Search

Introduction: With the advancement in Imaging Technology, 3D Dental Computed tomography plays a very significant role in orthodontic treatment and diagnosing. Aim: To evaluate the dental crowding in relation to the mesiodistal crown widths and arch dimensions and also to determine the differences of dental crowding among male and female in Southern Indian population. Materials and Methods: A total of 132 subjects, divided into 33 males and 33 females in crowded and non-crowded group comprising of 66 each, aged between 15 and 35 years, referred for computed tomography scan of brain to the radiology department, were selected. During the scan both the jaws were included in the image. The 2D images converted to 3D image using volume rendering software. By using measurement tool individual and collective mesiodistal crown widths of canine, first and second premolar and first molar and arch perimeter of both the maxillary and mandibular jaws were measured. Results: When both the gender were considered the mesiodistal crown widths and arch perimeter were statistically significant for dental crowding in both mandibular jaw (p-value 0.001 for both mesiodistal crown width and arch perimeter) and maxillary jaw (p-value 0.016 for mesiodistal crown width and 0.002 for arch perimeter). When analysed separately, male revealed that the mesiodistal crown widths and arch perimeter were statistically significant for dental crowding in both mandibular jaw (p-value 0.001 for mesiodistal crown width and 0.002 for arch perimeter) and maxillary jaw (p-value 0.002 for mesiodistal crown width and 0.001 for arch perimeter) but in female it was not statistically significant in any jaw (p-value 0.7 for mesiodistal crown width and 0.06 for arch perimeter in mandibular jaw and p-value 0.2 for mesiodistal crown width and 0.9 for arch perimeter for maxillary jaw). The crowded group has larger tooth size and smaller arch perimeter. Conclusion: This study concluded that in males the factors mesiodistal crown width and arch dimensions contributes to dental crowding and the crowded dentition has larger mesiodistal tooth size and smaller arch dimensions whereas in female both the factors are not responsible for crowding in Southern Indian population. [ABSTRACT FROM AUTHOR]

Introduction: Sacral colpopexy is the gold standard procedure for pelvic organ prolapse. During sacral colpopexy, various complications such as haemorrhage can occur. Careful dissection of presacral space is essential to minimize complications. Aim: The aim of the study was to compare patient age and Body Mass Index (BMI) with Computed Tomography (CT) measured aorta-sacral promontory distance. Materials and Methods: From 172 samples data such as age and BMI of female patients aged 18 years and above was collected. Study was performed on patients who underwent Contrast Enhanced Computed Tomography (CECT) scans of abdomen. The obtained data was statistically analyzed using Pearson's correlation test and multiple linear regression. Results: The mean age was 56.5 years (range 18-95) and mean BMI was 23.25 (range 10.8-35.7). Increase in age is correlated with decrease in Aorta-sacral Promontory distance (APT) {Pearson's correlation coefficient (r) is -0.795 between age and APT, p<0.01}, but there is no correlation between BMI and APT (Pearson's correlation coefficient (r) is - 0.005 between BMI and APT, p>0.01). According to CT measurements aortopromontory distance is decreased in elderly female patients, but no significant changes in BMI and APT. Conclusion: The study showed that as age increases, APT decreases and there is no significant changes in relation to BMI. Therefore, during abdominal sacral colpopexy, the surgeon should be careful and consider the aortopromontory distance in the elder female patients while performing dissection. [ABSTRACT FROM AUTHOR]