Artificial teeth

A set of artificial teeth (6), comprising:

• a maxillary unit (7) and a mandibular unit (8);
• wherein the maxillary unit (7) comprises a wax or resin base (9) supporting maxillary posterior teeth ((7a), (7b), (7c), and (7d)), wherein the wax or resin base (9) can be softened by heat;
• wherein the mandibular unit (8) comprises a wax or resin base (10) supporting mandibular posterior teeth ((8a), (8b), (8c), and (8d));
• wherein the maxillary posterior teeth each comprise a buccal cusp selected from buccal cusps ((7a′), (7b′), (7c′), and (7d′));
• wherein the mandibular posterior teeth each comprise a buccal cusp selected from buccal cusps ((8a′), (8b′), (8c′), and (8d′));
• wherein the maxillary posterior teeth and the mandibular posterior teeth are in a lingualised occlusion;
• wherein at least one of following occurs, when the maxillary posterior teeth and the mandibular posterior teeth are in a lingualised occlusion:
• palatal cusp (1a) of the maxillary posterior tooth (7a) fits into distal fossa (1b) of the mandibular posterior tooth (8a);
• palatal cusp (2a) of the maxillary posterior tooth (7b) fits into distal fossa (2b) of the mandibular posterior tooth (8b);
• mesial palatal cusp (3a) of the maxillary posterior tooth (7c) fits into central fossa (3b) of the mandibular posterior tooth (8c);
• distal palatal cusp (4a) of the maxillary posterior tooth (7c) fits onto marginal ridge (4b) of the mandibular posterior tooth (8c);
• and
• mesial palatal cusp (5a) of the maxillary posterior tooth (7d) fits into central fossa (5b) of the mandibular posterior tooth (8d);
• and
• wherein buccal cusps ((8a′), (8b′), (8c′), and (8d′)) are out of contact with maxillary posterior teeth ((7a), (7b), (7c), and (7d)), such that the cusp/fossa dimensions and relationships of the teeth concerned enable a lingualised occlusion for the teeth to be changed from the lingualised to a balanced occlusion by softening wax or resin under the maxillary posterior teeth and rotating buccal cusps ((7a′), (7b′), (7c′), and (7d′)) downwards around the palatal cusps ((1a), (2a), (3a), (4a), and (5a)) on the maxillary posterior teeth such that the palatal cusps remain within centric stops ((8a*), (8b*), (8c*), and (8d*) of the mandibular posterior teeth.