View clinical trials related to Maxillary Sinus Disease.
Filter by:A lack of bone in the posterior maxilla, mainly resulting from the combination of alveolar bone resorption after tooth loss, pneumatization of the maxillary sinus, and periodontal disease, leads to increased difficulty during dental implant treatment. The classic technique for maxillary sinus floor augmentation entails the preparation of the trap door to elevate the schneiderian membrane in the lateral sinus wall. it can be done either in a single stage with simultaneous implant placement or in two stages with delayed implant placement, depending on the available residual alveolar ridge height that necessary for implant primary stability. The new compartment created between the floor of maxillary sinus and the elevated membrane was filled with either autogenous, allografts, xenograft or combination of them to maintain space for new bone formation. The disadvantages of such methods are high costs for grafting material, time consuming and high morbidity, because harvesting of bone grafts is needed.
Before placement of the dental implant in the posterior maxilla where the maxillary sinus is pneumatized, it is necessary to elevate of the sinus mucosa from the sinus floor (sinus lift) and to provide new bone formation by using bone-forming graft materials (maxillary sinus augmentation) in the space obtained. In the bilateral maxillary posterior region with insufficient bone height with tooth deficiency, two-stage sinus lift and placement of platelet-rich fibrin prepared with titanium on one side and bovine bone graft on the other side in the implant surgery will affect the primary stability of the implant, the obtained bone histology, volume, height and density is the evaluation of its effect on it. Ten patients who required a maxillary sinus augmentation procedure for implant placement in the bilateral atrophic maxilla were included. Bio-Oss bovine bone graft was made on one side of the patients and randomly assigned to the control group, and the other side was randomly assigned to the test group using platelet-rich fibrin prepared with titanium.
The aim of this study is to compare the outcomes of endoscopic middle meatus mega-antrostomy, endoscopic pre-lacrimal recess approach and endoscopic modified medial maxillectomy regarding: 1.Assessment of the accessibility of each approach to visualize and reach the different walls and recesses of the maxillary sinus. 2. Any intraoperative or postoperative complications. 3. Any post-operative recurrence or residue detected by endoscopic examination. 4. Symptomatic relief by pre- and post-operative Sino-Nasal Outcome Test 22, Arabic translation and validation (SNOT-22) which is a reliable and valid outcome measure for CRS patients.
Missing teeth usually result in functional and cosmetic deficits. Traditionally, they have been restored with dentures or fixed bridges. However, dental implants represent an excellent alternative which rely on the maintenance of a direct structural and functional connection between living bone and implant surface, which is termed osseointergration . When sufficient bone is available in maxilla, implant rehabilitation has shown high success rates of 84-92 %. Atrophy of the alveolar crest and pneumatization of the maxillary sinus limits the quality and quantity of residual bone, therefore complicating the placement of implants in the posterior maxillary area.
AIM AND OBJECTIVES: AIM To determine the association between periodontal bone loss and maxillary sinus changes through cone beam computed tomography. OBJECTIVES Primary objectives- 1. To compare the presence of maxillary sinus changes in patients with radiographic evidence of periodontal bone loss with healthy controls. Secondary objectives- 1. To determine the correlation between severity of periodontal bone loss with the changes in maxillary sinus. 2. To compare the mean maxillary sinus mucosal thickening in patients with radiographic evidence of periodontal disease with healthy controls. MATERIALS AND METHODOLOGY: STUDY DESIGN A retrospective study will be conducted in the department of Oral Medicine and Radiology, Post Graduate Institute of Dental Sciences, Rohtak. STUDY SETTING Hospital based study - CBCT volumes which are available in the archives of Oral Medicine and Radiology department will be evaluated. STUDY PERIOD This study will be completed in 6 months. STUDY SUBJECTS CBCT volumes of patients who have undergone CBCT examination between May 2019 and December 2020 for various dental purposes will be evaluated and the volumes fulfilling the inclusion criteria will be included in the study. The subjects will be divided into 2 groups- Periodontal disease group and Healthy group, INCLUSION CRITERIA 1. Good quality images with visualization of maxillary sinus and maxillary posterior teeth of at least one side. EXCLUSION CRITERIA 1. Signs of endodontic pathology like periapical radiolucency, root canal fillings etc. 2. Presence of metal artifacts interfering with the view of the maxilla. 3. Presence of trauma or pathologies such as tumours, cysts or malignancies that obscure the view of the region of interest. SAMPLE SIZE A minimum sample size of 71 maxillary scans in each group has been calculated to expect a difference of 26.84% in the prevalence of the 2 groups as ascertained from a pilot study, at a significance level of 0.05 and a power of 90%. Since group one will further be divided into 3 classes, a sample size of 225 in each group shall be taken. METHODOLOGY - CBCT volumes of patients who have undergone CBCT for various dental purposes between May 2019 to December 2020 available in the archives of Department of Oral medicine and radiology will be evaluated. - These scans will be screened for radiographic evidence of periodontal disease i.e. horizontal or vertical bone loss and bone loss at the furcation. - Further, the periodontal bone loss scans i.e. 225 will be divided into 3 groups of 75 each: mild (<25%), moderate (25-50%) and severe (>50%) according to the amount of bone loss. - The group with no bone loss will be taken as the control group i.e. 225. - Maxillary sinuses will be evaluated according to the following criteria; score range from 0 to 6 ; 0 - no mucosal changes.,1 - area without cortical bone and with soft tissue density, thickness >3 mm, parallel to sinus bone wall,2- sinus polyp, 3-antral pseudo cyst, 4- non-specific opacification,5- periostitis,6- antrolith. DATA MANAGEMENT AND STATISTICAL ANALYSIS Data will be tabulated in Microsoft Excel sheet. The results will be expressed as the frequency (%) of maxillary and Mean + Standard deviation (SD) for maxillary sinus mucosal thickening. Normality of data will be assessed and Chi-square or student T test shall be used for non-parametric and parametric data respectively. All analysis will be performed by SPSS software version 21. A p value less than 0.05 will be considered significant for all outcomes.
To investigate the effects of concentrated growth factors applied in maxillary sinus floor elevation via a lateral window approach with simultaneous implant placement on repair of bone defects and new bone formation.