Tooth ID & Anatomy Flashcards
How many permanent teeth in mouth?
32
How many primary teeth in mouth?
20
Do primary teeth have pre-molars?
No, the molars are replaced by pre-molars and all permanent molars are brand new.
Most widely used system in the US among general dentist
Universal System (1-32) , Upper right to lower right, Circle.
Ex. 2 premolars
5A & 5B
Result of an extra tooth of the same kind and how to number it in the universal system
What are the 4 canine in the universal system
6,11,22,27
What are the 4 central incisors in the universal system?
8,9,24,25
Universal numbering system for primary teeth
A-T
What are the upper teeth range in primary universal?
A-J
Apple Jacks
What are the lower teeth range in primary universal?
K-T
k-mart
What are the canines in primary
C,H,M,R
Crazy head must return
System for tooth numbering used by many orthodontist & Oral surgeons
1-8 tooth
A-E tooth
Palmer System
Tooth #11 what is palmer?
L3
Tooth # 3 what is palmer?
6
Used in other countries, also called the federation denture Internationale (FDI) system
1-8 tooth.
1st,2nd,3rd,4th quadrant
International System
Tooth #11 what is FDI?
FDI= 23 (3rd from central, 2nd quadrant)
Kid FDI system how to number teeth?
Tooth are 1-5 and quadrants go 5-8 clockwise
Tooth D, FDI system?
=52 (2nd from center, upper right quadrant=5)
I 2/2 C 1/1 M 2/2
Primary dentition fromulae
Per side.
2 upper incisior / 2 lower incisor
1 upper canine / 1 lower canine
2 upper molars/ 2 lower molars
I 2/2 C 1/1 PM 2/2 M 3/3
Permanent dentition fromulae
Per side.
2 upper incisior / 2 lower incisor
1 upper canine / 1 lower canine
2 upper pre-molars/ 2 lower pre molars
3 upper molars/ 3 lower molars
Deciduous
Primary dentition, eventually shed.
How many teeth are present in one quadrant of a complete adult (permanent) dentition?
8
What class of teeth is present in the permanent dentition that is NOT present in the primary dentition?
Pre-molar
In a permanent dentition, the fifth tooth from the midline is a
Premolar
The posterior teeth in the permanent dentition include which of the following?
Premolars and molars only
Which permanent tooth erupts into the space previously held by the primary second molar?
Second premolar
How many teeth are present in one arch of the adult dentition?
16
How many teeth are present in one arch of the primary dentition?
10
How many incisors are present in the complete adult dentition?
8 (don’t include canines!!)
How many molars are present in the primary dentition?
8
How many molars are present in each arch of the adult dentition?
6
What is the fourth tooth from the midline in the primary dentition?
First molar
If you read an article in a British dental journal that refers to tooth number 48, you would suspect that the authors were using the International Numbering System. What Universal number (or letter) would they be talking about?
32
Using the Universal Numbering System, what numbers are used to identify maxillary canines?
6, 11
If you read an article in a British dental journal that refers to tooth number 55, you would suspect that the authors were using the International Numbering System. What Universal number (or letter) would they be talking about?
A
If an orthodontist wrote about tooth (L5) , what would the Universal number be?
13
What are the Universal numbers of the permanent mandibular first molars? ___
19,30
Fill in the blanks: If you are referring to the Universal tooth 27, what is its position from the midline? ___________ What is its arch? ___________ In which quadrant is it located? ___________
27, Right of the midline, mandibular, lower right quadrant= Canine.
Enamel covers the portion of the tooth known as the ____ and cementum covers the portion of the tooth know as the ____
Anatomic crown, anatomic root
the relatively white, protective external surface layer of the anatomic crown. It is highly calcified or mineralized and is the hardest substance in the body. Its mineral content is 95% calcium hydroxyapatite
Enamel
the dull yellow external layer of the anatomic root. The _______ is very thin, especially next to the part of the root where the crown joins with the root
Cementum
junction between the enamel covering the anatomic crown and the cementum covering the anatomic root.
Cementoenamel junction
Another name for the CEJ, surrounds the neck of the cervix.
Cervical Line
hard yellowish tissue underlying the enamel and cementum, and makes up the bulk of the inner portion of each tooth crown and root.
Dentin
the inner surface of the enamel where enamel joins dentin. This junction can be best seen on a radiograph
dentinoenamel junction DEJ
he inner surface of cementum where cementum joins dentin
cementodentinal junction
soft, nonmineralized connective tissue containing a rich supply of blood vessels and nerves located in the cavity or space in the center of the crown and root called the pulp cavity.
Formative, sensory, nutrative
Pulp
The pulp cavity has a coronal portion toward the crown
pulp chamber
Portion of the pulp that is within the roots
Pulp/root canal
Hole that nears the the root tip.Nerve and blood vessels enter the pulp canals.
Apical Foramin
Which tooth junctions are NOT normally visible on a handheld intact tooth?
Dentinoenamel
dentinocemental
dentinopulpal
Which mineralized tissue is the hardest?
Enamel
What tissue forms the outer boundary of almost all of a pulp chamber?
Dentin
Which of the following is (are) functions of the pulp?
-Sense pain
-Provide nutrition to dentin
-Produce new dentin
the supporting tissues of the teeth in the mouth, including surrounding alveolar bone, the gingiva, the periodontal ligament, and the outer, cementum layer of the tooth roots
Periodontum
the portion of the upper (maxillary) or lower (mandibular) bones that surrounds the roots of the teeth
Alveolar bone
Part of the soft tissue in the mouth that covers the alveolar bone of the jaws and is the only part of the periodontium that is visible in a healthy mouth.
Gingiva
Gingiva that is firmly bound to the underlying alveolar bone and is called
attached gingiva
Marginal gingiva, which is a collar of thin gingiva that surrounds each tooth and, in health, adapts to the tooth but provides access i
Free gingiva
space between the free gingiva and the tooth,
Gingival Sulcus
the edge of the gingiva closest to the biting or chewing surfaces of the teeth
Gingival margin
tooth is in the mouth, the amount of the tooth that is visible in the oral cavity (i.e., not covered with gingiva) `
clinical crown
the portion of the tooth that is not visible since it is covered with gingiva
Clinical Root
Compare the clinical crown & root of a partially erupted tooth of a 10 year old compared to the anatomic crown
Clinical crown of 10 year old is much shorter than anatomic crown.
The clinical root is is much longer than the anatomic root since more is covered by gingiva.
Which statement(s) is (are) likely to be true on a person with a barely erupted tooth 9?
The clinical crown is smaller than the anatomic crown.
The clinical root is larger than the anatomic root.
Which statement(s) is (are) true regarding a tooth on a person who has lost most of the bone and gingiva surrounding the tooth?
Clinical crown longer than anatomical
Clinical root is smaller than anatomic.
Structures of periodontium
-Alveolar bone
-PDL
-Gingival margin
-Attached gingiva
The periodontal ligament attaches the alveolar bone to what tooth tissue?
Cementum
