9. Which type of mandibular major connectors is the choice of design whenever possible? What is the anatomical requirement for the design? When not feasible, what is the alternative?
- Lingual Bar: Sufficient space (7-8mm) must be available between the floor of the mouth (lingual frenum) and the crest of the gingiva.
- 2. The superior portion of the bar is positioned well away (3mm) from the gingival crest tissue.
- The lingual bar is the design of choice whenever possible because of simplicity and minimal tooth and mucosa contact.
- Lingual Plate: clinical examination indicates a high lingual frenum and floor of mouth attachments, with insufficient space (<7-8mm) to place a lingual bar
- When the anterior teeth are periodontally compromised and a support from the lingual side deemed benifitial.