Search results for "MAXILLARY SINUS"
showing 10 items of 85 documents
Tomographic evaluation of infrazygomatic crest for orthodontic anchorage in different vertical and sagittal skeletal patterns
2020
Background Analysis of the anatomy of the region during preoperative planning is very important in order to minimize the risks of undesired movements in the supporting teeth or even damage to important structures such as the maxillary sinus. To the best of our knowledge, no study evaluated the relationship of these skeletal patterns with the anatomy of the infrazygomatic crest. The aim of this study was to evaluate the tomographic measurements of the infrazygomatic crest for placement of temporary anchorage devices in individuals with different vertical and sagittal skeletal patterns. Material and methods The measurements were analyzed in three regions in the crest of 67 patients above the …
Prevalence and characterization of maxillary sinus septa in a brazilian population
2019
Background The aim of this study was to assess the anatomic aspects of the maxillary sinus septa, by means of computed tomography images, in a Brazilian population. The results might be of clinical significance in sinus lift surgery planning. Material and methods In the study, 123 computed tomographs obtained from a private radiology clinic were used. They were analyzed by a single, trained and calibrated observer in order to evaluate the presence, quantity, localizations, dimensions, orientations and different characteristics in dentate, partially edentulous and completely edentulous individuals of the sinus septa. Results Of the individuals analyzed, 26% had a septum in the maxillary sinu…
Alternative intraoral donor sites to the chin and mandibular body-ramus.
2017
Background Provide a review of alternative intraoral donor sites to the chin and body-ramus of the mandible that bring fewer complications and that may be used to regenerate small and medium defects. Material and Methods A review was conducted using the search engine PUBMED and looking manually into scientific journals. Results From the 35 articles included, 6 corresponded to the coronoids, 3 corresponded to the zygomatic body, 5 corresponded to the anterior maxillary sinus wall, 3 corresponded to the zygomatic alveolar process, 2 corresponded to the incisive fossa, 2 corresponded to the anterior nasal spine, 2 corresponded to the palatal region, 5 corresponded to the tuberosity, and 7 corr…
Association between maxillary sinus pathology and odontogenic lesions in patients evaluated by cone beam computed tomography. A systematic review and…
2019
Background A study is made of the association between maxillary sinus pathology and odontogenic lesions in patients evaluated with cone beam computed tomography. Material and Methods A literature search was made in five databases and OpenGrey. Methodological assessment was carried out using the Newcastle-Ottawa tool for observational studies. The random-effects model was used for the meta-analysis. Results Twenty-one studies were included in the qualitative review and 6 in the meta-analysis. Most presented moderate or low risk of bias. The periodontal disease showed to be associated with the thickening of the sinus membrane (TSM). Mucous retention cysts and opacities were reported in few st…
Application of mesenchymal stem cells in bone regenerative procedures in oral implantology. A literature review
2013
Objective: The aim of this work was to review de literature about the role of mesenchymal stem cells in bone regenerative procedures in oral implantology, specifically, in the time require to promote bone regeneration. Study Design: A bibliographic search was carried out in PUBMED with a combination of different key words. Animal and human studies that assessed histomorphometrically the influence of mesenchymal stem cells on bone regeneration procedures in oral implantology surgeries were examined. Reults: - Alveolar regeneration: Different controlled histomorphometric animal studies showed that bone regeneration is faster using stem cells seeded in scaffolds than using scaffolds or platele…
Intra-oral low level laser therapy in chronic maxillary sinusitis: a new and effective recommended technique
2015
Background: Chronic sinusitis is one of the most common chronic diseases involving different age groups. Because the nature and etiology of chronic sinusitis are not completely known, there is not any standard treatment for this disease. It has been suggested that low-level laser can be used in treating chronic sinusitis but there are limited studies about its usage. In this research, intra-oral radiation of low-level laser has been described and implemented for the first time. Suggested hypotheses about the efficacy of this type of radiation (intra-oral) in treating chronic maxillary sinusitis includes this fact that the depth of maxilla’s vestibule is also the floor of maxillary sinus and…
One-year implant survival following lateral window sinus augmentation using plasma rich in growth factors (PRGF) : a retrospective study
2019
Background The aim of this study was to assess one-year implant survival after lateral window sinus augmentation using PRGF combined with various bone grafting materials. Material and Methods This was a retrospective chart review and radiographic analysis of patients that had undergone lateral window sinus augmentation with PRGF and had dental implants placed at least 6 months post augmentation. All implants included were followed up for at least one year after placement. Demographic, sinus and implant related characteristics (residual ridge height, sinus membrane perforation, type of graft material, implant length and width and ISQ at placement) were analyzed. Results A total of 31 patient…
The Surgical Management of Oroantral Communications: Recommendations for Routine Practice Combined Endoscopic and Intraoral Approach
2023
An oroantral communication (OAC) is a common complication in alveolar surgery that usually occurs as a result of the extraction of maxillary posterior teeth, which do not usually resolve spontaneously. Other causes may include trauma, maxillary cysts and tumours, and infections. The practicing oral and maxillofacial surgeon treating patients with oroantral communication (OAC)/oroantral fistulas should be familiar and competent with the various treatment options available. . In most cases, surgery is performed via a Tran’s oral approach and the fistula is closed with local flaps, but the results are often unsatisfactory. Although different procedures have proved to be successful, all are pre…
Recurrent ossifying fibroma of the maxillary sinus in an adult patient.
2013
In some aspects, the terminology of fibro-osseous lesions of the head remain equivocal. The WHO classification suggested to group cemento-ossifying fibroma and ossifying fibroma under the term "ossifying fibroma". Based on the different age of onset, localization and risk of recurrence, two types have been described: "juvenile ossifying fibroma", with early age of onset, which needs to be treated with wide surgical resection due to the high risk of recurrence; and "adult ossifying fibroma", arising in adult patients, with low recurrence rate, properly treated by conservative surgery. We describe a case of an "adult ossifying fibroma" of a 57-yearold woman with several relapses, for whom con…