Sinus Volume Research Articles

Sex Determination Using Human Sphenoid Sinus in a Northeast Iranian Population: A Discriminant Function Analysis.

Sex determination, using skeletal remains, is of paramount importance in forensic studies. The skull accounts for the most sexual dimorphism after the pelvis. Recent studies have shown that paranasal sinuses are valuable in sex determination and considering the location of the sphenoid sinus, the risk of traumatic injuries to this structure is low. The present study aimed to evaluate the morphology of the sphenoid sinus and determine the validity of sphenoid sinus volume (SSV) in sex determination using cone beam computed tomography (CBCT) images. In this cross-sectional retrospective study, CBCT images of 469 Iranian patients (186 male and 283 female), aged 24-45 years, were selected. The morphology of the sphenoid sinus was recorded. 3D Slicer software (4.10.0) was used to assess SSVs in coronal and axial planes. For data analysis, t-test, chi-square test, and discriminant function analysis (DFA) were performed using predictive analytics software (ver. 18.0). The most common morphology of the sphenoid sinus in both genders was the sellar type (50.5%). SSV was significantly larger in males than in females (p< 0.001). DFA showed that the capability of SSV in sex identification was 86.0% and 92.9% in males and females, respectively. The findings of this study suggest that SSV is a reliable variable in gender discrimination in a northeast Iranian population. However, since the morphology of the sphenoid sinus and sex were independent of each other, the morphology of the sphenoid sinus is not a suitable indicator for sex determination.

Evaluation of changes in the maxillary sinus of orthodontic patients with maxillary molar distalization using cone-beam computed tomography

This study aimed to evaluate the possible effects of maxillary molar distalization on maxillary sinus mucosa thickness and sinus volume in 3-dimensions. The study was conducted with 46 patients: 73.9% (n= 34) females and 26.1% (n= 12) males. The patients had a mean age of 27.89 ± 6.62 years, ranging from 18 to 45 years. The study included patients who were admitted to the Faculty of Dentistry at Van Yüzüncü Yıl University between 2010 and 2021 and underwent cone-beam computed tomography (CBCT) before and after orthodontic treatment for various reasons. The CBCT scans of patients were divided into 2 groups: the first group underwent orthodontic treatment and maxillary molar distalization with Class II elastic, whereas the second group consisted of patients who did not get orthodontic treatment (control). In CBCTs, sinus mucosa thickness was measured on the anterior, posterior, medial, lateral, superior, and inferior walls of the maxillary right and left sinuses. Three-dimensional volume calculations were made using CBCT images taken before and after the treatment of both orthodontic treatment patients and control patients. Statistical significance was set at P<0.05. The orthodontic treatment group had a mean distalization of 2.86 ± 0.27 mm. The mean distalization time was 8.01 ± 0.64 months. When the differences between the pretreatment and posttreatment CBCT scans were examined in terms of sinus mucosa thickness in the anterior, posterior, medial, lateral, and superior walls of the right and left sinuses, there was no statistically significant difference between treatment and control groups (P>0.05). The change in sinus mucosa thickness in the right and left sinus inferior wall from T1 to T2 was significantly higher in the control group than treatment group (P<0.05). In addition, the increase in maxillary sinus volume was statistically significantly higher in the treatment group than in the control group (P<0.05). We observed that maxillary molar distalization caused an increase in maxillary sinus volume. The change in sinus mucosa thickness in the right and left sinus inferior wall was lower in the maxillary molar distalization group.

Is There a Coexistence Between Smaller Maxillary and Frontal Sinus Volume and Narrow Internal Nasal Valve Angle? Three-Dimensional Computed Tomography Assessment

Is There a Coexistence Between Smaller Maxillary and Frontal Sinus Volume and Narrow Internal Nasal Valve Angle? Three-Dimensional Computed Tomography Assessment

Maxillary sinus volume and mucosal thickening according to the septal deviation angle and age of the children.

We examined the relationship between nasal septal deviation (SD) angle and maxillary sinus volumes by examining the paranasal sinus computed tomography (PNSCT) images in children. In this retrospective study, PNSCT images of 106 children with one-sided nasal SD were included. According to the SD angle, two groups were identified: Group 1 (n = 54): SD angle ≤ 11°, Group 2 (n = 52): SD angle > 11°. There were 23 children between 9 and 14 years and 83 children between 15 and 17 years. Maxillary sinus volume and mucosal thickening were evaluated. In 15- to 17-year age group, maxillary sinus volumes of males were higher than females bilaterally. For each of the males and females, ipsilateral maxillary sinus volume was significantly lower than the contralateral side in all children and in 15- to 17-year age group. In each of the SD angle values (≤11 or >11) separately, ipsilateral maxillary sinus volume was lower; and in the SD angle > 11° group, maxillary sinus mucosal thickening values were higher than those of the contralateral side. In young children in 9- to 14-year age group, bilateral maxillary sinus volumes decreased, in this group maxillary sinus volume was not affected according to the SD. However, in 15- to 17-year age groups, maxillary sinus volume was lower on the ipsilateral SD side; and ipsilateral and contralateral maxillary sinus volumes of the males were significantly higher than those in the females. SD should be treated at an appropriate time to prevent SD-related maxillary sinus volume shrinkage and rhinosinusitis.

Rapid maxillary expansion treatment increases mid-facial depth in early mixed dentition.

To evaluate the effects of rapid maxillary expansion (RME) on mid-facial depth in early mixed dentition and to investigate the relationship between change in mid-facial depth and maxillary sinus and nasal cavity. A total of 35 patients with mixed dentition treated with a Haas expander were included in this retrospective study. All patients underwent a cone-beam computed tomography scan before and after rapid maxillary expansion. The Wilcoxon signed-rank test was performed to evaluate the changes in maxillary width, facial depth, maxillary sinus, and nasal cavity volume before and after expansion. Multiple linear regression analysis was applied to evaluate the correlations among them. The hard and soft tissue facial depth in the middle third increased significantly (P < 0.001). The gain on the outer sagittal plane (1.04-1.52 mm) was slightly bigger than that on the inner sagittal plane (0.91-1.30 mm). Maxillary width and nasal cavity width increased 3.42 ± 0.93 mm (P < 0.001) and 2.25 ± 0.77 mm (P < 0.001), respectively, after treatment. A gain was also achieved in both nasal cavity volume (2,236.15 mm3, P < 0.001) and maxillary sinus volume (1,227.33 mm3, P < 0.001). Multiple linear regression analysis showed that with the increase in maxillary sinus volume, the facial depth increased as well (B = 0.455-0.683, P < 0.05). Also, statistically significant correlations were found between nasal width and nasal cavity volume (B = 0.384, P < 0.05). The depth of the middle third face increased significantly. The facial depth increase was related to the enlargement of maxillary sinus volume, while the nasal cavity volume gain was related to the nasal width increase. This indicated that RME might enhance the fullness of the mid-face and facilitate the patency of nose breathing.

Volumetric Analysis of the Sinus and Orbit in Silent Sinus Syndrome After Endoscopic Sinus Surgery.

The term "silent sinus syndrome" (SSS) describes spontaneous enophthalmos secondary to subclinical maxillary sinus atelectasis. Debate remains on whether treatment with endoscopic maxillary antrostomy alone is adequate in reversing atelectasis and globe displacement. This study aims to determine the degree of volume change of the diseased sinus and orbit as well as the change in orbital height in patients treated with endoscopic antrostomy without orbital floor augmentation. Retrospective review with image analysis. Single tertiary care institution. Three-dimensional (3D) analysis of computed tomographic imaging data was performed using 3D Slicer. 3D models of the maxillary sinus and orbit of the diseased and normal sides were created, and volume measurements were calculated using the segmentation program. Thirteen patients with SSS who underwent endoscopic sinus surgery (ESS) and had follow-up computed tomographic imaging were analyzed. After endoscopic antrostomy, the mean volume of the diseased maxillary sinus significantly increased by 9.82%, from 6.37to 7.00 cm3 (p = .0302). There was no significant change in mean orbital volume; however, the mean orbital height decreased by 5.67%, from 38.09 to 35.93 mm from pretreatment to posttreatment samples (p = .0101). All patients had resolution of clinical or radiographic enophthalmos and orbital displacement with ESS alone. Endoscopic maxillary antrostomy alone in the treatment of SSS significantly increased maxillary sinus volume and decreased diseased orbital height. These changes were associated with clinical and radiographic improvement in globe displacement. These findings support performing ESS alone, reserving orbital augmentation for patients who do not exhibit adequate clinical improvement.

Does maxillary sinus size affect the risk for zygomatic complex fractures?

The purpose of the study was to measure the maxillary sinus sizes in patients with and without zygomatic bone fractures. In this cross-sectional study computed tomography data of a case group of consecutive treated patients with displaced zygomatic bone fractures were compared to a control group with mandibular fractures. Maxillary sinus sizes were measured in width, height, depth, and volume. We compared sinus sizes between the case and control group, followed by a subgroup analysis of slightly and severely displaced fractures using T-tests. We identified 89 cases, thereof 46 with slightly and 43 with severely displaced fractures. The control group consisted of 110 patients. The mean sinus volume of the case group (19,313 mm3 ± 5237) was significantly larger than in the control group (17,645 mm3 ± 4760; p=0.02). Subgroup analyses revealed that this difference in volume was more pronounced between patients with severely displaced fractures (20,354 mm3 ± 5416; p=0.003) and the control group. In two-dimensional measures, only sinus height was significantly greater in the case group (37.41 mm ± 4.25 vs. 35.33 mm ± 4.88; p=0.002). The same holds for the subgroup with severely displaced fractures (38.27 mm ± 3.91; p=0.001). Sinus width and depth showed no significant differences between the groups. A maxillary sinus volume larger than 20,000 mm3 is a predictive risk factor for a displaced zygomatic bone fracture. Greater sinus height indicates a larger surface area of the zygomaticomaxillary buttress that decreases the resistance to facial trauma.

Orthodontic Treatment Does Not Affect Frontal Sinus Development in Female Adults: A Clinical Study.

Frontal sinus growth is gradual and lasts until post-puberty. However, the influence of biomechanical stimuli, such as orthodontic treatment, on frontal sinus development after the growth period has ended remains unclear. This study was designed to elucidate the impact of orthodontic treatment on the frontal sinus morphology of adult females. Sixty women were included and divided into three groups, based on the Frankfort mandibular plane angle. All participants underwent computed tomography and lateral cephalometry before and after treatment. Although two participants exhibited frontal sinus agenesis, most exhibited a bilaterally symmetric frontal sinus without fusion. The frontal sinus width and height were almost similar, irrespective of the vertical skeletal pattern, where the frontal sinus depth was significantly larger in the average mandibular plane angle group than in the low- and high-angle groups. Furthermore, the sinus volume in the low-angle group was likely smaller than that in the average and high-angle groups. On comparing pre-treatment and post-treatment measurements, minimal or no changes to the frontal sinus dimension were detected after treatment. In conclusion, orthodontic treatment did not affect frontal sinus development after the end of growth.

Comparison of the Paranasal Sinus Features of Paediatric Patients with and Without Cleft Palate: A CBCT Study.

This study is performed to compare the paranasal sinus volumes in paediatric unilateral cleft palate (UCP) and healthy patients. Cone-beam computed tomography (CBCT) images of 80 patients (40 boys, 40 girls) with UCP and 80 healthy individuals (40 boys, 40 girls) were evaluated. Paranasal sinus volumes were segmented and measured using ITK-SNAP software. Descriptive statistics, Kolmogorov-Smirnov, paired sample t-test and student t-test were performed for statistical analysis. The volumes of ethmoid, frontal and sphenoid sinus on the cleft side were not significantly different than the non-cleft side (p>0.05) in UCP patients. Maxillary sinus volume of the cleft side in UCP patients was significantly lower than the non-cleft side (p<0.05). Mean maxillary sinus volume in UCP patients was 11825.23±509.95 mm3 at the cleft side and 13497.85±358.07 mm3 at the non-cleft side. While the mean volumes of ethmoid and sphenoid sinuses of patients with UCP were not significantly different from healthy individuals (p>0.05), the mean volumes of maxillary and frontal sinuses were significantly lower than healthy individuals (p<0.05). The mean maxillary sinus volume in UCP patients was 25323±597.8 mm3 and 26666±874.3 mm3 in the control group. The mean frontal sinus volume in UCP patients was 5633±323.1 mm3 and 5735±315.2 mm3 in the control group. UCP caused a significant reduction in maxillary and frontal sinus volumes. The results of the current study show that paranasal sinus volumes in patients with UCP should be examined in more detail to make more risk-free and effective treatment plans.

Volumetric evaluation of the sphenoid sinus among different races in the Southeast Asian (SEA) population: a computerized tomography study.

Introduction: The fundament of forensic science lies in identifying a body. The morphological complexity of the paranasal sinus (PNS), which varies greatly amongst individual, possess a discriminatory value that potentially contributes to the radiological identification. The sphenoid bone represents the keystone of the skull and forms part of the cranial vault. It is intimately associated with vital neurovascular structures. The sphenoid sinus, located within the body of the sphenoid bone, has variable morphology. The sphenoid septum's inconsistent position and the degree, as well as the direction disparities of sinus pneumatization, have indeed accorded it a unique structure in providing invaluable information in forensic personnel identification. Additionally, the sphenoid sinus is situated deep within the sphenoid bone. Therefore, it is well protected from traumatic degradation from external causes and can be potentially utilized in forensic studies. The authors aim to study the possibility of variation among the race, and gender in the Southeast Asian (SEA) population, using volumetric measurements of the sphenoid sinus. Materials and methods: This is a retrospective cross-sectional analysis of computerized tomographic (CT) imaging of the PNS of 304 patients (167 males, 137 females) in a single centre. The volume of the sphenoid sinus was reconstructed and measured using commercial real-time segmentation software. Result: The total volume of sphenoid sinus of male gender had shown to be larger, 12.22 (4.93 - 21.09) cm3 compared to the counterpart of 10.19 (3.75 - 18.72) cm3 (p = .0090). The Chinese possessed a larger total sphenoid sinus volume, 12.96 (4.62 - 22.21) cm3) than the Malays, 10.68 (4.13 - 19.25) cm3 (p = .0057). No correlation was identified between the age and volume of the sinus (cc= -.026, p = .6559). Conclusion: The sphenoid sinus volume in males was found to be larger than those of females. It was also shown that race influences sinus volume. Volumetric analysis of the sphenoid sinus can potentially be utilized in gender and race determination. The current study provided normative data on the sphenoid sinus volume in the SEA region, which can be helpful for future studies.

Evaluation of the effect of direct sinus lift surgery on maxillary sinus volume by Mimics software.

Sinus lift surgery allows sufficient volume of bone to be created in the posterior part of the maxilla. The aim of this study was to investigate the changes in maxillary sinus volume after a sinus lift and the rate of increase in ridge height at the site of the graft. Eleven patients were chosen for sinus lift from among those who were referred to the radiology department for implant placement in the posterior region of the maxilla and whose bone height at the posterior of the maxilla was less than 4 mm on the cone-beam computed tomography (CBCT) image. The sinus volume was measured after importing the CBCT file in DICOM format into Mimics software. After determining the sinus volume, the patients underwent sinus lift surgery, and the amount of material used during the surgery was measured. After the time required to repair the area, the CBCT image was taken again. Then, the changes in the volume of the maxillary sinus and the increase in the height of the maxillary ridge at the surgical site were calculated. Then, the second stage of the surgery was performed to place the implant at the implant site. For an average of 1.40 cm3 of material, the rate of increase in ridge height was 10.52 mm, and the average change in sinus volume was 1.19 cm3. CBCT images and Mimics software have many applications in examining and predicting parameters before and after sinus lift surgery.

Maxillary Sinus Volume and Its Effect on Treated Impacted Canines.

The goal of study was to explore the role of 3D CBCT (cone beam computer tomography) in detecting impacted canines and their movement to evaluate the influence of orthodontic therapy parameters on treatment options, and to monitor quality of healing process based on shape and size of sinus maxillae volume. It is known that the volume of maxillary sinus plays an important role in patients with impacted teeth. The prospective study consisted of 26 individuals. For each individual, pre-treatment and post-treatment CBCT data were acquired. Changes of size, and position of impacted canine in 3D CBCT image before and after therapy were prepared using 3D reconstruction. Volumetric measurements of the maxillary sinuses were performed before and after orthodontic therapy of impacted canines, using InVivo6 software. The main effects MANOVA performed on linear measurements showed metric differences between pre-op and post-op images. A paired t-test showed no statistically significant differences between pre-op and post-op values of the sinus volume. Changes of size and position of impacted canine in 3D image before and after therapy were precise and reproducible, using 3D reconstruction in three planes - horizontal, midsagittal, and coronal. The linear measurements showed metric differences between pre-op and post-op images.

Morphometric Sex Identification Based on Paranasal Sinus Dimensions in the Indian Population: A CBCT Based Study

Introduction: The creation of technologies using anatomical components like the maxillary sinus and frontal sinus that might preserve their stability yet after extreme events, are helpful for forensic investigations because sex determination is a crucial component of determining the profile of an individual. Aim: To determine the sex using Cone Beam Computed Tomography (CBCT) scans, in a South Indian community by measuring the frontal and maxillary sinuses. Material and Methods: The present cross-sectional study was conducted in the Department of Oral Medicine and Radiology, Sri Balaji Vidyapeeth University, IGIDS, Pondicherry, India, from 1st March 2021 to 31st March 2022. Analysis included 45 CBCT scans from 22 males and 23 females were subjected to volumetric measures in the maxillary sinus and frontal sinus. Applying NNT software, the volume measurement was carried out. The data was used to feed into a sex identification mathematical model. For evaluation, the student’s t-test has been used. Results: In the total study subjects, the mean age of males was 36.909 years and of females was 36.304 years. Only the volume of the frontal sinus varied significantly among males and females (p-value&lt;0.001). The discriminant function analysis equation showed that 50% of males and 91.3% of females correctly identified their gender. According to the crossvalidated categorisation, 71.1% of the people were accurately categorised altogether. Conclusion: Segregation identification, which was validated with evaluations in the frontal and maxillary sinuses with CBCT scans, is another technique for identifying individuals who identify as Indian. The present study shows that paranasal sinus morphologic evaluation is a useful method for identifying a person’s gender.

Evaluation of Maxillary Sinus Volume, Nasal Septum Deviation, and the Presence of Concha Bullosa in Patients with Unilateral Cleft Lip and Palate: A Retrospective Study

Evaluation of Maxillary Sinus Volume, Nasal Septum Deviation, and the Presence of Concha Bullosa in Patients with Unilateral Cleft Lip and Palate: A Retrospective Study

Analysis of the effects of total pneumatized turbinate volume on septum deviation, maxillary sinus volume, and maxillopalatal parameters: A multidetector computerized tomography study

Introduction: The aim of this study was to examine the effects of pneumatized turbinate volume (PTV) on nasal septum deviation (NSD), maxillary sinus volume (MSV), and maxillopalatal parameters with multidetector computed tomography (MDCT). Material and Methods: MDCT images of a total of 73 patients (35 females and 38 males) between the ages of 25 and 58 years were used in the study. PTV, MSV, and NSD angle and direction and interalveolar distance (IAD), maxillary spin distance (MSD), and maxillopalatal angle (MPA) measurements were made on images brought to the orthogonal plane in 3 plans. Results: Turbinate pneumatization (superior, middle, or inferior) was found in a total of 55 (75.3%) patients (28 females and 27 males). The number of patients with turbinate pneumatization on the right side was 14 (19.2%), while the number of patients with turbinate pneumatization on the left side was 15 (20.5%) and the number of bilateral pneumatization was 26 (35.6%). While no significant association was found between the presence of turbinate pneumatization and septal deviation angle, MSV, MPA, IAD, and MSD measurements, a significant difference was found between the groups in terms of PTV (P < 0.05). No significant association was found between NSD direction and all parameters. Discussion and Conclusion: In this study, we conducted with MDCT images, in addition to the highest incidence in turbinate pneumatization with 75.3%; it was found that PTV did not have an effect on NSD amount, MSV, and maxillopalatal parameters. Men were found to have higher NSD angle, higher maxillary sinus aeration, and larger IAD when compared with women.

Comparison of Maxillary Sinus Volumes in Individuals with Different Dentofacial Skeletal Patterns: A Cone-Beam Computed Tomography Study

Comparison of Maxillary Sinus Volumes in Individuals with Different Dentofacial Skeletal Patterns: A Cone-Beam Computed Tomography Study

Three-dimensional evaluation of maxillary sinus volume, skeletal and dentoalveolar maxillary anterior region, in unilateral palatally impacted maxillary canine (Cross-sectional study).

Three-dimensional evaluation of maxillary sinus volume using VR mesh and correlate it with the volume of maxillary canine, lateral incisor, and dentoalveolar and skeletal dimensions in both impacted and non-impacted sites. In a retrospective cross-sectional study, cone beam computed tomography scans of 100 patients with unilateral palatally impacted maxillary canine were analyzed. Canine, lateral incisor, and maxillary sinus volumes on the impaction and non-impaction sides were measured using DICOM files, with three-dimensional softwares (MIMICS) and VR mesh to accomplish this assessment. There were no significant differences in canine and lateral incisors volumes between male and female patients in the impacted side at (p > 0.05) while the maxillary sinuses volume revealed a statistical difference (P = 0.022) between male (12642 ± 810) and female (12481 ± 650) patients in the impacted side. A strong positive correlation was found between canine and lateral incisor volume for male patients in the non-impacted (r = 0.420**, P = 0.008) and impacted sides (r = 0.334*, P = 0.038). There were no significant differences in the canine volume, the height of the anterior alveolar ridge (AARHMLI), and anterior dentoalveolar (ADAHMLI) of maxillary lateral incisors in the impacted/non-impacted side, but it showed a statistically significant difference for the lateral incisors volume in the impacted and non-impacted sides for male and female patients. The maxillary sinus volumes revealed a statistical difference between males and females in impacted and non-impacted sides.

Structural and functional changes of nasal cavity and maxillary sinus in patients with skeletal class III malocclusion 1year after bimaxillary surgery.

This study aimed to analyse changes in the nasal cavity and maxillary sinus structure and function in patients with skeletal class III malocclusion 1 year after bimaxillary surgery. In this study, cone-beam computed tomography (CBCT) images of 20 patients (10 men and 10 women; mean age 24.3± 3.4 years) with skeletal class III malocclusion who underwent Le Fort I osteotomy and bilateral sagittal split osteotomy were obtained before and 1 year after the surgery. CBCT data were stored opened with element 3D (E3D) to establish a nasal airway model (the paranasal sinus includes only the maxillary sinus). Ansys (ANSYS) software is used for simulation and analysis. The maxillary sinus and nasal cavity volumes decreased significantly 1 year after the surgery. After surgery, the volume of nasal cavity decreased by 13.5%, and the average volume of maxillary sinus decreased by 7.8%. There was no significant difference in the degree of deviation of the septum and nasal cavity resistance, and air distribution in the maxillary sinus did not change. The nasal cavity wall shear stress change was similar to that before surgery. The maxillary sinus volume and nasal cavity volume of patients with skeletal class III malocclusion changed significantly after bimaxillary surgery, but there was no significant change in nasal ventilation function 1 year after surgery.

The relationship between anatomical variations and paranasal sinus volumes with climate and altitude

The aim of this study was to evaluate the effect of climate and altitude differences on the volume of paranasal sinuses and on the frequency of anatomic variations by comparing the paranasal sinus computerized tomography (PNSCT) of patients who were born and living in a cold, dry climate at high altitude with those of patients who were born and living on the coast at sea level in a temperate climate. We also aimed to determine differences relating to gender. Axial and coronal CT sections were used for volume measurements in the paranasal sinuses. For measurements, the widest view of the sinuses was used. The findings of this study have shown that age groups and genders compared measurements between the two cities. When the age groups are examined, there is no significant difference between the regions between 0-20 years of age (p&gt; 0.05), whereas 21-40,41-60,61 and above individuals have a significant difference between the frontal and sphenoid sinuses (p 0.05). Besides, when the diameter of the paranasal sinuses between regions is examined; It was found that individuals in Adana were longer than Sivas (p

Determination of Gender Divergences of Maxillary Sinuses Measurements in Computed Tomographic Scans of Kerala Population

The challenging forensic procedure of corpse identification is required by law authorities and social norms. It is very crucial to compare the post-mortem and antemortem medical information in cases where the bodies are severely damaged and beyond recognition. However, conventional identification techniques might not have been effective, especially though there have been substantial post-mortem alterations. In unidentifiable skeletons, gender has long been determined from either the skull, pelvic or long bones with an epiphysis and a metaphysis. In the present study, an attempt has been made to determine gender divergences from axial and coronal computed tomographic scans (CT) of the maxillary sinus in the Kerala population. A total of 40 individuals including 20 males and 20 females, visiting the Outpatient Department of the Koyilli Hospital, Kannur were included as the study subjects. The dimensions of the right and left maxillary sinuses of 40 subjects from plain CT were measured using Radiant DICOM software. Statistical analysis was completed with an independent student t-test and general descriptive analysis with SPSS software. Gender determination using height, length, and the width of the maxillary sinus on both sides showed statistically insignificant results but in the case of left volume and left the anterior-posterior height of the maxillary sinus the p-value was found to be significant at 95% of confidence level. So, the present study concludes that the left volume of the maxillary sinus and left anteroposterior height showed statistically significant results which can be considered in determining and screening corpses on the bases of maxillary sinus computed tomographic records.