names and numbers - northshore dental assisting … chapter 4 dental ethics (p.28-32) ... names and...

6610 NE 181st Street, Suite #1, Kenmore, WA 98028 www.northshoredentalacademy.com425.408.9400

CLASS SYLLABUS

1Copyright © 2018

READ CHAPTER 2 The Professional Dental Assistant (p.13-19) No Key Terms Recall Questions: 1, 2, 3, 4, 5 and 6

READ CHAPTER 3 Dental Health Care Team (p.20-27) No Recall Questions

KNOW THESE TERMS: Dentist, Dental Assistant, Hygienist, Lab Technician, Supply Person or Dental Supply Representative, Endodontist, Periodontist, Pedontist, Prosthodontics, Oral Maxillofacial Surgery, Orthodontist

READ CHAPTER 4 Dental Ethics (p.28-32) No Key Terms No Recall Questions

READ CHAPTER 8 Oral Embryology and Histology (p.81-104) Recall Questions: 14, 15, 17 and 18

KNOW THESE TERMS: Apex, Apical Foramen, Cementum, Crown, Dentin, Enamel, Periodontal Ligament, Pulp Chamber, Root

READ CHAPTER 9 Head and Neck Anatomy (p.105-129) No Key Terms No Recall Questions

KNOW THE DEFINITION OF: Temporomandibular Joint (TMJ) and the disease referred to as TMJD.

READ CHAPTER 10 Landmarks of the Face, Oral Cavity and Gag Reflex (p.130-138) No Key Terms Recall Questions: 3, 4, 5, 6, 7, 9, 10 and 12

READ CHAPTER 11 Overview of Dentition (p.139-153) Key Terms: Anterior, Curve of Spee, Deciduous, Dentition, Embrasure, Interproximal Space, Mandibular Arch, Occlusion, Occlusal Surface, Posterior, Proximal, Quadrant

KNOW THE FOUR TYPES OF TEETH: Canines, Incisors, Molars, Premolars KNOW ALL THE TOOTH SURFACES: Buccal/Facial (please don’t be confused, Buccal surface are from the canines back of the last molar. Facial surface is the teeth you see when a person smiles canine to canine), Distal, Incisal, Lingual, Mesial, Occlusal.

BE FAMILIAR WITH ALL THREE OF THE NUMBERING SYSTEMS: (p.151)

READ CHAPTER 12 Tooth Morphology (p.154-171) No Key Terms Recall Questions: 1, 5, 6, 12, 15, 16 and 18

DAY 1

6610 NE 181st Street, Suite #1, Kenmore, WA 98028 www.northshoredentalacademy.com425.408.9400

CLASS SYLLABUS

2Copyright © 2018

READ CHAPTER 13 Dental Caries (p.174-188) Key Terms: Caries, Plaque Recall Questions: 3, 7, 8 and 9

DAY 1

BE PREPAREDFOR NEXT WEEK’S TEST: - Key terms and know your recall questions

- Universal numbering system

- Skeletal view diagram

- Big tooth diagram

- Tooth surfaces - labeling

- Label permanent dentition

- Label primary dentition

- Good things come to those who study

Subject to change

3Copyright © 2018

PERMANENT DENTITIONNames and Numbers

Figure 1A

MIDLINE

MIDLINE

UPPER ARCH1

32

31

30

29

28

2726 25 24

2322

21

20

19

18

17

2

3

4

5

67 8 9 10

11

12

13

14

15

16

ANTERIOR

ANTERIOR

POST

ERIO

RPO

STER

IOR

POSTERIO

RPO

STERIOR

LOWER ARCH

MAXILLARY UPPER RIGHT

MANDIBULAR LOWER RIGHT

Central Incisor

Lateral Incisor

Lateral Incisor Lateral Incisor

Canine (Cuspid)

Canine (Cuspid)

First Molar

First Molar First Molar

Second Molar

Second Molar Second Molar

Third Molar

Second Molar

Third Molar

First Molar

First Premolar (Bicuspid)


Second Premolar (Bicuspid)






Lateral Incisor

Central Incisor

Central Incisor Central Incisor

MAXILLARY UPPER LEFT

MANDIBULAR LOWER LEFT

Third Molar Third Molar

Canine (Cuspid)Canine (Cuspid)

4Copyright © 2018

Figure 1B

PERMANENT DENTITION Label

5Copyright © 2018

ANATOMY OF A TOOTH

1

6

7

Figure 2A

2

3

4

5

8

9

10

11

12

Enamel

Dentin

Gingiva

Alveolar Bone

Apical Foramen

Cusp

Pits/Grooves/Fissures

Sulcus

Nerve Chamber

Nerve Canal

Cementum

Apex

Periodontal Ligament AKA: PDL

13

6Copyright © 2018

ANATOMY OF A TOOTH Label

1

6

7

Figure 2B

2

3

4

5

8

9

10

11

12

13

7Copyright © 2018

TYPES OF TEETH

Four Types of Teeth:

1. Incisors: single rooted, sharp cutting edge, anterior teeth.

2. Cuspids/Canines/ “Eye Teeth”: single rooted, single cusp, strong, designed for tearing food, anterior teeth.

3. Premolars/Bicuspids: posteriors teeth, two cusps, designed for grasping and tearing food. First bicuspid has two roots. Second bicuspid are single rooted.

4. Molars: posterior teeth broad and chewing surface, four or more cusps. Maxillary Molars: three roots Mandibular Molars: two roots

Names of Teeth Numbers/Maxillary Arch Numbers/Maxillary ArchCentral Incisor 8 and 9 24 and 25Lateral Incisor 7 and 10 23 and 26Cuspid 6 and 11 22 and 27First Bicuspid 5 and 12 21 and 28Second Bicuspid 4 and 13 20 and 29First Molar 3 and 14 19 and 30Second Molar 2 and 15 18 and 31Third Molar 1 and 16 17 and 32

Universal Numbering System: (assuming all permanent teeth are present)

Maxillary Arch: 1 - 16; beginning upper right first tooth around to upper left last tooth.

Mandibular Arch: 17 - 32; beginning lower left first tooth around to lower right last tooth.

Surfaces of the Teeth: the names of the tooth surfaces are used to describe a specific area of the tooth.

Buccal: surface of tooth is next to cheek. Lingual: surface of tooth is facing tongue. Distal: surface of tooth toward back of mouth. Mesial: surface of tooth toward front of mouth. Facial: surface of tooth is next to cheek and lips. Labial: surface of anterior tooth is facing lip. Occlusal: chewing surface of posterior.

Premolars Incisors Molars

Figure 3A

©iStockphoto.com/Taylor Hinton

Canines

8Copyright © 2018

K

L

M

NOPQ

R

S

T

RIGHT

RIGHT

LEFT

LEFT

PRIMARY DENTITION

Figure 4A

MIDLINE

MANDIBULAR ARCH

MAXILLARY ARCH

DE F

A

B

C

G

H

I

J

Central Incisor

Lateral Incisor

Lateral IncisorLateral Incisor

Canine (Cuspid)

Canine (Cuspid)

First Molar

First Molar

First Molar

Second Molar

Second MolarSecond Molar

Second Molar

First Molar

Lateral Incisor

Central Incisor

Central Incisor Central Incisor

Canine (Cuspid)Canine (Cuspid)

MIDLINE

9Copyright © 2018Figure 4B

LABEL

A. Maxillary Right Second Molar

B. Maxillary Right First Molar

C. Maxillary Right Canine

D. Maxillary Right Lateral Incisor

E. Maxillary Right Central Incisor

F. Maxillary Left Central Incisor

G. Maxillary Left Lateral Incisor

H. Maxillary Left Canine

I. Maxillary Left First Molar

J. Maxillary Left Second Molar

K. Mandibular Left Second Molar

L. Mandibular Left First Molar

M. Mandibular Left Canine

N. Mandibular Left Lateral Incisor

O. Mandibular Left Central Incisor

P. Mandibular Right Central Incisor

Q. Mandibular Right Lateral Incisor

R. Mandibular Right Canine

S. Mandibular Right First Molar

T. Mandibular Right Second Molar

PRIMARY DENTITIONLabel MIDLINE

MIDLINE

10Copyright © 2018

SURFACES (SIDES) OF A POSTERIOR TOOTH

Lingual: the large flat surface of an anterior tooth directly opposite the labial (facial) surface on the tongue side of the tooth is referred to as the buccal surface. Its abbreviated “L”.

Mesial: the tooth surface nearest the midline (middle of the body) is called the mesial surface, “M”. This a proximal surface.

Proximal Surfaces: the mesial and distal surfaces of teeth are referred to as proximal surfaces. Proximal described the surface of a tooth that touches another tooth. The term Interproximal refers to the area between two teeth. Interproximal dental caries refers to dental caries (decay) between two teeth. Interproximal dental caries is common and is caused by inadequate removal of plaque or food from between teeth after eating. If patients would remove the plaque and food from between the teeth daily with dental floss or toothpicks, they would have fewer problems with both Interproximal dental caries and periodontal (gum) disease.

Distal: the tooth surfaces that is the farthest distance away from the midline is referred to as the distal surface, “D”. This is also a proximal surface.

Clinical Crown: that part of the crown of a tooth visible in the oral cavity. Synonym: corona clinica

Anatomical Crown: that portion of the tooth normally covered by, and including, enamel.

Lingual (L), (back of tooth)Occlusial (O)

Buccal (B)or

Facial (F)

Gingival (G)

Distal (D)

Mesial (M), (closest to midline)

Figure 3B

©iStockphoto.com/Taylor Hinton

11Copyright © 2018

Posterior Teeth: made up of premolars (bicuspids and molars. Think of posterior teeth as short fat boxes or shoe boxes. The names of only two surfaces of posterior teeth are different from the wording used to describe the surfaces of anterior teeth.

Occlusal: the broad tooth surface used for chewing and grinding food and is abbreviated “O”. This surface is bordered by the points, or cusp tips, of the tooth. Cusp tips correspond to the Incisal edges of anterior teeth.

Gingival: abbreviated “G”, its the area of the tooth nearest the gingival (gum) tissue, circling from buccal to lingual, through mesial and distal surfaces.

Buccal (Facial): the large tooth surface facing toward the cheek or face and is abbreviated “B”. This surface corresponds to the labial (facial) surface on an anterior tooth. This surface can also be referred to as facial, “F”, but buccal is used more commonly for posterior teeth since these posterior surfaces are opposite the cheeks more than the face.

NOTES

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14Copyright © 2018

1. Incisal: biting edge of all anterior teeth from canine to canine.

2. Occlusal: biting surface of molars and premolars.

3. Facial: face side of all anterior teeth from canine to canine.

4. Buccal: cheek side of premolars and molars.*

5. Lingual: tongue side of all teeth.

6. Mesial: surface of tooth closest to the midline of the mouth.

7. Distal: surface of tooth farthest from the midline of the mouth.

* Facial and Buccal are the same surface. Buccal is on the posterior and Facial is on the anterior.

Figure 7A

SURFACES OF TEETH

1

2

73

4

5

6

names and numbers - northshore dental assisting … chapter 4 dental ethics (p.28-32) ... names and...

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