Angle Society to Celebrate Diamond Anniversary August 21–25, 2005
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Enhancing the Predictability of Clear Aligners
Enhancing Predictability of Clear Aligners Bowman DRASTIC PLASTIC: ENHANCING THE PREDICTABILITY OF CLEAR ALIGNERS S. Jay Bowman ABSTRACT Once limitations of clear aligner treatments were identified, conceptualizing techniques to improve the predictability in producing desired results was the next logical step. A variety of concepts, methods, and adjuncts have subsequently been introduced to enhance the efficiency and effectiveness of clear aligners. As a consequence, the scope of biomechanics and type of malocclusions that can be more predictably treated has increased. As one example, the inclusion of miniscrew temporary skeletal anchorage has permitted the addition of direct and indirect anchorage to support and control more predictable programmed tooth movements with aligners. After reviewing the reported shortcomings of plastic aligners, this chapter explores possibilities for improving predictability of aligner therapy. KEY WORDS: Clear Aligners, Miniscrews, Bootstrap Elastic, Attachments, Bonded Buttons INTRODUCTION It has been 20 years since the introduction of a commercialized clear aligner product to the orthodontic marketplace. Based on suggestion by Harold D. Kesling over 50 years earlier, Invisalign and later, increasingly numerous propriety alternatives have come to pass; including the exponential growth of so-called direct-to-consumer (DTC or DIY) offerings [1]. From the original questions of whether even “acceptable” results could be obtained from a sequence of aligners, these queries have now evolved into: Is an orthodontist even needed to be interjected between the manufacturer’s plastic and their “customers?” So, the idea of moving teeth with plastic was nothing new, but the use of software to attempt to predict desired tooth movement and the associated 3D representations of individual tooth position were innovative. -
V September 2006
CORRELATING POSITION OF HYOID BONE AND MANDIBLE TO THIRD CERVICAL VERTEBRA IN PATIENTS WITH CLASS I, CLASS II AND CLASS III SKELETAL MALOCCLUSION – A CEPHALOMETRIC STUDY Dissertation Submitted to THE TAMIL NADU DR.M.G.R. MEDICAL UNIVERSITY Towards the partial fulfillment for the degree of MASTER OF DENTAL SURGERY BRANCH – V ORTHODONTICS SEPTEMBER 2006 Certificate This is to certify that Dr. VIJJAYKANTH Post Graduate Student (2003-2006) in the Department of Orthodontics, Tamilnadu Government Dental College & Hospital, Chennai has done this dissertation titled “CORRELATING POSITION OF HYOID BONE AND MANDIBLE TO THIRD CERVICAL VERTEBRA IN PATIENTS WITH CLASS I, CLASS II AND CLASS III SKELETAL MALOCCLUSION – A CEPHALOMETRIC STUDY” under our guidance and supervision in partial fulfillment of the regulations laid down by the Tamilnadu Dr.M.G.R. Medical University, Chennai for M.D.S., Branch – V Orthodontics, Degree Examination. Dr.L.Muthusamy, M.D.S., Dr.W.S.Manjula, M.D.S., Professor and Head, Additional Professor, Department of Orthodontics Department of Orthodontics Tamilnadu Govt. Dental College and Hospital, Tamilnadu Govt. Dental College and Hospital, Chennai-600 003. Chennai-600 003. Dr.C. Kumaravelu, M.D.S., Principal Tamilnadu Govt. Dental College and Hospital, Chennai-600 003. C O N T E N T S PAGE NO. 1 INTRODUCTION 01 2 AIMS AND OBJECTIVES 04 3 REVIEW OF LITERATURE 05 4 MATERIALS AND METHODS 24 5 RESULTS 29 6 DISCUSSION 41 7 SUMMARY AND CONCLUSION 50 8 BIBLIOGRAPHY 52 LIST OF BAR DIAGRAMS Bar Diagram Bar Diagram Title No 1. Cephalometric mean and standard deviation for each group Cephalometric mean values for male and female subjects for each 2. -
Extractions, Retention and Stability: the Search for Orthodontic Truth Sheldon Peck1,2
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Carolina Digital Repository European Journal of Orthodontics, 2017, 109–115 doi:10.1093/ejo/cjx004 Advance Access publication 23 February 2017 Original article Downloaded from https://academic.oup.com/ejo/article-abstract/39/2/109/3045908 by University of North Carolina at Chapel Hill user on 16 August 2019 Extractions, retention and stability: the search for orthodontic truth Sheldon Peck1,2 1Department of Orthodontics, University of North Carolina, Chapel Hill, NC, USA 2Historian, The Edward H. Angle Society of Orthodontists Correspondence to: Sheldon Peck, 180 Beacon Street, Boston, MA 02116, USA. E-mail: [email protected] Adapted from the 2016 E. Sheldon Friel Memorial Lecture, presented 13 June 2016 at the 92nd Congress of the European Orthodontic Society, Stockholm, Sweden. Summary Background and objectives: From the beginnings of modern orthodontics, questions have been raised about the extraction of healthy permanent teeth in order to correct malocclusions. A hundred years ago, orthodontic tooth extraction was debated with almost religious intensity by experts on either side of the issue. Sheldon Friel and his mentor Edward H. Angle both had much to say about this controversy. Today, after significant progress in orthodontic practice, similar arguments are being voiced between nonextraction expansionists and those who see the need for tooth extractions in some orthodontic patients. Furthermore, varying concepts of mechanical retention of -
Dr. Edward Hartley Angle, the Founder of Modern Orthodontics – Part I Dr
HISTORY OF MEDICINE Ref: Ro Med J. 2020;67(4) DOI: 10.37897/RMJ.2020.4.19 DR. EDWARD HARTLEY ANGLE, THE FOUNDER OF MODERN ORTHODontics – pART I Dr. Edward Hartley Angle, fondatorul ortodonţiei moderne – partea I Asist. Univ. Dr. Irina Adriana Beuran1, Conf. Dr. Ileana Ionescu1, Şef Lucr. Dr. Gabriela Tănase1, Asist. Univ. Dr. Viorel Ştefan Perieanu1, Şef Lucr. Dr. Mădălina Maliţa1, Asist. Univ. Dr. Magdalena Natalia Dina1, Asist. Univ. Dr. Oana Eftene1, Asist. Univ. Dr. Iuliana Babiuc1, Dr. Raluca Costea2, Asist. Univ. Dr. Radu Costea1, Şef Lucr. Dr. Narcis Marcov1, Asist. Univ. Dr. Maria Glencora Costache1, Conf. Dr. Corina Marilena Cristache1, Şef Lucr. Dr. Mihaela Chirilă1, Conf. Dr. Mihai Burlibaşa1, Asist. Univ. Dr. Mădălina Violeta Perieanu1 1 Universitatea de Medicină şi Farmacie „Carol Davila“, Bucureşti, România 2 Cabinet stomatologic privat, Bucureşti, România ABSTRACT Edward Hartley Angle was an eminent American scientist, dentist, great inventor, being rightly considered to be the father of modern orthodontics. The great American scientist was the author of an impressive number of patents (46) and was the coordinator of 7 editions of some impressive Orthodontic Treatises. Thus, in this material, which we structured in 2 distinct parts, we tried to present as concisely as possible the most important data from the biography of Dr. Edward Hartley Angle. Keywords: orthodontics and dento-facial orthopedics, dentistry, inventor REZUMat Edward Hartley Angle a fost un eminent om de ştiinţă american, medic stomatolog, inventator de foarte mare anvergură, fiind considerat, pe drept cuvânt, a fi părintele ortodonţiei moderne. Marele savant american a fost autor al unui număr impresionant de brevete de invenţie (46) şi a fost coordonatorul a 7 ediţii ale unor impre- sionante tratate de ortodonţie. -
Association Between the British Standards Institute’S Incisor Classification of Malocclusion and Angle’S Classification of Malocclusion - an Analytical Study
ASSOCIATION BETWEEN THE BRITISH STANDARDS INSTITUTE’S INCISOR CLASSIFICATION OF MALOCCLUSION AND ANGLE’S CLASSIFICATION OF MALOCCLUSION - AN ANALYTICAL STUDY Dissertation Submitted To THE TAMIL NADU DR. M.G.R. MEDICAL UNIVERSITY In Partial Fulfillment for the Degree of MASTER OF DENTAL SURGERY BRANCH V ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS MARCH 2010 CERTIFICATE This is to certify that the dissertation entitled “Association between The British standards institute’s Incisor classification of malocclusion and Angle’s classification of malocclusion - An analytical study” done by Dr.V.THAILAVATHY., post graduate student (M.D.S), Orthodontics and dentofacial orthopedics (branch V), Tamil Nadu Govt. Dental College and Hospital, Chennai, submitted to the Tamil Nadu Dr.M.G.R.Medical University in partial fulfillment for the M.D.S. degree examination (March 2010) is a bonafide research work carried out by her under my supervision and guidance. GUIDED BY DR.M.C.SAINATH . M.D.S Professor.dept of orthodontics Tamilnadu govt.Dental college and Hospital,chennai Dr. W.S.MANJULA, M.D.S., Dr.K.S.G.A. NASSER, M.D.S., Professor and Head of Department Principal, Dept. of Orthodontics, TNGDC&H TNGDC & H Chennai- 3 Chennai DECLARATION I, Dr.V.Thailavathy, do hereby declare that the dissertation titled “Association between The British standards institute’s Incisor classification of malocclusion and Angle’s classification of malocclusion.- An analytical study “ was done in the Department of Orthodontics, Tamil Nadu Government Dental College & Hospital, Chennai 600 003. I have utilized the facilities provided in the Government Dental College for the study in partial fulfillment of the requirements for the degree of Master of Dental Surgery in the specialty of Orthodontics and Dentofacial Orthopedics (Branch V) during the course period 2007-2010 under the conceptualization and guidance of my dissertation guide, Professor Dr. -
Treatment of Class II Maxillary Retrusion Case Using Miniscrew (Nonextraction Treatment of Adolescent Patient)
Case Report Treatment of Class II Maxillary Retrusion Case Using Miniscrew (Nonextraction Treatment of Adolescent Patient) Fulya Ozdemir, DDS, PhD;1 Volkan Osman Uyar, DDS, PhD;2 Feyza Ulkur, DDS, PhD3 ABSTRACT Objective: This case report describes the protocol employed in the treatment of a patient with Class II subdivision malocclusion, with sagittal, transverse, and occlusal disharmonies. Materials and Methods: Treatment included the expansion of the maxilla with a banded Hyrax appliance over a period of 14 days. After a retention period, the device was removed and a stainless steel transpalatal arch was attached. The maxillary arch was bonded with MBT prescription brackets, and distalization of the left maxillary first molar commenced on a 0.016 3 0.022-inch stainless steel archwire supported by a miniscrew for indirect anchorage. After 4.7 mm of molar distalization, a Nance appliance with a bite plane was placed, and the mandibular arch was bonded to continue treatment, which lasted 18 months. Mandibular and maxillary fixed retainers were placed at the end of active treatment. Results: Pretreatment and posttreatment records showed that vertical and sagittal skeletal cephalometric findings were stable. Conclusion: A nonextraction and miniscrew anchorage approach for distalization is an effective treatment option for dental Class II correction. (Turkish J Orthod 2015;27:117–127) KEY WORDS: Class II, miniscrew, distalization INTRODUCTION Treatment choices to manage a Class II subdivi- sion malocclusion could involve extractions, a In 1899, Edward Angle described 3 classes of nonextraction approach, or surgery depending on malocclusion based on the anteroposterior occlusal the nature and extent of the problem. -
Orthodontics and Maxillofacial Surgery: an Interdisciplinary Team
www.medigraphic.org.mx Revista Mexicana de Ortodoncia Vol. 2, No. 3 July-September 2014 pp 200-206 CASE REPORT Orthodontics and maxillofacial surgery: an interdisciplinary team. Case Report Ortodoncia y cirugía maxilofacial: un equipo multidisciplinario. Presentación de un caso clínico Wendy Gutiérrez Guerrero,* Isaac Guzmán Valdivia§ ABSTRACT RESUMEN Dentofacial anomalies cause disharmony in the maxilla and the Reporte de caso: Las alteraciones dentomaxilofaciales propician mandible with consequences in facial esthetics and masticatory una desarmonía en el maxilar y la mandíbula, distorsionando la es- function. As surgeries and osteotomies became more complex tética facial y la función masticatoria. A medida que las intervencio- the need for cooperation between the orthodontist and the nes y osteotomías fueron siendo más complejas se hizo cada vez maxillofacial surgeon became more evident. A case report of a 1 más evidente la necesidad de la colaboración del ortodoncista con year and 8 months treatment time of an 18-year-old patient, with el cirujano maxilofacial. Se presenta en este artículo el diagnóstico skeletal class III malocclusion, anterior crossbite and posterior y tratamiento durante 1 año 8 meses de un paciente de 18 años unilateral crossbite, upper incisor proclination and lower incisor con maloclusión esquelética clase III, mordida cruzada anterior y retroclination, and vertical growth is hereby presented. A treatment posterior uniteral, proinclinación dental superior y retroinclinación plan was set out with surgical-orthodontic -
The Effectiveness of Tipback Mechanics for Correction of Class II Malocclusion" (2014)
University of Connecticut OpenCommons@UConn Master's Theses University of Connecticut Graduate School 7-3-2014 The ffecE tiveness of Tipback Mechanics for Correction of Class II Malocclusion Nandakumar Janakiraman University of Connecticut School of Medicine and Dentistry, [email protected] Recommended Citation Janakiraman, Nandakumar, "The Effectiveness of Tipback Mechanics for Correction of Class II Malocclusion" (2014). Master's Theses. 632. https://opencommons.uconn.edu/gs_theses/632 This work is brought to you for free and open access by the University of Connecticut Graduate School at OpenCommons@UConn. It has been accepted for inclusion in Master's Theses by an authorized administrator of OpenCommons@UConn. For more information, please contact [email protected]. The Effectiveness of Tipback Mechanics for Correction of Class II Malocclusion. Nandakumar Janakiraman B.D.S. Government Dental College, Bangalore University, 1997. M.D.S. Government Dental College, NTR University, 2002. A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Masters of Dental Science at the University of Connecticut 2014 i APPROVAL PAGE Master of Dental Science Thesis The Effectiveness of Tipback Mechanics for Correction of Class II Malocclusion Presented by Nandakumar Janakiraman, BDS, MDS Major Advisor________________________________________________ Flavio A. Uribe DDS, MDentSc Associate Advisor_____________________________________________ Ravindra Nanda BDS, MDS, PhD Associate Advisor_____________________________________________ David Shafer DMD University of Connecticut 2014 ii Acknowledgments I want to thank my parents, my wife and kids for all the sacrifices they make to make my dream come true. I want to thank Dr. Nanda, Dr. Uribe and School of Dental Medicine, University of Connecticut, for their support, encouragement, constant guidance and making my dream of becoming an Orthodontist in US. -
Review Paper INTRAORAL APPROACH to MOLAR
Received : 08‑09‑15 Review completed : 17‑11‑15 Review Paper Accepted : 01‑12‑15 INTRAORAL APPROACH TO MOLAR DISTALIZATION: A REVIEW Piyush Bolya, * Bhoopendra Singh Rajput, ** Gunjan Tiwari, *** Hitender Singh Yadav, † Ashish Choubey, †† Sandeep Kumar Swarnkar ††† * Assistant Professor, Department of Orthodontics & Dentofacial Orthopaedics, Darshan Dental College & Hospital, Udaipur, Rajasthan, India ** Assistant Professor, Department of Oral and Maxillofacial Surgery, RR Dental College, Udaipur, Rajasthan, India *** Consultant Orthodontist, Smile Experts, Bhopal, Madhya Pradesh, India † Post Graduate Student, Department of Pediatric and Preventive Dentistry, Maharana Pratap College of Dentistry and Rc, Gwalior, Madhya Pardesh, India †† Post Graduate Student, Department of Conservative Dentistry and Endodontics, Maharana Pratap College of Dentistry and Rc, Gwalior, Madhya Pardesh, India ††† Post Graduate Student, Department of Pediatric and Preventive Dentistry, Maharana Pratap College of Dentistry and Rc, Gwalior, Madhya Pardesh, India _________________________________________________________________________ ABSTRACT inappropriate and unacceptable. According to To extract or not to extract has been a ley Moyers (1988)[2] the nonextraction treatment question in past for decades. Traditional upper modalities for Class II cases resulted where the molar distalization techniques require patient malocclusion is due to aggravation of dental co-operation with the headgear or elastics. symptoms and has anterior posterior and vertical Recently, -
Treatment of Class II, Division 2 Malocclusion in Adults: Biomechanical Considerations
Treatment of Class II, Division 2 Malocclusion in Adults: Biomechanical Considerations FLAVIO URIBE, DDS, MDS RAVINDRA NANDA, BDS, MDS, PHD reatment of Class II malocclusion in adoles- inclined upper central and lower incisors, and Tcents has always relied on growth modifica- labially flared maxillary lateral incisors. These tion. The majority of treatment modalities, such patients also tend to exhibit problems with the as functional appliances, are directed at stopping upper and lower occlusal planes, such as deep or redirecting maxillary growth and simultane- curves of Spee. The soft-tissue drape of the lips ously stimulating mandibular growth.1-3 On the often conforms to the malocclusion, so that the other hand, in adult patients with severe Class II lips may be redundant with a deep mentolabial malocclusions, generally involving extremely sulcus. Because of the deep bite and supraerup- deficient mandibles, orthognathic surgery is tion of the maxillary incisors, the gingival mar- often the only possible treatment. gins of the maxillary anterior teeth are usually Although camouflage may be attempted by malaligned, and the lingually inclined mandibu- extracting premolars, the soft-tissue objectives lar incisors may have excessively high gingival may be impossible to meet. Even so, a recent margins (Fig. 1). study has shown that patient satisfaction with camouflage treatment was similar to that achieved with surgical mandibular advance- ment.4 In Class II patients with mild-to-moderate skeletal discrepancies, dental compensation may well be the treatment of choice. Common treat- ment procedures for such patients include flaring of incisors, interproximal tooth reduction, and extractions. Treatment of an adult Class II patient requires careful diagnosis and a treatment plan involving esthetic, occlusal, and functional con- siderations.5-7 The treatment objectives must include the chief complaint of the patient, and A the mechanics plan should be individualized based on the specific treatment goals. -
Edward Hartley Angle
In italiano, per favore En español, por favor Dr. Gabriele Florìa DDS Original Article VJO editor Published on 15-12-00 english translation by Dr. Andrea Marinelli and Dr. Susan Eslambolchi Edward Angle is considered to be the "father of orthodontics" by all orthodontists. His polyhedral personality allowed ideas, theories and innovations that were modified in small part by This author’s ingeniousness expressed itself in his publications scientific and technical progress. and in many appliances conceived and improved by him, signs of his great passion in our speciality. Edward Hartley Angle In occasion of the "9th International Medical Congress" in 1887, he presented "The Angle System of Regulation and Retention" after which he made many other publications. In these, he disagreed with Farrar and his intermittent force theory, while underlining the importance of post-treatment retention and condemning orthodontic extractions. The palatal expander, conceived by him, became very famous and popular. In his article published in Dental Cosmos in 1899 he wrote that it is better to talk about a "malocclusion” rather than “dental irregularity”. He explained: “There will not be irregularity of teeth if the occlusion is perfect. So first the treatment will consider the malocclusion and will try to eliminate it.” He was born in Herrick in Pennsylvania in 1855 and attended the local College of Dentistry where he graduated in 1878. He dedicated himself to In "Some Basic Principles in Orthodontia" (International Dental orthodontics immediately working first in Towanda Journal, 1903), Angle explained the principles on which and than Minneapolis. In 1892 he was appointed orthodontics should be founded. -
A Biographical Portrait of Edward Hartley Angle, the First Specialist in Orthodontics, Part 1
JDO 63 CLASSICS REVISITED A Biographical Portrait of Edward Hartley Angle, Part 1 JDO 63 A Biographical Portrait of Edward Hartley Angle, the First Specialist in Orthodontics, Part 1 Abstract Much of what is known about Edward Hartley Angle, MD, DDS (1855–1930), the acknowledged “father” of modern orthodontics, has been derived from secondary sources, accounts written by his contemporaries and others. New historical research using primary sources, largely the recently published four-volume sourcebook of Angle’s correspondence and business transactions from 1899 to 1910, gives a broad view of the personality, interests, and activities of this prime mover in the evolution of orthodontics. This three- part article highlights aspects of Edward H. Angle’s life and persona, based on new findings culled from his letters and other personal documents. Part 3 presents a biographical chronology of Angle’s remarkable life. (Reprinted from News & Trends in Orthodontics 2009;16:8-14, originally reprinted with permission from Angle Orthod 2009;79:1021-1027. Copyright 2009).(J Digital Orthod 2021;63:78-88) “To arrive at a just estimate of a renowned man’s character one must judge it by the standards of his time, not ours.” Mark Twain, Personal Recollections of Joan of Arc, 1896 Part I Old letters often tell rich history. At certain junctures science and a specialty.” This inventive doctor gave in the historical record, details found in the letters malocclusion the primacy and order it needed. He of visionary leaders reveal important developments also created the first educational program to train better than a simple recounting of events can.