Emprego racional da Biomecânica em Ortodontia: "arcos inteligentes"

Almeida, Márcio Rodrigues de; Vieira, Giovanni Modesto; Guimarães, Carlos Henrique; Neto, Mustaphá Amad; Nanda, Ravindra

doi:10.1590/s1415-54192006000100016

Cited by 4 publications

(4 citation statements)

References 26 publications

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“…Therefore, fixed device techniques that do not depend on patient cooperation, such as extrusion arches, are increasingly being adopted. [11][12][13] The TMA extrusion arch is considered a one-couple force system that produces an extrusive force on the anterior teeth, allowing the AOB correction. Its activation depends on a V-shaped bend that is located 1-3 mm anterior to the molar tube, exerting an extrusive force of 40-60 g on the anterior teeth.…”

Section: Introductionmentioning

confidence: 99%

Dentoalveolar effects of skeletally anchored extrusion arch in anterior open bite patients: A prospective clinical trial

ELSHAL,

MOHAMMAD,

TAWFIK

et al. 2023

Dental Press J. Orthod.

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Objective: The purpose of this prospective clinical trial was to explore the dental and soft tissue changes accompanying the use of skeletally anchored nickel-titanium (NiTi) extrusion arch in the correction of anterior open bite (AOB). Material and Methods: Twenty female patients with a mean age of 16.5 ± 1.5 years and a mean dentoalveolar AOB of 2.38±0.7 mm participated in this study. All patients were treated with an maxillary 0.017×0.025-in NiTi extrusion arch, with the aid of miniscrews inserted between the maxillary second premolars and first molars bilaterally, to act as indirect anchorage. Three-dimensional digital models and lateral cephalometric radiographs were taken just before the insertion of the extrusion arch (T0) and after 10 months (T1). Paired-sample t-tests were used in analyzing the data, to evaluate the changes after treatment (T1-T0). A significance level of p < 0.05 was used. Results: AOB was successfully closed in all patients, with a 4.35 ± 0.61 mm increase in the overbite. Maxillary incisors significantly extruded (2.52 ± 1.02 mm) and significantly reclined (5.78 ± 0.77°), with a resultant decrease in the overjet of 1.58 ± 0.5mm. A significant intrusion of maxillary first molars with no change in their inclination was observed. The upper lip showed a significant retraction tendency to the E-plane, and a significant increase in the nasolabial angle was observed. Conclusion: The skeletally anchored NiTi extrusion arch was an effective technique in treating AOB, with no adverse effects on the molars.

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Section: Introductionmentioning

confidence: 99%

Dentoalveolar effects of skeletally anchored extrusion arch in anterior open bite patients: A prospective clinical trial

ELSHAL,

MOHAMMAD,

TAWFIK

et al. 2023

Dental Press J. Orthod.

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“…A face influencia e molda características, personalidades e comportamentos dos indivíduos (ALMEIDA, M.R. et al, 2006;BURSTONE, 1967).…”

Section: Revisão De Literaturaunclassified

“…O tratamento de escolha, segundo Almeida, M.R. et al (2006), nos pacientes dolicofaciais, é a intrusão dos dentes posteriores ou o controle vertical de modo que os dentes posteriores não extruam, piorando o padrão vertical e aumentado a mordida aberta anterior.…”

Section: Tratamento Ortodôntico Nos Dolicofaciaisunclassified

“…Em alguns raros pacientes dolicofaciais, faz-se presente uma sobremordida profunda, apesar do padrão esquelético vertical. Nestes pacientes, a reversão da curva de Spee inferior e acentuação da curva superior, especialmente fora da fase de crescimento, com vistas à correção da mordida profunda, poderá acarretar a extrusão dos dentes posteriores superiores, com a conseqüente rotação horária mandibular (HOUSTON, 1988;LEVIN, 1991;NANDA, R., 2005), e abertura da mordida anterior (ALMEIDA, M.R. et al, 2006).…”

Section: Tratamento Ortodôntico Nos Dolicofaciaisunclassified

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Estudo cefalométrico dos efeitos do tratamento ortodôntico sem e com extrações nas estruturas dentoesqueléticas e tegumentares em dolicofaciais

Porto¹

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Aos meus pais, Marlene e João Ramiro, pelo amor e carinho que sempre recebi, pelo apoio tão importante para a realização dos meus sonhos. Tudo que sou e tudo que conquistei, eu devo a vocês; meus maiores mestres; Aos meus irmãos, Sabrina e Douglas, pela amizade sincera, amor e incentivo sempre presentes; Ao meu amor Ynaser, que me ensinou que para o amor não existe distância e nem fronteiras.

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A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

et al. 2020

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Aim To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients. Materials and methods Fourteen subjects with an initial mean age of 9.17 ± 1.03 years presenting with dentoalveolar AOB (mean − 1.28 ± 1.46 mm) and normal facial pattern (FMA = 25.76°) were treated with an extrusion arch. The mean treatment period was 7.79 ± 2.58 months. Lateral cephalograms and dental models were taken before (T0) and after the correction of AOB (T1). Data were analyzed using paired t test to evaluate differences between T0 and T1. For all tests, a significance level of P < .05 was used. Results All patients achieved positive overbite at T1, with a mean increase of 3.07 mm. The maxillary incisors extruded 1.94 mm. Retroclination of the maxillary incisors (− 6.15°) and an increase in the interincisal angle (5.57°) were observed. There was a significant decrease in the distance between the incisal edge of the maxillary incisors and the molars (− 2.21 mm). There was significant mesial tipping of the maxillary molar (− 11.49°). Significant reductions of overjet (− 1.65 mm), arch perimeter (− 3.02 mm), and arch length (− 2.23 mm) were noted. The transverse maxillary intermolar distance did not change significantly. Conclusions The use of a maxillary extrusion arch was effective in the treatment of AOB. Overbite increased due to incisor extrusion, as well as retroinclination and overjet reduction. However, side effects, such as mesial molar tipping and decreases in arch perimeter and length might occur.

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Emprego racional da Biomecânica em Ortodontia: "arcos inteligentes"

Cited by 4 publications

References 26 publications

Dentoalveolar effects of skeletally anchored extrusion arch in anterior open bite patients: A prospective clinical trial

Dentoalveolar effects of skeletally anchored extrusion arch in anterior open bite patients: A prospective clinical trial

Estudo cefalométrico dos efeitos do tratamento ortodôntico sem e com extrações nas estruturas dentoesqueléticas e tegumentares em dolicofaciais

A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

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