scholarly journals A study on maxillary sinus dimensions by computed tomography in population of Tamil Nadu

2016 ◽  
Vol 05 (02) ◽  
pp. 091-096
Author(s):  
N Muthukumaravel ◽  
K.Y Manjunath
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Tamil Nadu ◽  
Maximum Width ◽  
Average Width ◽  
Computed Tomographic ◽  
Significant Difference ◽  
The Difference ◽  
The Right ◽  
Maxillary Sinuses

Abstract Background and aims: Maxillary sinuses are the largest of the paranasal sinuses known for variability in their dimensions. The maxillary sinus dimensions can be better ascertained in living by using computed tomography instead of plain radiography. This study was planned for highlighting the variations in the dimensions of the maxillary sinuses of population of Tamil Nadu region. The aims of the present study were to estimate dimensions of the maxillary sinuses on computed tomographic (CT) scan of the head of patients from Tamil Nadu and to compare the data gender wise and sidewise. Material and methods: Maximum width, height and depth of maxillary sinus of both sides were measured in CT - head images of 100 males and 100 females of 20-50 years of age in Tamil Nadu. Comparison of data between genders and sides by applying unpaired student "t" test was done. Results : The mean depth, height and width of both right and left maxillary sinuses were comparatively less in females than the males and the difference was found to be statistically significant ( P <.0001). On comparison between the sides of maxillary sinuses, the depth and the height of maxillary sinus did not show any significant difference in the measurements (p >.05), whereas the width of the left side (23.96 mm) was higher than that of the right side (23.69) and the difference was found to be statistically significant (P<.05). The combined average maxillary sinus dimensions (in mm) for both genders in the study population of Tamil Nadu are as follows: Right side depth: 33.71 ± 1.00; Left side depth : 33.65 ± 1.22; Right side height: 34.66 ± 2.71; Left side height: 34.74± 2.48; Right side width: 23.69 ± 0.78 and Left side width: 23.96 ± 0.86. Conclusion: The dimensions of maxillary sinuses in males were found to be larger than those of females and this difference was statistically significant. The average width of the maxillary sinuses on the left side is significantly more than that of right sided sinuses. Computed tomography measurements of maxillary sinuses may be useful in gender determination.

scholarly journals Gender differences in the maxillary sinus volume : a study using computed tomography scans of a sample of Tamil Nadu population

2016 ◽  
Vol 05 (03) ◽  
pp. 138-142
Author(s):  
N Muthukumaravel ◽  
K. Y. Manjunath
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Tamil Nadu ◽  
Ct Images ◽  
Ct Scans ◽  
P Value ◽  
Gender Determination ◽  
Maxillary Sinus Volume ◽  
Significant Difference ◽  
Maxillary Sinuses

Abstract Background and aims : Measurements of the maxillary sinus volumes in computed tomography (CT) scans can be used for determination of gender when other methods are inconclusive. Maxillary sinus dimension measurements are valuable in studying sexual dimorphism and can assist in gender determination. The radiographic images can provide adequate measurements for maxillary sinuses that cannot be approached by other means. The purpose of the present study was to determine and compare the volume of the maxillary sinus between males and females of Tamil Nadu region using CT scans. Materials and methods : This study was carried out by using CT images of head region of 100 males and 100 females who underwent CT scanning for indications other than the pathology of the maxillary sinuses. The CT images obtained were of patients between 20 to 50 years of age. The maxillary sinus volume of each side were calculated by using the following formula: Maximal width X Maximal height X Maximal depth X 0.5. Comparison of data between genders and sides was done. The statistical inference was derived by applying unpaired student "t" test and the p value was obtained (p value <.05 was considered statistical significant). Results: Oncomparison of males with females, the mean volumes of maxillary sinuses on each side (left and right) had shown a statistically significant difference (p<.OOOl ). The maxillary sinus volumes of the males were found to be significantly higher than that of the females. Among males, the average mean volume of maxillary sinuses (right + left) is 15.15 ± 0.45 cm3. Among females, the average mean volume of maxillary sinuses (right + left) is 12.77 ± 1.34 em' which is significantly lesser than that of the males. Conclusion : It can be concluded that the volumes of the maxillary sinuses of males are larger than those of the females and this difference is statistically significant. Maxillary sinus dimension measurements can assist in gender determination.

Analysis of the linear geometric values of the maxillary sinuses in adults, and their gender differences

2020 ◽  
Vol 26 (4) ◽  
pp. 21-28
Author(s):  
M.B. Cherkes ◽  
◽  
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Geometric Parameters ◽  
Cone Beam ◽  
Maximum Height ◽  
Maximum Width ◽  
Average Maximum ◽  
Left Maxillary Sinus ◽  
The Right ◽  
Maxillary Sinuses

Aim. To formulate general data about the linear geometric parameters of the maxillary sinuses using cone-beam computed tomography, and to determine possible gender influence on these indicators. Material and Methods. Primary examination group of 270 females and 230 males. After the initial examination, a group of patients with normal maxillary sinuses' variants was selected, which included 102 individuals (55 women and 47 men) aged 21-65 years with normally developed maxillary sinuses, without any pathology that would affect their size. The main method of research was cone-beam tomography performed on the Point 3DCombi 500, which allowed to determine two indicators: the maximum height and width of the maxillary sinuses. Investigations were performed in two planes: horizontal and frontal. Analysis of the data obtained during the computed tomography examination of the study group allowed to divide all subjects by gender - men and women. Results and Discussion. As a result of determining the geometric parameters of the maxillary sinuses in the horizontal and frontal planes on the processed computed tomograms, it was found that the width of the left maxillary sinus varied in a wide range from 21.1 mm to 39.4 mm, with the average of 31.16±0.76 mm. The width of the right maxillary sinus varied from 21.5 mm to 41.9 mm, with the average of 31.05±0.71 mm. The height indicators of the left maxillary sinus ranged from 23.6 mm to 50.8 mm, with the average values of 36.1±0.95 mm. The height of the right maxillary sinus ranged from 23.6 mm to 53.1 mm, with the average value of 36.73±1.01 mm. Analyzing the CT scans in the three dimensions, we determined the average geometric values of the left and right maxillary sinuses, respectively, by gender. Using Student's parameter and calculating the for the study, we were able to discover that gender unambiguously affected the geometric dimensions of the maxillary sinuses, namely, the width and depth of the sinuses. In all analyzed computed tomograms it could be clearly observed that both the width and depth of the maxillary sinus in men were much higher than in women. It was found that the average maximum width of the left maxillary sinus in women was 30.5±1.03 mm. and the right - 30.2±1.00 mm, while the maximum width of the left maxillary sinus in men was 31.93±1.14 mm, and the right maxillary sinus - 32.04±0.98 mm. As for the average values of the maximum height of the left maxillary sinus in women, it was 34.28±1.25 mm and the right maxillary sinus - 34.63±1.21 mm. In men, the average maximum height of the left maxillary sinus was 38.33±1.24 mm, and the right maxillary sinus - 39.26±1.45 mm. At the final stage of the study, we also determined whether the side ("right" / "left") affects the geometric dimensions of the maxillary sinuses. Based on the data from cone-beam computed tomography carried out in all cases, we can state that the geometric dimensions are not affected by the maxillary sinus side. Conclusions. The geometric features have been identified that are important for diagnosing the condition of the maxillary sinuses. The indicators of the maxillary sinus' width average within 31.1±0.73 mm. The height of the maxillary sinus averages within 36.4±0.98 mm. Gender comparison of individual maxillary sinuses' linear geometric parameters revealed that in all age groups, both width and depth in men were much higher than in women. The average maxillary sinuses' width in women ranged within 30.3±1.01 mm, and height - within 34.45±1.23 mm. In men, the average width of the maxillary sinuses ranged within 31.98±1.06 mm and height - within. 38.79±1.34 mm. It was established that the geometric dimensions of the maxillary sinuses were not affected by their left or right location. Only intravital research methods allow us to draw a number of conclusions about the size of the maxillary sinuses, taking into account such a structure as the mucous membrane, which impossible to perform on autopsied material. Key words: maxillary sinuses, computed tomography, linear values, adults, gender

scholarly journals Analysis of maxillary sinus septa by cone-beam computed tomography

2019 ◽  
Vol 48 ◽  
Author(s):  
Camila Furtado de SOUZA ◽  
Adriano de Oliveira LOURES ◽  
Daniella Guedes de Figueiredo LOPES ◽  
Karina Lopes DEVITO
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Cone Beam Computed Tomography ◽  
Anatomical Variations ◽  
Relevant Information ◽  
Cone Beam ◽  
Internal Space ◽  
Significant Difference ◽  
Membrane Perforation ◽  
The Right

Abstract Introduction Pneumatization of the maxillary sinus may make it impossible to insert implants directly in the posterior region of the maxilla, and in these cases, the solution is to submit the patient to maxillary sinus floor augmentation surgery. The most common complication of this surgery is sinus membrane perforation. Anatomical variations of the internal space of the sinus, such as the bone septa, may further hamper detachment of this membrane. Objective To evaluate the prevalence and characteristics of sinus septa in patients from the Zona da Mata Mineira (Minas Gerais, Brazil), to offer relevant information for a safer planning of surgeries involving this region. Material and method A total of 120 patients (240 sinuses) were analyzed using cone-beam computed tomography (CBCT) images, verifying the presence of sinus septa and classifying them for size and anteroposterior location. Result Of the 120 patients analyzed, 45 (37.50%) had sinus septa, 66 septa in total. Of these, 33 (50%) were present in the middle region of the maxillary sinus and the mean septum size was 7.23 mm. There was no significant difference in the septum size between the genders or between the right and left sides. Conclusion The high rates of incidence of sinus septa justify their study, which should be based mainly on accurate exams, such as CBCT, since they represent one of the most relevant anatomical variations for the cases of sinus surgeries.

scholarly journals Evaluation of the antral pseudocysts and maxillary sinus septas by using cone-beam computed tomography

2020 ◽  
Vol 10 (2) ◽  
pp. 30-35
Author(s):  
Mustafa Yalçın ◽  
Nihat Laçin
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Chi Square ◽  
Significant Difference ◽  
Native Speakers Of English ◽  
Left Maxillary Sinus ◽  
The Right ◽  
The Relationship

Purpose: The aim of this study was to evaluate the prevalence of antral pseudocysts(AP), maxillary sinus septas(MSS) and the relationship between AP and MSS by using cone-beam computed tomography(CBCT).Methodology: The CBCT scans of 466 patients (237 male, 229 female ranging in age between 13 and 83) were included in our study. The presence or absence of AP and MSS were confirmed at axial, sagittal, and coronal sections of CBCT images by considering gender and localization. For statistical analysis, Pearson chi-square and Spearman correlation tests were used.Results: One hundred-ninety eight out of 466 (42.49%) patients had AP in the right and left maxillary sinus. There was a significant difference in the prevalence of AP between men and women (p≤0.001). The prevalence of AP was higher in men than in women. Twenty-eight out of 237 patients in men(11.81%) and 35 out of 229 patients in women(15.28%) had MSS in the right and left maxillary sinus. Conclusion: The prevalence of AP and MSS was 42.49% and 13.52%, respectively and the prevalence of MSS was lower in our study than other studies. We did not determine the relationship between AP and MSS in the maxillary sinuses.   How to cite this article: Yalçın M, Laçin N. Evaluation of the antral pseudocysts and maxillary sinus septas by using cone-beam computed tomography. Int Dent Res 2020;10(2):30-35. https://doi.org/10.5577/intdentres.2020.vol10.no2.1   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Evaluating Endoscopic Ipsilateral Endonasal Corridor Approaches to the Anterolateral Wall of the Maxillary Sinus: A Computerized Tomography Study

2021 ◽  
Author(s):  
Navarat Vatcharayothin ◽  
Pornthep Kasemsiri ◽  
Sanguansak Thanaviratananich ◽  
Cattleya Thongrong
Keyword(s):  
Confidence Interval ◽  
Maxillary Sinus ◽  
Inferior Turbinate ◽  
Radial Access ◽  
Sinus Wall ◽  
Nasal Floor ◽  
Significant Difference ◽  
Anterolateral Wall ◽  
The Mean ◽  
Maxillary Sinuses

Abstract Introduction The endoscopic access to lesions in the anterolateral wall of the maxillary sinus is a challenging issue; therefore, the evaluation of access should be performed. Objective To assess the accessibility of three endoscopic ipsilateral endonasal corridors. Methods Three corridors were created in each of the 30 maxillary sinuses from 19 head cadavers. Accessing the anterolateral wall of the maxillary sinus was documented with a straight stereotactic navigator probe at the level of the nasal floor and of the axilla of the inferior turbinate. Results At level of the nasal floor, the prelacrimal approach, the modified endoscopic Denker approach, and the endoscopic Denker approach allowed mean radial access to the anterolateral maxillary sinus wall of 42.6 ± 7.3 (95% confidence interval [CI]: 39.9–45.3), 56.0 ± 6.1 (95%CI: 53.7–58.3), and 60.1 ± 6.2 (95%CI: 57.8–62.4), respectively. Furthermore, these approaches provided more lateral access to the maxillary sinus at the level of the axilla of the inferior turbinate, with mean radial access of 45.8 ± 6.9 (95%CI: 43.3–48.4) for the prelacrimal approach, 59.8 ± 4.7 (95% CI:58.1–61.6) for the modified endoscopic Denker approach, and 63.6 ± 5.5 (95%CI: 61.6–65.7) for the endoscopic Denker approach. The mean radial access in each corridor, either at the level of the nasal floor or the axilla of the inferior turbinate, showed a statistically significant difference in all comparison approaches (p < 0.05). Conclusions The prelacrimal approach provided a narrow radial access, which allows access to anteromedial lesions of the maxillary sinus, whereas the modified endoscopic Denker and the endoscopic Denker approaches provided more lateral radial access and improved operational feasibility on far anterolateral maxillary sinus lesions.

scholarly journals Association between Odontogenic and Maxillary Sinus Conditions: A Retrospective Cone-Beam Computed Tomographic Study

2021 ◽  
Vol 10 (13) ◽  
pp. 2849
Author(s):  
Piotr Kuligowski ◽  
Aleksandra Jaroń ◽  
Olga Preuss ◽  
Ewa Gabrysz-Trybek ◽  
Joanna Bladowska ◽  
...  
Keyword(s):  
Bone Loss ◽  
Maxillary Sinus ◽  
Mucous Membrane ◽  
Maxillary Sinusitis ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Odontogenic Infections ◽  
Computed Tomographic ◽  
Periodontal Bone Loss ◽  
Maxillary Sinuses

Odontogenic infections can directly trigger maxillary sinusitis. CBCT is an excellent choice for precise examination of maxillary sinuses and hard tissues within the oral cavity. The objective of this retrospective and the cross-sectional study was to analyze the influence of odontogenic conditions on the presence and intensity of maxillary sinus mucous membrane thickening using CBCT imaging. Moreover, periodontal bone loss and anatomic relationship between adjacent teeth and maxillary sinuses were assessed to evaluate its possible impact on creating maxillary thickening. The study sample consisted of 200 maxillary sinuses of 100 patients visible on CBCT examination with a field of view of 13 × 15 cm. The presented study revealed a significant influence of periapical lesions, inappropriate endodontic treatment, severe caries, and extracted teeth on the presence of increased thickening of maxillary sinus mucous membrane. In addition, an increase in the distance between root apices and maxillary sinus floor triggered a significant reduction of maxillary sinus mucous membrane thickening. The presence of periodontal bone loss significantly increases maxillary sinus mucous membrane thickening.

scholarly journals Intrusion of maxillary molar roots into the maxillary sinus in a sample of the Egyptian population using cone beam computed tomography

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Esraa Ahmed Eid ◽  
Fatma Mostafa El-Badawy ◽  
Walaa Mohamed Hamed
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Cone Beam Computed Tomography ◽  
Third Molar ◽  
Cone Beam ◽  
Egyptian Population ◽  
Maxillary Molar ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
The Right

Abstract Background The proximity of the maxillary sinus floor to the maxillary molar roots increases the probability of oroantral communication on conducting any surgical or endodontic procedure in the involved area. The aim of this study is to evaluate the relationship between each maxillary molar root and maxillary sinus floor using cone beam computed tomography. Predicting the probability of protrusion of each root into the sinus will consequently predict the probability of occurrence of the oroantral fistula in a sample of the Egyptian population. Results The total number of roots located outside the sinus was 121 (35.3%), while those contacting the sinus floor were 80 (23.3%) and those intruded the sinus were 141 (41.2%). The percentage of root intrusion into the sinus in males (56.9%) was significantly (p = 0.01) higher than females (42.9%). The probability of root intrusion in the left molars (54.2%) was non-significantly (p = 0.067) higher than that of the right side (44.3%). As for the type of tooth, the second molar showed the highest probability of root intrusion into the sinus (55.3%) followed by the third molars (52.6%) then the first molars (40.9). According to the type of root, the mesiobuccal root showed the highest probability of intrusion into the sinus (50.9%) followed by the palatal root (49.1%) then the distobuccal root (47.4%). However, the difference in both type of tooth and type of root was statistically non-significant (p = 0.051 and 0.869 respectively). As for the individual root with the highest probability of intrusion, the mesio-buccal root of the right third molar is the most frequent root to intrude the sinus (71.4%) and the mesio-buccal root of the right first molar is the least frequent (22.7%). Conclusions In a sample of the Egyptian population, males exhibit higher probability of root protrusion into the sinus than females. The side and type of tooth are of higher impact on the probability of its intrusion into the sinus compared to the type of root. Left second molars are at a higher risk of oroantral communications on surgical or endodontic procedures compared to other molars due to its highest probability of intrusion into the sinus.

A volumetric three-dimensional evaluation of invasiveness of an endoscopic and microscopic approach for transmeatal visualisation of the middle ear

2021 ◽  
pp. 1-5
Author(s):  
A H A Baazil ◽  
J G G Dobbe ◽  
E van Spronsen ◽  
F A Ebbens ◽  
F G Dikkers ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Middle Ear ◽  
Three Dimensional ◽  
Endoscopic Approach ◽  
Microscopic Approach ◽  
Significant Difference ◽  
Computed Tomography Scans ◽  
The Difference ◽  
Group 2 ◽  
Group 1

Abstract Objective This study aimed to compare the necessary scutum defect for transmeatal visualisation of middle-ear landmarks between an endoscopic and microscopic approach. Method Human cadaveric heads were used. In group 1, middle-ear landmarks were visualised by endoscope (group 1 endoscopic approach) and subsequently by microscope (group 1 microscopic approach following endoscopy). In group 2, landmarks were visualised solely microscopically (group 2 microscopic approach). The amount of resected bone was evaluated via computed tomography scans. Results In the group 1 endoscopic approach, a median of 6.84 mm3 bone was resected. No statistically significant difference (Mann–Whitney U test, p = 0.163, U = 49.000) was found between the group 1 microscopic approach following endoscopy (median 17.84 mm3) and the group 2 microscopic approach (median 20.08 mm3), so these were combined. The difference between the group 1 endoscopic approach and the group 1 microscopic approach following endoscopy plus group 2 microscopic approach (median 18.16 mm3) was statistically significant (Mann–Whitney U test, p < 0.001, U = 18.000). Conclusion This study showed that endoscopic transmeatal visualisation of middle-ear landmarks preserves more of the bony scutum than a microscopic transmeatal approach.

scholarly journals Radiographic and computed tomographic assessment of the development of the antebrachia and elbow joints in Labrador Retrievers with and without medial coronoid disease

2015 ◽  
Vol 28 (03) ◽  
pp. 186-192 ◽  
Author(s):  
H. A. W. Hazewinkel ◽  
G. Voorhout ◽  
S. F. Lau
Keyword(s):  
Computed Tomography ◽  
Growth Stage ◽  
Length Ratio ◽  
Active Growth ◽  
Computed Tomographic ◽  
Significant Difference ◽  
Secondary Ossification Centres ◽  
A Prospective Study ◽  
Joint Congruence ◽  
Labrador Retrievers

SummaryObjectives: To compare the development, monitored by radiography and computed tomography, of the antebrachia and elbow joints in seven Labrador Retrievers with healthy elbow joints and in seven Labrador Retrievers that developed medial coronoid disease (MCD), in order to determine whether disturbances in the development of the antebrachia and elbow joints, between the age of six and 17 weeks may lead to medial coronoid disease.Methods: A prospective study of 14 Labrador Retrievers in their active growth stage was performed. The development of the antebrachia and elbow joints was assessed between six and 17 weeks of age using radio graphy and computed tomography determining the development of secondary ossification centres, radioulnar length ratio, radial angulation, and inter-relationship between the humerus, ulna and radius.Results: For the parameters of ossification of secondary ossification centres, radioulnar length ratio, radial angulation, and joint congruence evaluation, there was no significant difference in the development of the ante-brachia and elbow joints of seven Labrador Retrievers positive and seven Labrador Retrievers negative for MCD at the age of six to 17 weeks.Clinical significance: These findings demonstrate that the development of MCD in the Labrador Retrievers in our study was not related to any disturbance in the development of the antebrachia and elbow joints during the rapid growth phase.

scholarly journals Difference in height of maxillary alveolar ridge on edentulous women and dentate women using panoramic radiography

2019 ◽  
Vol 10 (2) ◽  
pp. 1243-1248
Author(s):  
Cek Dara Manja ◽  
Dennis
Keyword(s):  
Panoramic Radiography ◽  
Total Sample ◽  
Mechanical Stimulus ◽  
Average Height ◽  
Alveolar Ridge ◽  
Cross Sectional ◽  
Average Value ◽  
Significant Difference ◽  
The Difference ◽  
The Right

The height of the maxillary alveolar ridge can be measured using panoramic radiography. The decline occurred because the height of the alveolar ridge undergoes slow physiological resorption due to the absence of mechanical stimulus. The purpose of this research is to know the difference and the average height of the maxillary alveolar ridge in edentulous and dentate women using panoramic radiography. This study is an analytical method with a cross-sectional approach. A total sample of 40 women, edentulous and dentate has been measured. Measurements were made by measuring the distance between the lowest point of the infraorbital ridge and alveolar crest maxilla on the incisor point, right and left premolar, right and left molar. A statistical test is done using independent t-test. The results showed that the average value of a dentate women sample is greater than edentulous. The average value obtained by the dentate sample is greatest in incisor point by 37,57mm± 3,34mm and the smallest at the right molar point by 33,87mm ± 2,81mm. The average value obtained by the edentulous sample is greatest in incisor point by 35,30mm ± 2,79mm and the smallest at the right molar point by 31,84mm ± 3,85mm. It can be concluded that there is a significant difference in the height of the maxillary alveolar ridge on an edentulous sample and dentate, except the right molar teeth. The average height of the maxillary alveolar ridge in an edentulous sample is 33,35mm ± 3,43mm, and the dentate sample is 35,66mm ± 3,21mm.

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