See S. Winkler
Example: artificial teeth are attached to one denture base for each arch and move as one unit, which means it is easily displaced by dislodging forces. Natural teeth move independently and migrate slowly into a favorable occlusion.
Post your comments for the rest of the factors.
Comparing natural teeth and artificial teeth for occlusion
ReplyDeleteThe teeth of the natural dentition are retained by the periodontal ligament. When the natural teeth are lost, both the occlusion and the attachment with its proprioception feedback are lost. With complete artificial occlusion, all the teeth are on a base that is seated on a slippery tissue.
Natural teeth receive individual pressure during occlusion and can move independently and can migrate to adjust to occlusal pressure. Artificial teeth, they move as a unit on its base when a force is applied.
Malocclusion for natural teeth may be uneventful for years but with dentures malocclusion evoke immediately and involve all the teeth and the base of the denture.
Nonvertical forces during function only affect the teeth involve and are usually well tolerated, whereas with artificial teeth it affects all the teeth on the base and is usual traumatic to the supporting structure.
Incising with natural teeth does not affect the posterior but with artificial teeth it affects all the teeth on the base.
With natural teeth the second molar region is most favourable for masticating hard foods due to the fact that there is more leverage at that area. With artificial teeth, masticating in the area of the second molar will cause the denture to tilt and shift it, if it is on an incline foundation.
In natural teeth bilateral balance occlusion is rarely find and if it is considered as balancing side interference .with artificial teeth bilateral balance occlusion is generally considered necessarily for stability of the base.
With natural teeth proprioception give the neuromuscular system control during function. This makes it possible for a person to avoid prematurities and interference and to establish an stable habitual occlusion away from centric relation. Denture do not have such feedback system and the mandible in function will ends its stroke in the most favourable kinesiology position, which is very close to centric relation. If any interference occurs when the mandible retunes to this position the base will tilt and shift on the foundation tissue.
Nice kubus, that is all, what more are there?
ReplyDelete1. The teeth in natural dentitions are retained by periodontal tissues that are uniquely innervated and structured. When natural teeth are lost, both the occlusion and the attachment with its proprioceptive feedback mechanism are lost. In complete artificial occlusion, all the teeth are on bases seated on slippery tissues.
ReplyDelete2. In natural dentitions, the teeth receive individual pressure on occlusion and can move independently. They can migrate to adjust to occlusal pressure. The artificial teeth move as a unit on their base.
3. Malocclusion of natural teeth may be uneventful for years. Malocclusion of artificial teeth evokes an immediate response and involves all of the teeth and the base.
4. Non-vertical forces on natural teeth during function affect only the teeth involved and are usually well tolerated, whereas in artificial teeth the effect involves all of the teeth on the base. It is usually traumatic to the supporting structures.
5. Incising with natural teeth does not affect the posterior teeth. Incising with artificial teeth affects all of the teeth on the base.
6. In natural teeth, the second molar is the favoured area for masticating hard foods, owing to more favourable leverage and power. Heavy pressures of mastication in the second molar region with artificial dentition will tilt the base and shift it, if it is on an inclined foundation.
7. In natural teeth, bilateral balance is rarely found; if present it is considered balancing side interference. In artificial teeth bilateral balance is generally considered necessary for base stability.
8. In natural teeth, proprioception gives the neuromuscular system control during function. This makes it possible for a person to avoid prematurities and interference and to establish a stable habitual occlusion away from centric relation. With artificial teeth, no such feedback signal system is present and the mandible in function will end its chewing stroke in the most favourable kinesiologic position, which is very close to centric relation. If cusps interfere or prematurities exist as the mandible returns to this position, the bases will shift on the foundation tissues.