What would the problems a patient with a Class II jaw
relationship could possibly encounter if a full maxillary and mandibular
denture for that patient were set up in a Class I occlusion.
Exaggerated labial and buccal position of mandibular teeth
would create:
·
Labial lip infringement of mandibular anteriors
if set into normal Class I relationship.
·
Denture tilting when incising
·
Injury to ridge and soft tissues
·
Phonetic problem (S and th)
·
Possible aesthetic disfiguration leading to
psychological problems (self conscious and uncomfortable with the dentures)
·
Insufficient maxillary labial support due to
compromising maxillary anterior position to reduce the labial overjet.
·
Change in lip and cheek muscle support if
mandibular posterior teeth are set off the ridge in an exaggerated buccal
position to occlude with maxillary posterior teeth in Class I position.
·
Lever action and dislodgement of mandibular
denture during function
(leverage stresses could also lead
to possible fracture of mandibular denture)
·
Denture tilting when incising
