when why and how to replace missing teeth

Question 1

4 reasons to replace missing teeth?

Answer 1

• Appearance.
• Occlusal stability.
• Function (mastication or speech).
• Psychological

Question 2

How does restoring missing teeth help maintain occlusal stability?

Answer 2

Prevents overeruption, tilting or drifting of teeth. thus prevents UNSTABLE OCCLUSION.

Question 3

what is a disadvantage of an unstable occlusion?

Answer 3

complicates prosthodontic replacement as there is not enough SPACE between the teeth and opposing edentulous ridge.

Question 4

what is advised if a tooth is to only be replaced to esnure occlusal stability?

Answer 4

• Overeruption is impossible to redict.
• Monitor tooth movement over time (take study models soon after XLA).
• Schedule review appointment after 3 MONTHS.

Question 5

what is overeruption also called?

Answer 5

DENTO ALVEOLAR COMPENSATION

Question 6

What is the concept of the SDA?

Answer 6

Minimum number of occlusing pairs of teeth:
- 4 premolar teeth.
- 2 pairs of occluding MOLAR teeth.

today generally PREMOLAR TO PREMOLAR OCCLUSION.

AT LEAST FOUR OCCLUSAL UNITS LEFT, PREFERABLY IN A SYMMETRICAL POSITION.