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  1. AU="Krishnaraj Rajaram"
  2. AU=McKay Andrew
  3. AU="Price, Leigh"
  4. AU="Banur Boynukara"
  5. AU="Olsson, Marita"
  6. AU="Gevorkyan, Gevork"
  7. AU="Francis, Jill"
  8. AU="Katori, Chiaki"
  9. AU="Anderson, Karly N"
  10. AU=Sheikh Fatima
  11. AU="Machado, Clarissa Maria Goncalves" AU="Machado, Clarissa Maria Goncalves"
  12. AU="Goldfaden, Rebecca F"
  13. AU="Jacques, Simon"
  14. AU="Calatayud, David G"
  15. AU="Yan, Dingfei"
  16. AU="Rippin, Ido"
  17. AU="Krista M. Pullen"
  18. AU="Higo, Tomoya"
  19. AU="Bremadesam Raman, Lakshmi"
  20. AU="Duffner, P K"
  21. AU="Walsh, Jacinta"

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  1. Artikel ; Online: Effect of 30% Grape Seed Extract on the Shearbond Strength of Orthodontic Adhesive Resin

    Arpitha Eshwar / Poornima R Jnaneshwar / Krishnaraj Rajaram / Ravi Kannan

    Journal of Clinical and Diagnostic Research, Vol 16, Iss 11, Pp ZF01-ZF

    An In-vitro Study

    2022  Band 05

    Abstract: Introduction: Grape Seed Extract (GSE) contains Proanthocyanidins (PA) which have been shown to cross-link and strengthen demineralised dentin collagen. There is paucity of research to evaluate, if grape seed extract increases the Shearbond Strength (SBS) ...

    Abstract Introduction: Grape Seed Extract (GSE) contains Proanthocyanidins (PA) which have been shown to cross-link and strengthen demineralised dentin collagen. There is paucity of research to evaluate, if grape seed extract increases the Shearbond Strength (SBS) of orthodontic resin when bonding to enamel. Aim: To evaluate the SBS and Adhesive Remnant Index (ARI) scores of enamel surface bonded with orthodontic resin after immersing in 30% of grape seed extract and compare the same with that of control group. Materials and Methods: This in-vitro study was conducted in SRM Dental College, Ramapuram, Chennai, India, from January 2021 to August 2021, in which 72 extracted teeth samples were divided into two groups. The two groups, each with 36 specimens, included Group I (Control), Group II (Test). Teeth in the test group were soaked in 30% grape seed extract for 10 minutes before bonding and teeth in the control group were bonded directly without soaking in grape seed extract. SBS were measured using a universal testing machine. To evaluate the amount of resin left on the enamel surfaces after debonding, ARI scores were used. The samples were subsequently evaluated using Scanning Electron Microscope (SEM) to study the surface characteristics of enamel after immersion in grape seed extract. Student’s t-test was used to assess the difference between two groups in SBS and Chi-square test was used for ARI scores. Results: Total of 72 teeth were analysed, 36 extracted teeth in each group. The mean SBS in group I was 78.9 Newton (N), 59.03 N in group II. There was a stastistically significant differences in the mean scores of SBS between the groups (p-value=0.0024). The SBS of control group was significantly higher than the test group. Significant difference (p-value=0.016) found in ARI scores between the two groups. In SEM analysis, after grape seed extract conditioning followed by acid etching, pronounced cobble stone appearance was noticed, indicating a type II etching pattern. Conclusion: Adhesive failure occurred at the ...
    Schlagwörter adhesive remnant index ; antioxidants ; enamel conditioning ; proanthocyanidin ; Medicine ; R
    Thema/Rubrik (Code) 796
    Sprache Englisch
    Erscheinungsdatum 2022-11-01T00:00:00Z
    Verlag JCDR Research and Publications Private Limited
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Frictional Resistance of Non Coated and Epoxy Coated Superelastic NiTi Wires used for Aligning in Three Types of Brackets

    Monisha Ravishankar / Sangeetha Duraisamy / Krishnaraj Rajaram / Ravi Kannan / Nishanth Sivakumar

    Journal of Clinical and Diagnostic Research, Vol 16, Iss 5, Pp ZC40-ZC

    2022  Band 43

    Abstract: Introduction: Coated archwires are preferred in combination with aesthetic orthodontic brackets by orthodontists over non metallic aesthetic archwires. Studies evaluating the frictional properties of epoxy coated round superelastic Nickel Titanium (NiTi) ...

    Abstract Introduction: Coated archwires are preferred in combination with aesthetic orthodontic brackets by orthodontists over non metallic aesthetic archwires. Studies evaluating the frictional properties of epoxy coated round superelastic Nickel Titanium (NiTi) archwires are limited to stainless steel brackets. Aim: To evaluate and compare the frictional resistance of an epoxy coated 0.016*" superelastic NiTi archwire in stainless steel, composite and ceramic brackets and to compare it with the frictional resistance generated by non coated 0.016*" superelastic NiTi archwire in same brackets. Materials and Methods: An in-vitro experimental study was conducted in the Department of Orthodontics at SRM Dental College, Ramapuram Chennai, Tamil Nadu, India, from January to February 2020. Frictional resistance of 30 epoxy coated aesthetic 0.016*" upper superelastic NiTi wires (G4™ Nickel Titanium, 0.016*, Upper Trueform™ I, Tooth-Colored) and 30 conventional 0.016*" upper superelastic NiTi wires (G4™ Nickel Titanium, 0.016*, Upper Trueform™) from G&H® orthodontics while sliding across three different types of brackets were evaluated. Twenty stainless steel (Gemini® 3M unitek, Monrovia, California), 20 composite (FLI® RMO, Denver, Colo.), and 20 gemini clear ceramic (Gemini clear ® 3M unitek, Monrovia, California) 0.022×0.028" Slot Roth prescription maxillary first premolar brackets were used. The brackets and archwires were divided into six groups of different bracket and archwire combination with 10 samples in each. An Instron testing machine with a 10 N tension was used to measure the frictional resistance. The obtained values were analysed using One way ANOVA and followed by Post Hoc Tukey’s test HSD for multiple comparison. Results: Coated wires generated significantly high friction in ceramic brackets (136.90±3.79 gms) followed by composite brackets (125.66±3.44 gms) and stainless steel brackets (92.53±8.70 gms). Non coated wires generated significantly high friction with ceramic brackets (89.60±2.90 gms) whereas the ...
    Schlagwörter ceramic brackets ; coated archwires ; composite brackets ; nickel titanium archwires ; orthodontic friction ; Medicine ; R
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2022-05-01T00:00:00Z
    Verlag JCDR Research and Publications Private Limited
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Occlusal Contact Points, Areas and Bite Force Distribution in Angle’s Class I, II and III Patients using T-scan

    Laya Thayyi / Poornima Jnaneshwar / Krishnaraj Rajaram / Sangeetha Duraisamy / Ravi Kannan

    Journal of Clinical and Diagnostic Research, Vol 15, Iss 11, Pp ZC37-ZC

    2021  Band 42

    Abstract: Introduction: Number of occlusal contacts and uniform bite force distribution during maximum intercuspation are determinants of a good functional occlusion. Distribution of posterior contacts in the three malocclusion groups along with force distribution ...

    Abstract Introduction: Number of occlusal contacts and uniform bite force distribution during maximum intercuspation are determinants of a good functional occlusion. Distribution of posterior contacts in the three malocclusion groups along with force distribution has been a topic of research. Aim: To quantify the number of occlusal contacts and areas, bite force distribution in Angle’s Class I, II, III subjects using T-scan and to identify the centre of force trajectory. Materials and Methods: This cross-sectional, observational study was conducted in the Department of Orthodontics, SRM College, Chennai, Tamil Nadu, India, from June 2018 to December 2018. Total 45 subjects in the age group of 18 to 24 years were divided into three groups of 15 subjects each based on Angle’s classification of malocclusion with teeth in normal line of occlusion. T-Scan system sensor and software were used to record and store data. The collected data were analysed with IBM Statistical Package for the Social Sciences (SPSS) software version 23.0. The descriptive statistics were performed, followed by Analysis of Variance (ANOVA). Post hoc Tukey test was done to find the difference between the groups. Chi-square test was done for the categorical data and the Paired t-test for determining the significant difference between the bivariate samples in paired groups. Level of significance was set at p<0.05. Results: Out of three study groups, mean contact points (p<0.001), contact areas (p<0.001) and bite forces (p=0.0032) were statistically highly significant in Angle’s class I group when compared to the other groups. Statistically, the right and the left side differences in force distribution of the three groups were significant with the forces predominantly being higher on the right side. Conclusion: Subjects with Angle’s Class I molar relation had greater contacts, contact area and better bite force distribution. There was preference to the right side in bite force distribution in all the three groups. Centre of force trajectory was concentrated between first and second molars in all the groups.
    Schlagwörter centre of force trajectory ; dental occlusion ; digital occlusal analyser ; Medicine ; R
    Thema/Rubrik (Code) 796
    Sprache Englisch
    Erscheinungsdatum 2021-11-01T00:00:00Z
    Verlag JCDR Research and Publications Private Limited
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel: Changes in skeletal, dental, and upper-airway parameters after implant-supported rapid maxillary expansion.

    Manoharan, Sindhu / Krishnaraj, Rajaram / Duraisamy, Sangeetha / Arumugam, Edeinton / Ravi, Kannan

    Journal of clinical orthodontics : JCO

    2022  Band 56, Heft 2, Seite(n) 96–111

    Mesh-Begriff(e) Cone-Beam Computed Tomography ; Dental Arch ; Humans ; Maxilla ; Palatal Expansion Technique
    Sprache Englisch
    Erscheinungsdatum 2022-06-15
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 410668-4
    ISSN 0022-3875
    ISSN 0022-3875
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Microimplant Assisted Rapid Palatal Expansion

    Tamanna Hoque / Dilip Srinivasan / Sangeetha Morekonda Gnaneswar / Sushil Chakravarthi / Krishnaraj Rajaram

    Journal of Clinical and Diagnostic Research, Vol 15, Iss 8, Pp ZE11-ZE

    A Comprehensive Review

    2021  Band 15

    Abstract: Maxillary transverse deficiency routinely requires expansion of the palate. In prepubertal patients, Rapid Maxillary Expansion (RME) is a reliable treatment modality. However, in skeletally mature patients due to progressively interdigitated mid palatal ... ...

    Abstract Maxillary transverse deficiency routinely requires expansion of the palate. In prepubertal patients, Rapid Maxillary Expansion (RME) is a reliable treatment modality. However, in skeletally mature patients due to progressively interdigitated mid palatal suture, decreased elasticity of bone and increased stiffness of the osseous articulations of the maxilla with the adjoining bones, palatal expansion becomes challenging. Patients are frequently suggested to opt for more invasive procedures, like the Surgically Assisted Rapid Palatal Expansion (SARPE). The quest for minimally invasive expansion appliances with pure orthopaedic movement led researchers to incorporate mini-implants with conventional RME. Microimplant Assisted Rapid Palatal Expansion (MARPE) maximises skeletal expansion and minimises dentoalveolar undesirable effects and obviates the need for orthognathic surgery. This comprehensive review aims to discuss MARPE as an effective, non surgical, minimally invasive treatment modality for skeletally mature patients with maxillary transverse insufficiency. Furthermore, various designs of MARPE with different placement sites, lengths, and numbers of miniscrews along with the latest technological advancements to improve diagnosis and treatment planning using CBCT and intraoral scan, as well as the use of Computer-Aided Design/Computer-Aided Manufacturing (CAD-CAM) technology to custom fabricate three dimensional (3D) miniscrew insertion surgical guide, 3D laser-printed metallic mini-implant to enhance implant placement accuracy and comfort were discussed along with the clinical significance and limitations of the MARPE. Maxillary Skeletal Expander (MSE) is a unique lineage of MARPE when combined with facemask results in distraction osteogenesis like movement of midface and forms a promising basis for non surgical orthopaedic treatment modality for skeletal class III mature patients. Bone-anchored maxillary expansion appliances provide better vertical control, especially beneficial for hyperdivergent skeletal pattern patients. MARPE significantly increases transverse widths of the nasal floor, nasopharyngeal volume and significantly lowers mean nasal airway resistance thereby facilitating nasal breathing. MARPE results in greater orthopaedic expansion and safety, with fewer undesirable effects and high success rates.
    Schlagwörter bone-anchored maxillary expansion ; hybrid hyrax ; maxillary skeletal expander ; maxillary transverse deficiency ; mini-implant ; Medicine ; R
    Thema/Rubrik (Code) 616
    Sprache Englisch
    Erscheinungsdatum 2021-08-01T00:00:00Z
    Verlag JCDR Research and Publications Private Limited
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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