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Maxilla fracture

Simone Heuberer, Christian Ulm, Konstantin Zauza, Werner Zechner, Georg Watzek, Gabriella Dvorak
PURPOSE: The present prospective pilot study aimed to evaluate the feasibility of Onplants (Onplant Orthodontic System) off label use in the highly atrophic edentulous maxillae of adult patients to avoid bone grafting and conventional dental or zygomatic implants. MATERIAL AND METHODS: Two Onplants were placed subperiosteally in the anterior part of the hard palate in five adult patients presenting a highly atrophic edentulous maxilla, class V or VI, according to Cawood and Howell...
2016: European Journal of Oral Implantology
Hayat Aynaou, Imane Skiker, Hanane Latrech
INTRODUCTION: Pycnodysostosis is a rare genetic disease characterized by osteosclerosis and bone fragility. The clinical aspects are varied including short stature, acro-osteolysis of distal phalanges, and dysplasia of the clavicles. Oral and maxillofacial manifestations of this disease are very clear. The head is usually large, a beaked nose, obtuse mandibular angle, and both maxilla and mandible are hypoplastic. Dental abnormalities are common. We report a case with the typical clinical and radiological characteristics of the Pycnodysostosis associated with a conductive hearing loss, an association rarely reported...
April 2016: Journal of Orthopaedic Case Reports
Xiaona Jin, Hongli Jing, Yu Liu, Fang Li
A 14-year-old girl underwent a Tc MDP bone scan to evaluate multiple fractures. The images showed not only expected increased activity at the fracture sites of lower extremities but also intense activity in both sides of the maxilla and mandible. Microscopic examination of the mandible was consistent with a diagnosis of gigantiform cementoma.
November 2016: Clinical Nuclear Medicine
Youn-Jung Kim, Shin Ahn, Dong-Woo Seo, Chang Hwan Sohn, Hyung-Joo Lee, In-June Park, Dong-Jin Yang, Seung Mok Ryoo, Won Young Kim, Kyung Soo Lim
OBJECTIVES: This study aimed to determine orbital wall fracture (OWF) patterns and associated facial injuries in elderly patients and compare them with those in their younger adult counterparts. DESIGN: A retrospective case-control study. SETTING: An emergency department of a university-affiliated hospital located in an urban area. PARTICIPANTS: A total of 1378 adult patients with OWF diagnosed by CT from 1 January 2004 through 31 March 2014 were enrolled...
September 19, 2016: BMJ Open
Chaitanya C Khanapure, Salika Ayesha, George Sam, V J Anil Kumar, C Deepika, Haseena Ahmed
AIM: The present study was aimed to evaluate the resistance to deformation or fracture of brackets of various materials (ceramic, ceramic reinforced with metal slot, and stainless steel brackets) with archwires during application of torque. MATERIALS AND METHODS: The sample size included 30 brackets of maxillary right central incisor with slot dimension of 0.022 × 0.028" and made of three materials (10 of each type): (1) Ceramic brackets (cer), (2) ceramic brackets reinforced with stainless steel slot (cer/ss), and (3) stainless steel brackets (metal)...
2016: Journal of Contemporary Dental Practice
Mohanavalli Singaram, Sree Vijayabala G, Rajesh Kumar Udhayakumar
OBJECTIVES: This retrospective study aims to evaluate the prevalence of maxillofacial trauma in a developing country, along with its pattern, etiology and management. Data for the present study were collected from the Department of Dentistry, ESIC Medical College and Post Graduate Institute of Medical Sciences and Research, Chennai in India. MATERIALS AND METHODS: The medical records of patients treated for maxillofacial injuries between May 2014 and November 2015 were retrospectively retrieved and analyzed for prevalence, pattern, etiology, and management of maxillofacial trauma...
August 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Erica Kristen Ludi, Saurabh Rohatgi, Matthew E Zygmont, Faisal Khosa, Tarek N Hanna
OBJECTIVE: The objective of the present study is to examine the concordance of facial fracture classifications in patients with trauma who underwent surgery and to assess the epidemiologic findings associated with facial trauma. MATERIALS AND METHODS: Patients with trauma who underwent facial CT examination and inpatient operative intervention during a 1-year period were retrospectively analyzed. Patient demographic characteristics, the mechanism of injury, the radiology report, the surgical diagnosis, and clinical indications were reviewed...
November 2016: AJR. American Journal of Roentgenology
Sung Woon On, Hyun Jun Kim, Jayoun Kim, Jin Wook Choi, Young Wook Jung, Seung Il Song
OBJECTIVES: The aims of this study were to investigate the availability of Hounsfield unit (HU) measurement of computed tomography (CT) in evaluating the bone density of certain sites by comparing bone density between CT and dual-energy x-ray absorptiometry (DEXA), and to evaluate the effects of osteoporosis on osteotomy sites in orthognathic surgery. METHODS: This retrospective study included 80 patients who had undergone both facial CT and DEXA at our hospital...
October 2016: Journal of Craniofacial Surgery
J N Winer, B Arzi, D M Leale, P H Kass, F J M Verstraete
Maxillae and/or mandibles from 76 walruses (Odobenus rosmarus) were examined macroscopically according to predefined criteria. The museum specimens were acquired between 1932 and 2014. Forty-five specimens (59.2%) were from male animals, 29 (38.2%) from female animals and two (2.6%) from animals of unknown sex, with 58 adults (76.3%) and 18 young adults (23.7%) included in this study. The number of teeth available for examination was 830 (33.6%); 18.5% of teeth were absent artefactually, 3.3% were deemed to be absent due to acquired tooth loss and 44...
August 2016: Journal of Comparative Pathology
S S Subramaniam, A A Heggie, R Kumar, J M Shand
Paediatric odontogenic myxoma (OM) is a rare pathological condition in the oral and maxillofacial region. There has been much debate in the literature regarding the preferred method of treatment; however due to the rare nature of this disease, definitive algorithms of management are yet to be determined. A case series of eight paediatric patients with OM is presented. Six of the lesions were in the maxilla and two were mandibular lesions. The patients were aged between 2 and 18 years. Treatment ranged from excision and the application of Carnoy's solution to segmental resection and reconstruction...
August 8, 2016: International Journal of Oral and Maxillofacial Surgery
P Wu, Z Y Yang, Y Liu, Y Li, Y H Tan
OBJECTIVE: To analyze the impact of maxillofacial injury on skull base. METHODS: A three-dimensional(3D)finite-element model of cranio-maxillofacial bone was established by CT scan data. A lead cylinder in base diameter of 3 cm was designed as an impactor. There regions(upper right maxilla, left infraorbital margin and left zygomatic body)subjected to an impact at the speed of 8.6 m/s(about 30 km/h)was simulated. Thirteen landmarks at the skull base were selected...
August 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Giovanni de A P Di Giacomo, Patricia R Cury, Airton M da Silva, Jorge V L da Silva, Sergio A Ajzen
STATEMENT OF PROBLEM: Extensive occlusal adjustments and misfit of the prosthesis to prosthetic components are frequent problems related to fixed interim prosthesis fabrication with immediate dental implant loading. PURPOSE: The purpose of this clinical trial was to evaluate a prosthetic guide made with a rapid prototype model based on virtual surgical planning. This prosthetic guide was used to fabricate fixed interim prostheses that would allow immediate implant loading after computer-guided implant installation...
July 23, 2016: Journal of Prosthetic Dentistry
Bruno Mt Queridinha, Ricardo F Almeida, António Felino, Miguel de Araújo Nobre, Paulo Maló
PURPOSE: The purpose of this study was to compare the outcome of fixed partial prostheses in the posterior maxilla with two axially placed implants or one implant placed distally tilted and one axially placed implant following an immediate loading protocol. MATERIALS AND METHODS: A sample of 60 patients was divided into two groups-group 1: 30 patients rehabilitated with one axially placed implant and one implant placed distally tilted in the posterior maxilla; group 2: 30 patients rehabilitated with two axially placed implants in the posterior maxilla...
July 2016: International Journal of Oral & Maxillofacial Implants
Shahrzad S Daneshvar, Debora C Matthews, Pierre-Luc Michuad, Edmond Ghiabi
PURPOSE: The purpose of this study was to evaluate the clinical, radiographic, and patient-based outcomes of dental implants placed at an undergraduate student dental clinic. MATERIALS AND METHODS: A retrospective study was performed to determine the success and survival rates of dental implants placed at the undergraduate dental clinic at Dalhousie University between January 1999 and January 2012. Only patients with a minimum of 1-year follow-up were included. Clinical and radiographic assessments determined implant success and survival rates...
July 2016: International Journal of Oral & Maxillofacial Implants
Jennifer Matthews, Wendy Ng, Stuart Archibald, Carolyn Levis
BACKGROUND: The osteocutaneous radial forearm free flap (OC-RFFF) remains a useful tool in head and neck reconstruction; however, it can be challenging to harvest sufficient bone for large reconstructions. The extended OC-RFFF is a modification that involves harvest of the distal border of the radius to the tip of the styloid. This increases the length of the bone flap by 2 cm to 3 cm, and the inherent contour of the styloid can be used to reconstruct the anterior curvature of the mandible or maxilla without additional osteotomies that may reduce blood supply...
2016: Plastic Surgery
Su Hyun Choi, Ja Hea Gu, Dong Hee Kang
The consequences of facial trauma remain of great significance both functionally and esthetically. Traffic accident-related facial trauma is a frequent and significant cause of maxillofacial injury. The purpose of this study was to determine the natural history of traffic accident-related facial injuries in 846 patients over a 10-year period at a regional emergency center. The authors report a retrospective study of 846 patients with facial trauma from traffic accidents. The medical records of these patients were reviewed and analyzed to determine clinical characteristics, treatments, and outcomes of traffic accident-related facial trauma...
October 2016: Journal of Craniofacial Surgery
Hooshang Akbari, Mohammad Ali Heidari-Gorji, Rostam Poormousa, Mitra Ayyasi
It can be challenging to create a safe airway in maxilla facial fracture and some skull surgeries. In this case study, the patient experienced jaw fractures that disturbed the dental occlusion and associated fracture of the base of the skull. Neither nasal nor oral intubation was possible based on the side effects of tracheotomy; therefore, submental intubation was applied successfully. The procedure and results are presented in the text.
June 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Kelvin I Afrashtehfar
Data sourcesMedline, the Cochrane Library, Google and hand-searches of systematic reviews and bibliographies from related journals in English and German up to August 2012.Study selectionThree reviewers independently searched for clinical trials that assessed the success rates of placing two anterior and two posterior tilted dental implants in humans either in the maxilla or mandible according to the all-on-four treatment concept. Inclusion limited studies with a minimum follow-up period of one year.Data extraction and synthesisThe primary outcome measure was the failure rate of implants...
June 2016: Evidence-based Dentistry
Pingping Han, Shifeier Lu, Yinghong Zhou, Karine Moromizato, Zhibin Du, Thor Friis, Yin Xiao
Atomic minerals are the smallest components of bone and the content of Ca, being the most abundant mineral in bone, correlates strongly with the risk of osteoporosis. Postmenopausal women have a far greater risk of suffering from OP due to low Ca concentrations in their bones and this is associated with low bone mass and higher bone fracture rates. However, bone strength is determined not only by Ca level, but also a number of metallic and non-metallic elements in bone. Thus, in this study, the difference of metallic and non-metallic elements in ovariectomy-induced osteoporosis tibial and maxillary trabecular bone was investigated in comparison with sham operated normal bone by laser ablation inductively-coupled plasma mass spectrometry using a rat model...
2016: International Journal of Molecular Sciences
Gary M Heir, Richard Chan Park, Steven R Singer
Pain is among the most common reasons for patient visits to healthcare providers, especially to dental practitioners. This case illustrates the obligation of the general dentist and specialist to recognize facial pain disorders of nonodontogenic origin, and outlines a paradigm for treatment of this unusual case. A 59-year-old man presented with chronic, progressive right periorbital pain since 2006, of 7 years duration. The initial diagnosis was a fracture of the right outer rim of the orbit secondary to trauma...
2016: Quintessence International
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