Class I #30 Example 1

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Walls and margins are finished with slight catches in rough areas, particularly around the buccal regions where moderate lack of cavity definition exists. Retention is compromised due to wall angulation being moderately deviated, resulting in B/D/M walls that diverge. The external outline form shows an overextended shape with lines or curves that are moderately irregular. Internally, the floor undulates less than 1.0mm from its ideal position and exhibits moderate shallowness or depth of less than 1.0mm deviation.