Astudy of the effect of Sagital malocclusion at Class I and Class II on Facial Asymmetry at the Frontal Plane for a Sample of Patients Using Computed Tomography (CT)

The asymmetric face is common so that increased interest in it .there are different ways to assess the asymmetry. Computed tomography is an accurate way that enable the examiner for reading the face at three planes ,and present three-dimensional information on the cranial mandibular Complex whereas (3D) analysis is essential for making a precise diagnosis of craniofacial morphology. Aim : This research aims to study the asymmetric at the facial patterns malocclusion (class I. Class II) using CT . the research sample consists of 48 CT image (male 23 and female 15)their ages ranged between 18 and 35 years old and did not receive any orthodontic treatment before, and devided into two groups according to the malocclusion ptterns(17 class II, 31 class I ) . Analysis was performed T. student test then calculated for all the data obtained . This study showed that a significant difference between the class I and class II malocclusion in each of the right and left.

Evaluation of the Upper Airway Changes in Class II Patients Resulting From Functional Treatment Using Cone Beam Computed Tomography - An In Vivo Study

Objective: This research aimed to evaluate the three-dimensional effects of a Twin Block (TB) appliance on the pharyngeal airway passage (PAP) in a sample of Class II patients with mandibular retrusion using cone-beam computed tomography (CBCT).

The Effect of Rapid Maxillary Expansion on the Spheno-occipital Synchondrosis in Children using Cone Beam Computed Tomography

The RME force is not only concentrated on widening the maxilla, it is concomitant changes occur in craniofacial sutures, from here the need for this study was originated. Aim of the study: To investigate the immediate effect of rapid maxillary expansion on the spheno-occipital Synchondrosis in children using cone beam computed tomography.

Astudy of the effect of Sagital malocclusion at Class I and Class III on Facial Asymmetry at the Frontal Plane for a Sample of Patients Using Computed Tomography (CT)

The asymmetric face is common so that increased interest in it . there are different ways to assess the asymmetry. Computed tomography is an accurate way that enable the examiner for reading the face at three planes ,and present three-dimensional information on the cranial mandibular Complex whereas (3D) analysis is essential for making a precise diagnosis of craniofacial morphology . Aim : This research aims to study the asymmetric at the facial patterns malocclusion (class I. Class III) using CT .

A Study of maxillary and mandibular alveolar widths in skeletal class II compared with skeletal class I in adults ) Cone-Beam Computed Tomography Study )

Class II malocclusion is a common clinical problem among white Caucasian population and its transverse component is a critical aspect of a functional and stable occlusion. The size and shape of the arches have considerable implications in orthodontic diagnosis and treatment planning, affecting the space available, dental esthetics, and stability of the dentition. Hence , it is important to study the alveolar arch width in this group of patients using the wide possibilities of cone beam computed tomography of evaluating real anatomy , true-to-scale images without distortions or superimpositions, and the selection of the desired sections.Objective:To evaluate the width of maxillary and mandibular alveolar arches in skelatal Class II adults compared to skeletal class I using cone beam computed tomography. Materials and methods: thirty-two subjects with skeletal Class II relationship and 10 subjects with skeletal Class I who were ordinary undergoing CBCT scan for non-orthodontics nor for otorihnolaryngology purpose were selected to measure the maxillary and mandibular alveolar width of first premolar and first molars.Independent samples’ t-test was calculated. Results:No statistically significant differences were found of alveolar widths between skeletal Class II and Class I subjects in both maxillary and mandibular widths of molar and premolar regions. Gender had no statistically significant effect in the results of the study. Conclusion :There is no differences in alveolar width between adults with skeletal Class II and Class I relationships, so the transverse discrepancy in skeletal Class II when exsists , it is more probably not originated from the alveolar base.

Evaluation Of The Relationship Between The Upper Airway Morphology And Facial Growth Type In Adults of The Syrian Coast Using Three Dimentional Computed Tomography

This study aimed to investigate the relationship of the size and areas of the upper airway with the Facial growth type in adults ,and to investigate the differences in upper airway measurements between males and females using sagittal and axial slices of three dimensional computed tomography.

Relation between temporomandibular joint and normal growth pattern in female adult (CT scan study)

The aim of this research is to investigate the dimensional and positional symmetries between the right and left condyles ,and the possible asymmetries between the condylar processes that could be related to the type of growth pattern in adult subjects with no clinical nor radiographic symptoms of TMDs. Materials and methods: In result of a multistage clinical examination protocol, 14 Caucasian patients with normal growth pattern ,and with no prior orthodontics treatment were selected (14 females)from 17 to 29 years of age with no clinical signs and symptoms of TMDs. The images obtained from the axial and sagittal slices, Cephalometric growth pattern study was performed. Pearson's Correlation Coefficient and T-test were calculated. Results :no statistically significant relationship between the measurements of TMJ(left &right) and the normal growth pattern. Conclusions:There is no relationship between the morphology of TMJ and normal growth pattern in adult female orthodontically non-treated .

Medical Imaging Role in Renovascular Hypertension Diagnosis

Renal artery stenosis is an important clinical entity. its importance lies in that it may be a treatable cause of hypertension, and it is -when progress- a cause of chronic renal failure. The causes of renal artery stenosis are numerous, the most common are: atherosclerosis and fibromuscular dysplasia (accounts for more than 95% of cases). Digital Subtraction Angiography (DSA) is the standard reference in the radiologic diagnosis of renal artery stenosis, but it carries the risk of being invasive procedure. Doppler ultrasound is used in the evaluation of the renal arteries, and it has the advantage of being non-invasive and inexpensive.

Relationship between the Cant of The Functional Occlusal Plane and the Vertical facial patterns (CBCT scan Study)

The dentoalveolar mechanism, within the dentofacial complex, acts to camouflage the vertical base bone discrepancies resulting in differences in the functional occlusal plane cant (FOPC). Considering this, ensures more stable orthodontic treatment results. This research aims to study the possibility of a relationship between the FOPC (represented by anterior and posterior occlusal planes) and the vertical facial growth patterns (VFGPs) using cone beam computed tomography (CBCT). The research sample consisted of 50 CBCTs (22 males and 28 females) aged 18 to 35 years with no prior orthodontic treatments. Their FOPCs were studied according to the VFGPs. Pearson's correlation coefficient was then calculated for all the data obtained. The study showed that the posterior occlusal plane has a clearer correlation to the VFGPs than to the traditional occlusal plane. The posterior occlusal plane showed a strong correlation with the VFGPs in the female sample.

Three-dimensional Assessment of Skeletal Effects Following Rapid Maxillary Expansion Using Conebeam Computed Tomography

In this study, 24 patients with posterior skeletal cross-bite were treated at Orthodontics Department-Faculty of Dentistry in Hama University. Hyrax expansion device was applied in all patients and the results were assessed after active expansion period. Cone beam computed tomography radiograph were taken at the assessment times. Results showed that the midpalatal suture width has increased significantly at all measured areas. The results revealed that significant tipping in the canines , premolars and molars was recorded in this study.