| functional occlusion | Any tooth contacts made within the functional range of the opposing teeth surfaces, occlusion which occurs during function. (05 Mar 2000) |
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| line of occlusion | The alignment of the occluding surfaces of the teeth in the horizontal plane. See: occlusal plane. (05 Mar 2000) |
| lingual occlusion | Interdigitation of the teeth as seen from the internal or lingual aspect. See: linguoclusion. (05 Mar 2000) |