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   Table of Contents - Current issue
Coverpage
January-June 2017
Volume 3 | Issue 1
Page Nos. 1-23

Online since Monday, April 16, 2018

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REVIEW ARTICLE  

Cone beam computed tomography in orthodontics p. 1
Sumreet Kaur Sandhu
DOI:10.4103/sidj.sidj_1_18  
A new revolution in three-dimensional radiologic advances in dentistry was introduced in the year 1998, as cone beam computed tomography (CBCT). Over the years, it has become an increasingly popular technique in orthodontic diagnosis, treatment planning, and research. This rise in its popularity has been facilitated by the relative advantages of three-dimensional (3D) over 2D radiography. CBCT imaging involves only a minimal increase in radiation dose relative to combined diagnostic modern digital panoramic and cephalometric imaging. A combination of volumetric reconstruction and multiplanar views can provide the orthodontic clinician with skeletal hard tissue, soft tissue, dentition, and airway information. Despite many suggested indications of CBCT, scientific evidence that its utilization improves diagnosis and treatment plans or outcomes has only recently begun to emerge. This article provides a comprehensive review of the application of CBCT in orthodontics. The current indications for CBCT in standard orthodontic diagnosis include impacted teeth, cleft lip, and palate and skeletal discrepancies requiring surgical intervention, root resorption, supernumerary teeth, temporomandibular joint (TMJ) pathology, facial asymmetry, temporary anchorage devices, root morphology and angulation; alveolar boundary conditions; maxillary transverse dimensions and maxillary expansion, and vertical malocclusion. Advanced CBCT software applications can be used to quantify airway space in the cases of obstructive sleep apnea, perform superimpositions to semiquantitatively visualize changes over the hard and soft tissues, including the TMJ and airway.
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ORIGINAL ARTICLE Top

Evaluation of hardness and degree of conversion of different bulk-fill materials cured with Quartz Tungsten Halogen and light emitting diode devices p. 4
Ashok Suman, Jagvinder Singh Mann, Sumeeta Sandhu, Sonal Maurya
DOI:10.4103/sidj.sidj_2_18  
Aims: The aim of this study is to evaluate the hardness and degree of conversion (DC) of different bulk-fill materials when cured with the Quartz Tungsten Halogen (QTH) and Light emitting diode (LED) devices using same energy density. Settings and Design: This was in vitro study. Materials and Methods: Three different bulk-fill materials, i.e., Filtek™ [3M ESPE], Tetric® N-Ceram [Ivoclar Vivadent], and SDR (Smart Dentin Replacement) by Dentsply Caulk, were used for making 180 samples (60 samples each) in Teflon mold. Out of these 60 samples, samples of three heights were prepared, i.e., 2 mm, 4 mm, and 6 mm (20 each). All the sample molds were filled in single increment and were exposed to the QTH and LED using the same energy density. Then, these samples were tested for microhardness using the Vickers hardness (VH) testing machine (Mitutoyo, Japan) and DC using Fourier Transform Infrared Spectroscope (Cary 630 FTIR Agilent Technologies, Germany). Statistical Analysis Used: The statistical analysis was performed on the collected data. The Kolmogorov–Smirnov and Shapiro–Wilk tests showed that the data are normally distributed. Since all the variables were continuous and statistically independent, independent t-test was applied to compare mean values of VH and DC of inter groups. Results: The statistical analysis of readings revealed that there was no significant difference in the mean values of microhardness and % DC for both groups cured by QTH and LED. Conclusions: It can be concluded that irrespective of the type of the light cure unit if the energy density applied is same then almost similar performance can be expected from the devices.
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CASE REPORTS Top

Prosthodontic management of a young edentulous patient having Papillon–Lefévre syndrome: A rare case report p. 11
Ruhi Bajaj, Meenu Garg, Salil Pawah, Ramesh Gupta
DOI:10.4103/sidj.sidj_5_17  
Papillon–Lefevre syndrome is a rare autosomal recessive disorder, in which the clinical manifestations are periodontitis which results in premature loss of both deciduous and permanent teeth and palmoplantar keratinization. The palmoplantar keratoderma typically has its onset between the ages of 1 and 4 years and severe periodontitis starts at the age of 3 or 4 years. The deciduous teeth frequently fall out by about age five and most of the permanent teeth may also be lost by approximately age 17. In the present case, a young, edentulous male of this syndrome having most the characteristic features was treated by modified complete denture prosthesis considering his young age and low socioeconomic status.
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Benign osteoblastoma of the mandible p. 15
Altaf Hussain Thekiya, Karanveer Singh Saluja, Bakhshish Singh, Taranjeet Kaur Bhatia, Suman Arora
DOI:10.4103/sidj.sidj_4_18  
Osteoblastoma, a rare osteoblastic tumor, constitutes approximately 1% of all primary bone tumors. It is characterized by osteoid and bone formation with the presence of numerous osteoblasts. A 24-year-old female presented with a chief complaint of a painless swelling beneath the mandible, which was growing during the past 3 years. Radiological picture disclosed a well-circumscribed lesion with patchy radiopaque internal structure. After complete excision, the histopathological diagnosis was a benign osteoblastoma of the mandible. Differential diagnosis and immunohistochemical features are potentially useful for refining diagnosis of osteoblastoma.
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Immediate temporization with natural tooth pontic p. 18
Bhuvanesh Tandon, Ekta Singh Suneja, Bharat Suneja, Sameer Kaura
DOI:10.4103/sidj.sidj_4_17  
In certain clinical scenarios, using an intact natural tooth which is in good clinical condition as pontic for interim duration could offer benefits such as excellent color, shape, and size match, positive psychological value, minimal cost, and minimum chairside time with no laboratory procedure involved. Natural tooth pontic suitably modified and bonded to adjacent teeth enables proper healing in the area without compromising the anterior esthetic demands of the patient. In the present study, a clinical technique for immediate interim tooth replacement is being presented, utilizing the clinical crown to assist the clinician in providing an esthetically acceptable treatment option.
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Simplifying complexities of nonparallel abutments p. 21
Sheen J Arora, Aman Arora, Divya Malik
DOI:10.4103/sidj.sidj_3_17  
The success of the prosthetic rehabilitation in a long-span fixed partial denture (FPD) requires adequate restoration of its function, periodontal health, and esthetics. This case report describes various treatment options to overcome stresses produced in a long-span FPD with tilted molar.
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