Which statement accurately describes characteristics of permanent teeth?

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Roots of maxillary teeth tilt distally, while roots of mandibular teeth tilt mesially.Maxillary molars lean towards the cheek side, whereas mandibular molars lean towards the tongue side.The functional cusps are the buccal cusps on lower teeth and the lingual cusps on upper teeth.All of the statements above are correct.

Explanation

Option A is correct because maxillary roots generally incline distally, and mandibular roots incline mesially. Option B is true as maxillary molars are inclined buccally and mandibular molars lingually. Option C is accurate since the functional cusps for lower teeth are buccal, and for upper teeth are lingual. Therefore, option D, which includes all these facts, is the correct choice.