Adaptation of Different Compomers to Primary Teeth Cavities

Background: Compomers remain the material of choice for restoration of primary teeth as they combine the best of GIC and composites. However, as it is a resinous material, attentionis focused on polymerization shrinkage causing gaps at restoration cavity interface. Gaps represent decreased efficacy of adaptation. Aim: To evaluate the marginal adaptation of compomers (Dyract, Compoglass, and F-2000) in class I and V cavities in primary molars. Materials and methods: Sixty noncarious primary molars were divided for three compomers (20), which were subdivided to two groups. Standard class I and V cavities (10 each) were prepared and restored. The cavity interface was examined and observations analyzed. The cavities were etched prior to restoration and margins were exposed. The cavosurface margins were inspected under stereomicroscope for surface gaps. Then buccolingually sectioned, they were examined for marginal gaps. Two specimens each were selected for SEM. Chi-square test was used to determine statistical significance (p < 0.05). Results: All compomers showed good adaptation at cavosurface, with class I better than V. Compoglass and Dyract were better adapted to cavity walls than F-2000. SEM revealed close interlaced adaptation of filling material to etched cavity. Conclusion: This study has shown that compomers provide good adaptation at cavity margins with compules (Compoglass and Dyract) being a better mode of dispensing than syringe tubes (F-2000). SEM showed gaps and pooling of adhesive and air in few samples.&nbsp

Implantless press fit graft fixation technique at Patella for MPFL reconstruction

Patellofemoral instability is one of the most prevalent knee disorders in adolescents. It is often multifactorial and complex. Often accompanied by insufficiency or tear of MPFL ligament. MPFL is primary soft tissue stabiliser of patella and acts as checkrein of lateral patella dislocation. There have been variations in surgical techniques including different choices of surgical techniques, graft material and fixation methods, despite these there is no conclusive evidence that a particular surgical option is superior to another. Recurrent Patella instability requires individualised surgical planning . In this article we present a surgical technique which is implantless socket type of press-fit fixation at patella

Comparison of Physiological and Biochemical Autonomic Indices in Children with and without Autism Spectrum Disorders

Background and objectives: Autism Spectrum Disorder (ASD) is a complex neuro-developmental disorder and it has been suggested that symptoms of ASD are associated with neural networks that regulate the Autonomic Nervous System (ANS). However, the nature of autonomic atypicalities in ASDs remain largely unknown. Measures like Heart Rate Variability (HRV) and urinary Vanillylmandelic Acid (VMA) estimation are sensitive and non-invasive physiological and biochemical indicators of autonomic nervous activity. This study aimed to compare the physiological and biochemical autonomic indices in children with and without ASD. Materials and Methods: In this case-control study, 40 children with autism and 40 Typically Developing (TD) children were recruited. Measures of physiological autonomic index were assessed by the analysis of short term HRV, and the urinary levels of VMA estimation was used as a biochemical autonomic index. Results: Cardiac sympathetic activity assessed by Low Frequency (nu) of HRV was significantly higher in the ASD group in comparison with the TD group (p = 0.006). On the contrary, both the High Frequency (abs) and (nu) of HRV were found to be significantly lower in autistic children (p = 0.034 and p = 0.000) than controls. Autistic children also exhibited a significantly higher level (p = 0.049) of VMA concentration compared to TD children. Conclusion: The study concludes that children with ASD exhibit lower cardio-vagal activity as measured by HRV and increased sympathetic activity as assessed by urinary VMA compared to that of TD children. The core autistic symptoms exhibited by children with ASD could be due to the differences in baseline arousal or stress which might be associated with autonomic dysfunction. Further studies are needed to examine the association of this autonomic dysregulation with ASD symptoms and comorbidities

3rd National Conference on Image Processing, Computing, Communication, Networking and Data Analytics

This volume contains contributed articles presented in the conference NCICCNDA 2018, organized by the Department of Computer Science and Engineering, GSSS Institute of Engineering and Technology for Women, Mysore, Karnataka (India) on 28th April 2018