A Cephalometric Comparison of Twin Block and Bionator Appliances in Treatment of Class II Malocclusion

Ahmadian-Babaki, F; Araghbidi-Kashani, SM; Mokhtari, Saeedeh

doi:10.4317/jced.53031

Cited by 12 publications

(16 citation statements)

References 18 publications

(26 reference statements)

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“…However, control of maxillary growth, enhancement of mandibular growth, and modification of dentoalveolar systems are the expected results following functional appliance therapies. Many investigations revealed that the most significant effects of functional therapies are the dentoalveolar modifications (8) since these appliances are supported by teeth rather than the maxillary and mandibular bone. Placement of functional appliances causes displacement of condyle in the glenoid fossa, and stimulates growth of mandibular growth sites meaning condylar cartilage, condylar neck area and ramus (9).…”

Section: Introductionmentioning

confidence: 99%

“…The results of the recent studies comparing bionator and Twin Block have shown comparable results between the two appliances regarding dentoalveolar and mandibular position; though Twin Block was more efficient in retarding the maxillary forward growth (8). Other studies have also showed a significant increase in the mandibular length using Twin Block (12).…”

Section: Introductionmentioning

confidence: 99%

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Dentoskeletal effects of class II malocclusion treatment with the modified Twin Block appliance

et al. 2019

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BackgroundThe purpose of this study was to prospectively assess the dentoskeletal effect of a modified Twin Block appliance for treatment of class II malocclusions.Material and MethodsLateral cephalograms of 25 Class II malocclusion patients were compared to evaluate skeletal, dentoalveolar and soft tissue changes pre- and post-treatment with a modified Twin Block appliance. A total of 33 angular and linear variables were used for analysis. The differences were calculated at the start and end of treatment. The paired T test was performed to compare the cephalometric measurements before and after treatment.ResultsCompared the pre- and post- treatment measurements, there was a significant increase in SNB (P<0.001), CO-Gn (P<0.001), ANS-Me (P=0.001), Mandibular base (P<0.001), Lower 1 to NB (°) (P=0.004), Lower 1 to NB (mm) (P<0.001), and Z-angle (P=0.001) following functional therapy with modified Twin Block appliance. On the other hand, a significant decrease was observed in ANB (P<0.001), NA-Pog (P<0.001), overjet (P<0.001), and overbite (P=0.007), Upper 1 to palatal plane (P=0.007), UL-E-line (P<0.001), LL-E-line (P=0.001), and H-angle (P=0.002) after treatment with modified Twin Block appliance.ConclusionsThe modified Twin-Block improves facial esthetics in Class II malocclusion by a combination of changes in skeletal as well as dentoalveolar structures. The increase of mandibular unit length was observed to be due to a true mandibular growth not just a repositioning of the mandible. The modified appliance, however, did not show any superior effects in terms of less dental compensation compared to the conventional Twin–Block appliance. Key words:Dentoskeletal effect, Modified Twin Block, Class II malocclusion.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dentoskeletal effects of class II malocclusion treatment with the modified Twin Block appliance

et al. 2019

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“…Twin-blok ve Bionator apareyleri ile tedavi edilen mandibular yetersizlik kaynaklı Sınıf II Bölüm 1 maloklüzyona sahip 33 hastanın tedavi başı ve sonu sefalometrik radyografilerini değerlendirdikleri araştırmala-rında; ANB, NA-Pog, bazal ve gonial açılar haricinde her iki apareyin de sefalometrik değerlerinde önemli bir farklılık görülmediğini belirtmişlerdir. 19 ANB açısındaki (Twin-blok: 1,65 0 , Bionator: 1,25) 0 ve NA-Pog değerindeki (Twin-blok: 3,31, Bionator: 2,63) değişimin ise Twin-blok apareyinde daha anlamlı olduğunu ve profil konveksitesinde anlamlı bir düzelme gözlendiğini bildirmişlerdir.…”

Section: İskeletsel Ve Dental Etki̇leri̇unclassified

Evaluation the Treatment Effects of Functional Appliances Used in Class II Malocclusions

Kaya¹,

Tunca²

2020

Turkiye Klinikleri J Dental Sci

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ürk toplumundaki görülme oranının %24 olduğu belirtilen Sınıf II maloklüzyonların mandibular yetersizlik, maksiller fazlalık ve glenoid fossanın posteriorda konumlanması sonucu oluşabildiği belirtilmektedir. 1,2 Tedavi planlamasının ise hasta yaşı, kalan büyüme miktarı, maloklüzyonun şiddeti ve yumuşak doku profiline bağlı olarak değişebil-diği ifade edilmektedir. [3][4][5] Büyüme ve gelişim dönemine göre Sınıf II maloklüzyona sahip çocuk ve gençlerde büyüme modifikasyonu uygulanırken; genç erişkinlerde dentoalveoler hareketlerden oluşan kamuflaj tedavisi; eriş-kinlerde ise ortognatik cerrahi uygulanmaktadır. 3 Literatürde önceki yıllarda yapılan araştırmalarda, Sınıf II maloklüz-yonların maksiller fazlalıktan kaynaklandığı belirtilmekteydi. 6 A An na ah ht ta ar r K Ke el li im me el le er r: : Sınıf II maloklüzyonlar; büyüme modifikasyonu; fonksiyonel apareyler A AB BS ST TR RA AC CT T Treatment planning of Class II malocclusions that are frequently encountered in orthodontic practice, can vary depending on severity of malocclusion, soft tissue profile, and amount of residual growth. In growing and developing subjects functional appliances are used to obtain the desired treatment results in skeletal, dental, and sof tissues by growth modification. It has been stated that the treatment effects of functional appliances that are differently designed and named may vary. The aim of this review was to investigate the studies of functional appliances on skeletal, dental, soft tissue, temporamandibular joint and airway effects with treatment time, made between 2012 and 2017.K Ke ey yw wo or rd ds s: : Class II malocclusions; growth modification; functional appliances A Ar rt ti ic cl le e i in n P Pr re es ss s

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“…As maloclusões dentárias são anormalidades de crescimento e desenvolvimento, que acometem desde a distribuição dos dentes na maxila e mandíbula, até os ossos e músculos da face [1]. Estas são originadas de fatores genéticos e ambientais [2], sendo consideradas problemas de saúde pública mundial e a terceira prioridade no cuidado bucal.…”

Section: Introductionunclassified

O Impacto Da Maloclusão No Sistema Estomatognático

Gonalves¹,

Palinkas²,

Righetti³

et al. 2018

Anais Do v Congresso Brasileiro De Eletromiografia E Cinesiologia E X Simpósio De Engenharia Biomédica

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Resumo: O conhecimento da morfologia facial, dos músculos mastigatórios e atividades musculares são de extrema importância para o entendimento do complexo sistema estomatognático. O desenvolvimento normal deste sistema tem um papel fundamental na qualidade de vida e bem estar de um indivíduo e quando ocorrem alterações que comprometam este complexo sistema, pode acarretar problemas fisiológicos e comportamentais sérios, afetando a qualidade de vida. Assim, esta pesquisa sobre maloclusão em crianças, avaliou a atividade eletromiográfica e o desempenho mastigatório de 64 crianças saudáveis na faixa etária entre 05 e 10 anos de idade, observando a necessidade de tratamento ortodôntico. A classificação da maloclusão foi realizada por meio do Índice de Necessidade de Tratamento Ortodôntico (IOTN). As atividades EMG dos músculos masseter direito (MD), masseter esquerdo (ME), temporal direito (TD), temporal esquerdo (TE), músculo orbicular da boca, segmento superior direito (OSD) e esquerdo (OSE) e músculo supra-hioideo (SH) na condição de repouso, lateralidade direita e esquerda, protrusão, contração voluntária máxima com e sem Parafilm M®, deglutição de água, deglutição de saliva, mastigação habitual e não habitual, foram realizadas pelo eletromiógrafo TrignoTM Wireless Delsys. As crianças foram distribuídas pelo tipo de maloclusão (IOTN): G1: grau 1 (n=26; média de idade 8,00±0,44), G2: grau 2 (n=28; média de idade 8,89±0,44) e G3: grau 3 (n=10; média de idade 8,00±0,59). Os dados obtidos foram tabulados e submetidos à análise estatística (SPSS 22,0, ANOVA, p≤0,05 [7,8] e foi o eleito para a classificação das maloclusões nesta pesquisa. O objetivo deste trabalho foi avaliar a atividade eletromiográfica e a eficiência dos ciclos mastigatórios em habitual e não habitual por meio do sinal eletromiográfico dos músculos masseter, temporal, orbicular e suprahioideo (direito e esquerdo) de crianças saudáveis com maloclusão. of malocclusion was held through the index of Orthodontic treatment Need (IOTN). EMG activities of masseter muscles right (MD), masseter left (ME), temporal right (TD), temporal left (TE), orbicular muscle of mouth, right upper segment (OSD) and left (OSE) and muscle supra-hioideo (SH) on condition of

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A Cephalometric Comparison of Twin Block and Bionator Appliances in Treatment of Class II Malocclusion

Cited by 12 publications

References 18 publications

Dentoskeletal effects of class II malocclusion treatment with the modified Twin Block appliance

Dentoskeletal effects of class II malocclusion treatment with the modified Twin Block appliance

Evaluation the Treatment Effects of Functional Appliances Used in Class II Malocclusions

O Impacto Da Maloclusão No Sistema Estomatognático

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