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Mandibular reconstruction

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https://www.readbyqxmd.com/read/28642193/unusual-x-ray-finding-after-mandibular-reconstruction
#1
Hugues Zrounba, Eugénie Lanthemann, Martin Broome
No abstract text is available yet for this article.
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28642188/costal-graft-as-a-support-for-bone-regeneration-after-mandibular-juvenile-ossifying-fibroma-resection-an-unusual-case-report
#2
F Fauvel, R Pace, F Grimaud, F Marion, P Corre, B Piot
Spontaneous regeneration of bone tissue after mandibular resection is rare in adults, although it does often take place in children. Periosteum conservation appears to play a major role in this healing process. We here report regarding a 5-year-old boy who exhibited a large mandibular trabecular juvenile ossifying fibroma. The lesion was treated by mandibulectomy, with careful preservation of the periosteal layer and immediate reconstruction with a costal graft by an intra-oral approach. Monitoring over the course of a year revealed spontaneous mandibular regeneration, and it allowed for a series of measurements of the graft to be made...
June 19, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28628354/soft-tissue-enhancement-and-implant-placement-following-partial-mandibulectomy-due-to-squamous-cell-carcinoma
#3
Fabio Bernardello, Giampietro Bertasi, Ralph Mackey Powers, Sergio Spinato, Andrea Viaggi, Jimmie Bullock, Pietro Felice
Many dental procedures allow for implant placement in partially or totally edentulous patients. Despite the availability of various implant and abutment types on the market, it often becomes quite challenging to achieve the biological and esthetic goals in a patient who has ridge deficiencies. Where problems will arise is from the lack of adequate bone quality and quantity.1,2 Soft tissue form and maintenance is also a consideration to evaluate.3 Primary reconstructive techniques following segmental mandibulectomy is evolving and improves quality of life...
June 19, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28627358/long-term-changes-in-bone-height-after-mandibular-reconstruction-using-a-free-fibula-graft-in-an-elderly-population
#4
Kosuke Ishikawa, Yuhei Yamamoto, Hiroshi Furukawa, Yoichi Ohiro, Akira Satoh, Toshihiko Hayashi
PURPOSE: This study evaluated short-term and long-term changes in bone height after mandibular reconstruction using an osteotomized fibula graft, with the aim of identifying factors associated with atrophy of the graft in an elderly population. PATIENTS AND METHODS: This retrospective study involved patients who underwent mandibular reconstruction using a free vascularized fibula graft from 2005 through 2015 and had at least 12 months of follow-up. Postoperative panoramic radiographs were used to measure bone height at standardized locations on each segment of the graft at 1 year postoperatively and at later follow-up...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28623681/soft-tissue-changes-measured-with-three-dimensional-software-provides-new-insights-for-surgical-predictions
#5
Yu-Jen Chang, Antônio C O Ruellas, Marilia S Yatabe, Philip M Westgate, Lucia H S Cevidanes, Sarandeep S Huja
PURPOSE: Although computer-aided craniofacial reconstructions allows for simulation of hard tissue changes, the prediction of the final soft tissue facial changes remains a challenge. The purpose of the present study was to evaluate the 3-dimensional (3D) soft tissue changes in patients undergoing 2-jaw orthognathic surgery. PATIENTS AND METHODS: For the present retrospective cohort study, 40 consecutive patients (11 men and 29 women; mean age 23.5 ± 4.9 years) who had undergone 2-jaw orthognathic surgery were selected...
May 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28621279/comparative-evaluation-of-stress-developed-on-rotary-retreatment-instruments-during-retrieval-of-gutta-percha
#6
Dhanasekaran Sihivahanan, T Vinay Kumar Reddy, Anchu Rachel Thomas, Natarajan Senthilnathan, Murali Sivakumar, Sushmita Shivanna
AIM: The aim of the study is to compare the maximum stress distribution on the rotary retreatment instruments within the root canal at cervical, middle, and the apical one-third during retreatment of gutta-percha. MATERIALS AND METHODS: A human mandibular premolar was scanned, and three-dimensional geometry of the root was reconstructed using finite element analysis (FEA) software package (ANSYS). The basic model was kept unchanged; tooth models were created using the same dimensions and divided into two groups as follows: Group I: ProTaper Universal retreatment system and group II: Mtwo rotary retreatment system...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28611327/overgrowth-of-costochondral-graft-in-temporomandibular-joint-ankylosis-reconstruction-a-retrospective-study
#7
S M Balaji, Preetha Balaji
BACKGROUND: Temporomandibular joint (TMJ) ankylosis is a situation in which the mandibular condyle is fused to the glenoid fossa by bone or fibrous tissue. The management of TMJ ankylosis has a complicated chore, and it is challenging for the maxillofacial surgeon because of technical hitches and high rate of reankylosis. Costochondral graft (CCG) is a common treatment modality for TMJ ankylosis. One of disadvantages of CCG is unpredictability of growth pattern and risk of overgrowth...
March 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28609498/treatment-of-a-mandibular-glandular-odontogenic-cyst-with-peripheral-ostectomy-bone-allograft-and-implant-reconstruction-a-case-report
#8
Christopher T Barth, John A Chamberlain, Jeffrey R Wessel
This article reports on a case of a glandular odontogenic cyst (GOC) in the posterior mandible of a 25-year-old male treated with peripheral ostectomy, bone allograft, and an implant-supported fixed dental prosthesis. During a routine 3-month postoperative visit, a radiograph suggested vertical bone loss on the implant in the location of the mandibular right first molar. The three-walled defect was surgically treated with debridement, bone allograft, and a membrane. Healing of this site has been uneventful...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28609493/vestibuloplasty-with-retroauricular-skin-grafts-for-dental-implant-rehabilitation-in-vascularized-fibula-grafts-two-case-reports
#9
Metin Sencimen, Aydin Gulses, Altan Varol, Mustafa Ayna, Jölide Ozen, Necdet Dogan, Yahya Açil
The aim of this study was to present the use of retroauricular full-thickness skin grafts in vestibuloplasty surgeries for dental implant rehabilitation in vascularized fibula grafts. Two patients underwent mandibular reconstruction with vascularized fibula grafts due to mandibular gunshot injuries. Inadequate sulcus gaps secondary to mandibular soft tissue deficiencies were managed by full-thickness autologous skin grafts harvested from the retroauricular region. Dental rehabilitation was achieved by implants placed in free fibula grafts...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28606440/mandible-reconstruction-with-free-fibula-flaps-outcome-of-a-cost-effective-individual-planning-concept-compared-with-virtual-surgical-planning
#10
Niklas Rommel, Marco Rainer Kesting, Nils Hagen Rohleder, Florian Martin Josef Bauer, Klaus-Dietrich Wolff, Jochen Weitz
PURPOSE: The free osteomyocutaneous fibular flap has become one of the primary options for mandibular reconstruction, because of the later introduction and development of virtual surgical planning (VSP). However, VSP is associated with high additional pre-operative effort and costs. Therefore, the purpose of the study was to develop a new individual cost-effective pre-operative planning concept for free fibula mandible reconstruction and to compare it with VSP regarding clinical parameters and post-operative outcome...
May 9, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28600917/application-of-combined-osteotomy-and-reconstruction-pre-bent-plate-position-corppp-technology-to-assist-in-the-precise-reconstruction-of-segmental-mandibular-defects
#11
Ye Liang, Canhua Jiang, Limeng Wu, Wenjin Wang, Yonggang Liu, Xinchun Jian
PURPOSE: To introduce and evaluate the clinical effects of digital surgical guide plate technology in the combined osteotomy and reconstruction pre-bent plate position (CORPPP) technique during mandibular segmental resections. MATERIALS AND METHODS: Seven cases of mandibular segmental resection with simultaneous vascularized free fibula flap reconstruction by oral and maxillofacial surgery were selected (Xiangya Hospital, Changsha, China; June 2015 through December 2015)...
May 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28587589/sexual-selection-and-the-evolution-of-male-pheromone-glands-in-philanthine-wasps-hymenoptera-crabronidae
#12
Katharina Weiss, Gudrun Herzner, Erhard Strohm
BACKGROUND: Sexual selection is thought to promote evolutionary changes and diversification. However, the impact of sexual selection in relation to other selective forces is difficult to evaluate. Male digger wasps of the tribe Philanthini (Hymenoptera, Philanthinae) scent mark territories to attract receptive females. Consequently, the organs for production and storage of the marking secretion, the mandibular gland (MG) and the postpharyngeal gland (PPG), are subject to sexual selection...
June 6, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28584532/histological-and-histomorphometric-evaluation-of-the-synthetic-biomaterial-natix-%C3%A2-in-horizontal-reconstruction-of-alveolar-ridge
#13
Javad Mehrani Sabet, Babak Amoian, Maryam Seyedmajidi
BACKGROUND: Following loss of teeth, atrophy of alveolar ridge of the jaws is a substantial problem and unintended outcome that compels clinicians to perform bone reconstruction ahead of implant placement. Although autogenous bone is recommended as the gold standard in bone reconstruction, aninvasive second surgery harvestinga limited volume of bone (from intraoral source) has led a significant approachingthe use of synthetic bone substitute materials. The aim of this study was to evaluate the histologic and histomorphometric properties of porous titanium granules (Natix(®)) used in horizontal reconstruction of alveolar ridge before implant placement...
March 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28582958/using-osseointegrated-implants-concomitant-with-onlay-bone-grafting-for-auricular-reconstruction
#14
Amin Rahpeyma, Saeedeh Khajehahmadi
Conventional dental implants have been reported for nasal and orbital regions but due to limited thickness of calvarium they are not used in mastoid region. Onlay bone grafting in skull concomitant with implants is a predictable method and experimental animal studies confirm it. Parietal bone and lateral mandibular ramus are suggested source of bone grafts and dental implants with 7 mm length can be used safely. Increased fixture length may lead to increase survival in long term.
June 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28579246/neocondylar-formation-after-resection-of-the-mandible-and-reconstruction-with-a-vascularised-iliac-crest-free-flap-rare-case
#15
S Bin, Z Bin, D Baoxia, W Yue, Z Wei
Tumours in the mandible often necessitate the removal of both mandibular and condylar bone. A free vascularised bone flap is a common choice for reconstruction, but it is rare for adults to form a new condyle after it. We describe a patient in whom a new condyle did form after reconstruction with a vascularised iliac crest free flap.
June 1, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28570410/nasal-soft-tissue-change-following-bimaxillary-orthognathic-surgery
#16
Hye-In Jeong, Ho-Sung Lee, Young-Soo Jung, Hyung-Sik Park, Hwi-Dong Jung
OBJECTIVE: The purpose of this study is to identify the correlation between maxillary movement and nasal soft tissue changes on three-dimensional reconstructed cone beam computed tomography (CBCT) images after Le Fort I osteotomy. MATERIALS AND METHODS: The authors also investigate the long-term change of alar base width (ABW) to determine the effect of cinch suture. The authors retrospectively studied 52 subjects (14 males and 38 females) who were treated by bimaxillary orthognathic surgery including Le Fort I osteotomy and mandibular ramus surgery...
May 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28558778/test-retest-reliability-of-mandibular-morphology-measurements-on-cone-beam-computed-tomography-synthesized-cephalograms-with-random-head-positioning-errors
#17
Hsien-Shu Lin, Yunn-Jy Chen, Hsuan-Lun Lu, Tung-Wu Lu, Chien-Chih Chen
BACKGROUND: Cephalometric radiography has been used for orthodontic and surgical treatment planning and assessment, and for quantifying mandibular growth. However, it remains unclear how head positioning errors and the level of examiner experience affect the reliability of such morphometric measurements. The current study aimed to bridge the gap by determining the intra-, inter-rater, and inter-session reliability of measurements of mandibular morphology with random head positioning errors as measured by a junior and a senior dentist...
May 30, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28552201/increasing-the-accuracy-of-mandibular-reconstruction-with-free-fibula-flaps-using-functionalized-selective-laser-melted-patient-specific-implants-a-retrospective-multicenter-analysis
#18
Majeed Rana, Shih-Jan Chin, Thomas Muecke, Marco Kesting, Alexander Groebe, Bjoern Riecke, Max Heiland, Nils-Claudius Gellrich
In this study, selective laser melted patient specific functional implants (PSFI) were utilised in combination with a fibula free flap, for mandible reconstruction. The shape and length of the PSFI, the shaping of fibula graft, its angulation and the length of the screws, were virtually planned before the surgery. Information, such as resection margin and screw lengths, were coded on the implant. 22 patients were reconstructed with PSFI and fibula transplantation. Data collected related to the size of the defect, pre- and postoperative intercondylar distance, ischemia time, time consumed to shape the fibula graft and complications...
April 19, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28551283/postoperative-nausea-and-vomiting-in-facial-fracture-patients-a-randomized-and-controlled-trial-on-the-effect-of-dexamethasone
#19
A Haapanen, H Thorén, J Törnwall, A L Suominen, J Snäll
This study aimed to establish the incidence of postoperative nausea and vomiting (PONV) in facial fracture patients. The specific aim was to investigate the effect of perioperative dexamethasone on PONV. A total of 119 adult patients with facial fractures were analysed in this prospective study. Patients were randomized to receive perioperatively either a total dose of 30mg of dexamethasone i.v. and i.m., or no glucocorticoid (control). PONV was evaluated every 6hours during the first postoperative 24hours and when pain medications were given...
May 24, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28544074/single-stage-aesthetic-and-functional-reconstruction-of-composite-facial-gunshot-wound-with-a-chimeric-functioning-muscle-and-fibular-osseous-flap-case-report-and-review-of-the-literature
#20
Andreas Gravvanis, Konstantinos Apostolou, Dimitrios Anterriotis, Dimosthenis Tsoutsos
The current concepts in the aesthetic and functional reconstruction of complex oromandibular defects are presented with a case of a patient with self-inflicted gunshot wound to the face. The patient presented with a 6 cm composite mandibular defect; the buccomandibular and suborbital aesthetic zones of the cheek along with the mucosa lining, and the ipsilateral facial musculature were missing. A rapid prototyping model of the facial skeleton was used to assist in preoperative planning. A single stage reconstruction with two free flaps was planned; a free fibula osseous flap to reconstruct the mandibular defect, and a free chimeric ALT/functioning vastus lateralis muscle...
May 23, 2017: Microsurgery
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