1,880 results match your criteria Distraction Osteogenesis of the Mandible

Distraction Osteogenesis: Mandible and Maxilla.

Facial Plast Surg 2021 May 3. Epub 2021 May 3.

Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas.

Mandibular and maxillary deformities commonly require surgical intervention. Prior to distraction osteogenesis, traditional modalities involving single-staged translocation and rigid fixation were used to correct these craniofacial anomalies. Distraction osteogenesis has evolved as a compelling alternative for treating aesthetic and functional dentofacial defects. Read More

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Treacher Collins syndrome: Orthodontic treatment with mandibular distraction osteogenesis and orthognathic surgery.

Am J Orthod Dentofacial Orthop 2021 Apr 8. Epub 2021 Apr 8.

Department of Orthodontics, Mahidol University, Bangkok, Thailand. Electronic address:

Interdisciplinary treatment for patients with Treacher Collins syndrome is challenging because of the rarity of the condition and the wide variety of phenotypic expression. A 23-year-old male was diagnosed with Treacher Collins syndrome with a history of severe obstructive sleep apnea. He presented with a Pruzansky-Kaban classification grade I mandible, skeletal type II pattern with a hyperdivergent mandibular plane, severe convex profile, and Class II malocclusion with a missing mandibular incisor. Read More

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[Symphyseal distraction : clinical cases].

Jean-Luc Ouhioun

Orthod Fr 2021 Mar;92(1):37-65

4 Place Burignat, 69330 Meyzieu, France.

The discussion on whether to extract or not is still a source of debate. However, primacy must be given to the diagnosis based on a dental, skeletal, aesthetic and functional assessment. The therapeutic means are intended to achieve the goals resulting from this diagnosis which are the only way to individualize the treatment plan according to the patient. Read More

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Outcome analysis of biplanar mandibular distraction in adults.

Arch Craniofac Surg 2021 Feb 20;22(1):45-51. Epub 2021 Feb 20.

Department of Burns and Plastic Surgery, All India Institute of Medical Sciences Rishikesh, Rishikesh, India.

Background: Mandibular deficiency leading to facial asymmetry causes cosmetic deformity as well as psychological stigma for the patient. Correction of these mandibular asymmetries is a major challenge. The study investigates the efficacy of bidirectional mandible distraction for the treatment of mandibular deficiency. Read More

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February 2021

Surgical Planning for Cleft Lip and/or Palate-Induced Moderate-to-Severe Midfacial Hypoplasia.

J Craniofac Surg 2021 Mar-Apr 01;32(2):492-495

Cleft Lip and Palate Department.

Background: Distraction osteogenesis and conventional bimaxillary orthognathic surgery have been performed for the treatment of midfacial hypoplasia for a long time. However, the effect of these 2 techniques on the maxilla, mandible, and whole-facial profile is significantly different. In this study, we aimed to measure the pre- to post-treatment changes in maxillary prominence, mandible size, and facial length and compare them between these 2 techniques to inform selection of the best technique. Read More

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Distraction Osteogenesis Plus Permanent Rigid Fixation for Mandibular Deformities in Nongrowing Patients: A Comparative Study.

J Craniofac Surg 2021 Mar 4. Epub 2021 Mar 4.

Plastic and Reconstructive Surgery Department, Faculty of Medicine, Helwan University, Cairo, Egypt.

Abstract: Distraction osteogenesis (DO) is a commonly used intervention of mandibular deformities. However, relapse of the newly constructed mandible is a significant concern. The present comparative study aimed to investigate use of rigid fixation in addition to DO in management of mandibular deformities. Read More

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Simultaneous Reconstruction of Mandibular and Maxillary Defects Using the Single Free Fibular Osseocutaneous Flap: Case Series and Review of the Literature.

Ann Plast Surg 2021 04;86(4):428-433

Deparrtment of Maxillofacial Surgery, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, India.

Background: The facial profile requires adequate maxillary and mandibular projection. Although oral cancer tumor ablation might create ipsilateral maxillary and mandibular defect, fibular flap is popular in mandibular defect reconstruction. However, the maxillary defect results in sunken cheek or oral contracture. Read More

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A one-arm surgical trial of obstructive sleep apnea (OSA) patients before and 12 months after Bilateral Internal Ramus Distraction of the mandible (BIRD).

Sleep Med 2021 Apr 20;80:57-65. Epub 2021 Jan 20.

Oral and Maxillofacial Department, Pneumology Department, Neurophysiology Department, Instituto de Investigación Hospital Universitario de La Princesa (IISP), Universidad Autónoma de Madrid, Madrid, Spain.

Background: An innovative approach for the primary and definitive treatment of obstructive sleep apnea (OSA) in adult patients is presented: Bilateral Internal Ramus Distraction of the mandible (BIRD), which is a slow, progressive and more stable procedure to advance the mandibular bone. This study investigated whether this surgical approach is useful to cure OSA.

Methods: Study design was of an interventional (surgical) one-arm trial of OSA patients assessed before and 12 months after BIRD. Read More

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Development of a novel mandibular distraction osteogenesis simulator using Computer Aided Design and 3D printing.

Int J Pediatr Otorhinolaryngol 2021 Mar 4;142:110616. Epub 2021 Jan 4.

Department of Otolaryngology-Head and Neck Surgery, Pediatric Division, University of Michigan, 1540 E. Hospital Drive, Ann Arbor, MI, 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA. Electronic address:

Introduction: Micrognathia, a component of Robin Sequence, can cause glossoptosis, failure of palatal fusion, and critical obstruction of the airway. Mandibular distraction osteogenesis (MDO) is at times offered to anteriorly translate the mandible and tongue, relieving airway obstruction. MDO is an intricate reconstructive procedure that may be ideal for teaching using a high-fidelity educational simulator, allowing early hands-on experience in a zero-risk environment. Read More

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Pediatric Mandible Reconstruction: Controversies and Considerations.

Farooq Shahzad

Plast Reconstr Surg Glob Open 2020 Dec 17;8(12):e3285. Epub 2020 Dec 17.

Division of Plastic & Reconstructive Surgery, Memorial Sloan Kettering Cancer Center, New York, N.Y.

Mandibular reconstruction in pediatric patients has some unique considerations. The method of reconstruction has to factor in the growth potential of the neo-mandible, the native mandible, and the donor site. The condyle is considered the main growth center of the mandible. Read More

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December 2020

Accuracy of virtually planned mandibular distraction in a pediatric case series.

J Craniomaxillofac Surg 2021 Feb 31;49(2):154-165. Epub 2020 Dec 31.

Division of Maxillofacial Surgery, Department of Pediatric Surgery, HSJD, Spain.

The aim of this study was to describe the utility of 3D technology in mandibular distraction (MD) for patients with mandibular hypoplasia (MH), using 3D-printed cutting guides (CGs), and to assess the differences between virtual surgical planning (VSP) and the final result. A descriptive retrospective study of five patients diagnosed with MH, who required unilateral or bilateral MD, was carried out between January 2018 and January 2020. All patients underwent preoperative craniofacial CT scan and a 3D VSP was executed. Read More

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February 2021

[Dental complications of the mandibular distraction osteogenesis].

Stomatologiia (Mosk) 2020 ;99(6. Vyp. 2):24-28

Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.

The Aim Of The Study: Was to reveal the prevalence of dental abnormalities in children after mandibular distraction osteogenesis (MDO).

Materials And Methods: The study comprised 75 children aged 5-16 years (42 boys and 33 girls, mean age 9.8±4. Read More

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January 2021

Dynamic orthognathic surgical procedure (DOSP) in asymmetric maxillomandibular dysmorphism secondary to unilateral micrognathia: Outcomes of 12 consecutive cases.

J Craniomaxillofac Surg 2021 Feb 11;49(2):75-83. Epub 2020 Dec 11.

APHP, Necker-Enfants Malades Hospital, Department of Pediatric Maxillo-Facial and Plastic Surgery, 75015, Paris, France; Rare Disease Center Cleft and Facial Malformation, 75015, Paris, France.

This study aimed to evaluate the outcomes following a dynamic orthognathic surgical procedure performed at the end of growth to treat asymmetric maxillomandibular deformities linked to unilateral micrognathia when conventional orthognathic surgery was not feasible. The dynamic orthognathic surgical procedure (DOSP) combined concomitant mandibular distraction osteogenesis with contralateral poorly stabilized sagittal split osteotomy and Le Fort I osteotomy. Cephalometric studies were retrospectively conducted on pre- and postoperative lateral and frontal cephalographs, and maxillomandibular movements were calculated. Read More

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February 2021

Fully-customized distraction assembly for maxillofacial distraction osteogenesis: a novel device and its experimental accuracy verification.

Head Face Med 2020 Nov 26;16(1):31. Epub 2020 Nov 26.

Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Republic of Korea.

Background: A new distraction osteogenesis assembly system comprising a fully customized CAD/CAM-based fixation unit and ready-made distraction unit was developed. The aim of this study was to introduce our new distraction system and to evaluate its accuracy level in a sampled mandibular distraction osteogenesis.

Methods: Our system consists of a fully customized CAD/CAM-based fixation plate unit with two plates for each moving and anchoring part, and a ready-made distraction unit with attachment slots for fixation plates. Read More

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November 2020

Outcome of surgical-orthodontic treatment in hemifacial microsomia with and without early mandibular distraction osteogenesis.

Int J Oral Maxillofac Surg 2020 Nov 17. Epub 2020 Nov 17.

Graduate Institute of Dental and Craniofacial Science, Chang Gung University, Taoyuan, Taiwan; Craniofacial Research Centre, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan. Electronic address:

The aim of this study was to compare the outcomes of surgical-orthodontic treatment between hemifacial microsomia (HFM) patients who had and had not undergone early mandibular distraction osteogenesis (DO). Twenty adult unilateral HFM patients were included, seven who had undergone early mandibular DO (DO group) and 13 who had not (NDO group). All patients were type IIB, except for one type IIA patient in the NDO group. Read More

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November 2020

Quality of life after distraction osteogenesis in TMJ ankylosis patients.

Oral Surg Oral Med Oral Pathol Oral Radiol 2021 Mar 15;131(3):295-303. Epub 2020 Sep 15.

Junior Resident, Department of Oral & Maxillofacial Surgery, King George Medical University, Lucknow, India.

Objective: The aim of our study was to evaluate the success of distraction osteogenesis in temporomandibular joint (TMJ) ankylosis patients with facial deformities at our maxillofacial unit; assess the psychosocial and well-being outcomes of distraction osteogenesis and its impact on oral health; and discriminate the differences in quality of life (QoL) with application of external or internal devices, unilateral or bilateral, linear or multivector, and maxillomandibular or mandibular distraction.

Study Design: QoL and the Oral Health Impact Profile (OHIP) were prospectively studied in 42 consecutive patients with facial deformities, planned for maxillofacial distraction osteogenesis, using 2 validated questionnaires, the Orthognathic Quality of Life Questionnaire and OHIP-14. Patients who had undergone any previous surgeries were excluded. Read More

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Mandibular distraction osteogenesis for Pierre Robin sequence: The Sydney experience.

J Plast Reconstr Aesthet Surg 2021 04 1;74(4):890-930. Epub 2020 Nov 1.

Consultant Plastic Surgeon, The Children's Hospital at Westmead, Sydney, Australia. Electronic address:

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[Automatic superimpositions of 3-dimensional craniofacial imaging: illustration with a mandibular distraction osteogenesis case].

Orthod Fr 2020 06;91(1-2):129-137

Institut de la Face et du Sourire, 6 rue Puvis de Chavannes, 75017 Paris, France.

When performed several times over the course of an orthodontic or surgical orthodontic treatment, three-dimensional (3D) imaging like CBCT or CT-Scans can be superimposed. The purpose of this article is to illustrate the implementation of voxel-based 3D superimpositions with a clinical case of mandibular distraction osteogenesis A 13-year old patient underwent a surgical orthodontic treatment with a « 3D » mandibular distractor. He presented a bilateral atrophy of his mandibular condyles due to a staphylococcus aureus bacteremia at birth. Read More

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Discussion: Sleep Outcomes in Neonates with Pierre Robin Sequence Undergoing External Mandibular Distraction: A Longitudinal Analysis.

Plast Reconstr Surg 2020 11;146(5):1116-1117

From the Division of Plastic and Reconstructive Surgery, University of California, Los Angeles David Geffen School of Medicine.

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November 2020

Evaluation of Hyoid Position and Retroglossal Airway After Mandibular Alveolar Archwise Distraction Osteogenesis.

J Craniofac Surg 2020 Nov/Dec;31(8):2144-2147

Faculty of Dentistry, Department of Orthodontics, Okan University, Istanbul, Turkey.

The interaction between form and function in the craniofacial region is a well-accepted fact in orthodontics. The aim of the present study is to objectively evaluate if mandibular sagittal symphyseal distraction causes an increase in the retroglossal airway size and hyoid position in a retrospective clinical study. The pretreatment (T0) and 3 months post-distraction (T1) cone-beam computed tomography images of 12 patients (mean age 17. Read More

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Morphologic and Aerodynamic Changes of Upper Airway in Pediatric Hemifacial Microsomia Patients Undergoing Distraction Osteogenesis.

J Craniofac Surg 2020 Nov/Dec;31(8):2132-2135

Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University and Shandong Provincial Key Laboratory of Oral Tissue Regeneration and Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration.

Current studies on hemifacial microsomia (HFM) patients undergoing unilateral distraction osteogenesis (DO) mainly confined to description of facial morphology. This study was to investigate the effect of unilateral DO on upper airway in pediatric HFM patients using computational fluid dynamics. The investigators implemented the present retrospective study composed of 20 patients (age 9. Read More

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Infant mandibular distraction in absence of ascending ramus: case series.

Oral Maxillofac Surg 2020 Oct 31. Epub 2020 Oct 31.

Maxillo-Facial Surgery Division, Head and Neck Department, University Hospital of Parma, via Gramsci 14, 43100, Parma, Italy.

Background: Severe microretrognathia with the absence of ascending mandibular ramus is a challenging deformity and treatment must aim to avoid tracheostomy or remove it as soon as possible. Although it is not often reported, mandibular distraction osteogenesis represents a valid treatment option in infants affected by hypoplastic mandible Pruzansky-Kaban type IIb and III.

Case Presentation: The authors describe 3 cases of infants affected by severe respiratory insufficiency due to congenital mandibular hypoplasia, with follow up ranging from 4 to 8 years. Read More

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October 2020


A O Taiwo

Ann Ib Postgrad Med 2020 Jun;18(1):S9-S15

Department of Oral & Maxillofacial Surgery/Dental & Maxillofacial Surgery, Faculty of Dental Sciences, College of Health Sciences, Usmanu Danfodiyo University/Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria.

Hemifacial microsomia (HFM) is the 2 most common craniofacial birth defect after cleft lip and palate. It is said to arise from the 1 & 2 intrauterine branchial arches. HFM is believed by many experts to be congenital but not inherited as most patients afflicted have no previous family history. Read More

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Miniscrew-assisted single-tooth distraction osteogenesis to align an ankylosed infraoccluded maxillary central incisor: A case report.

J Orthod 2020 Dec 22;47(4):345-353. Epub 2020 Sep 22.

Department of Periodontics, Dental School, Islamic Azad University of Borujerd, Borujerd, Iran.

The ankylosis of permanent incisors is usually caused by trauma. In a growing patient, the ankylosed tooth fails to move along with the vertical growth of the remaining alveolar process, which results in an infraoccluded tooth, gingival margin disharmony and unaesthetic smile.This case report presents an 23-year-old female patient whose maxillary right central incisor (tooth number 11) had been traumatised eight years earlier. Read More

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December 2020

Unpredicted bilateral device breakage during active phase of mandibular distraction: A case report and literature review.

J Stomatol Oral Maxillofac Surg 2020 Sep 7. Epub 2020 Sep 7.

Department of Dentistry, All India Institute of Medical Sciences, Sijua, Bhubaneswar, Odisha, India. Electronic address:

Distraction osteogenesis is a popular treatment modality to lengthen the mandible. It is commonly performed in wide varieties of craniofacial syndromes, temporomandibular joint (TMJ) ankylosis, and obstructive sleep apnea cases requiring a significant amount of mandibular lengthening. There are many complications associated with mandibular distraction osteogenesis procedure and the breakage of the distractor is very rare. Read More

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September 2020

Sleep Outcomes in Neonates with Pierre Robin Sequence Undergoing External Mandibular Distraction: A Longitudinal Analysis.

Plast Reconstr Surg 2020 11;146(5):1103-1115

From the Division of Pulmonary and Sleep Medicine, Children's Mercy-Kansas City; and the Divisions of Human Genetics, Plastic Surgery, Biostatistics and Epidemiology, and Pulmonary and Sleep Medicine, Cincinnati Children's Hospital Medical Center.

Background: Robin sequence is a common cause of upper airway obstruction in newborns. Herein, we report sleep outcomes in neonates undergoing external mandibular distraction osteogenesis.

Methods: In this retrospective, 14-year, single-institution study of neonates with Robin sequence undergoing mandibular distraction osteogenesis, we compare respiratory parameters and sleep architecture before versus after surgery. Read More

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November 2020

Short-term condylar and glenoid fossa changes in infants with Pierre Robin sequence undergoing mandibular distraction osteogenesis.

Int J Oral Maxillofac Surg 2021 Feb 17;50(2):171-178. Epub 2020 Aug 17.

Division of Plastic and Craniofacial Surgery, Craniofacial Center, Seattle Children's Hospital, Seattle, Washington, USA.

The purpose was to evaluate short-term changes in condylar and glenoid fossa morphology in infants with Pierre Robin sequence (PRS) undergoing early (age <4 months) mandibular distraction osteogenesis (MDO) for the management of severe airway obstruction. Computed tomography data from infants with PRS who had MDO were compared to those of age-matched control infants without facial skeletal dysmorphology. Surface/volume, linear, and angular measurements of the condyle and glenoid fossa were obtained and compared between infants with PRS and controls. Read More

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February 2021

Is Intensive Care Unit Admission Necessary After Removal of Mandibular Distraction Devices in Infants With Robin Sequence?

Cleft Palate Craniofac J 2021 03 18;58(3):306-312. Epub 2020 Aug 18.

Harvard Medical School, Boston, MA, USA.

Objective: Intensive care unit (ICU) care is routinely required after the operation to initiate mandibular distraction osteogenesis (MDO) in infants with Robin sequence (RS). Many patients are also managed in the ICU after subsequent device removal. It is uncertain if ICU care, which is expensive and limited, is necessary after this second operation. Read More

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