In general, posterior embrasures are larger on the tongue side compared to the cheek side, with the contact point located on the cheek portion, except between which maxillary teeth?

Explanation

Posterior embrasures tend to be more expansive on the lingual side than on the facial side, with the contact area positioned within the facial half. However, this pattern does not apply between the maxillary first molar and second premolar, where the embrasure characteristics differ.