
Describe the buccal roots
Slender
| Flattened messy-distally
81
Describe full the upper left first permanent molar
Classification: UL6 or 26
A large tooth with a rhomboidal occlusal outline
Has 4 main cusps largest to smallest:, mesio-palatal (MP), mesio-buccal (MB), disto-buccal (DB) & disto-palatal (DP)
1 accessory mesio-palatal cusp (the cusp of carabelli)
Messial fossa and a mid buccal fossa
Oblique ridge running diagonally from the MP to the DB dividing the occlusal surface
Disto palatal fissures runs from the distal fossa and ends in the palatal groove
3 roots; a palatal root which is longer and circular in cross section. The buccal roots are more slender and flattened, mesio-buccal root larger and wider than disto-buccal root.
82
What is an overjet?
Horizontal distance between the upper incisor edge and the lower incisor edge
83
What is an overbite?
Vertical distance, coverage of lower incisor teeth by the upper incisor teeth
84
What is the intercuspal position?
When a patient closes their back teeth so that their teeth are maximally meshed together
the unrestored dentition occlusal contacts provide stability where a cusp fits into a fossa or where it meets a marginal ridge of teeth in the opposing arch
85
What is our professional responsibility in regard to dental records?
They must be accurate, truthful and reflect the true state of events seen at the time
They must also be written at the time of the appointment
They are legal records
86
What can dental records be used as?
They ca be used as evidence by the GDC following a complaint of a dental professional
They are crucial and vital evidence for forensic investigations in terms of criminal trials
87
What 3 things can forensic dentists do?
Bite mark analysis
Disaster victim identification
Dental human identification
88
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 1's
```
a. 3-4 months
b. 4-5 years
c. 7-8 years
d. 10 years
89
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 2's
```
a. 10-12 months
b. 4-5 years
c. 8-9 years
d. 11 years
90
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 3's
```
a. 4-5 months
b. 6-7 years
c. 11-12 years
d. 13-15 years
91
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 4's
```
a. 1.5-1.75 years
b. 5-6 years
c. 10-11 years
d. 12-13 years
92
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 5's
```
a. 2-2.5 years
b. 6-7 years
c. 10-12 years
d. 12-14 years
93
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 6's
```
a. At birth
b. 2.5-3 years
c. 6-7 years
d. 9-10 years
94
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 7's
```
a. 2.5-3 years
b. 7-8 years
c. 12-13 years
d. 14-16 years
95
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the maxillary 8's
```
a. 7-9 years
b. 12-16 years
c. 17-21 years
d. 18-25 years
96
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 1's
```
a. 3-4 months
b. 4-5 years
c. 6-7 years
d. 9 years
97
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 2's
```
a. 3-4 months
b. 4-5 years
c. 7-8 years
d. 10 years
98
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 3's
```
a. 4-5 months
b. 6-7 years
c. 9-10 years
d. 12-14 years
99
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 4's
```
a. 1.5-2 years
b. 5-6 years
c. 10-12 years
d. 13-14 years
100
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 5's
```
a. 1.25-2.5 years
b. 6-7 years
c. 11-12 years
d. 12-13 years
101
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 6's
```
a. At birth
b. 2.5-3 years
c. 6-7 years
d. 9-10 years
102
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 7's
```
a. 2.5-3 years
b. 7-8 years
c. 12-13 years
d. 14-15 years
103
```
State the
a. First evidence of calcification
b. Year crown is completed
c. When the tooth erupts
d. root completion year
Of the mandibular 8's
```
a. 8-10 years
b. 12-16 years
c. 17-21 years
d. 18-25 years
