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Orthodontics - 3 Questions
The part of the removable appliance which provides the anchorage is
1) Adams clasp 2) Base plate 3) Active labial bow 4) Guided springs
SOLUTION
Baseplate: The hard plastic part of some retainers that covers the gum and has the wire components of the retainers attached to it.
What dental relationship is present in an Angle Class I occlusion?
1. The buccal cusp of the maxillary second premolar aligns with the mesiobuccal groove of the mandibular first molar. 2. The cusp of the maxillary canine aligns with the cusp of the mandibular canine. 3. The mesiobuccal cusp of the maxillary first molar aligns with the mesiobuccal groove of the mandibular first molar. 4. The mesiobuccal cusp of the maxillary first molar aligns with the embrasure between the mandibular first molar and second premolar.
The mesiobuccal cusp of the maxillary first molar aligns with the mesiobuccal groove of the mandibular first molar.
An increase or decrease in the Y axis is related to:
1) The growth pattern 2) Extrusion of molars 3) Intrusion of molars 4) All of the above
MCQ