To buy this contact excelsiordental@yahoo.com

1. DEPARTMENT OF PEDODONTICS
& PREVENTIVE DENTISTRY

2. •
Primary teeth are also known as:
• Decidues teeth
• baby teeth
• Milk Teeth
• Temporary teeth

3. • These are 20 total in number 10 in each jaw
– maxillary Central incisor
– maxillary Lateral incisor
– Maxillary Canine
– Mandibular Central incisor
– Mandibular lateral Incisor
– Mandibular Canine
– maxillary first Molar
– Maxillary Second Molar
– Mandibular first Molar
- Mandibular Second Molar

5. Maxilary central incisor
• LABIAL ASPECT
1. mesiodistal diameter of
crown is greater then
cervico incisal
2. labial surface is smooth
3. No development lines seen
4. Root length is greater than
crown length
5. Root is conical with even
tapered side

6. Lingual aspect :-
3. Well developed marginal
ridges and highly developed
cingulam soon
4. Cingulam extend up toward
incisal ridge to divide lingual
surface in mesial, distal
fossa
5. Root tapers lingually and
present a ridge or it's full
length
6. Cross section of root is
triangular

7. mesial and distal aspect: -
3. Mesial and distal aspect of
primary maxillary central incisor
are similar
4. The curvature of crevical line
which represent cemento enamel
junction or distinct curving
towards incisal edge
5. Curvature distally is less than
mesially
6. Crown appears thick at middle
third

8. incisal surface
• the incisal edge is relatively small
• Labial surface appears broad
• lingual surface taper towards cingulam
• mesial / destal surface are relatively
broad
• mesial/ Distal surface taper towards
incisal

9. Maxillary lateral incisor
Same as maxillary central incisor expect:
• crown is samller in all direction
• Cervico incisal length of lateral crown
is greater than mesio distal
• Disto incisal angles are more rounded
• Root is much longer in proportion to
it's crown than central ratio.

10. Maxillary Canine
• Labial aspect :-
• The crown is more constricted at cervix in
relation to it's mesio distal width
• Mesio distal srufaces are more covex
• incisal edge form long well developed sharp
cusp.
• Cusp is longer and sharper than permanent
teeth
• Mesial slope of cusp is longer than distal slope
• Root is long, slender, tapering and more than
twice in crown length

11. • Lingual aspect: -
• Cingulam, Mesial and distal marginal ridge ound
• Lingual ridge divide lingual surface in shallow
mesio lingual and distolingual fossa
• root tapers lingually
• Mesial aspect: -
• Outline form is similar to central and lateral
incisor
• The measurement labio lingually at cervical third
is greater

12. • Distal aspect: -
• Distal aspect is similar to medial aspect except
that curvature of cervical line towards cusp ridge
less than mesial.
• Incisal aspect: -
• Crown is diamond shaped from this aspect
• The tip of the cusp is distal to center of crown
• mesial cusp slope is longer than distal cusp
slope

13. Upper anterior labial aspect

14. Upper anterior lingual aspect

15. Upper anterior mesial/distal
aspect

16. Anterior : incisal aspect

17. Mandibular central incisor
• Labial aspect : -
• Flat face with no developmental groove
• mesial and distal sides of crown are
tapered evenly from contact area
• Crown is wide in proportion to it's length in
comparison with that of it's permanent
successor
• the root of primary central incisor is long,
evenly tapered dawn to apex

18. • Lingual aspect : -
• Marginal ridges and cingulam may be
located easily
• Lingual surfae of crown at middle third and
incisal third may have a flattened surface
or may present with slight concavity
• Lingual portion of crown and root
converge so that it is more narrow towards
the lingual

19. • mesial aspect: -
• Convexity of cerviacal contours at cervical third is
prononced
• labio lingual measurement of teeth is only a millimeter
less tan primary maxillary central incisor
• Mesial surface of root is nearly flat and evenly tapered.
• Distal aspect: -
• Outline of teeth from distal aspect is reverse from mesial
aspect
• Cervical line of crown is less curved towards incisal ridge
than on mesial surface
• Developmental deprersion is present on root.

20. • Incisal aspect: -
• Incisal ridge is straight and bisect the crown
labio lingually
• A definite taper is evident towards the cingulam
on lingual side
• Labial surface term this view presents a flat
surface slightly convex, whereas the lingual
surface present a flattened surface slightly
concave.

21. Mandibular lateral incisor
• Somewaht larger in all measurement than
central incisor
• Cingulam is little more genreous than that of
central incisor
• lingual surface of crown is more concave
• Incisal ridge slope downwared distally, this
design lowers the distal contact area apically so
that proper contact can be made with mesial
surface of primary mandibular canine

22. MANDIBULAR CANINE
• Crown is 0.5 mm and root is 2 mm shorter
than maxillary canine
• mesiodistal measurement of mandibular
canine is less when compared to it's
mesio distal measurement at contact area
than maxillary canine
• The cervical ridge labially and lingually are
not quite as pronounced as those in
maxiallary canine

23. LOWER ANTERIOR : LABIAL
ASPECT

24. LOWER ANTERIOR :LINGUAL
ASPECT

25. ANTERIOR :INCISAL ASPECT

26. maxillary first Molar
• Buccal aspect : -
• Widest measurement of crown of maxillary first
molar is at contact area mesIally and distally
• Crwon converge towards cervix
• The occlusal line is slightly scalloped but with no
definite Cusp form
• Buccal surface is smooth with little evidence of
developmental grooves
• Smaller than maxillary second molar
• Roots are slender and long,

27. • Lingual aspect: -
• the crown converge considerably in a lingual
direction making the lingual portion calibrate less
mesiodistally than buccal protion
• Mesiolingual cusp is most prominent, longest
and sharpest cusp.
• Distolingual cusp is poorly defined
• all three roots are seen
• Lingual root is larger than other

28. • Mesial aspect: -
• Dimension of cervical third is greater than demension of
occlusal third
• A pronounced concavity is evident on buccal outline of
cervical third
• Cervical line measlally showns some curvature in
direction of occlusal surface
• A pronounced convexity is evident on the buccal outline
of cervical third
• Mesiobuccal and lingual roots are visibal only when
looking at the mesial side
• Lingual root from this aspect look long and slender and
extend lingually to a marked degree

29. • Distal aspect :-
• Crown is narrower distally than mesially
• tapers markdly towars distal end
• Disto buccal cusp is long and sharp
• Disto ingual cusp is poorly developed
• Cervical line may curve occlusally
• All three roots are seen
• Point of bifurcation of disto buccal root and
lingual root is near CEJ

30. • Occlusal aspect: -
• The Calibration of distance between mesiobuccal line
angle and disto buccal ling angle is greater than mesio
lingual and distolingual
• the occlusal surface has a central fossa, mesial
triangular fossa just inside mesial marginal ridge.
• Buccal developmental groove divides mesiobuccal and
disto buccal cusp occlusaly
• Oblique ridge is found connecting the mesio lingual and
disto buccal cusp
• Distal marginal ridge is then and Poorly difined.

31. Maxillary second Molar
• Buccal aspect: -
• Resemble permanent maxillary first molar but is
smaller
• two well defined buccal cusp and buccal groove
is seen
• Crown is longer than the first moler
• Crown is narrow at cervix
• Roots appears slender from this aspect
• the point of bifurcation between the buccal root
is close to cervical line of crown

32. • Lingual aspect: -
• Crown shows theree cusps :
– Mesio lingual
– Disto Lingual
– Supple mental
• Supplemental cusp is also known as tubercle of
carabelli
• A well defined developmental groove seprates
the mesio lingual cusp from disto lingual cusp
• All the three roots are visible, lingual root is
largest and thickset.

33. • Mesial aspects: -
• Crown appears short because of it's width
buccolingually in comparision with it's length
• Mesio lingual cusp with it's supplementay 5th
cusp appears large in comparison with mesio
buccal cusp
• Mesio buccal root from this aspect is broad and
flat
• Lingual root has somewhat same curvature as
the lingual root of maxillary first molar.

34. • Distal aspect: -
• Distal calibration of crown is less than mesial
• Disto buccal and disto lingual cusps are about
same in length
• the cervical line is approximately straight
• All three roots are seen.
• Disto buccal root is shorter and narrower than
others
• The point of bifurcation between distobuccal root
and lingual root is more apical in location than
any of other point of bifurcation.

35. • Occlusal aspect: -
• Rhomboidal in shape
• well developed cusp and a supplemental cusp is found
• Buccal surface is flat
• The occlusal surface consist of
7. Central Fossa
8. Mesial triangular fossa
9. Central groove
10.Oblique ridge
11.Distal developmental Groove
12.Distal triangular fossa
13.Lingual developmental groove
14.Distal marginal ridge
15.Mesial Marginal Ridge
16.Central pit
17.Mesial marginal ridge
18.Central pit

36. Maxillary molars buccal and
palatal aspect

37. Maxillary molar :mesial aspect

38. Maxillary first molar : occlusal

39. Maxillary second molar :
occlusal

40. Mandibular First Molar
• Buccal aspect: -
• Mesial outline of crown is straight constricting
the crown at cervix
• Distal portion of crown is shorter than the mesial
portion
• Two buccal cusps are distinct
• No developmental groove
• mesial cusp is larger than distal
• Roots are long and slender
• They spread greatly at apical third beyond the
outline of crown

41. • Lingual aspect: -
• Crown, root converge lingually to marked
degree
• Disto lingual cusp is rounded
• Mesio lingual cusp is long and sharp
• Mesial marginal ridge is well developed
• Cervical line is straight

42. • Mesial aspect: -
• The most noticeable thing from mesial aspect is
extreme curvature buccaly at cervical third
• Both the mesio buccal and mesio lingual cusps
are seen with a well developed marginal ridge
• Cervical line slants upwards bucco-lingually
• Root end is flat and square
• Development depression is present
• Buccal and lingual outline of root drop straight
down to crown

43. • Distal aspect: -
• Cervical line doesn't drop buccally
• Length of crown buccally and lingually
more uniform.
• Distobuccal and distolingual cusps are not
as sharp as mesial
• Distal marginal ridge is not well defined
• Distal root is rounded and shorter

44. • Occlusal aspect: -
• Rhomboidal in shape
• Mesiolingual cusp may be seen as largest and well
developed
• Buccal and central developmental grooves are found
• Other Landmarks are:
• Central developmental groove
• Lingual developmental groove
• Distal marginal ridge
• Distal triangular fossa

45. Mandibular second molar
• Buccal aspect: -
• narrow mesio distal calibration at the cervical
portion of crown when compared with
celebration mesiodistally on crown at contact
level
• Mesio buccal and disto buccal developmental
grooves divide the surface in there cusp (tow
buccal and a distal)
• Roots are slender and long
• Have characteristics flare mesially
• Point of bifurcation is found immediately below
cej.

46. • Lingual aspect: -
• Two lingual cusps of almost equal
dimension are seen
• A short lingual groove is present
• Cervical line is straight
• Mesial portion of crown seems to be little
higher
• A portion of each of there buccal cusp
may be seen.

47. • Mesial aspect: -
• Crest of contours buccally is more
prominent
• Marginal ridge is high
• Lingual cusp is longer and higher
• the mesial root is broad and flat with a
blunt apex

48. • Distal aspect: -
• Crown is not as wide as mesially
• Disto lingual cusp is well developed
• Cervical line is regular
• Distal root is almost as mesial and
flattened on distal surface
• Distal root taper more at apical

49. • Occlusal aspect: -
• Three buccal and two lingual cusps are
equally matched
• Well defined triangular ridge found.
• Other landmarks are central groove ,
lingual groove, Mesial and distal groove.

50. MANDIBULAR MOLAR : BUCCAL
ASPECT

51. MANDIBULAR MOLAR :
LINGUAL ASPECT

52. MANDIBULAR MOLAR : MESIAL
ASPECT

53. MANDIBULAR FIRST MOLAR :
OCCLUSAL ASPECT

54. MANDIBULAR SECOND
MOLAR : OCCLUSAL ASPECT

55. REFERENCES
• .
• .wheeler s dental anatomy, physio logy and occlusion: ash, nelson
• . text book of dental anatomy: satish chandra
• . text book of pedodontics : damle
• text book of pedodontics : s . tondon