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Prosthodontics
Dentoskeletal Effects Of The Cast-splint Herbst, Twin-block, And Twin-force Bite Corrector Devices Used To Correct Class Ii Malocclusion : Three-year Follow-up.

Home
Research Domains
Biomedical And Clinical Sciences
Dentistry
Prosthodontics
Dentoskeletal Effects Of The Cast-splint Herbst, Twin-block, And Twin-force Bite Corrector Devices Used To Correct Class Ii Malocclusion : Three-year Follow-up.

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Dentoskeletal effects of the cast-splint Herbst, twin-block, and twin-force bite corrector devices used to correct class II malocclusion : Three-year follow-up.

Buket Pala Mutlu¹, Burak Gülnar², Taner Öztürk³

¹Department of Orthodontics, Faculty of Dentistry, Karadeniz Technical University, 61080, Trabzon, Turkey.

Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopadie : Organ/Official Journal Deutsche Gesellschaft Fur Kieferorthopadie

|June 11, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Keywords:

Cephalometric analysis Functional jaw orthopedics Functional orthodontic appliances Stability

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Orthodontic treatment for skeletal class II division 1 malocclusion using functional appliances followed by fixed appliances shows stable dentoskeletal changes over 3 years. Soft tissue adaptations were more pronounced than skeletal changes, with the TFBC appliance demonstrating less skeletal effect.

Area of Science:

Orthodontics
Craniofacial Orthopedics
Dental Research

Background:

Skeletal class II division 1 malocclusion requires effective treatment strategies.
Functional jaw orthopedic appliances are used to correct skeletal discrepancies.
Evaluating the long-term stability of dentoskeletal changes is crucial.

Purpose of the Study:

To assess the 3-year stability of dentoskeletal changes after treating skeletal class II division 1 malocclusion.
To compare the stability of removable and fixed functional orthopedic appliances followed by fixed orthodontic appliances.
To analyze cephalometric changes in different treatment groups and a control group.

Main Methods:

Retrospective observational study analyzing lateral cephalograms of 42 treated individuals and 7 controls.

Treatment outcome

Measurements taken at treatment start (T0), end (T1), and 3-year follow-up (T3).

Three treatment groups: cast-splint Herbst (CSH), twin-block (TWB), and twin-force bite corrector (TFBC).

Main Results:

Significant differences in cephalometric parameters (Co-Gn, Co-Go, Co-A, Wits appraisal, overbite, overjet, lower lip-E line) during follow-up.
Greater increases in Co-Gn, Co-Go, and Co-A in the control group compared to treatment groups.
Higher increases in overjet and overbite in treatment groups; lower lip-E line regression observed in most treatment groups.

Conclusions:

Orthodontic treatment with functional jaw orthopedics followed by fixed appliances is stable for 3 years.
Soft tissue changes are more frequent than skeletal changes post-treatment.
The twin-force bite corrector (TFBC) appliance showed a lesser skeletal effect compared to CSH and TWB appliances.