Mandibular Advancement Planning Based on Clinical Overjet
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age6-50
SponsorIRCCS Ospedale San Raffaele
About this trial
This Prospective study aims to simulate the maximum mandibular advancement in class II patients treated by Herbst MTH Appliance on the base on clinical overjet.
Initial intraoral scans will be uploaded in Suresmile software, the upper incisors will be virtually aligned and the mandible will be advancement until an anterior occlusal contact will be reached. This virtual advancement will be compared to the real advancement obtained at the end of the Herbst phase.
This protocol will be applied to two groups: one with traditional dental occlusion, the second one with Skeletal anchorage reinforcement and elastic chains
Eligibility criteria
This trial accepts healthy volunteersQualifiers
ANB>=4°
Overjet >=4 mm
Class II malocclusion ( bilateral class II molar relation, at least half a cusp)
Disqualifiers
tooth agenesis
poor oral hygiene
previous orthodontic treatments
systemic disease or bone pathology
Trial design
Design model
Parallel
Treatments tested in this trial
mandibular advancement with acrylic splint Herbst Appliance
Procedure/SurgeryMandibular advancement with acrylic splint Herbst Appliance
Treatment groups
50 Participants
are divided into 2 treatment groupsGroup A: traditional anchorageActive comparator 1 intervention
Group B: skeletal anchorageExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Planned mandibular advancement (mm)
The "planned mandibular advancement" will be evaluated on the STL of the arches by simulating a sagittal mandibular advancement , until an anterior occlusal contact will be reached
Time frame
1 yearSecondary outcomes
1
Obtained mandibular advancement (mm)
The obtained mandibular advancement will be evaluated comparing the Sagittal position of the Pogonion (according to cephalometric pancherz's analysis) on the lateral ceph before and after the treatment
Time frame
1 yearSponsors and contacts
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Source ClinicalTrials.gov
This trial is not recruiting at the moment. You can still explore other options: