Interocclusal contacts in MIP and excursive movements Flashcards
What are the two philosophies for interocclusal contacts?
*Cusp-Fossa contacts
*Cusp-Marginal Ridge contacts
What is a cusp-marginal rige occlusion?
Each Functional cusp contacts the marginal ridges of opposing pair of teeth or fossae of opposing teeth.
How many teeth arrangement is Cusp-marginal ridge?
1 tooth to two teeth arrangment
What is occlusion type is commonly used for single restorations?
Cusp-marginal ridge
What type of occlusion is cusp-fossa?
Each functional cusp occludes in a fossa of the opposing tooth
How many teeth arrangement is Cusp-fossa?
tooth to tooth arrangment
What occlusion type is used when retsoring both opposing quadrants of teeth?
cusp-fossa
The cusp-fossa relationship allows only for each cusp to occlude into ____ fossa.
one
The cusp-marginal ridge occlusal relationship allows for some cusps to occlude onto __________ ______ and some others to occlude into _________ ______.
marginal ridges
occlusal fossae
In anterior interocclusal contacts the mandibular central incisor contacts…
maxillary central incisor
- opposes only one tooth (only tooth to do this besides the max 3rd molar)
In anterior interocclusal contacts the mandibular lateral incisor contacts…
opposing maxillary central and lateral incisors
In anterior interocclusal contacts the mandibular canine contacts…
opposing maxillary lateral incisor and maxillary canine
In posterior interocclusal contacts the mandibular first premolar contacts…
- mesial marginal ridge of maxillary first premolar and the distal marginal ridge of the maxillary canine (cusp-marginal ridge)
or - mesial fossa of the maxillary first premolar (cusp-fossa)
In posterior interocclusal contacts the mandibular second premolar contacts…
- mesial marginal ridge of the maxillary second premolar and the distal marginal ridge of the maxillary first premolar (cusp-marginal ridge)
or - mesial fossa of the maxillary second premolar (cusp-fossa)
In posterior interocclusal contacts the mandibular first molar MB cusp contacts…
- mesial marginal ridge of the maxillary first molar and the distal marginal ridge of the maxillary second premolar (cusp-marginal ridge)
or - mesial triangular fossa of the maxillary first molar (cusp-fossa)
In posterior interocclusal contacts the mandibular first molar DB cusp contacts…
▪central fossa of the maxillary first molar (cusp-marginal ridge)
or
▪central fossa of the maxillary first molar (cusp-fossa)
In posterior interocclusal contacts the mandibular first molar D cusp contacts…
- usually non-functional/not in occlusion
or - contacts the distal fossa of the maxillary first molar (cusp-marginal ridge)
or - contacts the distal fossa of the maxillary first molar (cusp-fossa)
In posterior interocclusal contacts the mandibular second molar the MB cusp contacts…
*mesial marginal ridge of the maxillary second molar and the distal marginal ridge of the maxillary first molar (cusp-marginal ridge)
or
*mesial triangular fossa of the maxillary second molar (cusp-fossa)
In posterior interocclusal contacts the mandibular second molar MB cusp contacts…
- central fossa of the maxillary second molar (cusp-marginal ridge)
or - central fossa of the maxillary second molar (cusp-fossa)
What are the three types of excursive movements?
- right lateral movement
- left lateral movement
- protrusive movement
What are the cuspal pathways?
- working (laterotrusive)
- non-working (mediotrusive)
- protrusive
For anterior interocclusal contacts the maxillary central incisor contacts…
mandibular central and lateral incisors
For anterior interocclusal contacts the maxillary lateral incisor contacts…
opposing mandibular lateral incisor an mandibular canine
For anterior interocclusal contacts the maxillary canine contacts…
opposing mandibular canine and overhangs-contacts the mandibular premolar
For posterior interocclusal contacts the maxillary first premolar contacts…
- distal fossa of the mandibular first premolar
OR - distal marginal ridge of the mandibular first premolar molar and mesial marginal ridge of the mandibular second premolar (cusp-marginal ridge)
or - distal fossa of the mandibular first premolar (cusp-fossa)
For posterior interocclusal contacts the maxillary second premolar contacts…
- distal fossa of the mandibular second premolar
OR - distal marginal ridge of the mandibular second premolar molar and the mesial marginal ridge of the mandibular first molar (cusp-marginal ridge)
or - distal fossa of the mandibular second premolar (cusp-fossa)
For posterior interocclusal contacts the maxillary first molar ML cusp contacts…
- central fossa of the mandibular first molar (cusp-marginal ridge)
or - central fossa of the mandibular first molar (cusp-fossa)
For posterior interocclusal contacts the maxillary first molar DL cusp contacts…
- distal marginal ridge of the mandibular first molar and the mesial marginal ridge of the mandibular second molar (cusp-marginal ridge)
or - distal fossa of the mandibular first molar (cusp-fossa)
For posterior interocclusal contacts the maxillary second molar ML cusp contacts…
- central fossa of the mandibular second molar (cusp-marginal ridge)
or - central fossa of the mandibular second molar (cusp-fossa)
For posterior interocclusal contacts the maxillary second molar DL cusp contacts…
- distal marginal ridge of the mandibular second (cusp-marginal ridge)
or - distal fossa of the mandibular second molar (cusp-fossa)