Which is better canine guidance or group function?
So far, we’ve said that canine guidance is easier to produce, reduces posterior lateral forces, and has the same outcomes in TMD as group function.
Can you have group function and canine guidance?
Abstract. Anterior guidance, which can be categorized as group function or canine guidance, is essential for esthetics, phonetics, and mastication. This article reviews the historical development and philosophies of both occlusal schemes.
What is canine guidance occlusion?
The canine-guided occlusion is a mutually protected occlusion where the vertical and horizontal overlap of the canine teeth causes disengagement of the posterior teeth in the lateral movement of the mandible 9 . It is also acknowledged that most patients are comfortable with their existing dentition and occlusion.
Why is anterior guidance important?
Second to a stable, seated condylar position (CR), a correct anterior guidance is the single most important factor in an optimal occlusion—one that will be steep enough to disclude the posterior teeth in any excursive movement while being concave enough to be in harmony with the envelope of function.
Can you have anterior guidance and group function?
Anterior guidance, which can be categorized as group function or canine guidance, is essential for esthetics, phonetics, and mastication. Where anterior guidance must be reestablished or where it changes, there currently appear to be more authorities who favor canine guidance over group function.
What is the significance of canine guidance?
Canine guidance is a feature where your canines ensure that the back teeth don’t contact when the jaw is slid to the side. This is important because the back teeth are good at taking longitudinal forces, but they are not built to take off-center forces.
What is Christensen phenomenon?
[C. Christensen, Danish dentist and educator] A gap occurring in the natural dentition or between the opposing posterior flat occlusal rims when the mandible is protruded (posterior open bite). It can lead to instability in full dentures unless compensating curves are incorporated into the dentures.
What is canine guidance and group function?
What is canine guidance and canine disclusion?
The disclusion thus removes the stress and strain of the horizontal forces on the posterior teeth that are exerted by the sideway motions of our jaws during chewing. The entire process, where the canines take off the load from the posterior teeth and bring back the intercuspation of the teeth is called canine guidance.
How can a faulty canine guidance be corrected?
A faulty canine guidance can be corrected based on the severity of the malocclusion caused by canine guidance. If the deformity is severe, repositioning of the canine would be favorable. This is usually done by an orthodontist. Defects may also lie in the slopes of the canine.
What is canine guidance in teeth?
It is important to note that canine guidance is more common for younger individuals. This type of guidance determines the chewing patterns and the extent of lateral movements of the jaw in young adults. As age progresses, the guidance shifts to something called as “group function,” that is well pronounced in teeth with flatter occlusal surfaces.
Why is canine guidance used for excursions?
This is because canine guidance will produce immediate disclusion of posterior teeth in excursions (one aspect of what is known as a ‘mutually protected occlusion’). Disclusion of the posterior teeth will reduce lateral forces on these teeth, reducing the chance of fracturing teeth/restorations.