Orthodontic Treatment Planning Using Direct Visual Approximation Of Arch Length Discrepancy And Cephalometric Analyses,
2018
Marquette University
Orthodontic Treatment Planning Using Direct Visual Approximation Of Arch Length Discrepancy And Cephalometric Analyses, Kathleen Rouse Vaught
Master's Theses (2009 -)
Introduction: Space analysis and radiographic analyses are crucial elements in developing an orthodontic treatment plan. It is imperative that the orthodontist makes accurate measurements in order to come up with the most effective treatment options for each patient. Some practitioners refrain from direct measurements to determine arch length discrepancies and instead determine the amount of crowding by using direct visual approximation. In addition, more orthodontists do not routinely trace all cephalograms taken. If more and more orthodontists are using direct visual approximation to determine angular cephalometric measurements, it is important to assess the accuracy and reliability of these measurements. This …
Orthodontic Bond Strength Comparison Between Two Filled Resin Sealants,
2018
Marquette University
Orthodontic Bond Strength Comparison Between Two Filled Resin Sealants, James Kolstad
Master's Theses (2009 -)
Introduction: Sealants are used in orthodontics to help prevent demineralization during treatment. The objective of this study was to determine if there is a difference in the shear bond strength (SBS) between two different resin sealants bonded to teeth. Materials and Methods: Extracted human premolars (n=20/group) were randomly divided and prepared by acid etching, followed by application of primer or sealant. Group 1, the control group, used Transbond XT Primer (3M Unitek). Groups 2 and 3 were prepared with the sealants L.E.D. Pro Seal (Reliance Orthodontic Products) and Opal Seal (Opal Orthodontics) respectively. Transbond XT Adhesive was applied to a …
Effect Of Folate On Endoplasmic Reticulum Stress Caused By Hypoxia,
2018
University of the Pacific
Effect Of Folate On Endoplasmic Reticulum Stress Caused By Hypoxia, Paul Kim, Shub Dhillon, Mahsa Mortazavi, Marie M. Tolarova, Mirek Tolar
Excellence Day
Endoplasmic reticulum (ER) stress is involved in the pathogenesis of congenital cardiac defects, intrauterine growth restriction, craniofacial anomalies, and many common diseases. The purpose of this study was to test if folic acid (FA) can mitigate ER stress or improve recovery of cells from ER stress.
Changes In Airway Volume In Adult Patients Following Orthodontic Treatment With Premolar Extractions Versus Non-Extraction,
2018
University of the Pacific
Changes In Airway Volume In Adult Patients Following Orthodontic Treatment With Premolar Extractions Versus Non-Extraction, Sunny Jisun Lee, Allison Kawata, Hayoung Michael Shin, David Chambers, Joorok Park, Heesoo Oh
Excellence Day
Recent concerns about the prevalence of obstructive sleep apnea (OSA) and its negative sequelae have led to investigations of how manipulation of the dentofacial complex may affect airway problems. CBCT can be used to measure airway dimensions of patients. Extraction of premolars is indicated as part of orthodontic treatment for patients who have severe crowding or protrusion of incisors. Some have suggested that the reduction in arch circumference after premolar extraction would lead to decreased airway volume, which may predispose a patient for sleep disordered breathing (SDB). The purpose of this study was to determine whether there is a significant …
Changes In Cephalometric Measurements In Adult Patients Following Orthodontic Treatment With Premolar Extractions Versus Non-Extraction,
2018
University of the Pacific
Changes In Cephalometric Measurements In Adult Patients Following Orthodontic Treatment With Premolar Extractions Versus Non-Extraction, Byron Chou, David Dang, Adrienne Joy, David Chambers, Joorok Park, Heesoo Oh
Excellence Day
Extraction of premolars is indicated as part of orthodontic treatment for patients who have severe crowding or protrusion of incisors. CBCT can be used to locate cephalometric landmarks in 3D. The purpose of this study was to determine whether there are differences in sagittal, transverse, and vertical skeletal and dental dimensions for adult patients who were treated with premolar extractions in conjunction with orthodontic treatment compared to those who received orthodontic treatment without extractions.
Condylar Degeneration In Patients With Dental Open Bite Versus Skeletal Open Bite Utilizing Cbct,
2018
University of the Pacific
Condylar Degeneration In Patients With Dental Open Bite Versus Skeletal Open Bite Utilizing Cbct, Alex Rauchle, Alston Trinh, Linda Phi, Brad Albertson, Joorok Park, Heesoo Oh
Excellence Day
Idiopathic condylar resorption (ICR) is a condition in which either one or both condyles undergo degeneration. Bilateral TMJ involvement presents as a clockwise rotation of the mandible in the posterior-inferior direction, resulting in an anterior open bite. The purpose of the study was to assess TMJ condylar degeneration in dental open bites compared to skeletal open bites.
Authentic Leadership In Illness Blogs: What We Can Learn From Jaw Surgery Bloggers,
2018
Bond University
Authentic Leadership In Illness Blogs: What We Can Learn From Jaw Surgery Bloggers, Marilyn Mitchell
Marilyn Mitchell
This paper argues that authentic leadership theory provides a useful model for explaining the communication of orthognathic or jaw surgery bloggers. Previous studies concluded that illness blogs can empower patients, but no research considered any leadership theory as a model for blogging. For this study, 24 publicly available blogs were analyzed to find expressions that demonstrated each of the four components of authentic leadership, which are self-awareness, relational transparency, communication based upon an internalized moral perspective, and balanced processing of information. The research also analyzed blog comments to find expressions that demonstrated followers’ development of the positive psychological capacities of …
Nonsurgical Treatment Of An Adult Patient With Bilateral Scissors-Bite And Class Ii Division 2 Malocclusion,
2018
Dr. Su’s Teamwork Orthodontic Center, Taipei, Taiwan
Nonsurgical Treatment Of An Adult Patient With Bilateral Scissors-Bite And Class Ii Division 2 Malocclusion, Wei-Cheng Fu, Yu-Ling Cheng, Chia-Yi Pan, Ming-Juean Su, Yuen-Yung Tsang
Taiwanese Journal of Orthodontics
This report illustrates a 20 years old female presented a Class II division 2 malocclusion with deep overbite, gummy smile, canted maxillary anterior occlusal plane, low mandibular plane angle and bilateral scissors-bite. Angle's Class II division 2 malocclusion needs to be treated by correcting the inclination of maxillary incisors and lower lip posture. Selective bonding of maxillary anterior teeth and molars were performed to level the occlusal plane and gingival line, thus creating a consonant smile arc. Disocclusion was necessary by using a removable bite plate. Maxillary second premolars and second molars, lower third molars were extracted. The aim was …
Two-Phase Management In A Developing Class Iii Malocclusion With The Aid Of Rapid Maxillary Expander And Facemask,
2018
Department of Orthodontics, Changhua Christian Hospital, Taiwan
Two-Phase Management In A Developing Class Iii Malocclusion With The Aid Of Rapid Maxillary Expander And Facemask, Chih-Hsiang Chan, Chin-Yun Pan, Jung-Hsuan Cheng
Taiwanese Journal of Orthodontics
A 7-year 10-month-old boy with skeletal Class III malocclusion was treated in two phases. In phase one, rapid maxillary expansion (RME) and facemask was applied for early intervention in a cervical vertebral maturation (CVM) stage of CS2. After RME and facemask treatment, decompensation of maxillary and mandibular incisors was noted, as well as an improved skeletal Class III jaw relationship with reduction of the A point-nasion-B point (ANB) angle. Later in phase two, a full mouth fixed edgewise appliance was begun to correct the details of malocclusion. The total treatment duration was 5 years and 5 months (stage 1, 9 …
Cephalometric Analysis Of Growth And Treatment With The Structural Technique: A Review Of Its Background And Clinical Application,
2018
Clinical Professor (Emeritus), Orofacial Sciences, Division of Orthodontics, University of California, San Franciso, USA
Cephalometric Analysis Of Growth And Treatment With The Structural Technique: A Review Of Its Background And Clinical Application, Ib Leth Nielsen
Taiwanese Journal of Orthodontics
The aim of this review is to provide the fundamental basis and scientific evidence for the so-called “structural technique.” In this article we will discuss the benefits and challenges of this technique as well as present and compare it to the so-called “best fit” technique. Furthermore, we will introduce the three parts of the analysis, most commonly used for evaluation of growth and treatment changes. The “structural technique” developed by Professor Arne Björk and his associate Dr. Vibeke Skieller is the result of their longitudinal studies using metallic implants as biological markers. These studies showed that most of the information …
Skeletal, Dentoalveolar, And Periodontal Changes Of Skeletally Matured Patients With Maxillary Deficiency Treated With Microimplant‐Assisted Rapid Palatal Expansion Appliances: A Pilot Study,
2018
West Virginia University
Skeletal, Dentoalveolar, And Periodontal Changes Of Skeletally Matured Patients With Maxillary Deficiency Treated With Microimplant‐Assisted Rapid Palatal Expansion Appliances: A Pilot Study, Peter Ngan, Uyen Kelly Nguyen, Tung Nguyen, Timothy Tremont, Chris Martin
Faculty & Staff Scholarship
Introduction: Microimplant‐assisted rapid palatal expansion (MARPE) has recently been offered to adult patients for correcting maxillary transverse deficiency. However, there is limited information in the literature on the success of this appliance and its skeletal and dental effects on skeletally matured patients. The purpose of this study was to investigate the immediate skeletal, dentoalveolar, and periodontal response to MARPE appliance using cone‐beam computed tomography in a skeletally matured patient as assessed by the cervical vertebral maturation method. Materials and Methods: Eight consecutively treated patients (2 females, 6 males; mean age of 21.9 ± 1.5 years) treated with a maxillary skeletal …
Do We Really Know Where The Molar Teeth Are On The Lateral Headfilm? A Recommendation For A More Precise Way To Locate The Molars On The Lateral Headfilm,
2018
Clinical Professor (Emeritus), Orofacial Sciences, Division of Orthodontics, University of California, San Franciso, USA
Do We Really Know Where The Molar Teeth Are On The Lateral Headfilm? A Recommendation For A More Precise Way To Locate The Molars On The Lateral Headfilm, Ib Leth Nielsen, Chung-Chen Jane Yao
Taiwanese Journal of Orthodontics
Objective: The aim of this study demonstrates an improved method for determining the exact molar positions on the lateral headfilm. Previously this position was located by visual inspection of the headfilm. We are testing the precision of visual determination compared to using occlusogram measurements. Materials and Methods: In a sample of 34 subjects treated for Class II malocclusion, we examined the pre and post treatment headfilms and compared molar positions determined by visualization with occlusogram measurements. Results: Our data showed that in 15% of the cases there were no differences between the two methods, in 50% the differences were 1 …
Two-Phase Orthodontic Treatment In Class Ii Division 1 Malocclusion,
2018
Division of Orthodontics, Department of Dentistry, Changhua Christian Hospital Changhua, Taiwan
Two-Phase Orthodontic Treatment In Class Ii Division 1 Malocclusion, Wen-Hui Hsieh, Hui-I Chen, Chin-Hsiang Chan
Taiwanese Journal of Orthodontics
A two-phase treatment comprising functional orthopedic therapy and fixed orthodontic therapy is often proposed for pubescent patients with Class II division 1 malocclusion. Mandibular retrognathism is a more common underlying cause of Class II skeletal discrepancy than the maxillary prognathism. In such cases, an activator is a widely used functional orthopedic appliances to enhance the mandibular growth. After resolving the sagittal problem by using the functional appliances, the biomechanical considerations of the anchorage requirement could be simplified in the second phase fixed appliance therapy, and the total treatment duration could be shorter. This case report describes a two-phase orthodontic treatment …
Application Of Combined Maxillary Skeletal Expander And Facemask Treatment With An Alternating Rapid Maxillary Expansion And Constriction Protocol In A Female Adolescent With A Class Iii Skeletal Relationship,
2018
Division of Orthodontics and Dentofacial Orthopedics, Department of Dentistry, National Taiwan University Hospital; Department of Orthodontics, Taipei Mackay Memorial Hospital
Application Of Combined Maxillary Skeletal Expander And Facemask Treatment With An Alternating Rapid Maxillary Expansion And Constriction Protocol In A Female Adolescent With A Class Iii Skeletal Relationship, Li-Fang Hsu, Kai-Wen Yu, Chung-Ji Liu, Jenny Zwei-Chieng Chang
Taiwanese Journal of Orthodontics
A 13-year-old female patient presented with a chief complaint of anterior crossbite and chin prognathism. She had a skeletal Class III relationship with a brachyfacial vertical pattern. Anterior crossbite exhibited maximum intercuspation–centric relation shift, leading to an edge to-edge incisal position. On the basis of this patient’s chronological age, it was too late to perform conventional early treatment of Class III cases, which includes rapid palatal expansion combined with facemask or chincap therapy. After discussing treatment options with the patient and her parents, we decided to try combined maxillary skeletal expander and facemask treatment with an alternating rapid maxillary expansion …
Assessment Of Midpalatal Suture Maturation For Orthodontic Diagnosis And Treatment Planning,
2018
Department of Orthodontics, Dental Clinics, Kaohsiung Medical University Hospital, Kaohsiung Taiwan
Assessment Of Midpalatal Suture Maturation For Orthodontic Diagnosis And Treatment Planning, Chiao-Yi Kao, Chin-Yun Pan, Hong-Po Chang, Yu-Chuan Tseng
Taiwanese Journal of Orthodontics
Accurately estimating the maturation of a midpalatal suture can improve the success rate of a maxillary expansion procedures. The craniofacial sutural maturation is an essential consideration in the choice between non-surgical and surgical methods of maxillary expansion. The maturation of a midpalatal suture can be assessed in several ways. This article reviews the literatures on the assessment of midpalatal suture maturation and its importance for orthodontic diagnosis and treatment planning.
Surgical Occlusion Setup In Orthognathic Surgery Using Surgery-First Approach For Skeletal Class Iii Deformity: A Systematic Review,
2018
Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Linkou, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan
Surgical Occlusion Setup In Orthognathic Surgery Using Surgery-First Approach For Skeletal Class Iii Deformity: A Systematic Review, Shu Hsien Lo, Yu-Fang Liao
Taiwanese Journal of Orthodontics
Objective: Surgery-first orthognathic surgery is increasing in popularity because of reduced treatment time, efficient tooth decompensation, and early improvement in facial esthetics. However, it remains difficult due to the surgical occlusion setup. We systematically reviewed the literature in order to determine the guidelines used for surgical occlusion setup in orthognathic-first surgery for skeletal Class III deformity. Material and Methods: The literature was searched using PubMed, Medline (Ovid), Cochrane Library, Web of Science and Google Scholar databases from January 1931 to June 2017. We limited the search to publications in English. Two independent investigators used specific inclusion and exclusion criteria to …
Orthodontic Correction Of Class Ii Division 2 Malocclusion,
2018
epartment of Orthodontics, Dental Clinics, Kaohsiung Medical University Hospital, Kaohsiung Taiwan
Orthodontic Correction Of Class Ii Division 2 Malocclusion, Kun-Feng Lee, Yu-Chuan Tseng, Hong-Po Chang, Szu-Ting Chou
Taiwanese Journal of Orthodontics
Class II division 2 malocclusion has low incidence rate of only 1% in Taiwan. The criteria of diagnosis and treatment consideration is more challenging as compared to other types of malocclusions. The consideration of orthodontic biomechanics could be sophisticated in facing the correction of the molar relationship and the angulation of the anterior teeth. This article discusses the clinical diagnosis and treatment mechanics of Class II division 2 malocclusion.
Maxillary Expansion: From Past To Present,
2018
Department of Orthodontics, Dental Clinics, Kaohsiung Medical University Hospital, Kaohsiung Taiwan
Maxillary Expansion: From Past To Present, Shih-Chieh Chen, Hong-Po Chang, Yu-Chuan Tseng
Taiwanese Journal of Orthodontics
Maxillary expansion is a common treatment option for upper crowded dentition and posterior lingual crossbite in children and adolescents. As the midpalatal suture is not yet completely interlocked at these ages, the midpalatal suture can be opened via maxillary expansion to increase the length and width of the upper arch. This solves the problems of posterior crossbite and upper crowded dentition. Since the midpalatal suture is stiff in adults, many clinicians believe that adults require surgical intervention to achieve maxillary expansion. However, recent reports indicated that several cases have been treated successfully with the aid of TADs for maxillary expansion. …
Clinical Use Of Contemporary Clear Aligner Therapy,
2018
Orthodontic Department, Chung Shan Medical University Hospital, Taichung, Taiwan; College of Oral Medicine, Chung Shan Medical University, Taichung, Taiwan
Clinical Use Of Contemporary Clear Aligner Therapy, Chun-Te Ho, Chien-Wei Chao, Chia-Tze Kao
Taiwanese Journal of Orthodontics
Clear aligner therapy (CAT) is an increasing popular alternative to conventional bracket therapy. This review summarized contemporary data regarding the history of CAT. The information regarding the advantages and disadvantages of CAT, biomechanical force and biological considerations, controlling orthodontic tooth movement (OTM) would be discussed in this review. The CAT is well accepted for their esthetics, comfort, good care of oral hygiene and periodontal status and suitable for interdisciplinary dental treatment. However, CAT was also considered as difficult compliance for the patients, uneasy to be handled by clinicians, unprecise root movement, difficult for the postoperative fixation in cases receiving orthognathic …
Correction Of Bimaxillary Protrusion By Extraction Of Incisors And Canine Substitution,
2018
Department of Orthodontics, Chi Mei Medical Center, Tainan City, Taiwan
Correction Of Bimaxillary Protrusion By Extraction Of Incisors And Canine Substitution, Chung-Li Wang, Chun-Liang Kuo, I-Hua Liu, Chun-Hsiu Yang
Taiwanese Journal of Orthodontics
The maxillary six anterior teeth play important roles in esthetics and oral function. Treatments for missing maxillary lateral incisors either by space closure or space preservation need multiple clinical considerations. This case report presents an orthodontic treatment of a 33-year-old female patient who had a convex profile with lip incompetence, missing lower molars and poor prognosis of bilateral maxillary lateral incisors. The atypical extraction in treatment plan consisted of removing lateral incisors instead of premolars to retract the anterior teeth. The improvement of facial profile and lip posture was achieved and the anterior teeth esthetics was further rehabilitated with prosthesis. …
