Short-term dentoskeletal changes following Class II treatment using a fixed functional appliance: the Austro Repositioner

Austro, M. Dolores; González, Emilio; Peñalver, M.A.; Pérez, Domingo; Alarcón, José Antonio

doi:10.1007/s00056-018-0135-3

Cited by 2 publications

(10 citation statements)

References 32 publications

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“…The results observed in the present study regarding the stability at one-year follow-up confirm the effects observed in the short term [ 10 ] and, therefore, indicate that the Austro Repositioner is an effective fixed functional device for treating skeletal Class II malocclusion with a mandibular origin. It also allows the vertical dimension to be modified, so it would be especially indicated for treatment of patients with a brachyfacial growth pattern.…”

Section: Discussionsupporting

confidence: 85%

“…Subjects were treated in two phases. The first phase comprised the Austro Repositioner appliance, according to a previously described protocol [ 10 ] ( Figure 1 ), specially designed by brachyfacial patients; in brief, the acrylic resin wedge was extended to the upper incisors, and in this anterior segment, the wedge was 1.0–1.5 mm thicker.…”

Section: Methodsmentioning

confidence: 99%

“…For all subjects, standard lateral cephalometric radiographs with the teeth in centric occlusion and the head oriented horizontally with the Frankfort plane were acquired according to a previously described protocol [ 10 ]. Linear and angular measurements from the analyses of Steiner [ 16 ], Ricketts [ 17 ], and McNamara [ 18 ] (SNA (°), SNB (°), ANB (°), Pt A-Na perp (mm), Pg-Na perp (mm), Co-Pg (mm), FMA (°), LAFH (mm), overbite (mm), overjet (mm), U1 to SN (°), L1 to GoMe (°), interincisive angle (°), were measured using Dolphin Imaging 11.0 software (Chatsworth, CA, USA).…”

Section: Methodsmentioning

confidence: 99%

“…The sample size was established with two simple t -tests, a study power of 90%, a significant level of 0.05, and a detected difference of 1.2°, based on a previous study [ 10 ]. The results showed that a minimum of 20 patients was needed in each group.…”

Section: Methodsmentioning

confidence: 99%

“…One of the most interesting aspects to consider regarding functional appliances is their ability to modify the vertical growth pattern, with it being an essential tool for the therapeutic approach of this malocclusion. A previous study about a recent fixed functional appliance, the Austro Repositioner, found encouraging short-term results when applied to brachyfacial skeletal Class II patients [ 10 ]. The results showed significant improvement in skeletal Class II growth, resulting from a significant mandibular plane angle increase and overbite decrease.…”

Section: Introductionmentioning

confidence: 99%

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Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

Austro-Martinez

Nicolás-Silvente

Ortega

et al. 2021

IJERPH

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One of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertical dimensions in brachyfacial patients. A test group of 30 patients (16 boys and 14 girls, mean 11.9 years old) with Class II malocclusion due to mandibular retrognathism and brachyfacial pattern treated with Austro Repositioner and fixed appliance were compared to a matched untreated Class II control group of 30 patients (17 boys and 13 girls, mean age 11.7 years old). Lateral cephalograms were taken at T1 (initial records), T2 (end of treatment), and T3 (one year after treatment). Statistical comparisons were performed with a paired-sample t-test and two-sample t-tests. Significant improvements in the skeletal Class II relationship were observed in the treated group. The ANB angle decreased (4.75°), the SNB angle increased (3.92°), and the total mandibular length (Co-Pg) increased (8.18 mm) (p < 0.001). Vertical dimensions were also significantly modified, the FMA angle increased (3.94°), LAFH-distance increased (3.15 mm), and overbite decreased (3.35 mm). These changes remained stable one year after treatment. The Austro Repositioner was adequate for treating the skeletal Class II malocclusion resulting from the mandible retrusion in brachyfacial patients.

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Section: Discussionsupporting

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

Austro-Martinez

Nicolás-Silvente

Ortega

et al. 2021

IJERPH

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Stability of class II correction with the Austro Repositioner associated with multi-brackets fixed appliances in dolichofacial patients

Austro-Martinez,

Nicolás-Silvente,

Requena

et al. 2024

BMC Oral Health

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Background The purposes of the present study were to evaluate the changes produced by the Austro Repositioner, and to assess the stability of Class II malocclusion treatment with the Austro Repositioner associated with fixed appliances and its capacity to control the vertical dimension in dolichofacial patients. Methods A group of patients with Class II malocclusion due to mandibular retrognathism and a dolichofacial growth pattern treated with the Austro Repositioner combined with fixed appliances were compared to a matched untreated control group of subjects with Class II malocclusion. Evaluations were made on the basis of lateral cephalograms taken at T1 (initial records), T2 (end of treatment), and T3 (1 year after treatment). Statistical comparisons were performed with paired- and two-sample t tests. Results The experimental (treated) group comprised 30 patients, 14 boys and 16 girls, and the control group comprised 30 subjects (15 boys and 15 girls) with similar ages at T1, T2 and T3. In the treated group, a significant decrease in the ANB angle was found (− 3.79 ± 1.46; p < 0.001). No significant differences were found in the maxillary skeletal measurements. In contrast, the SNB angle showed a significant increase of 3.77 ± 1.49 in the treated group compared with a nonsignificant increase of 0.77 ± 1.55 in the control group (p = 0.002). Vertical changes showed a significant decrease in the FMA angle (− 3.36 ± 1.62), while the lower anterior facial height distance and the overbite increased significantly in the treated group, reflecting a change in vertical dimensions after treatment. No significant changes were observed in either the treated or control group during the one-year posttreatment period; thus, the treatment results remained stable. Conclusions The Austro Repositioner combined with fixed appliances could be considered an optimal treatment modality in Class II dolichofacial patients.

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Short-term dentoskeletal changes following Class II treatment using a fixed functional appliance: the Austro Repositioner

Abstract: The Austro Repositioner was effective for short-term treatment of skeletal Class II malocclusion resulting from the retrusion of the mandible in both dolicho- and brachyfacial patients.

Cited by 2 publications

References 32 publications

Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

Stability of class II correction with the Austro Repositioner associated with multi-brackets fixed appliances in dolichofacial patients

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