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More model informationo The ML cusp is larger that the DL cusp. If there is only one cusp, it is located towards the mesial
o Round occlusal outline
More rounded and less defines buccal anatomy
When 3 cusps are present, we have a Y shaped occlusal surface, formed by the mesial and distal grooves and the lingual groove. These grooves connect in the central pit
o When two cusps are present it may present a U shaped occlusal, or an H shaped, which makes it similar to maxillary premolars. It can be differentiated by the tip on the buccal surface, rounded outline, and shorter BL length
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