Aesthetic and functional implications following rotation of the maxillomandibular complex in orthognathic surgery: a systematic review

Sonego, Camila Leal; Bobrowski, A; Chagas-Júnior, Otacílio Luiz; Torriani, Marcos Antônio

doi:10.1016/j.ijom.2013.07.738

Cited by 49 publications

(37 citation statements)

References 19 publications

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“…Die Verlängerung des Untergesichtes wird durch die Vorverlagerung des Unterkiefers und gleichzeitiger Auflösung des anterioren Tiefbisses erreicht. Dies wird in der Regel durch eine bimaxilläre Umstellungsosteotomie mit Rotation der Kiefer mit dem Uhrzeigersinn erzielt [5]. Die kieferorthopädische Vorbereitung gibt dabei die Art und das Ausmaß des chirurgischen Eingriffes vor.…”

Section: Introductionunclassified

Das prä- und postoperative Management von Patienten mit Angle-Klasse-II-Verzahnung, ausgeprägter Spee-Kurve und Tiefbiss in der Dysgnathiechirurgie

Seeberger

2019

Inf Orthod Kieferorthop

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ZusammenfassungDie Dysgnathiechirurgie umfasst Korrekturen des Gesichtsskeletts mit dem Ziel, normale anatomische und funktionelle Verhältnisse wiederherzustellen. Eine besondere Herausforderung sind dabei Patienten mit Angle-Klasse-II-Verzahnung, Tiefbiss und ausgeprägter Spee-Kurve. Eine präoperative Nivellierung der Spee-Kurve gelingt nur über Bisssperrung durch okklusale Aufbauten. Alternativ und bewährt ist die Nivellierung der Spee-Kurve postoperativ. Voraussetzung dafür ist eine stabile 3-Punkt-Abstützung und unmittelbar postoperativ das Einhängen vertikaler Gummizüge zum Schluss des anfangs seitlich offenen Bisses. Anhand eines Fallbeispiels wird das kieferorthopädische und kieferchirurgische Vorgehen verdeutlicht.

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Section: Introductionunclassified

Das prä- und postoperative Management von Patienten mit Angle-Klasse-II-Verzahnung, ausgeprägter Spee-Kurve und Tiefbiss in der Dysgnathiechirurgie

Seeberger

2019

Inf Orthod Kieferorthop

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“…According to Abramson et al, "an association between 3D upper airway anatomy and the presence and severity of OSA has been reported 22 . It is well known that MMA surgery decreases airway resistance and increases airway patency 2,4,8,11,16,[22][23][24][25][26][27][28][29][30][31][32][33][34] . However, the specific region of the airway that shows the most increase post maxillomandibular advancement surgery has yet to be distinguished.…”

Section: Purpose Of Studymentioning

confidence: 99%

“…There is clear evidence that MMA surgery improves airway patency in patients with sleep apnea 2,9,16,24,[26][27][28][29][30]32,51,53,65,66 . However, much of this research was conducted using a 2dimensional cephalograms.…”

Section: The Current Questionmentioning

confidence: 99%

Volumetric, planar and linear airway comparison after maxillomandibular advancement surgery

Vyas¹

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Background and Objectives: Treatment of sleep apnea can be accomplished using both non-surgical and surgical methods. Surgical treatment is further classified into phase I and II surgery. When phase I treatment fails, orthognathic surgery is judged to be the subsequent step in treating these patients. Orthognathic surgery is considered phase II treatment and can consist of a maxillomandibular advancement (MMA) 1-11. Until recently, most of the data gathered on patients how have had a maxillomandibular advancement has been completed using lateral cephalograms. The rationale for this study is to gain a better understanding of the alteration in linear, planar and volumetric posterior airway space following double-jaw advancement surgery with a counterclockwise rotation of the occlusal plane. Methods: A total of 28 subjects pre-and post-surgical CBCT scans were evaluated. All of the individuals underwent a maxillomandibular advancement with a counterclockwise rotation of the occlusal plane. All DICOM files were analyzed using Dolphin 3D Imaging 11.5, licensed to West Virginia University Department of Orthodontics. The CBCT volume was used to create right lateral cephalograms which were then used for linear cephalometric measurements. The 3D volume was also utilized to find cross-sectional measurements from axial slices taken from the cone-beam images at specific points: PNS, CV1, CV2 and CV3. Finally, CBCT images were used to find volume measurements at explicit regions along the posterior airway space. Data was analyzed using a matched-pair test. Results: When all subjects were grouped together the p-value for the change in all variables was <0.05. This indicates that there was a statistically significant change in all variables regardless of the method used to evaluate pre-and post-surgery changes. It also suggests that although CBCT is a valuable tool to evaluate airway change, cephalometric radiographs can be used to determine whether change in PAS is significant when it pertains to maxillomandibular advancement surgery. Conclusions: The maxillomandibular advancement procedure with or without genioplasty illustrated great increases in posterior airway space in both 2-dimensional and 3-dimensional analyses. However, more information was available in regards to site of airway obstruction when utilizing the 3D data in comparison to 2D. Patients with obstructive sleep apnea should be presented with the option of MMA surgery as a treatment option if CPAP is not tolerated or other therapies have failed. ACKOWLEDGEMENTS There are a number of people without whom this thesis might not have been written, and to whom I am greatly indebted. I would like to take this opportunity to thank not only the individuals who have contributed to my thesis, but also those who have assisted me throughout my specialty training. Dr. Peter Ngan, for being the chairman of my thesis committee, for your countless hours of dedication to this program, and for your endless commitment to me both personally and professionally. You have been a mento...

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“…Desde os primórdios os seres humanos têm buscado formas para melhorar sua aparência, mesmo que inicialmente isso fosse de uma forma bastante precária e rudimentar (O'RYAN e LASSETTER, 2011). Com o passar dos anos, o desenvolvimento de novas pesquisas proporcionou o surgimento de tecnologias e técnicas cirúrgicas, o que possibilitou a melhoria no atendimento dos pacientes, em termos tanto de função quanto de estética (SONEGO et al, 2014). Neste contexto, a cirurgia ortognática se tornou uma opção terapêutica importante no tratamento de pacientes portadores de deformidades dento-esqueléticas (SONEGO et al, 2014).…”

Section: Introductionunclassified

“…Com o passar dos anos, o desenvolvimento de novas pesquisas proporcionou o surgimento de tecnologias e técnicas cirúrgicas, o que possibilitou a melhoria no atendimento dos pacientes, em termos tanto de função quanto de estética (SONEGO et al, 2014). Neste contexto, a cirurgia ortognática se tornou uma opção terapêutica importante no tratamento de pacientes portadores de deformidades dento-esqueléticas (SONEGO et al, 2014).  Avaliar se tempo, sexo, idade e lado da face têm qualquer efeito mensurável no volume facial pós-operatório.…”

Section: Introductionunclassified

Avaliação retrospectiva do volume facial em pacientes submetidos a cirurgia ortognática utilizando a estereofotogrametria (foto 3D)

Osborne¹

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Aesthetic and functional implications following rotation of the maxillomandibular complex in orthognathic surgery: a systematic review

Cited by 49 publications

References 19 publications

Das prä- und postoperative Management von Patienten mit Angle-Klasse-II-Verzahnung, ausgeprägter Spee-Kurve und Tiefbiss in der Dysgnathiechirurgie

Das prä- und postoperative Management von Patienten mit Angle-Klasse-II-Verzahnung, ausgeprägter Spee-Kurve und Tiefbiss in der Dysgnathiechirurgie

Volumetric, planar and linear airway comparison after maxillomandibular advancement surgery

Avaliação retrospectiva do volume facial em pacientes submetidos a cirurgia ortognática utilizando a estereofotogrametria (foto 3D)

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