Mandibular Advancement Planning Based on Clinical Overjet

Not Applicable

Not yet recruiting

• Conditions: Overjet; Class II Division 1 Malocclusion

• Registration Number: NCT06653075
• Lead Sponsor: IRCCS Ospedale San Raffaele

Brief Summary

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

Detailed Description

Not available

Study Timeline

• Status Verified: 2024-10
• Study First Submitted: 2024-10-17
• Study First Submitted QC: 2024-10-19
• Last Update Submitted: 2024-10-21
• Study First Posted: 2024-10-22
• Last Update Posted: 2024-10-23
• Study Start: 2024-10-30
• Primary Completion: 2024-12-30
• Study Completion: 2025-12-30

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• ANB>=4°
• Overjet >=4 mm
• Class II malocclusion ( bilateral class II molar relation, at least half a cusp)

Exclusion Criteria

• tooth agenesis
• poor oral hygiene
• previous orthodontic treatments
• systemic disease or bone pathology

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Planned mandibular advancement (mm)	1 year	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

Secondary Outcome Measures

Name	Time	Method
Obtained mandibular advancement (mm)	1 year	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

Trial Locations

Locations (1)

Vita-Salute San Raffaele University; 🇮🇹 Milan, Italy