Connection between the glenoid fossa walls and contacts

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fightingspirit

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I am having some difficulty understanding the very basics of dental occlusion. Please feel free to help if you feel that you can comfortably answer these questions or explain the relationships. If you cannot help answer or explain, perhaps you can recommend a multimedia or video illustration that can help in understanding these basic, yet difficult, concepts.

thanks

Can anyone explain any of the following statements:

1-in the working side of an excursion, position of the superior wall of glenoid influences the cusptip-to-opposing-incline relationship.
2-in the working side of an excursion, position of the posterior wall of glenoid influences the position of the occlusal lingual groove of the mandibular molars.
3-in the balancing side of a lateral excursion, the medial wall of glenoid is parallel to the distobuccal groove of the mandibular first molar (working or balancing side molar?).

Can anyone answer any of these?

Is a larger angle of cusp inclination tantamount to a higher cusp/cusptip?
How does the relation between the condyle and the eminence affect cusp height?
 

OMFSCardsFan

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I am having some difficulty understanding the very basics of dental occlusion. Please feel free to help if you feel that you can comfortably answer these questions or explain the relationships. If you cannot help answer or explain, perhaps you can recommend a multimedia or video illustration that can help in understanding these basic, yet difficult, concepts.

thanks

Can anyone explain any of the following statements:

1-in the working side of an excursion, position of the superior wall of glenoid influences the cusptip-to-opposing-incline relationship.
2-in the working side of an excursion, position of the posterior wall of glenoid influences the position of the occlusal lingual groove of the mandibular molars.
3-in the balancing side of a lateral excursion, the medial wall of glenoid is parallel to the distobuccal groove of the mandibular first molar (working or balancing side molar?).

Can anyone answer any of these?

Is a larger angle of cusp inclination tantamount to a higher cusp/cusptip?
How does the relation between the condyle and the eminence affect cusp height?

Don't worry too much about it...no one gets it at first. By the time the semester is over, you'll have looked at it enough that it'll start to make sense. If you still need help, you'd be better off asking someone who can show you in person.
 

DDS 08

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Just picture in your head where cusp tips are moving relative to the condyle.
In the situation you stated about the medial wall and the disto buccal groove. It is the balancing/non-working side molar. As the condyle translates, limited in its medial movement by the medial wall, the mesiolingual cusp of the max 1st molar(non-worknig side) would be exiting by way of the DB groove of the mand. (NW side) molar. If you picture this you should be able to see how altering the angle of the medial wall would influence the direction (not a whole lot, but it will alter it) the cusp exits through the groove. I hope that helps, and I also hope it is right. Eventually it all just clicks and makes sence. It's really just a lot of theory. Good luck.
 
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