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Advancement mandibular

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https://www.readbyqxmd.com/read/28932947/integration-of-digital-dental-casts-in-cone-beam-computed-tomography-scans-a-clinical-validation-study
#1
Frits A Rangel, Thomas J J Maal, Martien J J de Koning, Ewald M Bronkhorst, Stefaan J Bergé, Anne Marie Kuijpers-Jagtman
OBJECTIVES: Images derived from cone beam computed tomography (CBCT) scans lack detailed information on the dentition and interocclusal relationships needed for proper surgical planning and production of surgical splints. To get a proper representation of the dentition, integration of a digital dental model into the CBCT scan is necessary. The aim of this study was to validate a simplified protocol to integrate digital dental models into CBCT scans using only one scan. MATERIALS AND METHODS: Conventional protocol A used one combined upper and lower impression and two CBCT scans...
September 20, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28927955/modified-hybrid-fixation-using-absorbable-plate-and-screw-for-mandibular-advancement-surgery
#2
Koichiro Ueki, Kunio Yoshizawa, Akinori Moroi, Asami Hotta, Takamitsu Tsutsui, Kenichi Fukaya, Ryota Hiraide, Akihiro Takayama, Tatsuya Tsunoda, Yuki Saito, Nana Baba, Momoko Sato
PURPOSE: The purpose of this study was to examine the skeletal stability of mandibular advancement after sagittal split ramus osteotomy (SSRO) with modified hybrid fixation using absorbable plates and screws. MATERIALS AND METHODS: A total of 54 Japanese patients were enrolled in this study. Of them, 23 who were diagnosed with mandibular prognathism underwent setback surgery with bi-cortical plate fixation using absorbable plates and screws (setback group). Another 23 who were diagnosed with mandibular retrognathism underwent advancement surgery with modified hybrid fixation using absorbable plates (advance group), and 8 who were diagnosed with mandibular retrognathism underwent advancement surgery with titanium plates (titanium group)...
August 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28927954/systematic-three-dimensional-analysis-of-wafer-based-maxillary-repositioning-procedures-in-orthognathic-surgery
#3
Timo Dreiseidler, Max-Philipp Lentzen, Matthias Zirk, Ali-Farid Safi, Joachim E Zoeller, Matthias Kreppel
PURPOSE: Little is known about the three-dimensional (3D) transfer accuracy in maxillary repositioning procedures based on conventionally manufactured dental-mounted wafers. The purpose of the present study was a systematic 3D analysis for wafer-based maxillary positioning in orthognathic surgery. MATERIALS AND METHODS: A total of 92 patients underwent Le Fort I in addition to mandibular bilateral sagittal split osteotomies (BSSO). Alignment of the pre- and postsurgical CBCT data sets allowed measuring maxillary position changes in axial, sagittal and transversal directions...
August 31, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28911792/facial-profile-and-frontal-changes-after-bimaxillary-surgery-in-patients-with-mandibular-prognathism
#4
Chun-Ming Chen, Michael Yuan-Chien Chen, Jung-Hsuan Cheng, Kwei-Jing Chen, Yu-Chuan Tseng
BACKGROUND/PURPOSE: Patients are always concerned about their postoperative appearance before surgery for facial deformity correction. The present study investigated the facial profile and frontal changes following two-jaw surgery. METHODS: Forty patients who underwent two-jaw surgery were divided by the amount of mandibular setback (group I: ≤8 mm and group II: >8 mm). Cephalometric radiograms (lateral and frontal) were collected and analyzed at three intervals: preoperatively (T1), immediately postoperatively (T2), and final follow-up (T3)...
September 11, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28894931/radiographic-evaluation-of-condylar-positioning-in-patients-undergoing-orthognathic-surgery
#5
Wanderley da Silva Félix Junior, Leandro Eduardo Klüppel, Delson João da Costa, Ângela Fernandes, Rafaela Scariot, Nelson Luis Barbosa Rebellato
OBJECTIVE: The aim of this study was to evaluate alterations in condylar positioning through submentovertex projection (Hirtz Radiographic Technique) in patients who underwent orthognathic surgery for maxillary advancement and mandibular setback with stable internal fixation. METHODS: A prospective longitudinal clinical study of 40 surgical patients presenting dentofacial deformity admitted in the Oral and Maxillofacial Surgery Department of Federal University of Paraná (UFPR) in the period between March 2013 and December 2015...
September 12, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28891406/clinical-practice-guideline-evaluation-of-the-neck-mass-in-adults
#6
Melissa A Pynnonen, M Boyd Gillespie, Benjamin Roman, Richard M Rosenfeld, David E Tunkel, Laura Bontempo, Itzhak Brook, Davoren Ann Chick, Maria Colandrea, Sandra A Finestone, Jason C Fowler, Christopher C Griffith, Zeb Henson, Corinna Levine, Vikas Mehta, Andrew Salama, Joseph Scharpf, Deborah R Shatzkes, Wendy B Stern, Jay S Youngerman, Maureen D Corrigan
Objective Neck masses are common in adults, but often the underlying etiology is not easily identifiable. While infections cause most of the neck masses in children, most persistent neck masses in adults are neoplasms. Malignant neoplasms far exceed any other etiology of adult neck mass. Importantly, an asymptomatic neck mass may be the initial or only clinically apparent manifestation of head and neck cancer, such as squamous cell carcinoma (HNSCC), lymphoma, thyroid, or salivary gland cancer. Evidence suggests that a neck mass in the adult patient should be considered malignant until proven otherwise...
September 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28888478/mandibular-coronoidectomy-could-significantly-accelerate-the-healing-process-of-infratemporal-fossa-abscess
#7
Yi-Wen Liu, Krishna Prasad Regmi, Ming-Chao Ding, Yan Li, Lei Tian, Bo-Lei Cai
PURPOSE: Management of an infratemporal fossa abscess (IFA), which is a specific form of severe and advanced deep fascial space infection (DFI), is based mainly on traditional methods. The purpose of this study was to investigate the role of mandibular coronoidectomy in accelerating IFA healing. PATIENTS AND METHODS: This research is a single-center retrospective study composed of 23 patients with IFA. The predictor variables were gender, age, diabetes, severity score, and mandibular coronoidectomy...
August 17, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28884743/three-dimensional-analysis-of-the-physiological-foramen-geometry-of-maxillary-and-mandibular-molars-by-means-of-micro-ct
#8
Thomas Gerhard Wolf, Frank Paqué, Michael Sven Patyna, Brita Willershausen, Benjamín Briseño-Marroquín
The aim of this study was to investigate the physiological foramen diameter, shape and distance between physiological and anatomical apex of maxillary and mandibular first and second molars. Accurate knowledge of the physiological foramina morphology; thus, inherent mechanical shaping technical hindrances, is decisive when taking the corresponding root canal final preparation decision. The morphological dimensions of a total of 1727 physiological foramina were investigated by means of micro-computed tomography...
September 8, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28859236/oral-appliances-for-managing-sleep-bruxism-in-adults-a-systematic-review-from-2007-to-2017
#9
REVIEW
Laurynas Jokubauskas, Aušra Baltrušaitytė, Gaivilė Pileičikienė
The review focuses on the last decade of research regarding the use of various oral appliances (OA) in the management of sleep bruxism (SB) in adults. Sixteen (N = 16) papers out of 641 identified citations involving 398 participants were included in the review. Of them, 7 were randomised controlled trials (RCTs), 7 were uncontrolled before-after studies and 2 were crossover trials. Analysis of the included articles revealed a high variability of study designs and findings. Generally, the risk of bias was low-to-unclear for RCTs and high for crossover studies, whilst the before-after studies exhibited several structural limitations...
August 31, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28858969/obstructive-sleep-apnoea-of-mild-severity-should-it-be-treated
#10
Walter T McNicholas
PURPOSE OF REVIEW: To provide guidance in the management of mild obstructive sleep apnoea syndrome (OSAS) in the context of a very high prevalence, poor correlation with symptom profile, and lack of evidence that mild OSAS significantly contributes to comorbidity or early mortality. RECENT FINDINGS: Mild obstructive sleep apnoea defined by hourly frequency of apnoeas or hypopnoeas (AHI) between 5 and 15 affects up to 35% of the general adult population but is much less prevalent when associated daytime symptoms are included...
August 30, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28853428/obstructive-sleep-apnea-syndrome-osas-evaluation-and-treatment-of-odontostomatological-problems
#11
Gaetano Ierardo, Valeria Luzzi, Antonella Polimeni
The Obstructive Sleep Apnea Syndrome (OSAS) is a breathing disorder characterized by repeated episodes of apnea/hypopnea occurring during sleep and caused by the obstruction of the upper airway. As OSAS can have a significant impact on quality of life, an early diagnosis and a multi-specialized recognition become important. Therapeutic proposals include the Mandibular Advancement Devices (MADs), intraoral devices that induce a mandibular advancement during the night to eliminate snoring and apnea. Italian guidelines on dental aspects of OSAS in adults and children focus primarily on anamnestic and clinical methods by which the dentist, in a role of epidemiological sentinel, can first identify a patient with OSAS and then participate in the therapeutic process using specific orthodontic intraoral devices...
August 28, 2017: La Medicina del Lavoro
https://www.readbyqxmd.com/read/28853427/ear-nose-and-throat-ent-aspects-of-obstructive-sleep-apnea-syndrome-osas-diagnosis-and-therapy
#12
Desiderio Passali, Maria Carla Spinosi, Francesco Maria Passali
This article analyzes the role played by the ear, nose and throat (ENT) specialist in the diagnosis and treatment of the Obstructive Sleep Apnea Syndrome (OSAS). DIAGNOSIS: The instrumental methods of investigation of otolaryngology expertise are fiberoptic rhinolaryngoscopy and sleep endoscopy. To better define and treat OSAS it is essential to define location, extension and degree of obstruction. The major limitation of rhinolaryngoscopy is that it is conducted while the patient is awake...
August 28, 2017: La Medicina del Lavoro
https://www.readbyqxmd.com/read/28845957/sleep-disorders-sleep-related-breathing-disorders
#13
Deepa Burman
Sleep-related breathing disorders or sleep-disordered breathing are characterized by abnormal respiration during sleep. They are grouped into obstructive sleep apnea (OSA), central sleep apnea, sleep-related hypoventilation, and sleep-related hypoxemia disorder. OSA is a common disorder encountered in the family medicine setting that is increasingly being recognized because of the obesity epidemic and greater public and physician awareness. OSA is characterized by recurrent episodes of partial or complete closure of the upper airway resulting in disturbed breathing during sleep...
September 2017: FP Essentials
https://www.readbyqxmd.com/read/28839421/in-vivo-evaluation-of-4-articaine-and-2-lignocaine-intraligamentary-injection-administered-with-single-tooth-anesthesia-wand
#14
Madhan Chenchugopal, Jayanthi Mungara, Nilaya Reddy Venumbaka, Arun Elangovan, Poornima Vijayakumar, Sakthivel Rajendran
BACKGROUND: The available literature confirms the effectiveness of intraligamentary injections equal to nerve blocks and articaine equal to lignocaine with better depth of penetration for single tooth pulpectomy procedures with less postoperative soft tissue trauma. An advancement in the field of local anesthesia delivery is the Single Tooth Anesthesia-Wand (STA-Wand) which is relatively pain-free and offers comfort to the child. AIMS: This study aims to evaluate and compare the anesthetic effectiveness and postoperative complications of 4% articaine and 2% lignocaine intraligamentary injection administered as single tooth anesthesia using a computer-controlled local anesthetic delivery system, the STA-Wand...
April 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28834052/incidence-of-obstructive-sleep-apnea-in-elderly-edentulous-patients-and-the-possible-correlation-of-serum-serotonin-and-apnea-hypopnea-index
#15
Arvind Tripathi, Soumyojeet Bagchi, Juhi Singh, Suryakant Tripathi, Narendra Kumar Gupta, Varun Arora
PURPOSE: To estimate the incidence of obstructive sleep apnea (OSA) in elderly edentulous patients (aged 60-65 years) and investigate a correlation of serum serotonin levels with the apnea-hypopnea index (AHI), respiratory effort-related arousal (RERA), and respiratory disturbance index (RDI). MATERIALS AND METHODS: 381 elderly completely edentulous patients (307 male, 74 female) aged 60 to 65 years with a history of edentulism of 12 to 15 months, seeking oral rehabilitation at the prosthodontic clinic at Saraswati Dental College & Hospital, Lucknow, India, between January 2014 and January 2016 were enrolled for the present study...
August 21, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28816290/-treatment-outcome-evaluation-of-different-mandibular-advancements-using-oral-appliance-to-treat-obstructive-sleep-apnea-and-hyponea-syndrome-a-systematic-review
#16
Y Y Ma, J J Zhang, X M Gao
OBJECTIVE: To evaluate the polysomnology results along with mandibular titrated advancement using oral appliance to treat obstructive sleep apnea and hyponea syndrome (OSAHS). METHODS: Several electronic databases (PubMed, Embase, Cochrane Library, CNKI, VIP, and Wanfang) were systematically searched up to September 2015. There was no restriction of language or source of information. All randomized clinical trials (RCT) and before-after trials (BAT) comparing at least two different mandibular advancements were included...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28806799/review-cpap-improves-qol-in-obstructive-sleep-apnea-effects-not-as-clear-for-mandibular-advancement-devices
#17
Fergal O'Donoghue, Christine McDonald
No abstract text is available yet for this article.
August 15, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28797674/alternative-approach-in-mandibular-reconstruction-for-benign-disease
#18
Al Haitham Al Shetawi, Rui Fernandes
In recent years, there has been a paradigm shift in mandibular reconstruction, especially for benign disease, using computer technologies to achieve improved cosmetic and functional outcomes. In this case series, the authors review their experience with computer-guided planning to achieve improved esthetics. They also review the current literature on recent advances.
July 15, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28777178/sleep-disordered-breathing
#19
Nancy R Foldvary-Schaefer, Tina E Waters
PURPOSE OF REVIEW: Sleep-disordered breathing encompasses a broad spectrum of sleep-related breathing disorders, including obstructive sleep apnea (OSA), central sleep apnea, as well as sleep-related hypoventilation and hypoxemia. Diagnostic criteria have been updated in the International Classification of Sleep Disorders, Third Edition and the American Academy of Sleep Medicine Manual for Scoring Sleep and Associated Events. Neurologic providers should have basic knowledge and skills to identify at-risk patients, as these disorders are associated with substantial morbidity, the treatment of which is largely reversible...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28770155/skeletal-stability-following-mandibular-advancement-is-it-influenced-by-the-magnitude-of-advancement-or-changes-of-the-mandibular-plane-angle
#20
Reza Tabrizi, Mahsa Nili, Ehsan Aliabadi, Fereydoun Pourdanesh
OBJECTIVES: The aim of this study was to investigate the effects of advancement magnitude and changes in mandibular plane angle on the stability of mandibular advancement. MATERIALS AND METHODS: This retrospective cohort study evaluated the postoperative stability of mandibular advancement in class II skeletal subjects who underwent bilateral sagittal split osteotomy. Radiographs taken preoperatively, immediately postoperatively and 1 year postoperatively were traced and analyzed using linear and angular measurements...
June 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
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