A New Protocol for Maxillary Protraction in Cleft Patients: Repetitive Weekly Protocol of Alternate Rapid Maxillary Expansions and Constrictions

Liou, Eric Jein-Wein; Tsai, W.K.

doi:10.1597/03-107.1

Cited by 160 publications

(199 citation statements)

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“…Liou 18 introduced a method called alternate rapid maxillary expansion (Alt-RAMEC) protocol to increase the skeletal effects of maxillary protraction, and several clinicians [19][20][21] reported the increased skeletal effects of this method when performed prior to maxillary protraction. To our knowledge, none of the previous studies evaluated the effects of maxillary protraction with Alt-RAMEC protocol on pharyngeal airway dimensions and hyoid bone position.…”

Section: Introductionmentioning

confidence: 99%

Changes in pharyngeal airway dimensions and hyoid bone position after maxillary protraction with different alternate rapid maxillary expansion and construction protocols: A prospective clinical study

Çelikoğlu

Büyükçavuş

2016

The Angle Orthodontist

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Objective: To evaluate the changes in pharyngeal airway dimensions and the position of the hyoid bone after maxillary protraction with different alternate rapid maxillary expansion and construction (Alt-RAMEC) protocols in patients with skeletal class III malocclusion as a result of maxillary retrusion. Material and Methods: The patients with skeletal class III malocclusions were consecutively divided into two groups. Group 1 consisted of 17 patients (11 boys and 6 girls, mean age 11.31 6 1.71 years) who had the Alt-RAMEC protocol for 5 weeks, and group 2 consisted of 17 patients (10 boys and 7 girls, mean age 11.64 6 1.24 years) who had the Alt-RAMEC procedure for 9 weeks. In this study, 4 angular and 13 linear measurements were performed to evaluate the skeletal and pharyngeal airway changes that occurred after maxillary protraction. Results: A significant increase in the maxillary growth, inhabitation of mandibular growth, and clockwise rotation of the mandible caused the improvement of the maxillo-mandibular relationship in both groups. Those changes caused a significant increase in the upper pharyngeal airway dimension (P , .01) and affected the vertical position of the hyoid bone in both groups (P , .05 and P , .01, respectively). However, changes that occurred in both groups were found to be similar for all airway variables (P . .05). Conclusion: Upper pharyngeal dimension and vertical position of the hyoid bone were affected by the maxillary protraction with different Alt-RAMEC protocols. There were no statistically significant differences between the groups. (Angle Orthod. 2017;87:519-525)

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Section: Introductionmentioning

confidence: 99%

Changes in pharyngeal airway dimensions and hyoid bone position after maxillary protraction with different alternate rapid maxillary expansion and construction protocols: A prospective clinical study

Çelikoğlu

Büyükçavuş

2016

The Angle Orthodontist

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“…The longterm treatment prognosis of Angle's Class III malocclusions tends to be better if the malocclusion is caused by maxillary deficiency rather than by mandibular prognathism. 28 New treatment protocols are emerging for maxillary traction and research should be conducted alternating rapid expansion and constriction of the maxilla, where previous studies 14,15 reported an average protraction of 5.8 mm at point A. It was conducted a study 24 using anchorage implants in the search for a device capable of providing an extremely stable and secure anchorage in maxillary orthopedic treatments.…”

Section: Discussionmentioning

confidence: 99%

Orthopedic treatment of Class III malocclusion with rapid maxillary expansion combined with a face mask: a cephalometric assessment of craniofacial growth patterns

Tagawa

Loyo²,

Cunha³

et al. 2012

Dental Press J. Orthod.

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Objective: The aim of this prospective study was to assess potential changes in the cephalometric craniofacial growth pattern of 17 children presenting Angle Class III malocclusion treated with a Haas-type expander combined with a face mask. Methods:Lateral cephalometric radiographs were taken at beginning (T 1 ) and immediately after removal of the appliances (T 2 ), average of 11 months of treatment. Linear and angular measurements were used to evaluate the cranial base, dentoskeletal changes and facial growth pattern. Results:The length of the anterior cranial base experienced a reduction while the posterior cranial base assumed a more vertical position at T 1 . Some maxillary movement occurred, there was no rotation of the palatal plane, there was a slight clockwise rotation of the mandible, although not significant. The ANB angle increased, thereby improving the relationship between the jaws; dentoalveolar compensation was more evident in the lower incisors. Five out of 12 cases (29.41%) showed the following changes: In one case the pattern became more horizontal and in four cases more vertical. Conclusions:It was concluded after a short-term assessment that treatment with rapid maxillary expansion (RME) associated with a face mask was effective in the correction of Class III malocclusion despite the changes in facial growth pattern observed in a few cases.

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“…: Il n'y a aucune preuve convaincante que l'expansion palatine associée à la protraction maxillaire facilite le mouvement de la partie médiane de la face vers l'avant. Eric Jein-Wein Liou [38,83], de Taiwan, encourage l'ouverture et la fermeture de la suture palatine médiane 4 à 6 fois, pour desserrer les sutures médio-faciales. Pour moi, cette procédure semble assez drastique étant donné que l'action proposée affecte l'ensemble des os crâniens.…”

Section: Biomécanique Efficace Et Individualisée Paunclassified

Une orthodontie contemporaine fondée sur l'harmonie esthétique et sur la biomécanique. Un entretien avec Ravindra Nanda

Nanda

Amat

2017

Orthod Fr

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Le Pr Ravindra Nanda a obtenu une licence et une maîtrise en dentisterie et en orthodontie du King George's Medical College, Lucknow University. En 1967, il a intégré l'Université Catholique de Nimègue, aux Pays-Bas, où il a obtenu un doctorat en philosophie en 1969. Il a rejoint la nouvelle école dentaire de Loyola à Chicago en 1970, après avoir occupé le poste de Professeur assistant en orthodontie dans le service dirigé par Frans van der Linden. En 1972, il fut promu au Département d'Orthodontie de l'Université du Connecticut à Farmington, CT, et y reçu son certificat en orthodontie sous la direction de Charles Burstone. Professeur adjoint, puis professeur titulaire à partir de 1979, il a assumé le poste de Chef du Département d'Orthodontie à partir de 1992 et a été promu pour diriger le Département des Sciences Craniofaciales en 2004, dont les divisions de chirurgie orale et maxillo-faciale, de dentisterie pédiatrique, de l'enseignement supérieur en dentisterie générale et en orthodontie. Il est membre et ancien président de la composante Atlantique Nord de la Edward H. Angle Society of Orthodontists. Il occupe actuellement la fonction de rédacteur en chef de Progress in Orthodontics, de rédacteur associé du Journal of Clinical Orthodontics et est membre du comité éditorial de neuf revues d'orthodontie nationales et internationales. Il est membre de l'Association dentaire américaine, de l'Association dentaire de l'État du Connecticut, de la Hartford Dental Society, de l'Association américaine des orthodontistes, de la Société européenne d'orthodontie, de l'Association internationale de recherche dentaire et du College of Diplomates of American Board of Orthodontists. Il a rédigé et publié sept manuels et plus de 200 articles dans des revues à comité de lecture. Il a donné des conférences magistrales dans plus de 40 pays et a reçu de nombreux prix et honneurs pour ses contributions en dentisterie et en orthodontie, aux États-Unis et de la part d'organisations internationales d'orthodontie. Il est membre d'honneur des Jordan Orthodontic Society, Czech Orthodontic Society, Taiwanese Orthodontic Society, Central American Orthodontics Society et membre d'honneur à vie de l'Indian Orthodontic Society. Ravindra Nanda a été honoré du Life Time Achievement Award (University of Connecticut Foundation), et il est Senior Research Fellow (Japan Promotion for Science, Sendai, Japan − Tohoku University). Il a prononcé de nombreuses conférences d'honneur : la John Taylor Lecture, lors de la réunion annuelle de l'Australian Society of Orthodontics Foundation, la Sheldon Friel Memorial Lecture lors de la réunion annuelle de l'European Orthodontic Society, la Gordon Kirkness Memorial Lecture lors de la réunion annuelle de l'Australian Society of Orthodontics, la John Mershon Memorial Lecture, Boston, Massachusetts lors de la réunion annuelle de l'American Association of Orthodontics et la Wendell L. Wylie Memorial Lecture, à l'Université de San Francisco, Californie.

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A New Protocol for Maxillary Protraction in Cleft Patients: Repetitive Weekly Protocol of Alternate Rapid Maxillary Expansions and Constrictions

Abstract: Maxillary protraction using the 2-hinged expander, a repetitive weekly protocol of Alternate Rapid Maxillary Expansions and Constrictions, and intraoral protraction springs is most effective, with stable results at 2-year follow-up.

Cited by 160 publications

References 10 publications

Changes in pharyngeal airway dimensions and hyoid bone position after maxillary protraction with different alternate rapid maxillary expansion and construction protocols: A prospective clinical study

Changes in pharyngeal airway dimensions and hyoid bone position after maxillary protraction with different alternate rapid maxillary expansion and construction protocols: A prospective clinical study

Orthopedic treatment of Class III malocclusion with rapid maxillary expansion combined with a face mask: a cephalometric assessment of craniofacial growth patterns

Une orthodontie contemporaine fondée sur l'harmonie esthétique et sur la biomécanique. Un entretien avec Ravindra Nanda

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