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7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacic
Arthur A. Dugoni School of Dentistry
Week I : Introduction to Dental Anatomy
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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Introduction to Dental Anatomy
Human&Anatomy&&&Gross&Anatomy& Microscopic&Anatomy&
Examples&Histology&Physiology&Biochemistry&
&
Regional&Groups&
Examples&
Head&&&Neck&Thorax&Abdomen&
ental&Anatomy&
!tudy&o"&the&Teeth&
Restoring&#uncEon&&&&$ontour&
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
General Information
!
!
Muscles lay a key role in masticatory functions! seaking ands"allo"ing
#hey may e$hi%it di&erential regional action due to comle$movements of the #M's
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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Introduction to Dental Anatomy
!
Ma(or )omonents *f #he #M'
)ranial +ase
! #he Mandi%le
! Muscles *f
! Mastication
,With innervation and
vascular suly-
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
+asic Skull Anatomy
!
!
Ma$illa uer (a" %one
Mandi%le lo"er (a" %one
Maxilla
Mandible
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
+asic Skull Anatomy
!
!
Ma$illary teeth / ma$illary arch
Mandi%ular teeth / mandi%ular arch
Maxillary
Teeth
Mandibular
Teeth
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#ooth Identication Systems
! #here are three main systems used in modern dentistry for thenum%ering of teeth. #hey are:
! Universal 0um%ering System
!
Palmer 0otation System! International 0um%ering System
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Universal 0um%ering System
!
!
1istory
! Suggested %y Parreidt in 2334
! Adoted %y the A.D.A. in 2567
Details! Uses num%ers 2 through 84 for
ermanent teeth
! Uses letters A through # forrimary teeth
A B $ E # G H %
T ! R ' P ( N M ) *
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Palmer 0otation System
! Details
! Uses %rackets to reresent the four9uadrants
! Permanent teeth are la%eled 2 to 3 oneach side of the midline
! Deciduous teeth are la%eled "ith the same%rackets! letters A through
E $ B A
E $ B A
Uer ;ight Uer <eft
<o"er ;ight <o"er <eft
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Universal 0um%ering System
! Details
!
!
Uses t"o digits for each tooth
=irst digit reresents dentition! arch and side
! 2 / ermanent dentition! ma$illary! right! 4 / ermanent dentition! ma$illary! left
! 8 / ermanent dentition! mandi%ular! left
! > / ermanent dentition! mandi%ular! right
! 7 / rimary dentition! ma$illary! right
! ? / rimary dentition! ma$illary! left
! 6 / rimary dentition! mandi%ular! left
! 3 / rimary dentition! mandi%ular! right
Second num%er denotes the tooth ositionrelative to midline! 2 3! from central incisor to8rd molar
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
International 0um%ering System
!
!
!
!
!
!
!
!
2
4
8
>7
?
6
3
/
/
/
//
/
/
/
ermanent dentition! ma$illary! right
ermanent dentition! ma$illary! left
ermanent dentition! mandi%ular! left
ermanent dentition! mandi%ular! rightrimary dentition! ma$illary! right
rimary dentition! ma$illary! left
rimary dentition! mandi%ular! left
rimary dentition! mandi%ular! right
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#rait )ategories Set #raits
! Set #raits / dentition traits distinguish teeth in the rimarydentition from secondary dentition
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#rait )ategories Arch #raits
! Arch #raits @ distinguish ma$illaryfrom mandi%ular
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#rait )ategories )lass #raits
! )lass #raits @ distinguish the four categories of teeth ... incisors!canines! remolars! molars
%ncisors
$anines
Premolars
Molars
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#rait )ategories #ye #raits
! #ye #raits distinguish teeth "ithin one class
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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Introduction to Dental Anatomy
1umans 1ave #"o Dentitions #hroughout <ife
!
!
Primary dentition during childhood
Permanent dentition during adulthood
Primary entition Permanent entition
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Anterior vs. Posterior Permanent Dentition
!
!
Anterior #eeth incisors and canines
Posterior teeth remolars and molars
A A A P P P P P
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Permanent Dentition
;ight
Uer right
<eft
Uer left
<o"er right <o"er left
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#erminology Used to Distinguish #ooth Surfaces =acial Surface
! =acial Surface the surface ne$t to the face! theouter surface of a tooth resting ne$t to the cheeksor lis.
! Used in %oth anterior and osterior teeth
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#erminology Used to Distinguish #ooth Surfaces +uccal Surface
! +uccal Surface the facial surface of osterior teeth! meaning ne$tto the cheek
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#erminology Used #o Distinguish #ooth Surfaces <a%ial Surface
! <a%ial Surface the facial surface ne$t to the lis!generally used for anterior teeth
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#erminology Used to Distinguish #ooth Surfaces Pro$imal Surface
!
!
Pro$imal Surface the surface or side of atooth that is ne$t to an ad(acent tooth
Pro$imal surfaces are not considered self@cleansing
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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! Mesial Surface @ is the surface of the tooth nearest to themidline of the dental arch
Introduction to Dental Anatomy
#erminology Used
#o Distinguish #ooth Surfaces
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! Distal Surface @ is the surface of the tooth farthest from themidline of the dental arch
Introduction to Dental Anatomy
#erminology Used
#o Distinguish #ooth Surfaces
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#erminology Used #o Distinguish #ooth Surfaces
! <ingual Surface @ is the surface of ma$illary and mandi%ular teethnearest the tongue
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
#erminology Used #o Distinguish #ooth Surfaces
!
Palatal Surface @ is thesurface of ma$illary teethnearest the alate
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Primary Dentition
!
!
!
!
#here are 4 teeth in the rimary dentition
! 2 ma$illary teethB 2 mandi%ular teethB 7 teeth in each 9uadrant
#his dentition is also termed the deciduous dentition
#he rst signs of this dentition aear %et"een Cero and si$ monthsPrimary teeth fall out due to a natural rocess of tooth succession
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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Introduction to Dental Anatomy
Dental =ormula for the Primary Dentition
! #he dental formula for one side of the mouth is:
% +
+$
,
,M
+
+- ,. teeth on each side
% %
% %
$
$ M M
M M
,Permanent 2st molars erut at the age of ?B "hile most rimary teeth are still in lace-University of the Pacific School of Dentistry
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
Primary Dentition
!
!
!
#he teeth function an average of 3years for ma$illary teeth
#he teeth function an average of 6.?years for mandi%ular teeth
1old an imortant role in reservingsace for ermanent teeth
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
)ro"n Proortion <a%ial Asect of Primary Incisors
! Primary ma$illary central incisors are theonly incisor in %oth dentitions that is"ider mesiodistally than they are longincisocervically
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
)ervical <ines <a%ial Asect of Primary )anines
! 1old an imortant role in
reserving sace for ermanent teeth
M
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
Primary Molars
!
!
!
!
Smaller than rimary second molars
Are 9uite uni9ue in their shae
Primary second molars have considera%lelikeness to ermanent rst molars
Ma$illary molars have three roots andmandi%ular have t"o
7/21/2019 IPT Intro to Dental Anatomy tooth dental dentistry
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University of the Pacific School of Dentistry
Introduction to Dental Anatomy
Permanent Dentition
!
!
!
#here are 84 teeth in the ermanent dentition
! 2? ma$illary teethB 2? mandi%ular teethB 3 teeth in each 9uadrant
#his dentition is also termed the succedaneous dentition %ecause itsucceeds the rimary dentition
#he rst signs of the ermanent dentition aear at age ?
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
General Descrition of Incisors
! #here are four ma$illary incisors:
! #"o centrals
! #"o laterals
/ 0 1 ,.
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Introduction to Dental Anatomy
Introduction to )anines
!
!
#here are four canines:
! 0um%ers ?! 22! 44! 46
General information
! #hey are the longest of theermanent teeth
! )alled cornerstones of the arches
! Also kno"n as cusids! eyeteethor fangs
2 ,,
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University of the Arthur A. Dugoni Pacific
School of Dentistry
Introduction to Dental Anatomy
General Descrition of Premolars
!
!
#here are eight remolars in human dentition
0um%ers >! 7! 24! 28! 4! 42! 43! 45
3
4
,+
,5
+.
+0 +,
+1
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University of the Pacific Arthur A. Dugoni
School of Dentistry
Introduction to Dental Anatomy
General Descrition of Molars
!
!
!
#here are 24 ermanent molars
=irst! second and third on each sidema$illary and mandi%ular
Under universal num%ering system they
are 2!4!8!2>!27!2?!26!23!25!8!82!84