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Learners & clinicians · Applied mechanics
Close extraction spaces by retracting the anterior segment while preventing mesial molar migration and maintaining lower incisor inclination.
Learners & clinicians · Applied mechanics
Retract the maxillary anterior segment to reduce overjet (Class II camouflage / dentoalveolar protrusion) while maintaining upper incisor torque and preventing mesial migration of the maxillary molars.
Learners & clinicians · Applied mechanics
Coordinate maximum-anchorage retraction of both arches to reduce bimaxillary dentoalveolar protrusion and improve the lip profile, keeping upper/lower retraction balanced so the molar relationship stays Class I and the midlines coincident.
Learners & clinicians · Applied mechanics
Shift the upper anterior segment toward the deviated side to correct the dental midline, using differential left-vs-right anchorage and asymmetric force systems while avoiding a new posterior or molar asymmetry.
Learners & clinicians · Applied mechanics
Retract and retrocline the lower anterior segment (and often procline the uppers) to correct the incisor relationship and camouflage a mild-to-moderate skeletal Class III, staying inside the lower-incisor inclination limit set by the labial alveolar bone.
Learners & clinicians · Applied mechanics
Relieve lower crowding / retract the lower labial segment using lower-only premolar extraction, while planning the lower anchorage so the buccal occlusion finishes in an agreed relationship despite the unmatched upper arch.
Learners & clinicians · Applied mechanics
Close the second-premolar extraction spaces mainly by mesial movement (protraction) of the posterior segments, preserving incisor position in a minimum/moderate-anchorage case where little anterior retraction is wanted.
Learners & clinicians · Applied mechanics
Close the edentulous molar space by protracting the posterior teeth forward into the site while a contralateral compensating extraction balances the arch, keeping the midline centred and the occlusal plane level despite the built-in left-right asymmetry.
Learners & clinicians · Professional study
Class II Case Questions questions for study and self-testing. Coverage is selective; sources are shown with the answers.
Learners & clinicians · Professional study
Class III Case Questions questions for study and self-testing. Coverage is selective; sources are shown with the answers.
Learners & clinicians · Professional study
Extraction Decisions & Tissue Response questions for study and self-testing. Coverage is selective; sources are shown with the answers.
Learners & clinicians · Professional study
Non-Extraction Decisions questions for study and self-testing. Coverage is selective; sources are shown with the answers.
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