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Dentoalveolar

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https://www.readbyqxmd.com/read/29149496/predictive-factors-for-osteoradionecrosis-of-the-jaws-a-retrospective-study
#1
Hans P Sathasivam, Gareth R Davies, Nicholas M Boyd
BACKGROUND: Osteoradionecrosis of the jaw (ORNJ) is a well-recognized complication of radiotherapy. The purpose of this study was to assess predictive factors for the development of ORNJ. METHODS: A retrospective study of 325 patients with head and neck squamous cell carcinoma (HNSCC) treated at one institution between January 1, 1999, and December 31, 2008, was conducted. Outcome measure was the presence/absence of ORNJ. Time to event was recorded and Cox proportional hazard regression analysis was used to determine statistically significant predictive factors...
November 17, 2017: Head & Neck
https://www.readbyqxmd.com/read/29140591/preventive-effects-of-tonsil-derived-mesenchymal-stem-cells-on-osteoradionecrosis-in-a-rat-model
#2
Hae Sang Park, Jihae Lee, Jin-Woo Kim, Ha Young Kim, Soo Yeon Jung, Sung Min Lee, Chan Hum Park, Han Su Kim
BACKGROUND: The purpose of this study was to investigate the effects of tonsil-derived mesenchymal stem cells (MSCs) on osteoradionecrosis (ORN). METHOD: We generated a mandibular ORN rat model using a combination of 20-Gy single-dose irradiation and tooth extraction. Study groups were negative control (tooth extraction only), ORN group (irradiation, tooth extraction), Matrigel-1 group (Matrigel; BD Biosciences, San Jose, CA; irradiation, Matrigel application immediately after tooth extraction), tonsil-derived MSC-1 group (irradiation, tonsil-derived MSC application immediately after tooth extraction), Matrigel-4 group (irradiation, Matrigel application 4 weeks after tooth extraction), and tonsil-derived MSC-4 group (irradiation, tonsil-derived MSC application 4 weeks after tooth extraction)...
November 15, 2017: Head & Neck
https://www.readbyqxmd.com/read/29139168/hunter-gatherer-dental-pathology-do-historic-accounts-of-aboriginal-australians-correspond-to-the-archeological-record-of-dental-disease
#3
Judith Littleton
OBJECTIVES: Studies of hunter-gatherer oral pathology, particularly in Australia, often focus upon dental wear and caries or assume that historic studies of Aboriginal people reflect the precontact past. Consequently the range of population variation has been underestimated. In this paper dental pathology from human remains from Roonka are compared with a model of dental pathology derived from historic studies. The aim is to identify aspects of dental pathology indicative of regional or intra-population diversity...
November 15, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29119095/changes-consequent-to-maxillary-molar-distalization-with-the-bone-anchored-pendulum-appliance
#4
Aldo Otazú Cambiano, Guilherme Janson, Acácio Fuziy, Daniela Gamba Garib, Diego Coelho Lorenzoni
OBJECTIVES: This retrospective study aimed to evaluate the dentoalveolar, skeletal, and soft tissue effects obtained with bone-anchored pendulum appliance in patients with Class II malocclusion. MATERIALS AND METHODS: A total of 18 patients (4 male, 14 female) at a mean pretreatment age of 14.0 years (+1.08) were enrolled in this study. All patients were treated with the bone-anchored pendulum appliance for an average duration of 4.8 months. Only the active distalization period was evaluated with predistalization and postdistalization lateral cephalograms...
October 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/29113846/maxillary-and-mandibular-contribution-to-the-establishment-of-class-ii-malocclusion-in-an-adult-lebanese-population
#5
Nadine El Hajj, Nayla Bassil-Nassif, Alain Tauk, Carole Mouhanna-Fattal, Joseph P Bouserhal
INTRODUCTION: The main aim of this study was to describe the contribution of the maxilla and the mandible to the establishment of a Class II skeletal malocclusion in an adult Lebanese population. Secondary aims were to detect the presence of sex-based dimorphism and to study the influence of the vertical dimension on the Class II skeletal pattern. MATERIAL AND METHOD: A sample of 90 adults in skeletal Class II was recruited and equally distributed according to sex and vertical typology...
November 4, 2017: International Orthodontics
https://www.readbyqxmd.com/read/29103444/long-term-stability-of-class-ii-treatment-with-the-jasper-jumper-appliance
#6
Camilla Fiedler Foncatti, José Fernando Castanha Henriques, Guilherme Janson, Waleska Caldas, Daniela Gamba Garib
INTRODUCTION: Treatment of Class II Division 1 malocclusion with orthopedic devices combined with fixed orthodontic appliances has shown excellent results when used in growing patients. We aimed to evaluate the long-term stability of the cephalometric changes obtained during Class II malocclusion correction with the Jasper jumper associated with fixed appliances. METHODS: The treatment group comprised 24 patients who were evaluated at 3 stages: pretreatment, posttreatment, and long-term posttreatment...
November 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29099926/treatment-timing-for-functional-jaw-orthopaedics-followed-by-fixed-appliances-a-controlled-long-term-study
#7
Chiara Pavoni, Elisabetta Cretella Lombardo, Roberta Lione, Kurt Faltin, James A McNamara, Paola Cozza, Lorenzo Franchi
Objective: To evaluate the role of treatment timing on long-term dentoskeletal effects of Class II treatment with removable functional appliances followed by full-fixed appliance therapy. Materials and methods: A group of 46 patients (23 females and 23 males) with Class II malocclusion treated consecutively with either Bionator or Activator, followed by fixed appliances was compared with a matched control group of 31 subjects (16 females and 15 males) with untreated Class II malocclusion...
November 1, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29099695/algorithm-for-treatment-of-patients-with-mesial-occlusion-using-proprietary-orthodontic-device
#8
P Flis, V Filonenko, N Doroshenko
Early elimination of dentoalveolar apparatus orthodontic disorders is the dominant concept in the treatment technique. AIM: to present a sagittal anomalies treatment algorithm, of Class III particularly, in the transitional bite period by the proposed design of individual orthodontic devices with a movable ramp. The treatment algorithm consisted of several blocks: the motivation, the etiological factors establishment, the plan and treatment tactics creation basing on careful diagnosis, the stages of the active period of treatment and the patient management in the retention period...
October 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29080960/protocol-for-mandibular-reconstruction-with-zygomatic-implants-zygomatic-mandibular-implant
#9
Ruben Muñoz, Golaszewski Gajos, Jose Bladimir, Diaz Carvajal, Alvaro Luis, Grace Del Valle Speranza
INTRODUCTION: This study describes a modified protocol using transmandibular zygomatic implants with immediate occlusal loading for the comprehensive dental rehabilitation of previously reconstructed mandibular defects and reports preliminary results of this modified protocol. MATERIALS AND METHODS: Fifteen patients (6 female and 9 male), with a mean of age 40.26 years (range 12 to 68 years), had previously undergone immediate mandibular reconstruction using either autologous bone grafting, bone transport, or microvascular free-flap reconstruction for a variety of diagnoses...
October 28, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29064765/examination-of-local-periosteal-microcirculation-after-application-of-absorbable-and-non-absorbable-membranes
#10
Anna Joop, Björn Rahlf, Nils-Claudius Gellrich, Andreas Kampmann, Constantin von See, Marcus Stoetzer
The use of different membranes is common in dentoalveolar surgery. Absorbable and non-absorbable membranes are used, often beneath the periosteum, in order to fulfil different functions (as barriers, patches, spacers, etc.). It is still unclear to what extent such membranes affect the biology of the periosteum and what role is played by the use of piezoelectric devices during preparation of the periosteum. We placed two different membranes (absorbable and non-absorbable) underneath the periosteum of rat calvariae...
October 24, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29043970/-a-change-of-paradigm-in-the-treatment-of-class-ii-malocclusions-in-children-and-adolescents-the-benefits-of-the-class-ii-corrector
#11
Philippe Amat
INTRODUCTION: The treatment of class II malocclusions is the core of our clinical activity. What elements can clinician rely on to offer their patients, whether children or adolescents, a treatment of their class II malocclusion that is not only effective but also the most appropriate for each individual case? Which schedule and what therapeutic device should be used? MATERIALS AND METHODS: Evidence-based orthodontics, along with a search for the best data on two-phase treatments, were used to judge the validity of the main objectives sought when correcting a Class II malocclusion in children or adolescents, including treatment of mandibular retrognathy...
September 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/28987222/controversies-in-dentoalveolar-and-preprosthetic-surgery
#12
REVIEW
Deepak G Krishnan
Dentoalveolar surgeries are among the more common procedures performed by oral maxillofacial surgeons. It is only natural that there are several controversies associated with many aspects of this type of surgery. Although good scientific evidence is the basis of most oral maxillofacial procedures, some of what is accepted as common wisdom may not meet strict guidelines of evidence-based practice. This article explores some controversies that are relevant to the current practice of dentoalveolar surgery.
November 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28985105/class-ii-malocclusion-treatment-effects-with-jones-jig-and-distal-jet-followed-by-fixed-appliances
#13
Lorena Vilanova, José Fernando Castanha Henriques, Guilherme Janson, Mayara Paim Patel, Rachelle Simões Reis, Aron Aliaga-Del Castillo
OBJECTIVES: To compare the skeletal, dentoalveolar, and soft tissue changes in Class II malocclusion patients treated with Jones Jig and Distal Jet distalizers followed by fixed appliances. MATERIALS AND METHODS: The experimental groups comprised 45 Class II malocclusion subjects divided into two groups. Group 1 consisted of 25 patients treated with the Jones Jig, and group 2 consisted of 20 patients treated with the Distal Jet. Group 3 comprised 19 untreated Class II subjects...
October 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28983908/interventions-for-managing-medication-related-osteonecrosis-of-the-jaw
#14
REVIEW
Natalie H Beth-Tasdogan, Benjamin Mayer, Heba Hussein, Oliver Zolk
BACKGROUND: Medication-related osteonecrosis of the jaw (MRONJ) is a severe adverse reaction experienced by some individuals to certain medicines commonly used in the treatment of cancer and osteoporosis (e.g. bisphosphonates, denosumab and antiangiogenic agents) and involves the progressive destruction of bone in the mandible or maxilla. Depending on the drug, its dosage, and the duration of exposure, the occurrence of this adverse drug reaction may be rare (e.g. following the oral administration of bisphosphonate or denosumab treatments for osteoporosis, or antiangiogenic agent-targeted cancer treatment) or common (e...
October 6, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28967333/american-academy-of-periodontology-best-evidence-consensus-statement-on-selected-oral-applications-for-cone-beam-computed-tomography
#15
George A Mandelaris, E Todd Scheyer, Marianna Evans, David Kim, Bradley McAllister, Marc L Nevins, Hector F Rios, David Sarment
BACKGROUND: The American Academy of Periodontology (AAP) recently embarked on a Best Evidence Consensus (BEC) model of scientific inquiry to address questions of clinical importance in periodontology for which there is insufficient evidence to arrive at a definitive conclusion. This review addresses oral indications for use of cone-beam computed tomography (CBCT). METHODS: To develop the BEC, the AAP convened a panel of experts with knowledge of CBCT and substantial experience in applying CBCT to a broad range of clinical scenarios that involve critical structures in the oral cavity...
October 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28967331/cone-beam-computed-tomography-and-interdisciplinary-dentofacial-therapy-an-american-academy-of-periodontology-best-evidence-review-focusing-on-risk-assessment-of-the-dentoalveolar-bone-changes-influenced-by-tooth-movement
#16
George A Mandelaris, Rodrigo Neiva, Leandro Chambrone
BACKGROUND: The aim of this systematic review is to evaluate whether cone-beam computed tomography (CBCT) imaging can be used to assess dentoalveolar anatomy critical to the periodontist when determining risk assessment for patients undergoing orthodontic therapy using fixed or removable appliances. METHODS: Both observational and interventional trials reporting on the use of CBCT imaging assessing the impact of orthodontic/dentofacial orthopedic treatment on periodontal tissues (i...
October 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28962739/maxillary-and-mandibular-dentoalveolar-expansion-with-an-auxiliary-beta-titanium-arch
#17
Júlio de Araújo Gurgel, Célia Regina Maio Pinzan-Vercelino, Vladimir Leon-Salazar
Traditionally, adult patients with mild to moderate transverse discrepancies are treated with a combination of slow maxillary expansion with palatal appliances and expanded archwires. In this case report, we describe an alternative approach for anterior crowding and excessive buccal corridors in a 20-year-old man who was treated using a beta-titanium auxiliary expansion archwire. The perceived benefit of this approach was related not only to the esthetic improvement of the smile resulting from elimination of the anterior crowding and reduction of the buccal corridors, but also to the minimal disruption of the patient's speech, which was his main functional concern...
October 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28954154/interpersonal-violence-circumstances-of-aggressions-and-patterns-of-maxillofacial-injuries-in-the-metropolitan-area-of-campina-grande-state-of-para%C3%A3-ba-brazil-2008-2011
#18
Ítalo Macedo Bernardino, Kevan Guilherme Nóbrega Barbosa, Lorena Marques Nóbrega, Gigliana Maria Sobral Cavalcante, Efigenia Ferreira E Ferreira, Sérgio d'Ávila
The aim of this study was to determine the circumstances of aggressions and patterns of maxillofacial injuries among victims of interpersonal violence. This was a cross-sectional and exploratory study conducted from the analysis of 7,132 medical-legal and social records of interpersonal violence victims seen in a Forensic Medicine and Dentistry Center. Descriptive and multivariate statistics were performed using Multiple Correspondence Analysis. Three groups with different victimization profiles were identified...
September 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28937903/guiding-the-child-s-teeth-with-class-iii-dental-malocclusion-into-correct-occlusion-a-clinician-s-parenting
#19
A Kapur, H S Chawla, A Utreja, A Goyal
Pediatric dentists are often the first ones to be consulted for the presence of an anterior cross bite in the primary dentition. The condition requires an early interception to avoid progressive dentoalveolar and skeletal changes. The management, however, poses unique challenges in terms of young age of the child, correct choice of appliance and unpredictability of the response to treatment due to inability to ascertain the inherent growth potential. It is very important therefore for the specialist, to be able to recognize the early signs of a developing class III malocclusion tendency and also know the basic details of successful management of such cases...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937097/oral-surgery-ii-part-1-acute-management-of-dentoalveolar-trauma
#20
H Tagar, S Djemal
The aesthetics of the mouth are important in determining overall facial attractiveness. People with a relatively normal dental appearance are perceived as more attractive, more intelligent and more desirable as friends. Although the oral region comprises only 1% of the body area it accounts for 5% of all bodily injuries, and of facial injuries, dental injuries are the most common. A US survey among people aged 6-50 years showed that 1 in 4 had evidence of dental trauma.
September 22, 2017: British Dental Journal
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