This document discusses factors to consider when selecting teeth for dentures. For anterior teeth, size, form, and color should match the patient's face, gender, and other features. Pre-extraction records, anthropological measurements, anatomical landmarks, and theoretical concepts can guide tooth size. Posterior teeth selection considers mesiodistal length, buccolingual width, and occlusogingival height. Morphology like anatomic, semi-anatomic, and cuspless teeth affect aesthetics, function, and stress during chewing. Patient characteristics like age, habits, and ridge relationship also influence tooth selection.

1. TEETH SELECTION
Dr.Nadiah Alenaizan

2. WHEN
??

3. IS IT IMPORTANT ?
• Aesthetic
• Functional

5. The patient
should be
seated upright
position
Adequate light (Day light, neon ,fluorescence).

6. A) ANTERIOR TEETH
• Anterior teeth paly important role in the aesthetic of a patient. They are not
subjected to heavy occlusal load like the posterior.
• Factors considered during the selection:
 Size
 Form
 Colour /shade

7. • Size of the anterior teeth should be appropriate to the size of the face ,gender.
• Guide to select the size:
Pr-extraction record
Anthropological measurements of the patient.
Anatomical landmark
Theoretical concepts

8. PRE –EXTRACTION
RECORDS

9. METHODS USING ANTHROPOLOGICAL
MEASUREMENTS
Width of the upper central incisor = circumference of the head
13
The width of the maxillary central incisor=Bi-zygomatic
16

10. BASED ON THE WIDTH OF THE NOSE

11. METHOD USING ANATOMICAL
LANDMARKS
A-Sum of the width of all anterior and posterior teeth

12. B-Distance between two canine eminence
C-Distance between the attachments of buccal frenal

13. METHODS USING THEORETICAL
METHODS
Winkler's concept :
The teeth should be selected based on three different views
1-physiologicaly-biologically
2-psychologically
3-biomechanical

14. LEON WILLIAMS (1917)
Steins
(1936)

15. FORM OF THE ANTERIOR TEETH
Shape of the patient’s face or facial form
 Ovoid
Tapering
Square
Combination of the above

16. • Patient’s profile:

17. Dentogenic concept (Gender, Personality, Age):
Female: Male:

18. Age:
• Old people usually have abraded teeth with worn out contacts.
Personality:
• Vigorous people…Square, large teeth.
• Executives…..small, symmetrical arrange.

19. COLOUR FOR ANTERIOR
Age Complexatio
n
Colour of
patient’s hair
Colour
of eyes
Habits

20. POSTERIOR TEETH
SELECTION
Mesiodisal lengthBuccolingual width Occluso-gingival Hight

21. FACTORS CONTROL THE FORM OF
POSTERIOR TEETH
Condylar inclination
Hight of residual ridge
Patent’s age
Ridge relationship

22. MORPHOLOGICALLY TEETH CAN BE
CLASSIFIED AS:
Anatomic teeth  Aesthetic
 Great chewing
sufficiency
 Angles 33°, 30°
 Difficult and time
consuming to obtain
balanced occlusion
 More latera stress in
function resorption
Semi anatomic teeth
(Modifiedcusp,Low-cusp)
 More flexible to arrange
 Angles 10°
 Less aesthetic and
chewing efficiency than
anatomic
Cuspless teeth
(Flat,Monoplane,0°)
 Easy to set up
 Least lateral stress
 Best for patent wt poor
muscular control or poor
ridge relationship
 Less chewing efficiency
 Poor esthetic

23. Thank
you!

24. REFERENCES