Effectiveness of comprehensive fixed appliance treatment used with the Forsus Fatigue Resistant Device in Class II patients.

Abstract

OBJECTIVE:

To assess the dental, skeletal, and soft tissue effects of comprehensive fixed appliance treatment combined with the Forsus Fatigue Resistant Device (FRD) in Class II patients.

MATERIALS AND METHODS:

Thirty-two Class II patients (mean age 12.7 ± 1.2 years) were treated consecutively with the FRD protocol and compared with a matched sample of 27 untreated Class II subjects (mean age 12.8 ± 1.3 years). Lateral cephalograms were taken before therapy and at the completion of comprehensive therapy. The mean duration of comprehensive treatment was 2.4 ± 0.4 years. Statistical comparisons were carried out with the Student's t-test (P < .05).

RESULTS:

The success rate was 87.5%. The FRD group showed a significant restraint in the sagittal skeletal position of the maxilla (also at the soft tissue level), a significant increase in mandibular length, and a significant improvement in maxillo-mandibular sagittal skeletal relationships. The treated group exhibited a significant reduction in overjet and a significant increase in molar relationship. The lower incisors were significantly proclined and intruded, while the lower first molars moved significantly in a mesial and vertical direction.

CONCLUSIONS:

The FRD protocol is effective in correcting Class II malocclusion with a combination of skeletal (mainly maxillary) and dentoalveolar (mainly mandibular) modifications.

• Authors: Lorenzo Franchi, Lisa Alvetro, Veronica Giuntini, Caterina Masucci, Efisio Defraia, Tiziano Baccetti
• Journal: The Angle orthodontist (Angle Orthod) Vol. 81 Issue 4 Pg. 678-83 (Jul 2011) ISSN: 1945-7103 [Electronic] United States
• PMID: 21299410 (Publication Type: Controlled Clinical Trial, Journal Article)

Topics

• Adolescent
• Cephalometry
• Child
• Dental Stress Analysis
• Female
• Humans
• Male
• Malocclusion, Angle Class II (therapy)
• Orthodontic Appliance Design
• Orthodontic Appliances, Functional
• Orthodontics, Corrective (instrumentation)
• Single-Blind Method
• Treatment Outcome