Comparison of twin block appliance and Forsus Fatigue Resistant Device therapies on uvulo-glossopharyngeal dimensions: A retrospective study

Yavan, Mehmet Ali; Aycan, Merve; Aksoyler, Dicle; Essiz, Aysegul

doi:10.25259/apos_173_2020

Cited by 2 publications

(1 citation statement)

References 27 publications

(56 reference statements)

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“…The decrease in the ANB angle was due to the increase in the SNB angle in the TB group and due to the increase in the SNB angle and the significant decrease in the SNA angle in the CHG-TB group. These findings are consistent with those of the TB 22 , 26 , 27 and functional appliance-headgear 12 , 13 studies in the literature.…”

Section: Discussionsupporting

confidence: 92%

Conventional Twin-Block Versus Cervical Headgear and Twin-Block Combination: Therapeutic Effects on the Craniofacial Structures in Growing Subjects

Gülsoy¹,

Yavan²

2023

TurkJOrthod

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Objective: To compare the short-term effects of the conventional twin-block (TB) appliance and the cervical headgear TB (CHG-TB) appliance on craniofacial structures. Methods: The retrospective controlled study examined lateral cephalograms taken from 46 growing subjects. Individuals were divided into two groups according to the treatment. Group I consisted of 15 individuals (9 girls, 6 boys, mean age: 12.34±1.23 years) treated with the TB appliance and Group II consisted of 16 individuals (9 girls, 7 boys) treated with the CHG-TB appliance (mean age: 12.50±1.30 years). To distinguish the treatment effects of these appliances on growth, a control group of 15 untreated individuals (9 girls, 6 boys, mean age: 11.82±1.16 years) was included from the archives. Results: Significant improvements were found in the interdental and maxillo-mandibular measurements in the treatment groups (p<0.001). Significant differences were observed in the SNA, SN/PP, and SN/GoGn values in the CHG-TB group compared to other groups (p<0.05). The mandible showed a significant downward movement in both treatment groups compared with the control group (p<0.001), while the change in SNB angle was statistically significant only in the TB group compared to the control group (p<0.05). Lower incisors showed significant proclination only in the TB group (p<0.05). Conclusion: The CHG-TB appliance was found to be more effective in limiting maxillary growth and preventing lower incisor proclination compared with the TB appliance, whereas the TB appliance was more effective in anterior mandibular movement.

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Section: Discussionsupporting

confidence: 92%

Conventional Twin-Block Versus Cervical Headgear and Twin-Block Combination: Therapeutic Effects on the Craniofacial Structures in Growing Subjects

Gülsoy¹,

Yavan²

2023

TurkJOrthod

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The effect of different functional appliances on the sagittal pharyngeal airway dimension in skeletal class II: a retrospective study

Elfouly,

Dumu,

Madian

et al. 2024

Sci Rep

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The aim of this study was to compare the changes in the sagittal pharyngeal airway dimension (SPAD) in adolescents with Class II mandibular retrusion treated with Invisalign Mandibular Advancement (IMA), prefabricated Myobrace (MB), and Twin block (TB). For this retrospective study, the pre-treatment and post-treatment lateral cephalograms of 60 patients who underwent myofunctional treatment, using either one of the tested appliances were gathered from the files of treated patients. Changes in the SPAD were measured in each group, and comparisons were carried out between the three study groups. Additionally, sagittal skeletal measurements were carried out. Comparisons of the study variables at T0 and T1 between the three groups were performed using one-way ANOVA, while comparisons of the difference (T1–T0) were performed using Kruskal Wallis test. A significant SPAD increase has been reported using the three tested appliances (p < 0.05), with the least change documented with MB use (p < 0.05). Significant antero-posterior improvements have been found with IMA, MB, and TB with an increase in the SNB°, and a decrease in ANB° and Wits appraisal (p < 0.05). Non-significant FMA° changes have been observed post-treatment in the three test groups (p > 0.05). The IMA, MB, and TB generated significant SPAD and sagittal changes, with both IMA and TB surpassing MB in the airway area improvement post-treatment. Moreover, the three tested Class II functional appliances did not affect the vertical dimension.

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Comparison of twin block appliance and Forsus Fatigue Resistant Device therapies on uvulo-glossopharyngeal dimensions: A retrospective study

Cited by 2 publications

References 27 publications

Conventional Twin-Block Versus Cervical Headgear and Twin-Block Combination: Therapeutic Effects on the Craniofacial Structures in Growing Subjects

Conventional Twin-Block Versus Cervical Headgear and Twin-Block Combination: Therapeutic Effects on the Craniofacial Structures in Growing Subjects

The effect of different functional appliances on the sagittal pharyngeal airway dimension in skeletal class II: a retrospective study

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