Dr. Kahn from the UK asks us:
What are the functions of canine protected occlusion and what percentage of people have it?
Have an answer for Dr. Kahn. Please leave your comments below.
For additional thoughts on Patterns of Occlusion and dental implants, please click here.
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The canine protected occlusion is a concept that helps prevent damage to posterior restorative work during bruxing. This is a typical dental engineering hardware solution to reduce contacts between posterior teeth through parafunction. But even canines wear! So I would suggest that the software be reprogrammed by teaching your patients not to clench or brux and to learn to act naturally – to keep their teeth apart. The occlusion is secondary and its science and study is the biggest myth in dentistry!
The occlusion wars are well documented between the different camps of dentistry.
So many teeth and so many ideas. I am sure of a few things. IF we find a common ground on the things we agree on ….one of them would be…..”It is not the teeth but what the patient does with them.” Jim Boyd
The next thing… Parafunctional habits kill implants because over loading kills implants.
Let the game begin but I will tell something, we people in the implant world seem to want to help other dentists more than yelling at each other about CR, CO, and other minutiae….
Well how come in four years no one carried this thread forward. Something on which the future of the entire restorative work depends upon and no one is bothered?
Are Canine protected occlusion, mutually protected occlusion and canine lift occlusion related?? Do they mean one and the same thing?? Kindly solve this query!
I am a Prosthodontist from India and I do understand what must be running through Dr Saxena’a mind.
First of all the term ‘Mutually protected occlusion’ means that one or a group of teeth mutually protect the remaining ones from constant biting forces. Simply put that when a person bites on his/her front teeth the posterior teeth DO NOT contact, hence relieving them of occlusal loading. (remmember Christensen’s Phenomena. This happens when one bites on the front anterior teeth.
When there is a lateral component added to the way a person bites which is normal (Anterolateral) then probably only the Canine on the working side maybe the tooth in contact dis-occluding all the other teeth. This is called ‘Canine Guided Occlusion’( The Canines Guide the Occlusion) Also called ‘Cuspid Rise’. A Type of Mutually Protected Occlusion.
In the same situation when a group of teeth on the working side Eg: the Canine, Ist Premolar, and the 2nd Premolar are in contact and the other teeth are Dis-occluded then this type of Mutually Protected Occlusion is Termed ‘GROUP FUNCTION’ simply because a group of teeth function to bring about a mutually protected Occlusal Scheme. I Hope that answers your question Dr Saxena.
The relevance in Implant Dentistry in very significant where the patient’s primary type of occlusal scheme should be retained in the Prosthetic rehabilitation after the Implants have been Osseointegrated.
Further reading can be concentrated towards- ‘IPO’ IMPLANT PROTECTED OCCLUSION.
Thanks, Dr Rangan! The terms are absolutely understood now.. Very well-explained! I shall read more on IPO. Thanks!
Are Canine rise disclusion is canine protected occlusion?