STATIC OCCLUSION - Occlusal Contacts & Picket Fence

In this video, we look at easy ways to figure out where cusps will contact on the opposing arch!
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[@nnnnnnnn-b8v]

U R the best.

[@Bindel84Gab]

hi, could you please write the corresponding acronyms regarding the practice questions: dmr, mmr. i'm guessing df is disto-facial and mf mesio facial right?

[@mentaldental]

Yes, absolutely!
MF= mesiofacial
DF distofacial
MMR= mesial marginal ridge
DMR= distal marginal ridge

[@user-eb9xw7xg6i]

Hello Dr.Ryan, first of all thank you so much for your amazing videos! I have a question, when the buccal cusp of mandibular premolar occludes with the marginal ridge of maxillary premolar, is it on the mesial marginal ridge of second premolar or distal marginal ridge of first premolar? how to figure that out?

[@manishasonker5404]

Hi Dr. Ryan, I am unable to understand this picket fence design. Can you please explain. The question is buccal cusp ridge of the maxillary first premolar on the working side oppose which mandibular structure. I am not getting how to do this at all. Kindly tell. Thank you 🙏

[@mentaldental]

Hi Manisha! The picket fence is designed for questions concerning static occlusion, where the teeth are contacting together and not moving around. As soon as you mention "working side," you are talking about the teeth actively moving and you need something other than the fence to answer that! Go watch my newest video on this very topic to help you answer that question: ua-cam.com/video/ITkdMBIIdXU/v-deo.html

[@yippletop]

Thanks. Great video

[@janicejudith158]

Thanks for the video
I am having probs understanding which cusp tip is df, ml,dL, mmr on the picket fence pls can you help me urgently.

[@mentaldental]

Sure--so all of the upper cusps are lingual because these are the functional cusps for the maxillary arch (the ones in direct contact with the mandibular arch). Going from left to right on the picket fence then, the triangle parts that stick down are DL of third molar, ML of third molar, DL of second molar, ML of second molar and so on. The opposite is true for the lower cusps which are all facial because these are the functional cusps for the mandibular arch. So going from left to right the triangle parts that stick up are DF of third molar, MF of third molar, DF of second molar, MF of second molar, and so on. The depressions between the triangles are either the fossa (if they are in the middle of a tooth) or are marginal ridges (if they coincide with vertical lines that go between the teeth). Hopefully that helps, good luck!

[@janicejudith158]

Mental Dental yes, thanks so much.

[@AAW961]

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[@user-mx2ew3oc1m]

谢谢分享

[@razikanor1245]

je suis une étudiante en médecine dentaire à Algerie c'est vraiment dommage nos études en français .. si on étudie en Anglais on comprend mieux parceque il'ya beaucoup D vidéos disponible de tt science et merci c'est comprhensible avec la photo lol

[@cocoalpes]

poo ball