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Dental Anatomy and Masticatory Dynamics INDIAN DENTAL ACADEMY

Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com


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Today Intro faculty  Distribute Manual / Discuss Resources  Intro lecture  Mock Quiz  Review Quiz 

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Faculty Ilze Bekeny  Francis Curd  T. Roma Jasinevicius  Jay Joseph  Louis Juliano  Tania Markarian 

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DAMD Offices Next to DentSim Clinic  In BLUE manual 

– Telephone numbers – E-mail numbers

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Text / Resources  

Notes CD

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Lecture  

Welcome CWRUDay 1 of your professional career the rest of your life!!! –

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From Apprentice

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George Washington’s ‘Teeth’

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20th century dentures

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From apprentice to professional

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Restorative Dentistry on typodont Procedures executed by 2ndwww.indiandentalacademy.com year Dental Student


Start notes from here

Masticatory / Gnathological System

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Masticatory / Gnathological system 

Masticatory: – Pertaining to chewing

Gnathology – Science that deals with anatomy, histology, physiology, pathology of the jaws and masticatory system as a whole, including the applicable diagnostic, therapeutic and rehabilitative procedures www.indiandentalacademy.com

Frontal view


Sagittal view of skull: Jaws: Maxilla – non-movable Mandible - movable

Temporomandibular jt

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Mixed Dentition: Primary /Deciduous and Permanent

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Determination of age from teeth present

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6 year molar

LI + CI 8 yr 7 yr www.indiandentalacademy.com


Permanent Teeth

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Maxillary ANTERIOR

Mandibular ANTERIOR

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Anterior Teeth 

Maxillary – Central Incisor (2 – right and left) – Lateral Incisor (2 – right and left) – Canine (2 – right and left)

Mandibular – Central Incisor (2 – right and left) – Lateral Incisor (2 – right and left) – Canine (2 – right and left) www.indiandentalacademy.com


Maxillary PreMolars

Mandibular PreMolars www.indiandentalacademy.com


Posterior Teeth - PreMolars 

Maxillary – 1st Premolar (2 – right and left) – 2nd Premolar (2 – right and left)

Mandibular – 1st Premolar (2 – right and left) – 2nd Premolar (2 – right and left)

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Maxillary Molars

Mandibular Molars www.indiandentalacademy.com


Posterior Teeth - Molars 

Maxillary – 1st Molar (2 – right and left) – 2nd Molar (2 – right and left) – 3rd Molar (Wisdom tooth) (2 – right and left)

Mandibular – 1st Molar(2 – right and left) – 2nd Molar (2 – right and left) – 3rd Molar (Wisdom tooth) (2 – right and left) www.indiandentalacademy.com


Division 

Arches – Maxillary

Mandibular

Quadrants – Maxillary Arch • Right quadrant • Left quadrant

Mandibular Arch Right quadrant Left quadrant

Sextants – Maxillary Arch • Right posterior sextant • Anterior sextant • Left posterior sextant

Mandibular Arch Right posterior sextant Anterior sextant Left posterior sextant

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Maxillary Arch

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RIGHT LEFT Left

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Maxillary Arch

Max Right quadrant

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Maxillary Arch

Max Left quadrant

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Maxillary Arch Max Left Posterior sextant

Max Right Posterior sextant

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CROWN coronal Cervical line ROOT radicular

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Incisal (ant) Occlusal (post) CROWN coronal

Cervical line

ROOT radicular APEX apical www.indiandentalacademy.com


Right

Midline

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Left


Right

Midline

Left

Mesial – towards midine Distal

Away from midline

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Right

Midline

M D M D

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Left


Right UNIVERSAL SYSTEM

7

8

9

Left

10

6

11

5 4 3

14

2 1

15 www.indiandentalacademy.com

-missing

missing

16


Mandible numbering system 32 missing

missing

31

18

30

19

29 28 27

26

22 25/24 23

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20 21

17


Name / number the teeth Using Universal # System

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Name / number the teeth Using Universal # System!

45

6

7

8

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9 10 11


8

9

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More terminology FACIAL View

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More terminology 

Views / aspects of teeth – Facial – Lingual – Mesial (a proximal surface) – Distal ( a proximal surface) – Occlusal (posterior) / Incisal (anterior)

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#8

midline

DISTAL

MESIAL INCISAL

Facial View www.indiandentalacademy.com


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Apical Facial View

Mesial

Distal

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Incisal


Apical APICAL MIDDLE CERVICAL CERVICAL Mesial MIDDLE

Distal

INCISAL Incisal

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Apical

Mesial

Middle

middle

Mesial Middle Incisal www.indiandentalacademy.com

Distal Distal


Proximal View Apical Facial

Middle

Lingual

Cervical Cervical Facial

Middle Incisal

Lingual

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Proximal

Facial

Trapezoid

Triangle Incisors

PM

Molars

Rhomboid PMwww.indiandentalacademy.com Molars


Facial of all teeth - trapezoidal

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Break time – 10 minutes

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Continue with terminology‌

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Contact areas 

Area on proximal surface of a tooth – either M or D – when teeth are in good alignment – which touches adjacent tooth

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Contact areas 

Area on proximal surface of a tooth – either M or D – when teeth are in good alignment – which touches adjacent tooth

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Variations yet characteristics for identification

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Maxillary Incisors Purpose Along with mandibular incisors – Esthetics – Phonetics - speech – Incising / cutting

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Information* and Photos with black background – Tooth Atlas

www.indiandentalacademy.com * Information with asterisk from Tooth Atlas CD


Maxillary Central Incisor Development*    

The initiation of calcification is between 3 and 4 months. The completion of enamel formation is 4 to 5 years. The eruption is between 7 to 8 years. Root development complete at 10 years. www.indiandentalacademy.com


Why DA ?

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5 views of teeth 

Facial – Labial (anterior) – Buccal (posteriors)

   

Lingual Mesial Distal Incisal / Occlusal – Ant / posterior www.indiandentalacademy.com


Maxillary Central - #8 Facial view 

Crown:Root -

11mm: 13 mm

M-Inc Corner -

90 degrees

D-Inc Corner -

rounded

M contact D contact -

(Incisal/Middle) D

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Incisal Junction


Maxillary Central - #8 Facial view 

Size – MD – Inc-Cerv

M outline

D outline

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widest ANT tooth longest Crown

straight sltly rounded


Maxillary Central - #8 Facial view 

Size – MD – Inc-Cerv

M outline

D outline

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widest ANT tooth longest Crown

straight sltly rounded


Maxillary Central - #8 Lingual view 

Marginal ridges (MR) – MMR > DMR – Moderately pronounced

Cingulum – Moderately pronounced – D located

Fossa – Moderate depth

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Maxillary Central - #8 Lingual view 

Marginal ridges (MR) – MMR > DMR – Moderately pronounced

Cingulum – Moderately pronounced – D located

Fossa – Moderate depth

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Maxillary Central - #8 Mesial view 

Incisal Edge

sltly F to . root axis

Facial surface

CEJ (cervical line) deeper on M

Root:

flat

– M surface – flat w/ depression – (D surface – convex w/ no depression)

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Maxillary Central - #8 Distal view 

Incisal Edge

sltly F to . root axis

Facial surface

CEJ (cervical line) deeper on M

Root:

flat

– M surface – flat w/ depression – (D surface – convex w/ no depression) www.indiandentalacademy.com


Maxillary Central - #8 Incisal view 

Geometric – Triangular – MD > FL –

Facial – flat

Cingulum – Distal location

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Maxillary Lateral Incisor Most variable ANTERIOR tooth

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Maxillary Lateral - #7 Facial view 

Crown:Root -

M-Inc Corner -

D-Inc Corner -

v. rounded

M contact D contact -

Junction* Middle

10mm: 13 mm

*(Incisal/Middle) www.indiandentalacademy.com

rounded


Maxillary Lateral - #7 Facial view 

Crown:Root -

M-Inc Corner -

D-Inc Corner -

v. rounded

M contact D contact -

Junction* Middle

10mm: 13 mm

*(Incisal/Middle) www.indiandentalacademy.com

rounded


Maxillary Lateral - #7 Facial view 

Size – MD – Inc-Cerv

smaller than CI shorter CI

M outline

rounded

D outline

v. rounded

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Maxillary Lateral - #7 Facial view 

Size – MD – Inc-Cerv

smaller than CI shorter CI

M outline

rounded

D outline

v. rounded

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Maxillary Lateral and Central - #7 - #8 Facial view

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Maxillary Lateral - #7 Lingual view 

Marginal ridges (MR) – MMR > DMR – Moderately pronounced – More than CI

Cingulum – More pronounced than CI – Centered

Fossa – Moderate depth – Pits / groove variation

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Maxillary Lateral - #7 Lingual view 

Marginal ridges (MR) – MMR > DMR – Moderately pronounced – More than CI

Cingulum – More pronounced than CI – Centered

Fossa – Moderate depth – Pits / groove variation

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Maxillary Lateral - #7 Mesial view 

Incisal Edge

sltly F to . root

axis 

Facial surface

more rnd

CEJ (cervical line) deeper on M

Root: – M surface – flat w/ depression – (D surface – flat / no depression)

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Maxillary Lateral - #7 Distal view 

Incisal Edge

sltly F to .

root axis 

Facial surface

more rnd

CEJ (cervical line) deeper on M

Root: – M surface – flat w/ depression – (D surface – flat / no depression)

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Maxillary Lateral - #7 Incisal view 

Geometric – Rnded – MD > FL –

Facial – rnd

Cingulum – Centered

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It’s been so lovely!!! Next session – Quiz and bring typodonts (we will provide prep) For LAB: bring matches (lighter) and stockings!!!! stockings

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Thank you For more details please visit www.indiandentalacademy.com

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