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https://www.readbyqxmd.com/read/28820838/five-year-follow-up-of-midface-distraction-in-growing-children-with-syndromic-craniosynostosis
#1
Parit A Patel, Pradip Shetye, Stephen M Warren, Barry H Grayson, Joseph G McCarthy
BACKGROUND: Maxillary position in patients with syndromic craniosynostosis after midface distraction has been shown to be stable 1 year postoperatively. The purpose of this study is to assess midfacial position in the growing child with craniosynostosis 5 years after Le Fort III advancement with a rigid external device (RED). METHODS: Seventeen consecutive patients were identified to have the diagnosis of syndromic craniosynostosis and who underwent midface advancement...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820323/non-surgical-model-for-alveolar-bone-regeneration-by-bone-morphogenetic-protein-2-7-gene-therapy
#2
Mariko Kawai, Yo-Hei Kataoka, Junya Sonobe, Hiromitsu Yamamoto, Masakazu Inubushi, Takuya Ishimoto, Takayoshi Nakano, Hiroki Maruyama, Jun-Ichi Miyazaki, Toshio Yamamoto, Kazuhisa Bessho, Kiyoshi Ohura
BACKGROUND: Alveolar bone is a critical tissue for tooth retention; however, once alveolar bone is lost, it may not spontaneously regenerate. Currently, bone grafts or artificial bone are commonly used for alveolar bone regeneration therapy. However, these therapies require surgical procedures, which present risks, particularly in aged patients. Therefore, the development of alveolar bone regeneration techniques that do not require surgical procedures is critical. It is well known that stem cells present in the periosteal and periodontal ligament may be induced to differentiate into osteogenic cells...
August 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28817741/reconstruction-of-a-severely-atrophied-alveolar-ridge-by-computer-aided-gingival-simulation-and-3d-printed-surgical-guide-a-case-report
#3
In-Seok Song, Mi-Ran Lee, Jae-Jun Ryu, Ui-Lyong Lee
Dental implants positioned in severely atrophied anterior maxillae require esthetic or functional compromises. This case report describes the rehabilitation of a severely atrophied alveolar ridge with a three-dimensional (3D) computer-aided design/computer-aided manufacture (CAD/CAM) surgical guide. A 50-year-old woman had a severely atrophied anterior maxilla with unfavorably positioned dental implants. Functional and esthetic prosthodontic restoration was difficult to achieve. An anterior segmental osteotomy was planned to reposition the dental implants...
August 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28817142/morphologic-patterns-of-the-atrophic-posterior-maxilla-and-clinical-implications-for-bone-regenerative-therapy
#4
Alberto Monje, Istvan A Urban, Richard J Miron, Jordi Caballe-Serrano, Daniel Buser, Hom-Lay Wang
Regenerative therapies are commonly needed prior to implant placement in the posterior maxilla following tooth extraction. The aim of this study was to investigate the anatomical features of the atrophic posterior maxilla that might affect surgical approach selection and technique and risk of intra- and postoperative complications. Cone beam computed tomography files were screened to identify pristine atrophic maxillary ridges in need of bone augmentation (ridge height < 10 mm). Ridge height and width and lateral wall thickness (LWT) were measured at different levels, and palatonasal recess and lateral wall morphology were calculated...
September 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28816289/-evaluation-of-cone-beam-computed-tomography-on-upper-airway-changes-after-alternating-rapid-palatal-expansion-and-constriction
#5
D T Chang, Y H Zhou, W T Liu
OBJECTIVE: To evaluate the changes of different parts of upper airway after alternating rapid palatal expansion and constriction via three dimensional measurement, compared with the protocol of rapid palatal expansion alone. METHODS: In the study, 36 patients with retrognathic maxilla were selected and randomized to either group A or group B. The patients in group A were treated with rapid palatal expansion alone. The patients in group B were treated with alternating rapid palatal expansion and constriction...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816191/histologic-variants-of-calcifying-odontogenic-cyst-a-study-of-52-cases
#6
Soussan Irani, Forough Foroughi
AIM: This study aimed at evaluating histological features of 52 cases of calcifying odontogenic cyst (COC), which is an uncommon benign odontogenic lesion. The World Health Organization (WHO) classified COC as a neoplasm and used the term calcifying cystic odontogenic tumor (CCOT) for benign cystic type and the dentinogenic ghost cell tumor (DGCT) for the benign solid-type lesions. There is no agreement regarding COC classification. MATERIALS AND METHODS: A total of 52 cases of COC were selected and reviewed from the archive of the Pathology Department of Taleghani Educational Hospital, Tehran, Iran...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28815251/-morphometric-analysis-of-maxillofacial-bone-in-48-patients-with-ectodermal-dysplasia
#7
Hao-Wei Wang, Feng Wang, Wei Huang, Wen-Jie Zhou, Yue-Ping Wang, Yi-Qun Wu
PURPOSE: The study was performed to analyze the maxillofacial morphology of 48 patients with ectodermal dysplasia (ED) and to provide some reference for implant treatment of ED patients. METHODS: The study collected the clinical data and lateral cephalometric radiographs of 48 patients with ED treated between June 2013 and October 2016. The patients were grouped as follows: group 1, 23 patients, at least with two kinds of ectodermal disorder, besides hypodontia; group 2, 25 patients, only with one kind of ectodermal disorder, besides hypodontia...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28814937/compound-odontoma-in-anterior-mandible-a-case-report
#8
Eswara Uma
Odontomas are the most common odontogenic hamartomas worldwide. Depending on the level of organisation of the tissues inside, these can be differentiated into compound type or complex type. As these are asymptomatic and do not cause any changes in the bone, they are often diagnosed during the routine dental examination. Complex odontomas are commonly found to occur in posterior mandible while compound odontomas are found in the anterior maxilla. A nine-year-old female child reported for a routine dental check-up, when a missing left permanent mandibular lateral incisor [32] was noticed...
May 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28809378/reduction-rate-by-decompression-as-a-treatment-of-odontogenic-cysts
#9
L Oliveros-Lopez, A Fernandez-Olavarria, D Torres-Lagares, M-A Serrera-Figallo, R Castillo-Oyagüe, J-J Segura-Egea, J-L Gutierrez-Perez
BACKGROUND: Odontogenic cysts are defined as those cysts that arise from odontogenic epithelium and occur in the tooth-bearing regions of the jaws. Cystectomy, marsupialization or decompression of odontogenic cyst are treatment approach to this pathology. The aim of this study was to evaluate the effectiveness of the decompression as the primary treatment of the cystic lesions of the jaws and them reduction rates involving different factors. MATERIAL AND METHODS: 23 patients with odontogenic cysts of the jaws, previously diagnosed by anatomical histopathology (follicular cysts (7) and radicular cysts (16)) underwent decompression as an initial treatment...
August 15, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28809375/clinical-parameters-of-implants-placed-in-healed-sites-using-flapped-and-flapless-techniques-a-systematic-review
#10
O Llamas-Monteagudo, P Girbés-Ballester, J Viña-Almunia, D Peñarrocha-Oltra, M Peñarrocha-Diago
BACKGROUND: Dental implant placement using flapless surgery is a minimally invasive technique that improves blood supply compared with flapped surgery. However, the flapless technique does not provide access to allow bone regeneration. OBJECTIVE: The aim of this systematic review was to evaluate the clinical parameters following implant surgery in healed sites, using two procedures: flapped vs. flapless surgery. MATERIALS AND METHODS: A detailed electronic search was carried out in the PubMed/Medline, Embase and Cochrane Library databases...
August 15, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28808701/osteosarcoma-of-the-mandible-a-case-report-with-ct-mri-and-scintigraphy
#11
Mikiko Sue, Takaaki Oda, Yoshihiko Sasaki, Ayako Kameta, Yasuo Okada, Ichiro Ogura
Osteosarcomas are especially rare in the mandible and maxilla, representing 1.6% of all bony malignant tumours. In this article, we described a case of osteosarcoma of the mandible. Computed tomography (CT) image showed a well-circumscribed homogeneous mass, with nonhomogeneous contrast enhancement. T1-weighted magnetic resonance imaging (MR) image showed intermediate signal intensity on, and after administration the lesion showed signal intensity lower than muscle. T2-weighted MR image showed heterogeneous high signal intensity...
2017: Chinese Journal of Dental Research
https://www.readbyqxmd.com/read/28808451/prevalence-of-taurodont-molars-in-a-selected-iranian-adult-population
#12
Davoud Jamshidi, Maryam Tofangchiha, Nasim Jafari Pozve, Mahdis Mohammadpour, Bijan Nouri, Kazem Hosseinzadeh
INTRODUCTION: Taurodontism is an anomaly characterized by elongated crowns and consumedly apical location of the bifurcation area. This study aimed to determine the prevalence of taurodontism in molars based on digital panoramic radiographies in eight cities of Iran. METHODS AND MATERIALS: This descriptive cross-sectional study was conducted on 2360 digital panoramic radiographs taken for different treatment purposes. Demographic information of patients was recorded and radiographs were evaluated for presence of taurodont molars...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28808036/reducing-posttreatment-relapse-in-cleft-lip-palatal-expansion-using-an-injectable-estrogen-nanodiamond-hydrogel
#13
Christine Hong, Dayoung Song, Dong-Keun Lee, Lawrence Lin, Hsin Chuan Pan, Deborah Lee, Peng Deng, Zhenqing Liu, Danny Hadaya, Hye-Lim Lee, Abdulaziz Mohammad, Xinli Zhang, Min Lee, Cun-Yu Wang, Dean Ho
Patients with cleft lip and/or palate (CLP), who undergo numerous medical interventions from infancy, can suffer from lifelong debilitation caused by underdeveloped maxillae. Conventional treatment approaches use maxillary expansion techniques to develop normal speech, achieve functional occlusion for nutrition intake, and improve esthetics. However, as patients with CLP congenitally lack bone in the cleft site with diminished capacity for bone formation in the expanded palate, more than 80% of the patient population experiences significant postexpansion relapse...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28803745/further-development-of-the-mronj-minipig-large-animal-model
#14
Sven Otto, Christoph Pautke, Olga Martin Jurado, Dirk Nehrbass, Martin J Stoddart, Michael Ehrenfeld, Stephan Zeiter
Medication-related osteonecrosis of the jaw (MRONJ) is a rare but serious and potentially severe side effect of antiresorptive therapy with bisphosphonates or denosumab. Recently, a large animal minipig MRONJ model was introduced which led to early necrotic lesions in the majority of extraction sites after bisphosphonate administration. The aim of this project was to modify the preoperative cumulative bisphosphonate dose (zoledronate) and hereby firstly to demonstrate the reliability and reproducibility of the established model...
July 18, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28803739/two-stage-reconstruction-of-the-severely-deficient-alveolar-ridge-bone-graft-followed-by-alveolar-distraction-osteogenesis
#15
A Rachmiel, O Emodi, D Aizenbud, D Rachmiel, D Shilo
Distraction osteogenesis for the augmentation of severe alveolar bone deficiency has gained popularity during the past two decades. In cases where the vertical bone height is not sufficient to create a stable transport segment, performing alveolar distraction osteogenesis (ADO) is not possible. In these severe cases, a two-stage treatment protocol is suggested: onlay bone grafting followed by ADO. An iliac crest onlay bone graft followed by ADO was performed in 13 patients: seven in the mandible and six in the maxilla...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28798002/sarcomatoid-carcinoma-of-the-maxilla-a-case-report-with-literature-review
#16
Lahcen Khalfi, Yassine Ziani, Mouna Kairouani, Odry Agbessi, Mohammed Kamal Fiqhi, Alae Guerrouani, Karim El Khatib
Sarcomatoid carcinoma is a very rare malignant and aggressive tumor that can involve the maxillary sinus. We report the case of a 46 y/o male who presented a tumor of the right maxillary sinus with extension to the right nasal cavity. The diagnosis of sarcomatoid carcinoma was set by histology and immunohistochemistry. The patient received concomitant cisplatin based chemoradiotherapy with no response after 3 months of treatment. He died 6 months later. Through the present case and the review of literature we discuss all aspects of this entity: clinical presentation, differential diagnoses, pathology, treatment and prognosis...
May 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28796822/growth-of-the-hard-palate-in-infants-with-down-syndrome-compared-with-healthy-infants-a-retrospective-case-control-study
#17
Daniel Klingel, Ariane Hohoff, Robert Kwiecien, Dirk Wiechmann, Thomas Stamm
OBJECTIVE: To investigate morphological differences of the hard palate in infants with Down syndrome (DS) compared with a volumetric-matched control group (CG). METHODS: Trial design: retrospective case control study. Based on inclusion and exclusion criteria, plaster casts of edentulous maxillae of 40 DS infants (20 females and 20 males, aged 221.3 ± 132.4 days) and 40 CG infants (20 females and 20 males, aged 53.9 ± 87.2 days) were digitized and converted into 3-dimensional stereolithography data...
2017: PloS One
https://www.readbyqxmd.com/read/28795395/modulation-of-periodontitis-progression-using-ph-responsive-nanosphere-encapsulating-metronidazole-or-n-phenacylthialzolium-bromide
#18
J-H Lin, F Feng, M-C Yu, C-H Wang, P-C Chang
BACKGROUND AND OBJECTIVE: This study aimed to develop pH-responsive polylactide-glycolic acid co-polymer and chitosan (PLGA/chitosan) nanosphere as an inflammation-responsive vehicle and evaluate the potential of the nanosphere encapsulating metronidazole, an antibiotic, and N-phenacylthiazolium bromide (PTB), a host modulator, for treating periodontitis. MATERIAL AND METHODS: PLGA/chitosan nanospheres were fabricated using oil-in-water emulsion method. Experimental periodontitis was induced on the rat maxillae, and the sites were randomly allocated to four treatment categories, including periodontitis alone (PR), periodontitis with nanospheres alone, nanospheres encapsulating metronidazole (MT) and nanospheres encapsulating PTB (PB)...
August 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28793965/clinical-accuracy-of-waferless-maxillary-positioning-using-customized-surgical-guides-and-patient-specific-osteosynthesis-in-bimaxillary-orthognathic-surgery
#19
Marcus Heufelder, Frank Wilde, Sebastian Pietzka, Frank Mascha, Karsten Winter, Alexander Schramm, Majeed Rana
Computer-assisted planning and surgery for the treatment of orthognathic deformities have been extensively documented over the last decade. Computerized and customized wafers have lacked to improve the accuracy of maxillary positioning, resulting in a drawback of computer-assisted orthognathic surgery. The aim of this study was to determine the accuracy of a new technique of waferless maxillary positioning using customized surgical guides and patient specific osteosynthesis implants in bimaxillary orthognathic surgery...
July 8, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28791817/binder-syndrome-clinical-findings-and-surgical-treatment-of-18-patients-at-the-department-of-plastic-surgery-in-polanica-zdr%C3%A3-j
#20
Piotr H Drozdowski, Ireneusz Łątkowski, Mateusz G Zachara, Piotr Wójcicki
BACKGROUND: Binder syndrome (BS) is an uncommon congenital underdevelopment of the maxilla and nasal skeleton. Other clinical features include a hypoplastic or absent anterior nasal spine; a short, flat nose with short columella; an acute nasolabial angle; a convex upper lip and class III malocclusion. OBJECTIVES: The aim of the study was to outline the major characteristics of BS and to present a variety of surgical treatment methods. MATERIAL AND METHODS: The study included 18 patients treated in the authors' department from 1989 to 2013...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
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