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Kaur M.,Raj Rajeswari Dental College | Shah S.,Raj Rajeswari Dental College | Babaji P.,Vyas Dental College | Singh J.,Maharana Pratap Dental College | And 2 more authors.
Journal of Natural Science, Biology and Medicine | Year: 2014

Cherubism is a rare congenital disease resulting in malformation of the jaw. It occurs before the age of 5 years and regress spontaneously after puberty. It can result into enlargement of the jaw bone, tooth displacement, facial disfigurement and psychological trauma to patient. Hence, the understanding about the condition, its progression and management is necessary. © Journal of Natural Science, Biology and Medicine.

Ajith S.,Sri Hasanamba Dental College | Gowda A.,Sri Hasanamba Dental College | Babaji P.,Vyas Dental College | Shivaprakash S.,Malbar Dental College and Research Center | And 2 more authors.
Indian Journal of Dental Research | Year: 2013

Background: When ceramic brackets were introduced as an esthetic alternative to the stainless steel brackets, it was a step ahead in the use of esthetic appliances for orthodontic treatment. Although ceramic brackets had overcome the drawbacks of the initial polycarbonate brackets such as staining and bracket slot distortion, they posed an altogether different problem. This was on account of the physical properties of the ceramic material, namely brittleness. Purpose of the Study: The purpose of this study is to investigate the physical properties of three different varieties of esthetic brackets, i.e., "MXI" ceramic bracket, "Spirit MB" bracket (Ormco), a composite bracket with metal slot reinforcement and the third one fiber bracket, with silicious copolymer, Natura (Leone Co.). Aims and Objective of the Study : The objective of this study is to compare the torsional resistance of the brackets and resistance of brackets to second order archwire activations. Conclusion: The strength of the selected brackets was more than sufficient to withstand orthodontic load without any fracture or deformation.

Ugale G.M.,MIDSR Dental College and Hospital | Kalburgi N.B.,PMNM Dental College and Hospital | Bilichodmath S.,Rajarajeshwari Dental College | Warad S.B.,PMNM Dental College and Hospital | And 3 more authors.
Journal of Clinical and Diagnostic Research | Year: 2015

Background: The host immune response to bacterial dental plaque determines periodontal disease susceptibility by increasing the secretion of inflammatory cytokines. The Epidermal Growth Factor family cytokines stimulate proliferation and keratinization of cells in dermis and oral epithelium. Epidermal Growth Factor family consists of Amphiregulin, Betacellulin, Epiregulin, Epigen, Heparin binding Epidermal Growth Factor like growth factor and transforming Growth Factor-alpha. Aim: The current study aimed to investigate expression of Betacellulin in chronic periodontitis patients with and without type 2 diabetes mellitus and thereby assessing role of betacellulin in periodontal health and disease. Materials and Methods: Present study comprised of 90 participants, age ranges from 18 to 60-year-old, for the period of March 2010 to May 2011. Participants were categorized into three groups based Gingival index (GI), probing depth (PD) and clinical attachment loss (CA Loss). Group 1 consisted 30 individuals with clinically healthy periodontium, Group-2 consisted 30 individuals with GI>1, PD≥5 mm, and CA Loss>3 mm. Group-3 (Chronic Periodontitis with type 2 diabetes mellitus) consisted 30 with GI >1, PD≥5 mm, and CA Loss>3 mm. Immunohistochemical localization and quantification of Betacellulin was done in gingival tissue samples from all groups. Results: Data showed expression of Betacellulin were higher in chronic periodontitis as compared to healthy. A positive correlation found in Betacellulin expression and Probing Depth in chronic periodontitis. Conclusion: This footmark study impacts the role of Betacellulin in pathogenesis and progression of periodontal disease which will help in exploration of novel immunotherapeutic strategies and immunological research activity in this field. © 2015, Journal of Clinical and Diagnostic Research. All rights reserved.

Nemane V.,Government Dental College | Akulwar R.,Midsr Dental College | Meshram S.,Swami Devi Dayal Hospital and Dental College
Journal of Clinical and Diagnostic Research | Year: 2015

Background: The marginal fit of crowns is of clinical importance. It is found that marginal and occlusal discrepancies are commonly increased following cementation. The resistance of cementing materials is a factor that prevents cast restorations from being correctly seated. Different finish lines behave differently in facilitating the escape of the cement. When the escape path of the cement decreases, the crown fails to seat further. Materials and Methods: This study was planned with an aim to evaluate the effect of various finish lines on the marginal seal and occlusal seat of full crown preparations. Six stainless steel metal dies were machined to simulate molar crown preparations. The diameter was 10 mm and height was 6mm. The occlusal surface was kept flat and a small circular dimple was machined for reorientation of the wax pattern and metal copings, margins of various designs were machined accurately. The margins prepared were Group A- 900C shoulder, Group B- Rounded shoulder, Group C- 45 degree sloped shoulder, Group D- Chamfer, Group E- Long chamfer, Group F- Feather edge. Full cast metal crowns of base metal alloy were fabricated over the metal dies. Zinc phosphate luting cement was used for the cementation. After twenty four hours, the cemented crown and die assembly were embedded in clear acrylic resin so as to hold the assembly together while sectioning. Twenty four hours later, all the samples were sectioned sagitally. The sectioned halves were focused under a stereomicroscope and the cement spaces were measured to the nearest micron. The cement thickness was measured at two points on the occlusal surface and one at each margin. Results: Significant differences were observed in the occlusal seat and marginal seal of all the finish line configurations. The rounded shoulder had the best occlusal seat, followed by 900C shoulder. The occlusal seat and marginal seal afforded by the shoulder finish lines were similar whereas there was a vast difference in the seating and sealing of long chamfer and feather edged preparations. They showed the worst occlusal seat. Conclusion: It was found that the finish lines like shoulder preparations which exhibit poor sealing prior to complete cementation allow good seating whereas margins which seal earlier do not allow escape of cement and hence do not seat completely. © Journal of Clinical and Diagnostic Research. All rights Reserved.

Jaishankar H.P.,JSS Dental College and Hospital | Kulkarni P.,Kalinga Institute of Dental science | Bijjaragi S.C.,Midsr Dental College | Sangle V.A.,Midsr Dental College
Journal of Clinical and Diagnostic Research | Year: 2015

Background: Periodontitis is an inflammatory disease of the supporting tissues of the teeth caused by specific microorganisms, resulting in destruction of the periodontal ligament and alveolar bone. Progressive loss of alveolar bone is the salient feature of periodontal disease. Accurate detection of periodontal disease with the use of radiographs helps in diagnosis, treatment and prognosis. Aims: The present study aims to compare the efficacy of conventional intraoral periapical (IOPA) and direct digital radiographs (RVG) in detecting interdental alveolar bone loss using intrasurgical (IS) measurements as the gold standard. Materials and Methods: Thirty patients elected to undergo periodontal flap surgery with periodontitis computing to 60 interdental alveolar defects on mandibular first molars were considered. IOPA and RVG were captured using standardized techniques. Bone loss measurements in IOPA and RVG were compared to the IS measurements. Statistical Analysis: Statistical analysis was carried out using student t test and ANOVA with the help of SPSS software and p-value <0.05 was considered as significant. Results: Both IOPA and RVG underestimated the bone loss measurements when compared to IS measurements which was statistically significant (p<0.0001). Bone loss measurements in RVG were closer to IS measurements than IOPA. Conclusion: Both the radiographic techniques IOPA and RVG underestimated bone loss by 1.5–2.5 mm. RVG was superior to IOPA for the detection of interdental bone loss due to reduced time and radiation exposure to obtain the same diagnostic information. © 2015, Journal of Clinical and Diagnostic Research. All rights reserved.

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