natural vs denture occlusion

Question 1

why cant anterior guidance be achieved with dentures?

Answer 1

because it would dislodge the denture

Question 2

stability of natural vs denture teeth?

Answer 2

natural are stabelized by peridontum, detures are by slippery tissues

Question 3

pressures of occlusion of natural and denture teeth

Answer 3

natural receive individual pressures and can move independently. Denture all act as 1 unit.

Question 4

vertical forces of natural and denture teeth

Answer 4

very well tolerated in natural teeth. Tramatic in denture teeth

Question 5

incising with natural vs denture teeth

Answer 5

with natural teeth it doesnt affect the posterior teeth. Denture teeth all them move because they are all connected.

Question 6

which molar is favored for mastication in natural teeth?

Answer 6

2nd molar

Question 7

which one has more proprioception?

Answer 7

natural

Question 8

key points of natural occlusion

Answer 8

bilateral posterior centric contact, anterior guidance, mutually protective scheme of occlusion

Question 9

key points of complete denture occlusion

Answer 9

bilateral centric contacts, bilateraal eccentric contacts( which provides stability of base during functions)

Question 10

fundamental differences of natural and complete denture occlusion are…..

Answer 10

1. sensory feedback mech.
2. derivation of retention, stability, support
3. reaction of supporting structures to masticatory structures

Question 11

what provides stability, retention, and support for natural teeth?

Answer 11

periodontium

Question 12

what provides stability, retention, and support, for complete dentures?

Answer 12

soft tissues overlying residual bone ( ridges, buccal shelf, palate, etc…)

Question 13

define retention

Answer 13

resistance to dislogment forces in vertical direction away from the bearing surface

Question 14

define stability

Answer 14

resistance to laterally oriented dislodgment forces

Question 15

define support

Answer 15

factors of the bearing surface which resist forces in a vertical direction towards the bearing surface.

Question 16

reaction of supporting structures of natural teeth

Answer 16

physiologic levels of tension result in alveolar bone apposition

Question 17

reaction of supporting structures of complete dentures

Answer 17

non-physiologic compression like under the denture base results in further residual ridge resoprtion.

Question 18

name the 3 types of occlusion we know of so far….

Answer 18

balanced occlusion, monoplane, lingualized occlusion

Question 19

define balanced occlusion

Answer 19

simultaneous contacting of maxillary and mandibular teeth on the right and left and in the posterior and anterior occlusal areas

Question 20

why is balanced occlusion important?

Answer 20

on average tooth contact is about 4 hours a day. So they need to be balanced to maintain stability

Question 21

things that help with balanced occlusion

Answer 21

wide large ridges, wide ridge with narrower teeth, lingually placed teeth, centered force of occlusion,

Question 22

what does a smaller area of occlusal surface do ?

Answer 22

transmits a smaller crushing force to underlying structure

Question 23

whats unilateral balanced occlusion?

Answer 23

occlusal surfaces of teeth on one side occlude simultaneously as a group

Question 24

whats bilateral occlusal balance?

Answer 24

occlusion on both sides with centric and eccentric contacts

Question 25

bilateral occlusal balance should have how many contact points?

Answer 25

3, ( 2 posterior, 1 anterior)

Question 26

it is estimated that complete denture patients will increase from what to what from 1991 to 2020?

Answer 26

33.6 to 37.9 million

Question 27

even though there has been a 10% decrease in edentulism for each decade the last 30 years, it will be offset by what

Answer 27

71% in adults older than 55

Question 28

whats the difference between occlusion and articulation?

Answer 28

occlusion has to do with static relationships of teeth, articulation deals with the dynamic relationship of opposing teeth.

Question 29

what is occlusion imporant with?

Answer 29

stability, retention