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Introduction Maxillary sinus disease is common and numerous disorders can affect this anatomical area. Abnormalities can be classified as: non-neoplastic, neoplastic benign, and neoplastic malignant.
Objective Evaluate through CT the prevalence of diseases in maxillary sinuses, using the Radiology Department's database of a hospital in São Paulo ci...
Citations
... However, it was also shown by the present study that mostly maxillary sinus pathology was present in the younger age group with male predilection, with an insignificant relationship (p > 0.001). These findings were consistent with other studies, which found no connection between age and the incidence of maxillary sinus disease [33,34]. ...
In modern dentistry, radiographic imaging is crucial for examining the connection between the maxillary sinus floor and the root apices of the maxillary posterior teeth, particularly when the periapical region is affected by pathology that could result in infectious, inflammatory, or traumatic changes in the maxillary sinus. This study aimed to investigate the prevalence of periap-ical pathologies in the maxillary posterior teeth and their relationship with maxillary sinus mucosal thickening by using cone-beam computed tomography scans. This retrospective study was conducted on 420 digitized CBCT images which were scanned in sagittal, axial, and coronal views. Out of 420 total images, 223 (53.1%) were of males and 197 (44.9%) were of females. The data were analyzed using SPSS version 28. A total of 2936 posterior maxillary teeth were tested for periapical pathology (PP), 1477 on the right side and 1459 on the left side. In terms of gender, there was no significant relationship between PP in maxillary posterior teeth on both sides and mucosal thickness of the maxillary sinus (p > 0.05). A significant relationship was found between PP in maxillary posterior teeth on both sides and maxillary sinus mucosal thickening (p < 0.05). This study concluded that the prevalence of periapical pathology in the maxillary posterior teeth was significantly associated with a rise in the incidence of maxillary sinus mucosal thickening. Moreover, the primary causative factor for the pathophysiology of the odontogenic maxillary sinus was the periapical pathology in both maxillary first molars.
... Терапевтический лекарственный мониторинг при ХПРС должен включать не только измерение концентрации лекарственного средства, но и клиническую интерпретацию результата для определения дальнейшей тактики лечения. Для разработки методов индивидуального подбора лекарственного средства требуется создание новых подходов терапевтического лекарственного мониторинга тГКС, уточнение фармакокинетики, преаналитического этапа и разработка апробационных моделей для их тестирования [3]. ...
Введение. Стратификация истинной (биологической) резистентности к тГКС и ложной (кондуктивной) является критической задачей при лечении резистентных форм хронического полипозного риносинусита (ХПРС). Достоверное определение содержания тГКС в полипозной ткани может стать объективным методом контроля терапии при ХПРС.Цель. Определить качественное и количественное содержание мометазона фуроата в полипах носа методом высокоэффективной жидкостной хроматографии (ВЭЖХ).Материалы и методы. Проведено обследование фрагментов нативных тканей 101 пациента с ХПРС, возраст пациентов от 19 до 56 лет. Средний возраст составил (37,5±9,1) года. Среди них мужчин – 53 (52,47%), женщин – 48 (47,53%). Концентрацию мометазона фуроата определяли методом ВЭЖХ диализата полипозной ткани. Диализат полипозной ткани получали методом микродиализа нативных тканей человека.Результаты. С помощью метода ВЭЖХ при ХПРС на примере мометазона фуроата достоверно подтверждено наличие мометазона в полипозной, гипертрофированной и нативной ткани пациентов.Заключение. Разработан метод терапевтического лекарственного мониторинга при ХПРС на примере мометазона фуроата и ВЭЖХ, дающий достоверную информацию о концентрации действующего вещества в полипозной ткани пациента.
Introduction. Stratification of true (biological) resistance for topical glucocorticoids from false (conductive) is an urgent task in the treatment of resistant forms of chronic rhinosinusitis with nasal polyps.Purpose. The main goal of the study is to determine the quantitative and qualitative content of topical glucocorticoids in nasal polyps.Materials and methods. 101 patients were examined, the age of patients was from 19 to 56 years. The average age was (37.5±9.1) years. Men – 53 (52.47%), women – 48 (47.53%). Mometasone concentration was determined by HPLC method of polyposis tissue dialysate. Polypous tissue dialysate was obtained by microdialysis of native human tissues.Results. Using the HPLC method in CPRS, using mometasone furoate as an example, the presence of mometasone in healthy, hypertrophied and native tissue of patients was reliably confirmed.Conclusion. Therapeutic drug monitoring method for chronic rhinosinusitis with nasal polyps using mometasone furoate and high performance liquid chromatography has been developed. Drug monitoring provides reliable information about active substance concentration in the polyposis tissue of the patient. Topical agents testing model has been created (consisting of native polyps fragments, dialysis microtubules system and dialysate collection tank with micropump). Тesting model allows new drugs pharmacodynamics and pharmacokinetics studying.
... Considering that the maxillary sinus lift procedure and use of implant has become popular, detailed understanding the maxillary sinus anatomy and its variations seems necessary (8,9). This knowledge can also help in differentiation of normal variations and pathologic lesions such as cysts, tumors, polyps, mucous retention cyst, etc. (10). The aim of this study was to investigate the prevalence and various anatomical variations of the maxillary sinus septa using CBCT images. ...
Background: Detailed understanding the anatomy and variations of maxillary sinus septa is necessary. We aimed to investigate prevalence and various anatomical variations of maxillary sinus septa using cone-beam computed tomography (CBCT) images. Material and Methods: In this retrospective cross-sectional study, CBCT scans of 809 patients referred to a specialist dental and maxillofacial radiology clinic in Babol, northern Iran, during 2014-2020 were evaluated. Location, morphology, height, and direction of septa in different planes were recorded. Results: Sinus septa were observed in 37.9% (n=307) of the participants. There were 117 cases with septa only in left sinus, 83 cases with septa only in right sinus, and 107 cases with septa in both sinuses. Totally, 414 septa were seen in the subjects. Prevalence of partial septa was considerably higher than complete septa (77.5% versus 22.5%). Regarding septa location, middle area with a prevalence rate of 58.7% was found more prevalent than other sinus areas. The mean septum height on the left and right sinuses was 6.0±3.1 mm 5.7±3.9, respectively (p<0.001). Regarding left sinus, directions of vertical (63.8%), oblique (30.8%), and straight (63.8%) were the most prevalent compared with other directions in sagittal, frontal, and axial planes, respectively. In relation to right maxillary sinus , direction of vertical in sagittal and frontal planes (72.6% and 24.2%, respectively), and direction of straight in axial plane (58.4%) were the most prevalent directions compared with others in the same planes. Conclusions: Septa prevalence in maxillary sinus was relatively high, with various directions, locations, heights, and shapes. It is recommended to use CBCT for a careful evaluation of toothless area prior to surgeries on the sinus (especially sinus lift) in three plans, in order to take careful measures and prevent postoperative complications in case septa exist.
... These abnormalities can be classified into non-neoplastic, neoplastic, congenital or acquired according to their nature (Drumond et al., 2017). ...
Objective: The aim of our work was to study the prevalence of maxillary sinus abnormalities in asymptomatic Saudi adult population using computed tomography. Materials and methods: It was retrospective study in King Khalid Hospital in Al-Kharj. It was designed to evaluate all patients who underwent brain CT scanning for any reason unrelated to maxillary sinuses abnormalities. 1442 patients underwent CT scans in past ten months from July 2020 to early May 2021 and evaluated by two examiners for identification of any abnormalities. All demographic data and radiological features related to maxillary sinuses were evaluated. Results: Retrospective CT scan analysis for incidental maxillary sinuses abnormalities revealed that about 495(34.33%) of the cases had positive findings, where the majority were males 517 (67.1% of the positive findings) while the females represented around 254 (32.9% of the positive findings). Of all these findings, the most frequently maxillary sinuses pathology found was Mucosal thickening 575 (39.88%) of all cases. Conclusions: Spread of incidental maxillary sinus abnormalities is more in the asymptomatic patients.
... The most frequent disease of the paranasal sinuses is MS, and theincidence of odontogenic MS ranges from 10 to 40% of all MS. 52 Drumond et al. 48 found the lower incidence of chronic sinusitis and chronic odontogenic sinusitis to be 7.48% and 2.29%, respectively. Yenigun et al. 8 reported the incidence of MS as 14.5%. ...
Introduction The maxillary sinus and its variations are very important to dentistry and rhinology.
Objective To investigate the effect of the accessory maxillary ostium (AMO) on the variations of adjacent structures of the maxillary sinus.
Methods The computed tomography (CT) images of 400 patients were retrospectively evaluated. The prevalence of AMO was calculated. The relationship between morphological variations of adjacent structures of maxillary sinus such as agger nasi cell (ANC), Haller cell (HC), nasal septum deviation (NSD), hypertrophy of inferior concha (HIC), pneumatization of middle concha (PMC), mucus retention cyst (MRC), mucosal thickening (MT), and maxillary sinusitis (MS), as well as the presence of AMO, were investigated.
Results Presence of AMO was diagnosed in 42 patients (10.5%), having been found in 4.5% of the patients only on the right side, in 1.25% of the patients only on the left side, and in 4.75% of the patients on both sides. There is an increasing incidence of ANC, HC, NSD, HIC, and PMC in the presence of AMO and MS. There is a decreasing incidence of MRC in the presence of AMO. Furthermore, AMO does not affect the incidence of MT.
Conclusion This study showed that most parameters, except for MRC and MT, had increasing incidence in the presence of AMO. It is important for radiologists and rhinologists to have knowledge about the location of AMO and the presence of variations of MS adjacent structures to avoid surgical complications.
... A sinus lift procedure may be required due to the lack of alveolar bone at the time of implant placement 3,4 . Conditions such as mucosal thickening of the maxillary sinus signi cantly affect the success rate and complications of implant surgery 5 . It is di cult to diagnose the disease early because the maxilla has multiple overlapping structures, so it is often discovered after disease is exacerbated 6 . ...
This study proposes a deep learning-based method for fully automatic segmentation of the maxillary sinus, including clear or hazy states, on cone-beam computed tomographic (CBCT) images.
The model, which consisted of a U-Net architecture with post-processing, was developed using 19,350 CBCT images from 90 maxillary sinuses (34 clear sinuses, 56 hazy sinuses). Post-processing was performed to improve the accuracy of the prediction results of U-Net. Model performance was evaluated compared to manual labeling by an oral radiologist.
The artificial intelligence (AI) prediction results before post-processing were DSC of 0.9071 ± 0.1842, HD of 2.6207 ± 4.9279 in clear sinuses and DSC of 0.9107 ± 0.1988, HD of 2.7812 ± 4.2835 in hazy sinuses. After post-processing, the results all improved (DSC: 0.9072 ± 0.1842, HD: 2.4057 ± 2.4496 in clear sinuses and DSC: 0.9123 ± 0.1977, HD: 1.9158 ± 2.0887 in hazy sinuses).
The proposed deep learning model showed good performance for clear and hazy maxillary sinus segmentation with minimal time and effort, and the post-processing method improved the accuracy of automatic segmentation.
... Некоторые исследования доказывают необходимость как терапии данных явлений (рассматривая это как вариант синусита), так и профилактики развития этого синдрома для предотвращения прогрессирования полипозной дегенерации слизистой [1]. С другой стороны, литературные данные свидетельствуют о «безобидности» явления, отсутствии потребности лечебных назначений, «временном» характере этих проявлений [2]. Ранее считалось, что атопические и инфекционные процессы ОНП, вызывающие ОС, имеют сезонные колебания степени тяжести/выраженности проявлений и связаны с воздействием инфекционных агентов, триггеров окружающей среды. ...
Parietal edema/edematous syndrome, appearing in isolation in the paranasal sinuses, is the most common radiographic finding. However, the transformation of the syndrome into polypous tissue, the relationship with the formation of clinical forms of rhinosinusitis are poorly understood. Objective. To reveal the relationship of edematous syndrome of the mucous membrane of the paranasal sinuses with meteorological elements (humidity, temperature, precipitation, wind speed). Describe the mechanism of the pathogenetic relationship between increased water vapor pressure and edematous syndrome of paranasal sinuses. Materials and methods. The study included 504 people who performed computed tomography in the units of Saint Petersburg City Hospital No. 40 in 2019, of which 243 were men, 261 were women. Age from 33 to 56 years old, mean age 46.45 ± 1.87. On each of the three selected days of the month, 14 patients were determined (methods of random sampling) who underwent CT of paranasal sinuses. Results. The processes of condensation in the sinuses were evaluated using a computer thermotechnical calculation. A connection was found between the edematous syndrome of the mucous membrane of the paranasal sinuses and meteorological elements (moderate correlation between relative humidity and the presence of edema, a strong correlation between the average wind speed and edema of paranasal sinuses). The mechanism of pathogenetic connection of increased water vapor pressure with edematous syndrome of paranasal sinuses is described. The main types of pathological processes were identified: film condensation with a dew point on the mucosal surface, interstitial condensation with a dew point in the thickness of tissues, and various combinations thereof.
... Radiographically, these may appear as mucosal thickening (MT) or as sinus opacification (SO) [11]. The presence of an airfluid level can also be a sign of inflammation implying acute sinus disease [12]. The cystic lesions of maxillary sinus can be retention cysts or mucoceles. ...
... Therefore, the fluid content finds a point of structural fragility on the lateral nasal wall to escape the sinus [40]. MT is associated with collection of inflammatory fluid within the maxillary sinus [41][42][43]. Many recent studies have highlighted the relationship between periapical and periodontal health of maxillary dentition, sinus floor mucosa and maxillary sinusitis [44]. ...
... Magnetic resonance imaging (MRI) was also used in one of the earlier studies for the classification of MT in the maxillary sinus [48,49]. MT has been graded by researchers either on the basis of thickening (mild/ moderate / severe, polyps, pseudocyst retention) or on the basis of numerical measurement ranges [11,43]. We used Sheiki et al's classification, which is based on measurements. ...
Background: Accessory maxillary ostium (AMO) has a major role to play in the aetiology of maxillary sinusitis. Mucosal thickening is one of the key radiographic features of chronic maxillary sinusitis. The aim of this study was to identify the location of the AMOs and investigate the association between Mucosal Thickening [MT] and AMO using Cone Beam Computed Tomography [CBCT]. Methods: CBCT scans of 400 maxillary sinuses from the records of 200 patients who seeked various dental treatments at the Thumbay Dental Hospital, Gulf Medical University, Ajman, United Arab Emirates were evaluated. The incidence, anatomical position and maximal length of accessory maxillary ostia (AMO) in the maxillary antrum were reviewed using CBCT by two examiners. The association between MTs and AMOs were also analysed. Results: Among the 200 CBCT scans, 131 belonged to male patients and 69 scans belonged to female subjects within the age group of 18-65 years (mean age 41.32 years). AMOs were found in 142 maxillary antra (35.5 %). The inter-observer reliability for using CBCT to detect AMO was (k = 0.83). There was no significant difference in the frequency of AMOs when the age (P = 0.19) and gender (P = 0.54) distribution were considered. Sinuses with AMOs, showed significantly greater frequency of MTs (p = 0.001). AMOs with maximal length of less than 1mm were most commonly observed (51.40 %). AMOs with larger greater maximal length were associated with higher degrees of MT. The location of the AMOs, were not affected by the degree of MT. Conclusions: The study demonstrates a clear association between degree of MT and occurrence of AMO in the maxillary sinus. However, the location of the AMO is independent of the degree of the MT. There is a greater probability of finding an AMO in the maxillary sinus if the MT in the sinus is more than 3 mm.
... Therefore, the fluid content finds a point of structural fragility on the lateral nasal wall to escape the sinus [40]. MT is associated with collection of inflammatory fluid within the maxillary sinus [41][42][43]. Many recent studies have highlighted the relationship between periapical and periodontal health of maxillary dentition, sinus floor mucosa and maxillary sinusitis [44]. ...
... Magnetic resonance imaging (MRI) was also used in one of the earlier studies for the classification of MT in the maxillary sinus [48,49]. MT has been graded by researchers either on the basis of thickening (mild/ moderate / severe, polyps, pseudocyst retention) or on the basis of numerical measurement ranges [11,43]. We used Sheiki et al's classification, which is based on measurements. ...
Background
Accessory maxillary ostium (AMO) has a major role to play in the aetiology of maxillary sinusitis. Mucosal thickening is one of the key radiographic features of chronic maxillary sinusitis. The aim of this study was to identify the location of the AMOs and investigate the association between Mucosal Thickening [MT] and AMO using Cone Beam Computed Tomography [CBCT].
Methods
CBCT scans of 400 maxillary sinuses from the records of 200 patients who seeked various dental treatments at the Thumbay Dental Hospital, Gulf Medical University, Ajman, United Arab Emirates were evaluated. The incidence, anatomical position and maximal length of accessory maxillary ostia (AMO) in the maxillary antrum were reviewed using CBCT by two examiners. The association between MTs and AMOs were also analysed.
Results
Among the 200 CBCT scans, 131 belonged to male patients and 69 scans belonged to female subjects within the age group of 18–65 years (mean age 41.32 years). AMOs were found in 142 maxillary antra (35.5 %). The inter-observer reliability for using CBCT to detect AMO was (k = 0.83). There was no significant difference in the frequency of AMOs when the age ( P = 0.19) and gender ( P = 0.54) distribution were considered. Sinuses with AMOs, showed significantly greater frequency of MTs ( p = 0.001). AMOs with maximal length of less than 1mm were most commonly observed (51.40 %). AMOs with larger greater maximal length were associated with higher degrees of MT. The location of the AMOs, were not affected by the degree of MT.
Conclusions
The study demonstrates a clear association between degree of MT and occurrence of AMO in the maxillary sinus. However, the location of the AMO is independent of the degree of the MT. There is a greater probability of finding an AMO in the maxillary sinus if the MT in the sinus is more than 3 mm.
