Indication of bottom bridge

Stenosis of mandibular alveolar ridge. The indication of foot bridge is mandibular alveolar ridge stenosis, which is suitable for different patients. Bottom bridge: the gingival end of the bridge is in bottom contact with the top of alveolar ridge, with the smallest contact area and easy cleaning. However, the triangular space between the lower lip, cheek, tongue and alveolar ridge of the bridge is easy to retain food.