Which of the following is NOT a mucogingival procedure?

Mucogingival procedures are surgical techniques aimed at correcting problems related to the gingiva and the mucogingival junction. These procedures focus on enhancing the aesthetics and functional aspects of the gum tissue, often addressing issues like gum recession, inadequate tissue thickness, or the need for soft tissue augmentation.

Root coverage involves grafting techniques to cover exposed tooth roots, thereby improving aesthetics and function by restoring the protective gum tissue. Gingival dimension augmentation focuses on increasing the volume or thickness of the gingiva to enhance gum health and aesthetics. Enhanced ridge contour refers to procedures aimed at improving the shape or contour of the alveolar ridge, which can indirectly relate to the health and appearance of the adjacent gingiva.

In contrast, orthodontic expansion is primarily an orthodontic procedure that involves the widening of the dental arch to correct malocclusion and achieve proper alignment of teeth. While it may influence soft tissue positioning, it does not directly address mucogingival conditions or engage in procedures that modify the mucogingival junction. Hence, orthodontic expansion is not classified as a mucogingival procedure.