| The furcation is repeated a variable number of times in the different species. |
| For probing furcation lesions from different angles, both in the upper and in the lower jaw region. |
| As growth proceeds, intercalated or bifurcate ribs may appear between the paired ribs, furcation normally occurring on the lower third of the flank. |
| When treating defects, Class II furcation defects are often considered good candidates for GTR treatment. |
| Access to the mesial furcations is best from the lingual surface because the furcation entrance is located lingually and not directly in the midline. |
| Part A: intra-bony defects, furcation defects and periodontal plastic surgery. |
