Brachygnathia with decidious Canine advice

RE: Brachygnathia with decidious Canine advice

Lucy Fleming — Tue, 09 Apr 2019 16:39:18 GMT

[quote user="Evelyn Barbour-Hill"]swine-chopped[/quote]

WTF?

RE: Brachygnathia with decidious Canine advice

Evelyn Barbour-Hill — Tue, 09 Apr 2019 16:28:27 GMT

[quote user="Chris Allen"]

[quote user="Evelyn Barbour-Hill"]

Or you could just say overshot and undershot.....

[/quote]

But what does each of them words mean as I get confused whether it is undershot because the mandible is shorter or because it extends past the maxilla?

[/quote]

Did you miss the ?

You could always avoid the confusion by noting that the dog is swine-chopped.

RE: Brachygnathia with decidious Canine advice

Norman Johnston — Mon, 01 Apr 2019 22:42:02 GMT

https://www.avdc.org/Nomenclature/Nomen-Occlusion.html

RE: Brachygnathia with decidious Canine advice

Chris Allen — Mon, 01 Apr 2019 22:36:11 GMT

[quote user="Evelyn Barbour-Hill"]

Or you could just say overshot and undershot.....

[/quote]

But what does each of them words mean as I get confused whether it is undershot because the mandible is shorter or because it extends past the maxilla?

RE: Brachygnathia with decidious Canine advice

Evelyn Barbour-Hill — Mon, 01 Apr 2019 22:27:02 GMT

Or you could just say overshot and undershot.....

RE: Brachygnathia with decidious Canine advice

Chris Allen — Mon, 01 Apr 2019 22:23:39 GMT

Hi Alex,

Definately interested in the correct descriptive terms, is there a class reference?

Thanks,

Chris

RE: Brachygnathia with decidious Canine advice

Alexander Geddes — Mon, 01 Apr 2019 19:40:01 GMT

Hi Chris, great job on identifying these and recommending exactly the right treatment!

I agree with everything Rob mentioned and below is Norman Johnston's top tips for this procedure.

I'm a nomenclature geek so just for your interest (or maybe not!) - brachygnathia just means short jaw - it doesn't specify which jaw is short. So if you want to stick to that term - either use mandibular brachygnathism or maxillary prognathism for this condition. To get really pedantic, we don't really like either of those terms because we're being specific about which one is longer/shorter/normal etc. So we prefer to simply place them into classes, this being class II, otherwise you could describe it as mandibular distoclusion - simply meaning caudally positioned relative to the maxilla - rather than trying to determine cephalometrics.

Hope that helps!

https://www.dentalvets.co.uk/common-cases/lingually-displaced-canines

RE: Brachygnathia with decidious Canine advice

Rob Davis — Mon, 01 Apr 2019 18:55:59 GMT

Radiographs are really helpful to identify exactly where the adult teeth are (I usually take 2 views). They are usually positioned on the palatal/lingual side of the deciduous root. I always do flaps for these. Avoid using any instruments on the palatal/lingual sides of the roots - the developing adult teeth are very fragile at this stage. Be patient.....it is easy to fracture the deciduous roots if you apply any significant force, so keep working away at the ligament until it's ready to come.

Norman Johnston gave a talk on these at the EVDS Forum in Malaga a couple of years ago so he may have more tips!

I don't believe there is anything else you can do at this stage to encourage the adult canines to move into the correct position, but monitor them frequently. Ball therapy, crown extensions, incline planes etc can all be used where appropriate once they are erupting.