The document discusses factors to consider when selecting artificial teeth for complete dentures. It separates selection into anterior and posterior teeth. Anterior teeth are primarily selected for aesthetics while posterior teeth are for function. Key factors discussed include: - Size, form, color, and material of teeth - Pre-extraction and post-extraction records - Contour of occlusal rims and high lip line - Different types of tooth forms like anatomic, semi-anatomic, and cuspless - Considerations for size like width, length, and height

1. Karl Yveth A. Aquino
DDM2B
1

2. • The anterior teeth are primary selected to satisfy
the aesthetic requirement.
•The posterior teeth are primarily selected to
satisfy the functional requirements
•The anterior teeth are composed of six maxillary
and six mandibular teeth
2

3. 3

4. The selection of artificial teeth for
complete denture can be divided into
two sections.
• Anterior teeth selection
• Posterior teeth selection
4

5. 5

6. 1. Size of the teeth
2. Form of the teeth
3. Color / shade of the teeth
4. Composition of material of teeth
6

7. 1. Pre-extraction records
A. Photographs
B. Diagnostic cast
C. Radiographs
2. Post extraction records
3. Proper contour of occlusal rim and High lip line
4. Arch form and size
7

8.  PRE EXTRACTION
◦ Recent photographs
8

9. ◦ Diagnostic cast
9

10. ◦ Radiographs
10

11. 2.POST EXTRACTION
◦Size and form of edentulous
foundation
◦Matching teeth to face forms
and arch form
◦Previous denture
11

12. 3. Proper contour of occlussal rim and high hip line
 Indication for inciso-gingival length
 The lower edge of the upper occlusion rim should be 2mm below
the lip when it is at rest.
 The distance from the lower edge of the upper occlusion rim to the
high lip line is measured and it represent the length of the upper
anterior teeth
12

13.  The size of teeth comprises their width and
length and is represented by the term mold.
 The size compromise of:
1. Length (incisogingival)
2. Labiolingual width
3. Mesiodistal width
13

14. 1. A vertical line extending along the lateral surface of the ala often
will pass through the middle of the natural upper canine
2. Measure the distance between the previously marked canine
lines on the maxillary wax occlusion rim.
14

15. 3. Using the flexible ruler. This will indicate the width of the maxillary
six anterior teeth on the curve. Distance between the 2 canine
lines = MD width of the six anterior teeth
4. Measurement on skulls indicate that the width of the natural
central incisor, approximately 1/16 the bizygomatic width patient’s
face
15

16. 1. Outline form of the face
2. Shape of the arch
3. Gender and age
16

17. 17

18. 18

19. 19

20. Sex, personality, age are the factors
which will determine the form of the
anterior teeth
20

21.  Curved facial features are associated
with femininity and square features are
associated with masculinity
21

22. MASCULINITY FEMININITY
Prominent teeth Smaller teeth
Square arch form Curved contours and arch
form
Square labial surface Curved labial surface
Square incisal edges and
corners
Round incisal edges and
corners
Darker shade Delicate appearance
Flat smile line Curved smile line
Canine- cervical area is
more prominent and visible
Canine-mesial 3rd only
visible
22

23. 23

24. 24

25. YOUNGER PEOPLE OLDER PEOPLE
Lighter shade Darker shade
More incisal
translucency
Less incisal translucency
Minimal wear of incisal
edges
Increased wear of incisal
edges
Curved smiling line Flat smiling line
Pointed canines Loss of tip of canines
25

26.  Teeth should be selected according to the
patients personality
 The patients
◦ vigorous
◦ delicate.
 More squarish and large teeth vigorous
people.
 The anteriors should be in flat plane
for executive people
 For executives teeth should be
relatively smaller and more symmetrical
26

27. 27

28.  Color is described by means of
- hue
- saturation and chroma
- brilliance
-Transluscent
28

29. 1. Hue.
2. Saturation and Chroma
29

30. 3. Brilliance
4. Translucency
30

31. 31

32. There are two main types:
1. Porcelain,
2. Acrylic
32

33. Acrylic teeth :
1- Not brittle, but poor abrasion
resistance.
2- Esthetic very good.
3- Chemical bonding with denture
base.
4- Easily ground and polish.
5- Transmit fewer forces to the
mucosa.
6- No clicking on contact.
7- Thermal expansion same as acrylic
denture base.
PORCELAIN TEETH :
1- BRITTLE, MORE RESISTANCE TO
ABRASION
2- EXCELLENT (DOES NOT STAIN).
3- MECHANICAL BONDING BY PINS OR
UNDERCUTS HOLES.
4- DIFFICULT TO GRIND AND POLISH.
5- MORE FORCES TO THE MUCOSA.
6- CLICKING ON CONTACT.
7- MUCH LOWER THAN ACRYLIC CAUSES
STRESSES IN ACRYLIC DENTURE BASE.
33

34. 34

35. It is classified under 2 division, namely:
 Size of the teeth
 Form of the teeth
35

36. The ff. factors are considered while selecting
the size of the teeth
 Buccolingual width
 Mesiodistal length
 Occlusogingival height
36

37. Buccolingual width
 Should be greatly reduced from the width of natural teeth
that they replace.
 It should be less than the buccolingual width of the
natural teeth to reduce the force cting on the alveolar
ridge, however ,that should not affect the check supprt
37

38. Mesiodistal width (anteroposterior)
 Upper (distal of canine to the tuberosity prominence)
 Lower (use a ruler to mark the crest of the mandibular
ridge from the base of the retromolar pad to the canine
area, and then measure from the distal of the canine to
ascending area of the mandible
38

39. Occluso-gingival height
 It depends on:
◦ The inter-arch distances between the ridge
◦ Amount of the bone resorption, resorbed residual
ridge RRR
39

40. Factors that control the selection of the form of
the tooth
 Condylar inclination
Teeth with a high cuspal height are require for the
patients with steep condylar guidance. This is
because the jaw separation will increase for patient
with acute condylar guidance during protrusion.
40

41.  Height of residual ridge
Shallow cusped teeth go better with shallow ridge
 Patient’s age:
Teeth with shallow cusps are preffered in older age.
 Ridge relationship:
0 degree or monoplane teeth are preferred for
cases with posterior cross bite or severe class II
relationship
41

42. • Cusp teeth
oAnatomic teeth
oSemi anatomic or modified cusp or low cusp
teeth
• Cuspless teeth
42

43. 43

45.  Advantages of anatomic teeth
1.Esthetically acceptable
2.More efficient  thereby reducing the
forces
3.They can arranged in balance
4.Offer the maximum opportunity for fully
balanced occlusion
5.more masticatory efficiency
45

46.  Disadvantages of anatomic teeth
1.More horizontal during function
2.Need eccentric records and required
adjustable articulator
3.Lateral torque in eccentric contacts and
higher chance for premature traumatic
contacts
4.Difficulty in relining and rebasing
5.Fast bone resorption
6.Cannot be used in severely resorbed cases
46

48.  Advantages of semi anatomic teeth
1. Easier to arrange and obtain balance
2. Can provide freedom if setlling occurs
3. Reduction of lateral stresses (decrease lateral force)
4. Provides all the advantages of cusp teeth
48

49. 49
Disadvantage of semi anatomic teeth
1. Less aesthetic (buccal cusp are shorter)
2. Less chewing efficiency (controversial:some claim greater)

51. Advantage of cuspless oclussal schemes
 More stable lower denture during mastication
 More vertical chewing stroke
 More shear in the chewing stroke
Disadvantage of cuspless occlusal schemes
 Less stability to the upper denture
 No balance in excursive glide
51

52. Advantage of 0 degree teeth
 Easy to set up
 Least lateral stress
 Least anterior posterior interference after
settling
 Best for patient with poor muscular control
 Best for patient with poor ridge relationship
52

53. Disadvantage of 0 degree teeth
 Very difficult to obtain balanced occlusion in
excursive movement
 Less chewing efficiency especially for fibrous
or tough food
 Poor esthetic
53

54.  Boucher’s Prosthodontic Treatment for Edentulous Patients , Ninth Edition
 Textbook of complete Dentures
 Textbook of prosthdontics, deepak nallaswamy ; jaypee
 https://www.google.com.ph/search?q=semi+anatomic+teeth&newwindow=1&source=ln
ms&tbm=isch&sa=X&ei=Ooa6VMKvFIuXuASG2IDoBA&ved=0CAgQ_AUoAQ&biw=13
66&bih=677#imgdii=_&imgrc=U1l_jx6ztimFTM%253A%3BoCqneQySiDKC8M%3Bhttp
%253A%252F%252Ffce-study.netdna-ssl.com%252Fimages%252Fupload-
flashcards%252Fback%252F3%252F8%252F18183023_m.jpg%3Bhttp%253A%252F
%252Fwww.cram.com%252Fflashcards%252Fdentures-retention-
683446%3B240%3B133
 https://www.google.com.ph/search?q=nonanatomic+teeth&newwindow=1&source=lnms
&tbm=isch&sa=X&ei=EIi6VIPCOMGouwS4soHQCg&ved=0CAgQ_AUoAQ&biw=1366&
bih=677#imgdii=_&imgrc=U1l_jx6ztimFTM%253A%3BoCqneQySiDKC8M%3Bhttp%25
3A%252F%252Ffce-study.netdna-ssl.com%252Fimages%252Fupload-
flashcards%252Fback%252F3%252F8%252F18183023_m.jpg%3Bhttp%253A%252F
%252Fwww.cram.com%252Fflashcards%252Fdentures-retention-
683446%3B240%3B133
 http:://www.autostream.com/presentation
54