Divya Jose, R R (2020) Comparision of Symptomatic and Asymptomatic Periapical Lesion with Maxillary Sinus Mucosal Changes using Cone Beam Computed Tomography. Masters thesis, Rajas Dental College and Hospital, Tirunelveli.
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Abstract
BACKGROUND: The maxillary sinus is the largest paranasal sinus and is located in the body of the maxilla. The maxillary sinus lies between the nasal and oral cavity that is lined by Schneiderian Membrane (SM) which is a thin respiratory mucous membrane that adheres to the periosteum of maxillary sinus. Odontogenic sinusitis accounts for approximately 10% to 12% of maxillary sinusitis cases. This is mainly due to the close proximity of maxillary sinus to the roots of the maxillary posterior teeth. CBCT is a reliable method for evaluation of periapical pathology, periodontal bone loss and gross pathology and bony anatomy of the maxillary sinus. AIM OF THE STUDY: To compare the symptomatic and asymptomatic periapical lesions with maxillary sinus changes using CBCT. METHODOLOGY: The study consists of III groups. Group I consists of 30 normal patients who do not have any periapical diseases in the maxillary premolar and molars and who would be going for CBCT imaging for other dental treatment like implants, surgery etc. Group II consists of 30 patients, not presenting with any symptoms related to periapical pathology, however found to have clinical and/or radiological periapical pathology. Group III consists of 30 patients coming with the chief complaint of periapical diseases. The patient will be subjected to CBCT imaging. Digital images obtained will be analyzed using NewTom NNT analysis software, that provides axial, coronal, and sagittal views through multiplanar reconstructions of 0.5-mm slices .3 standardized measurements will be recorded using coronal and sagittal CBCT slices 1) The dimension of the apical lesion in the axis of the root, 2) The width of the bone above the root tip, 3) The thickness of the schneiderian membrane perpendicular to the adjacent bone. RESULTS: Kappa test was performed and the agreement was almost perfect, with a 0.98 interexaminer calibration. In coronal view diameter of the apical lesion and SM thickness were statistically significant between groups (p < 0.05) where as in coronal view the width of the apical bone is statistically insignificant. In sagittal view diameter of the apical lesion and SM thickness were statistically significant between groups (p < 0.05) where as in sagittal view the width of the apical bone is statistically insignificant. The most commonly found type of the mucosal thickness is flat type CONCLUSION: The dimension of the apical lesion in coronal sand sagittal view of CBCT is statistically significant between symptomatic and asymptomatic patients The thickness of schinederian membrane is statistically significant between symptomatic, asymptomatic periapical lesions and normal teeth This confirms the presence of periapical lesion adjacent to the maxillary sinuses was found to be a risk factor for sinus mucosal thickening. Collaboration between otolaryngologists and dentists can enable early diagnosis and treatment of odontogenic maxillary sinusitis.
| Item Type: | Thesis (Masters) |
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| Additional Information: | 241727601 |
| Uncontrolled Keywords: | Periapical Lesions, Maxillary Molars, Maxillary Sinus, Schneiderian Membrane, Cone Beam Computed Tomography. |
| Subjects: | DENTAL > Oral Medicine and Radiology |
| Depositing User: | Subramani R |
| Date Deposited: | 25 Feb 2021 14:46 |
| Last Modified: | 25 Feb 2021 14:46 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/14519 |
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