Tooth Morphology Flashcards
(97 cards)
1
Q
At what age is the first evidence of calcification of the maxillary 8’s seen?
A
7-9 years
2
Q
At what age is the first evidence of calcification of the mandibular 1’s seen?
A
3-4 months
3
Q
At what age is the first evidence of calcification of the mandibular 2’s seen?
A
3-4 months
4
Q
At what age is the first evidence of calcification of the mandibular 3’s seen?
A
4-5 months
5
Q
At what age is the first evidence of calcification of the mandibular 4’s seen?
A
1.75-2 years
6
Q
At what age is the first evidence of calcification of the mandibular 5’s seen?
A
1.25-2.5 years
7
Q
At what age is the first evidence of calcification of the mandibular 6’s seen?
A
At birth
8
Q
At what age is the first evidence of calcification of the mandibular 7’s seen?
A
2.5-3 years
9
Q
At what age is the first evidence of calcification of the mandibular 8’s seen?
A
8-10 years
10
Q
At what age is the crown completed in the maxillary and mandibular 1’s?
A
4-5 years
11
Q
At what age is the crown completed in the maxillary and mandibular 2’s?
A
4-5 years
12
Q
At what age is the crown completed in the maxillary and mandibular 3’s?
A
6-7 years
13
Q
At what age is the crown completed in the maxillary and mandibular 4’s?
A
5-6 years
14
Q
At what age is the crown completed in the maxillary and mandibular 5’s?
A
6-7 years
15
Q
At what age is the crown completed in the maxillary and mandibular 6’s?
A
2.5-3 years
16
Q
At what age is the crown completed in the maxillary and mandibular 7’s?
A
7-8 years
17
Q
At what age is the crown completed in the maxillary and mandibular 8’s?
A
12-16 years
18
Q
What tooth is the maxillary and mandibular 1?
A
Central incisor
19
Q
What tooth is the maxillary and mandibular 1?
A
Central incisor
20
Q
What tooth is the maxillary and mandibular 2?
A
Lateral incisor
21
Q
What tooth is the maxillary and mandibular 3?
A
Canine
22
Q
What tooth is the maxillary and mandibular 4?
A
First premolar
23
Q
What tooth is the maxillary and mandibular 5?
A
Second premolar
24
Q
What tooth is the maxillary and mandibular 6?
A
First molar
25
What tooth is the maxillary and mandibular 7
Second molar
26
What tooth is the maxillary and mandibular 8?
Third molar
27
At what age do the maxillary 1's erupt?
7-8 years
28
At what age do the maxillary 2's erupt?
8-9 years
29
At what age do the maxillary 3's erupt?
11-12 years
30
At what age do the maxillary 4's erupt?
10-11 years
31
At what age do the maxillary 5's erupt?
10-12 years
32
At what age do the maxillary 6's erupt?
6-7 years
33
At what age do the maxillary 7's erupt?
12-13 years
34
At what age do the maxillary 8's erupt?
17-21 years
35
At what age do the mandibular 1's erupt?
6-7 years
36
At what age do the mandibular 2's erupt?
7-8 years
37
At what age do the mandibular 3's erupt?
9-10 years
38
At what age do the mandibular 4's erupt?
10-12 years
39
At what age do the mandibular 5's erupt?
11-12 years
40
At what age do the mandibular 6's erupt?
6-7 years
41
At what age do the mandibular 7's erupt?
12-13 years
42
At what age do the mandibular 8's erupt?
17-21 years
43
At what age does the root complete formation in the maxillary 1's?
10 years
44
At what age does the root complete formation in the maxillary 2's?
11 years
45
At what age does the root complete formation in the maxillary 3's?
13-15 years
46
At what age does the root complete formation in the maxillary 4's?
12-13 years
47
At what age does the root complete formation in the maxillary 5's?
12-14 years
48
At what age does the root complete formation in the maxillary 6's?
9-10 years
49
At what age does the root complete formation in the maxillary 7's?
14-16 years
50
At what age does the root complete formation in the maxillary 8's?
18-25 years
51
At what age does the root complete formation in the mandibular 1's?
9 years
52
At what age does the root complete formation in the mandibular 2's?
10 years
53
At what age does the root complete formation in the mandibular 3's?
12-14 years
54
At what age does the root complete formation in the mandibular 4's?
12-13 years
55
At what age does the root complete formation in the mandibular 5's?
13-14 years
56
At what age does the root complete formation in the mandibular 6's?
9-10 years
57
At what age does the root complete formation in the mandibular 7's?
14-15 years
58
At what age does the root complete formation in the mandibular 8's?
18-25 years
59
What is the mesial surface?
The surface closest to the midline
60
What is the distal surface?
The tooth surface furthest from the centre line
61
What is the buccal surface?
Tooth surface nearest the inside of the cheek
62
What is the labial surface?
Tooth surface nearest to the inside of the lip
63
What is the lingual surface?
Mandibular tooth surface nearest to the tongue
64
What is the palatal surface?
Maxillary tooth surface nearest to the palate
65
What is the occlusal surface?
The biting or chewing surface of the premolars and molars
66
What are the cusps?
Sharp, pointed surface extensions on the pre molars and molars
67
What is the Incisal edge?
The sharp cutting edges of the incisors and canine teeth
68
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
69
What are pits in the teeth?
They are depressions on the occlusal surface
70
What are the 9 outlines (shapes) the posterior teeth can have?
Pentagon
Rectangular
Rhomboid
Heart
Oval
Diamond
Square
Rounded
Angular
71
What are the 3 outlines (shapes) the posterior teeth can have?
Trapezium
Pentagon
Wedge/triangular
72
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)
73
Describe the palatal root
Largest root
Circular in cross section
74
Describe the buccal roots
Slender
Flattened messy-distally
75
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.
76
What is an overjet?
Horizontal distance between the upper incisor edge and the lower incisor edge
77
What is an overbite?
Vertical distance, coverage of lower incisor teeth by the upper incisor teeth
78
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
79
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
80
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
81
What 3 things can forensic dentists do?
Bite mark analysis
Disaster victim identification
Dental human identification
82
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
83
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
84
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
85
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
86
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
87
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
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 7's
a. 2.5-3 years
b. 7-8 years
c. 12-13 years
d. 14-16 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 8's
a. 7-9 years
b. 12-16 years
c. 17-21 years
d. 18-25 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 mandibular 1's
a. 3-4 months
b. 4-5 years
c. 6-7 years
d. 9 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 mandibular 2's
a. 3-4 months
b. 4-5 years
c. 7-8 years
d. 10 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 mandibular 3's
a. 4-5 months
b. 6-7 years
c. 9-10 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 mandibular 4's
a. 1.5-2 years
b. 5-6 years
c. 10-12 years
d. 13-14 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 mandibular 5's
a. 1.25-2.5 years
b. 6-7 years
c. 11-12 years
d. 12-13 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 mandibular 6's
a. At birth
b. 2.5-3 years
c. 6-7 years
d. 9-10 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 7's
a. 2.5-3 years
b. 7-8 years
c. 12-13 years
d. 14-15 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 8's
a. 8-10 years
b. 12-16 years
c. 17-21 years
d. 18-25 years
