261 research outputs found
Une orthodontie contemporaine fondée sur l'harmonie esthétique et sur la biomécanique. Un entretien avec Ravindra Nanda
No full textLe Pr Ravindra Nanda a obtenu une licence et une maîtrise en dentisterie et en orthodontie du King George's Medical College, Lucknow University. En 1967, il a intégré l'Université Catholique de Nimègue, aux Pays-Bas, où il a obtenu un doctorat en philosophie en 1969. Il a rejoint la nouvelle école dentaire de Loyola à Chicago en 1970, après avoir occupé le poste de Professeur assistant en orthodontie dans le service dirigé par Frans van der Linden. En 1972, il fut promu au Département d'Orthodontie de l'Université du Connecticut à Farmington, CT, et y reçu son certificat en orthodontie sous la direction de Charles Burstone. Professeur adjoint, puis professeur titulaire à partir de 1979, il a assumé le poste de Chef du Département d'Orthodontie à partir de 1992 et a été promu pour diriger le Département des Sciences Craniofaciales en 2004, dont les divisions de chirurgie orale et maxillo-faciale, de dentisterie pédiatrique, de l'enseignement supérieur en dentisterie générale et en orthodontie.
Il est membre et ancien président de la composante Atlantique Nord de la Edward H. Angle Society of Orthodontists. Il occupe actuellement la fonction de rédacteur en chef de Progress in Orthodontics, de rédacteur associé du Journal of Clinical Orthodontics et est membre du comité éditorial de neuf revues d'orthodontie nationales et internationales. Il est membre de l'Association dentaire américaine, de l'Association dentaire de l'État du Connecticut, de la Hartford Dental Society, de l'Association américaine des orthodontistes, de la Société européenne d'orthodontie, de l'Association internationale de recherche dentaire et du College of Diplomates of American Board of Orthodontists.
Il a rédigé et publié sept manuels et plus de 200 articles dans des revues à comité de lecture. Il a donné des conférences magistrales dans plus de 40 pays et a reçu de nombreux prix et honneurs pour ses contributions en dentisterie et en orthodontie, aux États-Unis et de la part d'organisations internationales d'orthodontie. Il est membre d'honneur des Jordan Orthodontic Society, Czech Orthodontic Society, Taiwanese Orthodontic Society, Central American Orthodontics Society et membre d'honneur à vie de l'Indian Orthodontic Society.
Ravindra Nanda a été honoré du Life Time Achievement Award (University of Connecticut Foundation), et il est Senior Research Fellow (Japan Promotion for Science, Sendai, Japan − Tohoku University). Il a prononcé de nombreuses conférences d'honneur : la John Taylor Lecture, lors de la réunion annuelle de l'Australian Society of Orthodontics Foundation, la Sheldon Friel Memorial Lecture lors de la réunion annuelle de l'European Orthodontic Society, la Gordon Kirkness Memorial Lecture lors de la réunion annuelle de l'Australian Society of Orthodontics, la John Mershon Memorial Lecture, Boston, Massachusetts lors de la réunion annuelle de l'American Association of Orthodontics et la Wendell L. Wylie Memorial Lecture, à l'Université de San Francisco, Californie
Accuracy of direct insertion of TADs in the anterior palate with respect to a 3D‐assisted digital insertion virtual planning
No full textBackground Direct and 3D-assisted methods are an available alternative when inserting temporary anchorage devices (TADs) in the anterior palate for orthodontic anchorage. This study aimed to evaluate the differences between a planned insertion versus a direct method on digital models. Settings and sample population Seventy TADs were inserted by the direct insertion method in 35 patients who needed palatal TADs for orthodontic anchorage. For each patient, placement was independently planned by the superimposition of lateral cephalograms and corresponding plaster models. After mini-implant placement, impressions were taken with scanbodies. For the measurement of both linear and angle deviations, virtual planning models and postoperative oral scans were compared using 3D software for automatic surface registration and calculations. Results Comparing TADs positioned by the direct method and the digitally planned method, a mean linear distance was found of 2.54 +/- 1.51 mm in the occlusal view and 2.41 +/- 1.33 mm in the sagittal view. No significant difference has been found between TADs positioned in the right and left palatal sides. A mean distance of 7.65 +/- 2.16 mm was found between the tip of the digitally planned TAD and the central incisors root apex. Conclusions Both direct and 3D-assisted TAD insertion methods are safe and accurate in the anterior palate. However, the use of insertion guides facilitates TAD insertion, allowing less-experienced clinicians to use palatal implants
Book review
No full text Current Therapy in Orthodontics 1st edition. By Ravindra Nanda and Sunil Kapila. St Louis: Mosby Elsevier. ISBN 9780323054607. </jats:p
Biomechanical aspects of class II mechanics with special emphasis on deep bite correction as a part of the treatment goal
No full textsj-docx-1-jpc-10.1177_21501319231162308 – Supplemental material for Mindfulness Using a Wearable Brain Sensing Device for Health Care Professionals During a Pandemic: A Pilot Program
No full textSupplemental material, sj-docx-1-jpc-10.1177_21501319231162308 for Mindfulness Using a Wearable Brain Sensing Device for Health Care Professionals During a Pandemic: A Pilot Program by Karthik Ghosh, Sanjeev Nanda, Ryan T. Hurt, Darrell R. Schroeder, Colin P. West, Karen M. Fischer, Brent A. Bauer, Shawn C. Fokken, Ravindra Ganesh, Jennifer L. Hanson, Stephanie A. Lindeen, Sandhya Pruthi and Ivana T. Croghan in Journal of Primary Care & Community Health</p
Daily Dying: The Gateway to Living Well
No full textDr. Ravi Ravindra marries deep studies in both science and comparative religions to explore important questions of our age. In this community conversation, he will help us explore how holding an understanding of our own mortality can enrich our living.
Dr. Ravindra’s spiritual search has led him to the teachings of J. Krishnamurti, G. I. Gurdjieff, Zen, Yoga, and a deep immersion in the mystical teachings of the Indian and Christian classical traditions. He is the author of several books on religion, science, mysticism, and spirituality, including Whispers from the Other Shore: Spiritual Search--East and West, and Science and the Sacred: Eternal Wisdom in a Changing World.
Using these lenses, Dr. Ravindra will help us explore the questions that facing our own mortality brings to the surface, both personally and culturally. Mainstream American culture has a paradoxical relationship with dying. On the one hand, our media focuses on death through violence and war, and on the other hand, although we are all moving toward death from the moment of our birth, we turn away from the intimacy of considering our own dying or the death of those we love
The use of skeletal anchorage in open bite treatment: a cephalometric evaluation
No full textThe aims of the present study were to assess the effectiveness of skeletal anchorage for intrusion of maxillary posterior teeth, to correct open bite malocclusion, and to evaluate the usage of titanium miniplates for orthodontic anchorage. Anterior open bite is one of the most difficult malocclusions to treat orthodontically. Currently, surgical impaction of the maxillary posterior segment is considered to be the most effective treatment option in adult patients. Various studies have reported the use of implants as anchorage units at different sites of midfacial bones for orthodontic tooth movement. The zygomatic buttress area could be a valuable anchorage site to achieve intrusion of maxillary posterior teeth. Ten patients, 17 to 23 years old and characterized with an anterior open bite and excessive maxillary posterior growth, were included in this preliminary study. Titanium miniplates were fixed bilaterally to the zygomatic buttress area, and a force was applied bilaterally with nine mm Ni-Ti coil springs between the vertical extension of the miniplate and the first molar buccal tube. The results showed that, with the help of skeletal anchorage, maxillary posterior teeth were intruded effectively. As compared with an osteotomy, this minimally invasive surgical procedure eased treatment and reduced treatment time and did not require headgear wear or anterior box elastics for anterior open bite correction. In conclusion, the zygomatic area was found to be a useful anchorage site for intrusion of the molars in a short period of time
Influence of inoculum volume on FHB disease severity in point-inoculated spikelets of AC Nanda and Sumai-3.
No full textInfluence of inoculum volume on FHB disease severity in point-inoculated spikelets of AC Nanda and Sumai-3.</p
Effect of varying the force direction on maxillary orthopedic protraction
No full textThe aim of this study was to examine the effect of varying the force direction on maxillary protraction. A total of 20 patients with class III maxillary retrognathism were randomly divided into two groups. Group 1 was comprised of nine patients with a mean age of 8.58 years, and group 2 was composed of 11 patients with a mean age of 8.51 years. Both groups received a cap splint-type rapid palatal expander and the screw was activated twice a day for 10 days. After the expansion procedure the face mask protraction procedure was initiated. In group 1, we applied the force intraorally from the canine region with a forward and downward direction at a 30 degrees angle to the occlusal plane. In group 2, the force was applied extraorally 20 mm above the maxillary occlusal plane. In both groups a unilateral 500 g force was applied and the patients were instructed to wear the face mask for 16 h/d for the first three months and 12 h/d for the next three months. The Wilcoxon sign rank test was used to evaluate the effect of the two different face masks, and a Mann-Whitney U-test was carried out to evaluate the differences between the two groups. The results showed that both force systems were equally effective to protract the maxilla; however, in group I we observed that the maxilla advanced forward with a counter-clockwise rotation. In group 2 we observed an anterior translation of maxilla without rotation. The dental effects of both methods were also different. The maxillary occlusal plane did not rotate in group 1, in contrast to the clockwise rotation in group 2. The maxillary incisors were proclined slightly in group 1, but in contrast they were retroclined and extruded in group 2. In conclusion, the force application from near the center of resistance of the maxilla was an effective method to prevent the unwanted side effects, such as counter-clockwise rotation of the maxilla, in group 1. The group 2 results suggest that this method can be used effectively on patients who present as class III combined with an anterior open bite
Mycotoxins concentration and FHB disease severity in AC Nanda spikelets point-inoculated with different chemotypes at (a) 7 DAI and (b) 9 DAI.
No full textMycotoxins concentration and FHB disease severity in AC Nanda spikelets point-inoculated with different chemotypes at (a) 7 DAI and (b) 9 DAI.</p
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