Occlusal Rims Flashcards
incisal edge on the occlusal rim
approximately 6mm forward of the incisive papilla
midline is determined?
by the face - and once determined - the midline should be transferred to the facial aspect of the cast
direction of maxillary anterior ridge resorption?
occurs from anterior towards posterior/superior
mandibular anterior teeth are centered where?
on the crest of ridge
anterior crest of ridge line – centered to the lower crest of ridge
maxillary posterior ridge crest lines - importance and locaion
draw at the peak of the residual ridge
maxillary posterior teeth are generally set slightly buccal to the crest ridge line
maxillary posterior teeth set where?
slightly buccal to the crest of ridge to prevent cheek biting so maxillary teeth should be offset approx. 2mm to the buccal of the mandibular teeth (for class I patient)
mandibular posterior ridge crest lines
these are centered to the ridge and the posterior teeth are generally set centered or slightly lingual to the crest of ridge - also helps with minimizing cheek biting and stabilize the denture
posterior limit of teeth on mandibular
end right before the maxillary tuberosity at the rise of the ramus and parallel to the ridge crest line
what determines the height of the occlusal plane?
the retromolar pad landmark determines the height
denture teeth are never set higher than 2/3 the height of RMP or denture will become unstable
width of anterior bicuspid area and posterior on maxillar
4 mm
6mm - bicuspid
8 mm - posterior
(always 2mm on the lingual aspect of the dividing line on posterior)
all 4mm on anterior aspect is anterior to the incisive papilla
lingual surface of occlusal rim?
narrowed and tapered occlusally to replicate teeth
during which visit will you check for lip fullness, lip length, smile line, canine line, phonetics, ridge relationship, VDO, VDR, flush contact?
During Intermaxillary Record visit - occlusal rim : clinical adjustment
all maxillary teeth are set?
buccal or slightly buccal to the ridge
all mandibular teeth are set?
centered to the ridge
posterior of maxillary on rim?
parallel to residual ridge
