The edentulous posterior maxilla poses challenges to reconstruction. Posterior forces are great, yet bone quality and quantity are diminished. There is frequent loss of bone resulting from ridge resorption as well as sinus pneumatization. There are also advantages of placing implants in the posterior maxilla compared with the anterior maxilla, such as improved hygiene, esthetics and phonetics, and biomechanical load distribution. This article will present strategies and techniques for improving implant support in the posterior maxilla through various grafting techniques.
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Unlabelled: The first maxillary molar is one of the most difficult teeth for endodontical treatment; it presents the highest failure rates due to the impossibility of locating and treating the second mesiobuccal canal (MB2). The aim of our work was study of second mesiobuccal canal in maxillary first molar and compare obtained data with literature sources for increasing the efficiency of treatment.
Materials And Methods: The study involved 59 patients with exacerbation of chronic pulpitis or chronic periodontitis who were distributed according to age: 14-20 years, 21-30 years and 31-40 years.
Jaw Growth and Development in Class II Division I Malocclusion Children Using the Myobrace® Muscle Function Appliance.
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December 2024
Department of Orthodontics, Dental Disease Prevention and Treatment Institute of Huangpu District, 200002 Shanghai, China.
Aim: Class II Division I malocclusion is common in pediatric orthodontics, and is often associated with malocclusion and poor muscle functionality. However, research on post-treatment changes in maxillomandibular dimensions, excluding normal development influences, is limited. Therefore, this study aimed to investigate the effects of Myobrace® appliance and targeted muscle functional training on maxillomandibular dimensions in children with Class II Division I malocclusion, compared to directed oral muscle training alone.
View Article and Find Full Text PDFAge-dependent effects of Delaire facemask therapy for class III malocclusion : Impact on maxillary sutures and palatal morphology.
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Department of Orthodontics, Saarland University, 66424, Homburg/Saar, Germany.
Background And Aim: Treatment effects of a combined rapid maxillary expansion (RME) and Delaire facemask (DFM) therapy have so far only been scientifically investigated through cephalometric analyses. The combination of cephalometric, dental cast and cone-beam computed tomography (CBCT) scan analysis was not yet used for investigating morphologic changes of the tooth-bearing palate. The aim of the present study was to determine whether patient age at treatment begin has an influence upon palatal length changes after RME/DFM therapy, and to what extent transverse palatal sutures contribute to these.
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J Oral Maxillofac Surg
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Professor, Faculty of Dentistry of Bauru, Department of Surgery, Stomatology, Pathology and Radiology, University of São Paulo, Bauru, São Paulo, Brazil; Professor, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru, São Paulo, Brazil.
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Descriptions of two new dark-body snake eels of the genus (Anguilliformes, Ophichthidae) from Taiwan.
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December 2024
Institute of Marine Biology, National Taiwan Ocean University, Keelung 202, Taiwan National Taiwan Ocean University Keelung Taiwan.
Two new species of dark-body snake eels are described based on specimens collected from Taiwan. has a long tail; dorsal-fin origin above posterior third of pectoral fin; tip of lower jaw anterior to anterior-nostril tube; two simple, pointed protrusions along upper lip; preoperculomandibular pores 6 or 7 + 3; teeth on jaws and vomer mostly uniserial, except for biserial on posterior portion of maxilla and anterior portion of symphysis of dentary; vertebral formula 12-55-153 and median fins with narrow dark margins, except the pale fin origins. has a dorsal-fin origin well behind gill opening; mainly 4 rows of teeth on jaws; no protrusions along upper lip; a smaller head; mean vertebral formula 24-64-163 and pale median fins.
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