Class III preparation - help needed!

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degol

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Considering class III preparation with palatal acces on a maxillary lateral incisor for composite, DO YOU MAKE BOTH PULPAL AND AXIAL WALL in the preparation, or just have AXIAL with beveled margins (like a box)👍 ?
Books are really confusing me, since I know that for composite filling dovetail for retention is not a doctrine.

Please, reply!

Thanks
 
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