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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
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| traditional anchorage | Active Comparator | Skeletal class II patients treated by Herbst Appliance with traditional dental anchorage |
|
| skeletal anchorage | Experimental | Skeletal class II patients treated by Herbst Appliance with skeletal anchorage |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| mandibular advancement with acrylic splint Herbst Appliance | Procedure | Mandibular advancement with acrylic splint Herbst Appliance |
|
| Measure | Description | Time Frame |
|---|---|---|
| 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 | 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| 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 | 1 year |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Andrea Boggio, DDS, PhD | Contact | +393339019030 | andreaboggio90@gmail.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Vita-Salute San Raffaele University | Milan | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28389184 | Result | Manni A, Lupini D, Cozzani M. Les elastiques intermaxillaires a ancrage osseux dans une malocclusion de Classe II asymetrique : une etude de cas. Int Orthod. 2017 Jun;15(2):263-277. doi: 10.1016/j.ortho.2017.03.012. Epub 2017 Apr 25. No abstract available. French. | |
| 38471383 | Result | Manni A, Boggio A, Gastaldi G, Cozzani M. Is significant mandibular advancement possible after the peak of puberty? Dento-osseous palatal expansion and the STM4 technique (Skeletal Therapy Manni Telescopic Herbst 4 miniscrews): A case report. Int Orthod. 2024 Jun;22(2):100868. doi: 10.1016/j.ortho.2024.100868. Epub 2024 Mar 11. |
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| ID | Term |
|---|---|
| D057887 | Overbite |
| D008312 | Malocclusion, Angle Class II |
| ID | Term |
|---|---|
| D008310 | Malocclusion |
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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| ID | Term |
|---|---|
| D019186 | Mandibular Advancement |
| ID | Term |
|---|---|
| D019647 | Oral Surgical Procedures |
| D013514 | Surgical Procedures, Operative |
| D003813 | Dentistry |
| D009970 | Orthodontics |
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| 39307830 | Result | Manni A, Boggio A, Caldara G, Gastaldi G, Cozzani M. Herbst appliance with four-miniscrew anchorage for mandibular advancement after the pubertal peak. J Clin Orthod. 2024 Aug;58(8):505-513. No abstract available. |
| 23814587 | Result | Manni A, Pasini M, Mauro C. Comparison between Herbst appliances with or without miniscrew anchorage. Dent Res J (Isfahan). 2012 Dec;9(Suppl 2):S216-21. doi: 10.4103/1735-3327.109762. |
| 33563504 | Result | Manni A, Mutinelli S, Cerruto C, Cozzani M. Influence of incisor position control on the mandibular response in growing patients with skeletal Class II malocclusion. Am J Orthod Dentofacial Orthop. 2021 May;159(5):594-603. doi: 10.1016/j.ajodo.2020.02.014. Epub 2021 Feb 7. |
| 31677670 | Result | Manni A, Migliorati M, Calzolari C, Silvestrini-Biavati A. Herbst appliance anchored to miniscrews in the upper and lower arches vs standard Herbst: A pilot study. Am J Orthod Dentofacial Orthop. 2019 Nov;156(5):617-625. doi: 10.1016/j.ajodo.2018.11.015. |