Statement of Problem:A thorough knowledge of the salient features of malocclusion makes the practitioner to come to a proper diagnosis and to formulate proper mechanotherapy. It also helps to predict the prognosis, prior to the onset of treatment process. Among the various malocclusions, Class II div 2 occurs the least often. The literature review does not clearly describe the classical skeletal and dental features of Angle's Class II div 2 malocclusion.Purpose of Study:The aim of this study is to describe the unique features of Angle's Class II division 2 malocclusion.Materials and Methods:A total of 612 pre-treatment records (study models and cephalograms), with age ranging from 14 to 25 years, were obtained from the hospital records of Drs Sudha and Nageswar Rao Siddhartha Institute of Dental Sciences. Among these samples, 317 were Class II div 1 and 295 were Class II div 2. The lateral cephalograms were analyzed by using Kodak software and the arch width analysis was calculated by using digital vernier calipers.Results:Student's t test was used for the study. On the cephalograms, the vertical skeletal measurements and few of the dental variables showed a significant difference. On the plaster models, the maxillary transverse measurements revealed a notable discrimination between the groups.Conclusion:Angle's Class II div 2 malocclusion has a marked horizontal growth pattern with decreased lower facial thirds, palatally inclined upper anteriors, and remarkably increased transverse maxillary arch dimensions.
Background and Objectives: Circle of Willis plays a vital role in collateral circulation and redistribution of blood to all areas of the brain. Variation in circle of Willis is known to cause grave disorders like cerebrovascular disorders, subarachnoid haemorrhage, cerebral aneurysm and schizophrenia. The objectives of the present study are to study the formation and branching pattern of circle of Willis and also to study the distribution of variations. MATERIALS & Methods: The study was conducted on 50 adult brain specimens. Each brain was removed in one piece by dissection and the circle of Willis was observed for its formation, pattern and variations. Results: Among the 50 specimens studied, 28 cases (56%) had a normal pattern of circle of Willis and variations were observed in the remaining 22 cases (44%). More number of variations was observed on the right side than on the left side. The most common variation observed was hypoplastic posterior communicating artery (7 cases, 31.8%). Posterior communicating artery was found to be the most variable vessel while middle cerebral artery was the least variable vessel. Interpretation and Conclusion: The results with respect to the circle of Willis and all its component arteries were consistent with the results in the available literature. The only exception was the increased incidence of absence of both the anterior and posterior communicating arteries. This finding is of clinical significance to neurologists and neurosurgeons in this geographical location of north Karnataka. A higher incidence of variations in the communicating arteries is likely to manifest as a higher incidence in disorders like migraine, schizophrenia and cerebrovascular disorders due to compromised collateral circulation and poor redistribution of blood.
Aim and Objective: Lower lumbar burst fractures are rare entity with most of the literature restricted to small case series. There is no clear cut consensus on the guidelines for management. Here we present functional results of different modalities of treatment of this rare type of spine injury. Material and Methods: The study was conducted at two tertiary care centres over a period of 9 years. Patients with lower lumbar burst fractures were evaluated for associated injuries, modality of treatment, Pain score (VAS) and neurological status (Frankel Grade) at the time of injury and at final follow up were recorded. The final functional outcome was evaluated using Smiley-Webster functional score. Results: A total of 34 patients with an average age of 37.3 years (24 males; 10 females) and a mean final follow up of 27.9 months were enrolled. 21 patients had L3, 8 had L4 and 5 had L5 burst fractures. 10 patients were managed conservatively by brace and 24 underwent surgical intervention. The pain score (VAS) improved from a mean of 8.5 at the time of injury to a mean of 1.6 at final follow up. Patients with neurological injury had on average improvement of one Frankel grade. 88% patients had excellent to good final functional outcome. Conclusion: Lower lumbar burst fractures are high velocity injuries with other non-spinal injuries being associated. Most of the patients have good functional outcome with both conservative as well as surgical intervention. Patients with complete cauda equina have poor outcome with respect to neurological recovery.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.