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Cast OSA appliance

Vandana Katyal, Yvonne Pamula, Cathal N Daynes, James Martin, Craig W Dreyer, Declan Kennedy, Wayne J Sampson
INTRODUCTION: The association between pediatric sleep-disordered breathing caused by upper airway obstruction and craniofacial morphology is poorly understood and contradictory. The aims of this study were to evaluate the prevalence of children at risk for sleep-disordered breathing, as identified in an orthodontic setting by validated screening questionnaires, and to examine associations with their craniofacial and upper airway morphologies. A further aim was to assess the change in quality of life related to sleep-disordered breathing for affected children undergoing rapid maxillary expansion to correct a palatal crossbite or widen a narrow maxilla...
December 2013: American Journal of Orthodontics and Dentofacial Orthopedics
Emma Palm, Karl A Franklin, Marie Marklund
PURPOSE: Obstructive sleep apnea (OSA) is a common disorder characterized by repetitive upper airway obstruction during sleep. We aimed to investigate whether mandibular tori, exostoses that appear on the lingual surface of the lower jaw, are related to OSA and the effect of an oral appliance (OA) in OSA patients. METHODS: Six hundred snoring patients with a mean age of 52 years (range 23-75 years) and a mean respiratory disturbance index (RDI) of 15 (range 0-76), who were consecutively referred for OA treatment, were included...
May 2014: Sleep & Breathing, Schlaf & Atmung
Whitney Mostafiz, Oyku Dalci, Kate Sutherland, Atul Malhotra, Vasanth Srinivasan, M Ali Darendeliler, Peter A Cistulli
BACKGROUND: Mandibular advancement splints (MASs) can effectively treat obstructive sleep apnea (OSA); however, no validated and reliable prediction method for treatment outcome currently exists. The efficacy of MAS may relate to anatomic factors, including craniofacial size and upper-airway soft-tissue volume and anatomic balance between them. We aimed to assess whether craniofacial and oral measurements are associated with MAS treatment outcome. METHODS: Dental impressions and lateral cephalometric radiographs were obtained from patients with OSA prior to commencing MAS treatment...
June 2011: Chest
Akssam Ghazal, Irmtrud E Jonas, Edmund C Rose
BACKGROUND AND OBJECTIVES: Mandibular advancement appliances are employed in treating snoring and various forms of obstructive sleep apnea syndrome (OSAS). The splints facilitate the displacement of the mandible anteriorly and widens the pharyngeal lumen during sleep. Two-splint systems are anchored on the dental arches in the maxilla and mandible. The resulting reciprocal forces are transferred onto the teeth, leading to dental side effects when used long-term. We retrospectively examined the dental changes that occurred after patients had worn the Thornton Adjustable Positioner (TAP) for over two years...
November 2008: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
Hui Chen, Alan A Lowe, Fernanda Riberiro de Almeida, Mary Wong, John A Fleetham, Bangkang Wang
INTRODUCTION: The aim of this study was to test a 3-dimensional (3D) computer-assisted dental model analysis system that uses selected landmarks to describe tooth movement during treatment with an oral appliance. METHODS: Dental casts of 70 patients diagnosed with obstructive sleep apnea and treated with oral appliances for a mean time of 7 years 4 months were evaluated with a 3D digitizer (MicroScribe-3DX, Immersion, San Jose, Calif) compatible with the Rhinoceros modeling program (version 3...
September 2008: American Journal of Orthodontics and Dentofacial Orthopedics
G Dave Singh, Mark Abramson
To determine the effects of a nasal dilation appliance on 3-D nasopharyngeal airway patency. The sample comprised 187 adults (98 males, 89 females) with a history of sleep-disordered breathing. Acoustic rhinometry readings were taken from all patients before and after the intra-oral placement of a nasal dilation appliance (OASYS). The mean left and right nasopharyngeal airways were reconstructed in 3-D, and the data from the right and left nostrils were subjected to principal components analysis (PCA) and finite-element scaling analysis (FESA)...
March 2008: Sleep & Breathing, Schlaf & Atmung
Kailin Tan, Yunhua Zhang
OBJECTIVE: To study the effect of the combined therapy on obstructive sleep apnea hypopnea syndrome (OSAHS) with radiofrequency ablation (RFA) and oral appliance (OA), and to evaluate the side effect of oral appliances. METHOD: Twenty one cases with OSAHS were selected to receive radiofrequency ablation or/and to wear oral appliance according to obstructive site. Polysomnography (PSG) was used before and after 3 months of treatment to evaluate the therapeutic effect...
August 2006: Lin Chuang Er Bi Yan Hou Ke za Zhi, Journal of Clinical Otorhinolaryngology
Marie Marklund
INTRODUCTION: Orthodontic side effects can complicate the long-term use of mandibular advancement devices (MADs) in the treatment of patients with snoring and obstructive sleep apnea. The aim of this study was to find predictors of dental side effects from monoblock MADs. METHODS: Four hundred fifty patients, who consecutively received treatment with either soft elastomeric or hard acrylic devices, were followed up after 5.4 +/- 0.8 years (mean +/- SD). The continuing patients responded to questionnaires and had dental examinations and plaster casts made...
February 2006: American Journal of Orthodontics and Dentofacial Orthopedics
Fernanda Ribeiro de Almeida, Alan A Lowe, Ryo Otsuka, Sandra Fastlicht, Maryam Farbood, Satoru Tsuiki
INTRODUCTION: Side effects observed in the occlusion and dental arches of patients using an oral appliance (OA) to treat snoring or sleep apnea for more than 5 years have not yet been investigated. METHODS: Stone casts trimmed in centric occlusion before appliance placement and after an average of 7.4 +/- 2.2 years of OA use in 70 patients were compared visually by 5 orthodontists. RESULTS: Of these patients, 14.3% had no occlusal changes, 41...
February 2006: American Journal of Orthodontics and Dentofacial Orthopedics
S P Ash, A M Smith
Snoring and sleep apnea are chronic conditions. This article describes the use of cobalt chrome mandibular advancement appliances as a long-term, robust addition to the appliances used to treat these conditions. The clinical indications, appliance design, construction stages and special features of using cast alloy bases are described.
December 2004: Journal of Orthodontics
S M Dawjee
Obstructive sleep apnoea (OSA) is a breathing abnormality that occurs during sleep. It is characterised by snoring and episodes of sleep disturbance that can occur from 10 to 500 times per night causing excessive daytime exhaustion. A large tongue and a retrognathic mandible have been listed as aetiological factors. Orthodontic appliances that have been used to manage the condition are usually complicated, uncomfortable, expensive and delicate. The aim of this clinical procedure is to design a simple, inexpensive, durable and user-friendly appliance that can be used in the management of OSA...
May 2004: SADJ: Journal of the South African Dental Association
Edmund C Rose, Richard Staats, Christian Virchow, Irmtrud E Jonas
STUDY OBJECTIVE: s: Oral appliances (OAs) are considered to be a treatment option for patients with obstructive sleep apnea/hypopnea syndrome (OSAHS). Although the effectiveness of these appliances has been evaluated in a number of clinical trials, there are few follow-up studies concerning the dental and skeletal side effects that, theoretically, could be caused by OAs. We sought to examine the long-term skeletal and occlusal effects of a nocturnally worn activator in adult patients treated for OSAHS...
September 2002: Chest
K M Fritsch, A Iseli, E W Russi, K E Bloch
Our purpose was to investigate side effects of sleep apnea treatment by removable oral appliances (OA) that advance the mandible. In 22 patients suffering from obstructive sleep apnea (OSA), questionnaire evaluations, polysomnographies, cephalographies, and dental plaster casts were obtained before initiation of treatment with OA that fully covered both dental arches. Patients were reevaluated after 3 to 12 mo (questionnaires, polysomnographies) and 12 to 30 mo (questionnaires, cephalographies, plaster casts) during continuous treatment...
September 1, 2001: American Journal of Respiratory and Critical Care Medicine
B Schönhofer, W Hochban, H J Vieregge, H Brünig, D Köhler
BACKGROUND: In the treatment of obstructive sleep apnea (OSA), mandibular advancing devices (MAD) are usually individually fabricated on plaster casts of both jaws from polymethyl-methacrylate. The potential disadvantages of these devices are (1) the costs and (2) the time required to construct the device. OBJECTIVE: In this study, the efficacy and feasibility of a cheap MAD consisting of thermoplastic material (SnorBan((R))), which can be directly moulded intraorally, were evaluated...
2000: Respiration; International Review of Thoracic Diseases
G W Cobb, E Rommerdale
Obstructive sleep apnea (OSA) is a potentially life-threatening sleep disorder that is estimated to affect 20 million Americans. OSA is characterized by repeated collapse of the upper airway during sleep, which produces breathing pauses and interruption of the sleep cycle. Symptoms include heavy snoring, many nighttime arousals, sleep deprivation, chronic fatigue and a variety of cardiovascular diseases. While many treatments are advocated for OSA, oral devices have been shown to be effective. Dental technicians and dentists may be involved in the construction of oral appliances for patients with OSA...
October 1996: Journal of Dental Technology
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