Intercuspal Positions

[era]

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Can Someone Explain Me ......how To Solve This Type Of Questions In Which
In An Ideal Intercuspal Postion,when Mandible Makes Right Lateral Excursion,the Mesiolingual Cusp Of The Permanent Maxillary Right First Molar Opposes The.....sulcus Between The Lingual Cusps Of The Mandibular First Molar

 

[Supernova2008]

There are only 2 major concepts that you need to know to make sense of all of these problems...First, all mandibular teeth are positioned mesial and lingual to their maxillary counterparts (example : mandibular 1st premolar is mesial & lingual to the maxillary 1st premolar). Second, anytime you have an excursive movement, only the mandible is moving. The maxilla is always stationary. Now you just have to analyze which parts of the teeth would be where in your head. Good luck...