| Bonwill triangle | An equilateral triangle formed by lines from the contact points of the lower central incisors, or the medial line of the residual ridge of the mandible, to the condyle on either side and from one condyle to the other. (05 Mar 2000) |
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| Bonwill, William | <person> U.S. Dentist, 1833-1899. See: Bonwill triangle. (05 Mar 2000) |