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maxillofacial pathology

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https://www.readbyqxmd.com/read/28297089/cone-beam-computed-tomographic-imaging-in-orthodontics
#1
W C Scarfe, B Azevedo, S Toghyani, A G Farman
Over the last 15 years, cone beam computed tomographic (CBCT) imaging has emerged as an important supplemental radiographic technique for orthodontic diagnosis and treatment planning, especially in situations which require an understanding of the complex anatomic relationships and surrounding structures of the maxillofacial skeleton. CBCT imaging provides unique features and advantages to enhance orthodontic practice over conventional extraoral radiographic imaging. While it is the responsibility of each practitioner to make a decision, in tandem with the patient/family, consensus-derived, evidence-based clinical guidelines are available to assist the clinician in the decision-making process...
March 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28282517/risk-factor-analysis-of-graft-failure-with-concomitant-cyst-enucleation-of-the-jaw-bone-a-retrospective-multicenter-study
#2
Ho-Kyung Lim, Jin-Woo Kim, Ui-Lyong Lee, Ju-Won Kim, Ho Lee
PURPOSE: Cysts are common pathologic entities in the oral and maxillofacial region. Enucleation is commonly used for treatment and is occasionally followed by bone grafting. However, no studies have evaluated factors affecting the failure of grafts used for cystic defects in the oral and maxillofacial region. Therefore, the present study was conducted to determine the risk factors for postoperative graft failure in patients treated with cyst enucleation and simultaneous bone grafting...
February 14, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28280708/evaluation-of-postoperative-complications-according-to-treatment-of-third-molars-in-mandibular-angle-fracture
#3
Hye-Youn Lim, Tae-Young Jung, Sang-Jun Park
OBJECTIVES: The aim of this study was to evaluate the implication of third molars in postoperative complications of mandibular angle fracture with open reduction and internal fixation (ORIF). MATERIALS AND METHODS: Data were collected on patients who presented with mandibular angle fracture at our Department of Oral and Maxillofacial Surgery between January 2011 and December 2015. Of the 63 total patients who underwent ORIF and perioperative intermaxillary fixation (IMF) with an arch bar, 49 patients were identified as having third molars in the fracture line and were followed up with until plate removal...
February 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28251102/incidence-of-distal-caries-in-mandibular-second-molars-due-to-impacted-third-molars-nonintervention-strategy-of-asymptomatic-third-molars-causes-harm-a-retrospective-study
#4
Nikhil Srivastava, Akshay Shetty, Rahul Dev Goswami, Vijay Apparaju, Vivek Bagga, Saurabh Kale
BACKGROUND: Removal of impacted third molars is the most common oral surgical procedure. Many investigators have questioned the necessity of removal in patients who are free of symptoms or associated pathologies. AIM: The aim of this retrospective study was to evaluate the incidence of caries on distal aspect of mandibular second molars in patients referred for corresponding third molar assessment and to identify its association with angular position and depth of the impacted mandibular third molars based on the classification of Pell and Gregory...
January 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28243337/changes-in-physicochemical-and-biological-properties-of-porcine-bone-derived-hydroxyapatite-induced-by-the-incorporation-of-fluoride
#5
Wei Qiao, Quan Liu, Zhipeng Li, Hanqing Zhang, Zhuofan Chen
As the main inorganic component of xenogenic bone graft material, bone-derived biological apatite (BAp) has been widely used in implant dentistry, oral and maxillofacial surgery and orthopedics. However, BAp produced via calcination of animal bones still suffers from some drawbacks, such as insufficient mechanical strength and inadequate degradation rate, which impede its application. Fluoride is known to play important roles in both physiological and pathological processes of human hard tissues for its double effects on bones and teeth...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28211022/a-comparative-study-of-the-perspectives-of-general-and-oral-and-maxillofacial-pathologists-about-the-rate-and-value-of-second-referral-in-assessment-of-oral-and-maxillofacial-pathologic-lesions
#6
Sayed Mohammad Razavi, Alireza Liaghatdar, Neda Kargahi
The main purpose in the practice of pathology is to provide an accurate diagnosis. Second referral and reassessment by a second pathologist significantly cause diagnostic errors, help to make an accurate diagnosis, and improve patient management. This study was aimed to assess the general perspectives of general and oral and maxillofacial pathologists in Iran on second referrals. In this cross-sectional, descriptive-analytical study, a 20-item questionnaire on second referrals was used to assess the general and oral and maxillofacial pathologists' perspective in Iran...
February 16, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28209002/ability-of-oral-and-maxillofacial-surgery-residents-in-diagnosing-jaw-cysts-a-retrospective-20-years-study
#7
Hassan Mohajerani, Mohammad Esmaeelinejad, Reza Mofidian
INTRODUCTION: Diagnosis of odontogenic cysts despite of their benign nature is a critical and challenging problem especially among undergraduate and postgraduate students. AIM: This study aimed to evaluate the capability of oral and maxillofacial surgery residents in diagnosing odontogenic cysts. MATERIALS AND METHODS: This cross-sectional study was executed on 312 patient records over the past 20 years since October 1995 till December 2014 in Taleghani Hospital, Tehran, Iran...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28199140/role-of-bone-marrow-stromal-cells-in-impaired-bone-repair-from-bronj-osseous-lesions
#8
L H He, E Xiao, J G An, Y He, S Chen, L Zhao, T Zhang, Y Zhang
Treatment of bisphosphonate-related osteonecrosis of the jaw (BRONJ) has posed significant challenges to maxillofacial surgeons because of the poor repair of BRONJ bone defects. Moreover, the pathological mechanisms remain unclear. Bone marrow stromal cells (BMSCs) play key roles during bone repair and bone regeneration. However, the activities of BMSCs derived from BRONJ lesions and the BRONJ lesion boundary, as well as the roles of BMSCs in BRONJ defect repair, are poorly defined. In this study, we found that BMSCs from the central area of the osteonecrotic BRONJ region (center-BRONJ BMSCs) and the peripheral area at the recommended debridement boundary (peri-BRONJ BMSCs) had decreased proliferative ability, self-renewal capacity, and multidifferentiation capacities compared with control BMSCs...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28194401/clinical-application-of-cone-beam-computed-tomography-of-the-rabbit-head-part-2-dental-disease
#9
G G Riggs, Derek D Cissell, Boaz Arzi, David C Hatcher, Philip H Kass, Amy Zhen, Frank J M Verstraete
Domestic rabbits are increasing in popularity as household pets; therefore, veterinarians need to be familiar with the most common diseases afflicting rabbits including dental disease. Current diagnostic approaches include gross oral examination, endoscopic oral examination, skull radiography, and computed tomography (CT). Cone beam computed tomography (CBCT), a new oral and maxillofacial imaging modality that has the capability to produce high-resolution images, has not yet been described for use in evaluating dental disease in rabbits...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28174361/prevalence-and-pattern-of-mandibular-third-molar-impaction-in-eritrean-population-a-retrospective-study
#10
V Raj Kumar, Priya Yadav, Efrem Kahsu, Farhana Girkar, Rajnish Chakraborty
INTRODUCTION: The most commonly impacted tooth in the oral cavity is the mandibular third molar. Various etiologic factors have been suggested for impacted mandibular third molars. The pattern and prevalence of impacted mandibular third molars vary with different population and region. This study throws light on the prevalence and pattern of impacted mandibular third molars in Eritrea, East Africa. This is the first reported study regarding the same from Eritrea. AIM: To assess the prevalence and pattern of impacted mandibu-lar third molars in the population of Eritrea, East Africa by conducting a retrospective study from January 2009 to January 2014...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28089087/prevalence-profile-of-odontogenic-cysts-and-tumors-on-brazilian-sample-after-the-reclassification-of-odontogenic-keratocyst
#11
Filipe Jaeger, Mariana Saturnino de Noronha, Maiza Luiza Vieira Silva, Márcio Bruno Figueiredo Amaral, Soraya de Mattos Carmago Grossmann, Martinho Campolina Rebello Horta, Paulo Eduardo Alencar de Souza, Maria Cássia Ferreira de Aguiar, Ricardo Alves Mesquita
PURPOSE: The aim of this study was to evaluate the impact of the reclassification of odontogenic keratocyst (OKC) as a tumor on the prevalence profile of odontogenic cysts (OCs) and odontogenic tumors (OTs). STUDY DESIGN: Two referral Oral and Maxillofacial Pathology services in Brazil were evaluated. All cases diagnosed as OCs or OTs were selected and classified according to the 1992 WHO-classification (cases before 2005 WHO classification of tumors excluding OKC) and the 2005 WHO classification of tumors, going forward including cases of odontogenic keratocyst tumor (KCOT)...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28029726/a-novel-strategy-for-diagnosing-viral-versus-bacterial-infection-implications-for-oral-diseases
#12
Nataly Kravchenko-Balasha, Aframian J Doron
Infections in the maxillofacial complex, including the oral cavity, are common and in certain cases may develop into a severe condition with life threating complications in healthy populations but especially in medical compromised patients (Moazzam et al, 2015). Often, treatment is based on personal experts' experience with limited accuracy obtained from diagnostic laboratory tests. Consequently, "trial and error" attempts are usually implemented until success, in the best case, is accomplished. As a result, there is a pressing need in clinical practice for developing efficient tools for understanding the pathological nature of the infection and its rapid identification based on infection biomarkers...
December 28, 2016: Oral Diseases
https://www.readbyqxmd.com/read/28008429/applications-of-patient-specific-3d-printing-in-medicine
#13
Martin Heller, Heide-Katharina Bauer, Elisabeth Goetze, Matthias Gielisch, Klaus E Roth, Philipp Drees, Gerrit S Maier, Bernhard Dorweiler, Ahmed Ghazy, Meik Neufurth, Werner E G Müller, Heinz C Schröder, Xiaohong Wang, Christian-Friedrich Vahl, Bilal Al-Nawas
Already three decades ago, the potential of medical 3D printing (3DP) or rapid prototyping for improved patient treatment began to be recognized. Since then, more and more medical indications in different surgical disciplines have been improved by using this new technique. Numerous examples have demonstrated the enormous benefit of 3DP in the medical care of patients by, for example, planning complex surgical interventions preoperatively, reducing implantation steps and anesthesia times, and helping with intraoperative orientation...
2016: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/27999596/traumatic-pseudoaneurysm-of-the-internal-maxillary-artery-a-rare-life-threatening-hemorrhage-as-a-complication-of-maxillofacial-fractures
#14
E Nastro Siniscalchi, L Catalfamo, A Pitrone, R Papa, F Famà, G Lo Giudice, G Cervino, M Cicciu, F S De Ponte
Pseudoaneurysm of the internal maxillary artery due to a traumatic event is a rare condition. Pseudoaneurysms are usually directly produced by arteries break with extravasation of blood. The compressed perivascular tissue forms the wall of aneurysmal sac. Then, this sac gradually expands and can be damaged. It is rare to see pseudoaneurysms of IMA. They are usually associated with fracture of the neck of the mandible. To the best of our knowledge the pseudoaneurysm of the internal maxillary artery related to maxillofacial trauma is an event extremely rare in the literature and if not quickly managed can lead to the patient's death...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27992832/ct-guided-125-i-brachytherapy-in-the-treatment-of-distant-metastases-in-the-oral-cavity-and-maxillofacial-region
#15
Huzheng Yan, Zhanwang Xiang, Zhihui Zhong, Zhiqiang Mo, Tao Zhang, Guanyu Chen, Fujun Zhang, Fei Gao
PURPOSE: We aimed to evaluate the feasibility and clinical effectiveness of CT-guided (125)I brachytherapy for distant oral and maxillofacial metastases. MATERIALS AND METHODS: We retrospectively analyzed 65 patients with 84 distant oral and maxillofacial metastases. Thirty-one patients with 38 lesions received (125)I brachytherapy (group A) and 34 with 46 lesions received external beam radiotherapy (EBRT; group B). RESULTS: Median follow-up time was 16 months...
December 16, 2016: Translational Oncology
https://www.readbyqxmd.com/read/27974959/a-10-year-retrospective-analysis-of-64-cases-of-cystic-lesions-of-the-oral-and-maxillofacial-region-in-a-nigerian-tertiary-hospital
#16
Benjamin Fomete, Otasowie Daniel Osunde, Joseph Ogbeifun, Rowland Agbara, Charles Ndubissi Ononiwu
OBJECTIVES: Orofacial cysts are broadly divided into odontogenic and nonodontogenic types, epithelial or non-epithelial, and developmental or inflammatory in origin. The odontogenic cyst is an osseous-destructive lesion that most commonly affects the jaw. It is formed by activation of odontogenic cell rests entrapped within the bone or gingival tissue of the jaws, such as the epithelial remains of Malassez, the dental lamina (cell rests of Serres), or the enamel organ. METHODS: We performed a retrospective study of all histologically diagnosed cysts of the orofacial region seen at the Maxillofacial clinic of the Ahmadu Bello University Teaching Hospital, Nigeria, between January 2003 and December 2012...
November 2016: Oman Medical Journal
https://www.readbyqxmd.com/read/27941195/mucoceles-of-minor-salivary-glands-in-children-own-clinical-observations
#17
Bogumił Lewandowski, Robert Brodowski, Paweł Pakla, Aleksander Makara, Wojciech Stopyra, Bartek Startek
INTRODUCTION: Mucoceles are benign lesions associated with the pathology of the oral mucosa of minor salivary glands. Two types of cysts are distinguished depending on their pathogenesis. Most often they occur as a result of mechanical trauma and mucus extravasation into tissues or obstruction of the gland ducts. AIM: The aim of the study was to present our own experiences regarding mucoceles of minor salivary glands in the oral cavity taking into account how frequently the individual types of cysts occur in children...
2016: Developmental Period Medicine
https://www.readbyqxmd.com/read/27836445/-masticatory-system-and-maxillofacial-prosthesis-from-pathology-to-function-recovering
#18
S Vo Quang, J Dichamp
Maxillofacial prosthesis (MFP) can be defined as the art and science of esthetic and functional reconstruction of the facial bones, art because it uses hand-crafted and empirical rules, science because of its technical rigorism and its integration in medicine. MFP aims to multidisciplinary rehabilitate patients presenting with cutaneous and underlying structures defects, It also allows for functional speech and swallowing rehabilitation related to temporo-mandibular joint disorders. Whatever the origin, (traumatic, infectious ortumoral), surgical treatment of these TMJ disorders is usually not indicated in first-line...
December 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27821247/predicting-radiotherapy-necessity-in-tongue-cancer-using-lymph-node-yield
#19
Zhien Feng, Qiao Shi Xu, Li Zheng Qin, Hua Li, Zhengxue Han
PURPOSE: In patients with head and neck cancer and a single metastatic lymph node (pN1), the value of lymph node yield (LNY) remains controversial in determining the prognosis and identifying patients who require radiotherapy. This study evaluated the role of LNY in predicting the adequacy of neck dissection, need for adjuvant radiotherapy, and survival in patients with pN1 oral tongue squamous cell carcinoma. MATERIALS AND METHODS: The authors implemented a retrospective cohort study...
October 14, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27791424/giant-maxillary-gingival-fibromatosis
#20
K A Stephenson, G J Klopper, J Opperman, C Favara
We present a case of both unusual pathology and severity - giant maxillary gingival fibromatosis - and discuss the disease and its management, accompanied by clinical imaging. This represents an overlap between maxillofacial and oral surgery, and may present as demonstrated in this case.
February 2017: Annals of the Royal College of Surgeons of England
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