Consideration Of Therapy In Angle Class I Malocclusion With Anterior Open Bite,
2022
Division of Orthodontics, Taipei Municipal Wanfang Hospital, Taipei, Taiwan, ROC
Consideration Of Therapy In Angle Class I Malocclusion With Anterior Open Bite, Yu-Hsiang Lin, Yi-Sheng Lee, Chih-Peng Su, Hsin-Kuang Chen, Ming-Shi Tsai, Sheng-Yang Lee
Taiwanese Journal of Orthodontics
Anterior open bite is a common and challengeable malocclusion. To manage Angle Class I molar relationship in adult cases with several problems, such as high mandibular plane angle, maxillary canting, anterior open bite, discrepancy of anterior Bolton ratio and bilateral posterior crossbite, we should choose therapeutic method carefully. It is not necessary to improve occlusion and profile with orthognathic surgery. A case of an adult woman with tongue thrust had the chief complaint of anterior open bite. The principle of orthodontic treatment without orthognathic surgery is the occlusal plane change and vertical control to achieve the forward rotation of mandible …
Correction Of Class Ii Malocclusion And Lower Premolar Impaction Of An Adult Patient With Tads – A Case Report,
2022
Division of Orthodontics, Department of Dentistry, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
Correction Of Class Ii Malocclusion And Lower Premolar Impaction Of An Adult Patient With Tads – A Case Report, Chien-Cheng Chen, Shih-Syun Syu, Yi-Horng Chen
Taiwanese Journal of Orthodontics
Dentoalveolar ankyloses of primary tooth sometimes cause impaction of its successor tooth. In this condition, extraction of the ankylosed primary tooth and orthodontic forced eruption of the impacted permanent tooth may be a choice of treatment. In this case report, we present a 23-year-old female with Angle Class II malocclusion, whose mandibular left 2nd premolar impacted due to ankyloses of its primary tooth. She also had dental arch crowding and gummy smile problems. The patient received full-mouth orthodontic non-extraction treatment combine using TADs. As a result, her problems of malocclusion and gummy smile improved.
Orthodontic Correction Of Severe Gummy Smile In Class Ii Division 1 Malocclusion: A Case Report,
2022
Division of Orthodontics and Dentofacial Orthopedics, Department of Dentistry, National Taiwan University Hospital
Orthodontic Correction Of Severe Gummy Smile In Class Ii Division 1 Malocclusion: A Case Report, Yu-Jen Hsu, Sheng-Chin Lin, Wen-Pei Wong, Emily Yi-Min Liu, Pi-Huei Liu, Jenny Zwei-Chieng Chang, Yi-Jane Chen
Taiwanese Journal of Orthodontics
Class II division 1 malocclusion with deepbite and gummy smile can be treated in several ways. Adequate intrusion and retraction of maxillary incisors may improve the smiling appearance as well as the facial profile. However, anterior torque control can be challenging. Herein, we report a patient with 5 mm gummy smile, where the final esthetic improvement was achieved by combined use of posterior and anterior miniscrews. The 19-year-old women presented with lip protrusion, convex profile, retrusive chin, excessive gingival display, and a Class II division 1 malocclusion with mild crowding in the upper and lower dentition (1~2 mm). Cephalometric analysis …
Lip Canting Correction In Patients With Facial Asymmetry After Orthognathic Surgery,
2022
Division of Orthodontics, Department of Stomatology, Taipei Veteran General Hospital, Taipei, Taiwan
Lip Canting Correction In Patients With Facial Asymmetry After Orthognathic Surgery, Pr Wu, Sc Chen, Tf Chen, Ty Wu
Taiwanese Journal of Orthodontics
Patients with facial asymmetry usually accompany with lip canting. Most of these patients came for orthognathic surgery combine orthodontic treatment for chin deviation and asymmetric facial problem. However, the improvement of lip canting after surgery is not as predictable as correction of chin deviation. From our literature review, the correlated factors of lip canting were discussed, and the relationship between improvement of lip canting with two jaw/ one jaw orthognathic surgery were reviewed.
Etiology Of Impacted Maxillary Permanent Central Incisor And Associated Orthodontic Management,
2022
Taichung Veterans General Hospital, Taichung, Taiwan
Etiology Of Impacted Maxillary Permanent Central Incisor And Associated Orthodontic Management, Yi-Fang Lo, Jeng-Fen Liu
Taiwanese Journal of Orthodontics
Purpose. To investigate etiologies associated with impacted maxillary permanent central incisors, retrospectively. In later part of this article, we also reviewed the literature of the orthodontic management of impacted maxillary permanent central incisors. Methods. Standardized periapical radiographs of upper anterior region from 2005 to 2014 in Department of Orthodontics and Pediatric Dentistry, Taichung Veterans General Hospital, Taiwan, were reviewed. From the 1025 reviewed upper anterior periapical radiographs, a total of 64 patients with 68 impacted maxillary permanent central incisors were found and were subsequently evaluated for the etiologies which cause impaction. Results. The most common etiology of impacted maxillary permanent …
Mechanical Properties Of Temporary Anchorage Devices – Review Article,
2022
Division of Orthodontic and Dentofacial Orthopedic, Department of Dentistry, National Taiwan University Hospital; Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University; Taoyuan Armed Forces General Hospital, Department of Dentistry
Mechanical Properties Of Temporary Anchorage Devices – Review Article, Hsin-Ho Chen, Hsuan-Yi Hsiao, Yuan-Yi Tung, Hui-Jen Tsai, Man-Ching Cheng, Eddie Hsiang-Hua Lai
Taiwanese Journal of Orthodontics
Temporary anchorage devices (TADs)are common used in orthodontic treatment for anchorage and force application. They have many advantages, including small size for insertion, potential for immediate loading, no need of patients’ compliance. The success rate of miniscrews was more than 80%. There are several factor affecting stability of TADs, including: insertion torque, soft tissue condition and bone quality of insertion area, magnitude and direction of orthodontic force, oral hygiene condition and insertion method. There are many different shapes, materials and types of miniscrews. Different types of TADs may have different mechanical properties and result in different success rate. We discussed …
Predictive Methods And Formula Of Class Iii Mandibular Growth Potential – A Review Article,
2022
Division of Orthodontic and Dentofacial Orthopedic, National Taiwan University Hospital
Predictive Methods And Formula Of Class Iii Mandibular Growth Potential – A Review Article, Shih-Ying Lin, Wen-Pei Wong, Jenny Zwei-Chieng Chang, Min-Chih Hung
Taiwanese Journal of Orthodontics
Class III malocclusion is common in Asian population and is a major challenge in orthodontic treatment. Some patients received orthopedic treatment to correct the skeletal disharmony in an earlier stage might have to be retreated later because of differential skeletal growth of the maxilla and mandible during the pubertal growth spurt. This article reviews some literature and discusses the craniofacial growth in Class III malocclusion. The methods and formula to predict future Class III growth pattern are also reviewed. This will help clinicians to decide whether to start camouflage treatment during the growth period or wait until completion of growth …
Literature Review: Low Level Laser Therapy In Orthodontics,
2022
Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University
Literature Review: Low Level Laser Therapy In Orthodontics, Wei-Chung Chen, Hui-Chen Tsai, Man-Ching Cheng, Chung-Chen Jane Yao
Taiwanese Journal of Orthodontics
Long treatment time and discomfort in the orthodontic treatment are the most common factors that p’t decides not to accept treatment. Recently, there are many ways to accelerate orthodontic tooth movement and relieve pain during the treatment progress. “Low level laser therapy” which is proven by many clinical studies is a non-invasive way to achieve these goals. This article reviews cellular, animal, and clinical studies about low level laser therapy used in orthodontics.
Clinical Risk Of Pulp Tissue Through Orthodontic Treatment – A Review Article,
2022
Taipei Veterans General Hospital
Clinical Risk Of Pulp Tissue Through Orthodontic Treatment – A Review Article, Ying-Pan Chen, Shu-Fen Yang, Yi-Jen Chen, Tzu-Ying Wu
Taiwanese Journal of Orthodontics
While moving teeth under orthodontic force, there are unavoidable tissue reaction due to the forces applied to the dental pulp and periodontal tissue. Under appropriate orthodontic treatment planning, most of the tissue reactions were limited to temporary pulpitis, blunting of dental root apex etc. However, a few patients will start up serious reactions such as dental pulp obliteration, tooth discoloration, dental pulp necrosis, or even severe apical root resorption and invasive cervical root resorption. These will not only have an impact on tooth structure, but will also affect the prognosis of the tooth. Therefore, by recalling the relevant papers in …
Orthodontic – Orthoganthic Management Of A Skeletal Class Iii - A Case Report,
2022
Department of Orthodontics, Dental Clinics, Kaohsiung Medical University Hospital
Orthodontic – Orthoganthic Management Of A Skeletal Class Iii - A Case Report, Ching-Ling Huang, Han-Jen Hsu, Yu-Chuan Tseng
Taiwanese Journal of Orthodontics
Treatment of Class III malocclusion in non growing patients usually involves either orthodontic camouflage or orthognathic surgery (OgS). Aesthetic outcome has gained in importance in the treatment of orthognathic patients . The surgery options of Class III malocclusions have historically been treated by isolated mandibular setback and maxillary advancement, or bimaxillary osteotomy. This is a case of 17-year-old female patient with skeletal Class III with mandibular prognathism, anterior crossbite and open bite, and severe crowding. Treatment plan included orthodontic treatment with orthognathic surgery, extraction of four first bicuspids and upper bilateral second molar due to poor position and inclination. We …
Surgical Correction Of Mandibular Prognathism With Spaced Dentition – A Case Report,
2022
Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan, ROC; Division of Orthodontic and Dentofacial Orthopedic, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan, ROC
Surgical Correction Of Mandibular Prognathism With Spaced Dentition – A Case Report, Hsuan-Fang Wang, Sze-Hsien Yu, Ya-Wen Wang, Chih-Liang Ho, Kang-Yee Wang, Jenny Zwei-Chieng Chang, Fang-Yu Yang, Eddie Hsiang-Hua Lai
Taiwanese Journal of Orthodontics
This 25-year-old male was characterized with mandibular prognathism and spaced dentition. We applied bilateral sagittal split osteotomy and genioplasty to set back the mandible and the prominent chin. The excess spaces of lower dentition were consolidated and then closed surgically by anterior subapical osteotomy. After treatment, his facial esthetics and occlusion were improved significantly. In the spaced dentition, the space closure by anterior subapical osteotomy after space consolidation may provide a more efficient alternative treatment.
Orthodontic Treatment In Periodontal Compromised Patient With Class Ii Posterior Cross Bite And Deep Overbite,
2022
Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
Orthodontic Treatment In Periodontal Compromised Patient With Class Ii Posterior Cross Bite And Deep Overbite, Chia-Wei Lin, Ellen Wen-Ching Ko
Taiwanese Journal of Orthodontics
Orthodontic management in adult patients with advanced periodontitis is complicated and highly technique sensitive because of missing teeth and reduced alveolar attachment.This case report presents a 32-years old female who was referred from periodontal department, complained about maxillary protrusion and anterior spacing. The diagnoses were Class II division 1 malocclusion, combined with bilateral posterior crossbite and deep overbite. After periodontal inflammation was under well controlled, complicated orthodontic teeth movements were achieved with the aid of TADs. The orthodontic treatment includes the retraction of maxillary anterior teeth and intrusion and palatal movement of upper right segment. In the lower arch, the …
Dental Implant For Orthodontic Anchorage – A Case Report,
2022
Department of Dentistry, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan, ROC; School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
Dental Implant For Orthodontic Anchorage – A Case Report, Szu-Hsien Yu, Hsuan-Fang Wang, Hsun-Cheng Chang, Eddie Hsiang-Hua Lai
Taiwanese Journal of Orthodontics
Three-dimensional planning of a dental-implant site is critical when the dental implants placed in the edentulous area are to be used initially as anchor for tooth movement and later as prosthetic abutments for the fixed restoration. The combined orthodontic and prosthetic implant restorative treatment of an adult patient with missing teeth, diastema of teeth, and malocclusion is described in this article. Plastic cast bases combined with customized position plates allowed the precise transfer of the proposed implant position from the diagnostic arrangement to the original cast to avoid compromising subsequent orthodontic treatment.
Retrospective Analysis Of Treatment And Management For Cleft Lip And Palate Patients Before The Completion Of Primary Dentition,
2022
Department of Pedodontics, Kaohsiung Chang Gung Memorial Hospital,Chang Gung University College of Medicine, Kaohsiung, Taiwan
Retrospective Analysis Of Treatment And Management For Cleft Lip And Palate Patients Before The Completion Of Primary Dentition, Pei-Chi Tang, Jui-Pin Lai, Faye Huang, Te-Ju Wu, Yu-Jen Chang, Li-Tyng Sun, Yng-Tzer Lin, Tzu-Ying Chen, Shiu-Shiung Lin
Taiwanese Journal of Orthodontics
Objective: This study involved a retrospective review of treatment and management for cleft lip and palate patients before the completion of their primary dentition. These newborn cleft babies were assessed immediately in the craniofacial center, and referral for presurgical nasoalveolar molding was arranged if it was indicated. The aims of this study were to retrospectively investigate (1) the distributions of varied types of cleft among our patients, and (2) the repair treatment and relevant management for cleft patients before the completion of their primary dentition. Methods: Hospital records of newborn cleft lip and palate patients enrolled in Kaohsiung Chang Gung …
Investigation Into Changes Of Soft Tissue Landmarks And Constructed Intermediate Points On Facial Profile In Skeletal Class Iii Female Patients Treated By Bimaxillary Surgery,
2022
Department of Orthodontics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
Investigation Into Changes Of Soft Tissue Landmarks And Constructed Intermediate Points On Facial Profile In Skeletal Class Iii Female Patients Treated By Bimaxillary Surgery, Yi-Hao Lee, Yu-Jen Chang, Te-Ju Wu, Jui-Pin Lai, Shun-Jen Yu, Yin-Tai Chen, Yea-Yin Yen, Shiu-Shiung Lin
Taiwanese Journal of Orthodontics
Objective: Improving facial profile by orthognathic surgery is requested more often by female patients. The aim of this study is to investigate the responses of major labeled landmarks and constructed intermediate points on facial profiles of Class III female patients treated by bimaxillary surgery. Material and methods: 16 skeletal Class III female patients requiring Le Fort I osteotomy and bilateral sagittal split osteotomy were selected in this study. Cephalometric tracing was carried out, and selected landmarks were digitized. The surgical outcome and the correlation of soft to hard tissue changes were assessed. Results: The surgical result revealed normalized skeletal relationship …
Knowing The Traps Of Primary Failure Of Eruption (Pfe) — A Case Report With Serial Panoramic Radiographs And Cone Beam Computerized Tomographic (Cbct) Imaging,
2022
Director, Orthodontic and Dental Department, Chang Bing Show Chwan Memorial Hospital, Changhwa
Knowing The Traps Of Primary Failure Of Eruption (Pfe) — A Case Report With Serial Panoramic Radiographs And Cone Beam Computerized Tomographic (Cbct) Imaging, Heng-Ming Mark Chang, Kai-Lung Wang, Daniel Yong-Kie Wong, Chia-Tze Kao, Shun-Chu Hsieh, Chih-Chen Chou, Yung Chen, Kwok-Hing Ho
Taiwanese Journal of Orthodontics
Introduction: Tooth eruption is a complex process and may fail to occur due to several reasons. Primary failure of eruption (PFE) is one of the rare eruption disturbances which do not related to any obstruction in the eruptive pathway or any systematic disorders. This type of eruption failure often affects the posterior teeth and results in subsequent posterior open bite. Any orthodontic attempt is ineffective due to lack of inherent eruptive potential of tooth. Case Report: An 8-year-old skeletal class II young boy with posterior open bites was referred to our department for the poor chewing function. Clinical finding showed …
Surgical-Orthodontic Correction Of Skeletal Class I Malocclusion With Facial Asymmetry: A Case Report,
2022
Department of Orthodontics and Dentofacial Orthopedics, National Taiwan University Hospital
Surgical-Orthodontic Correction Of Skeletal Class I Malocclusion With Facial Asymmetry: A Case Report, Kai-Wen Yu, Chi-Ying Huang, Stella Ya-Hui Yang, Yi-Jane Chen
Taiwanese Journal of Orthodontics
Correction of facial asymmetry is one of the most difficult challenges in orthognathic surgery. Bardinet classified facial asymmetries based on three clinical entities: mandibular lateral deviations, dental asymmetries without skeletal involvement, and skeletal asymmetries. In some cases, combinations of soft tissue deformities and skeletal discrepancies complicate treatment outcome and management. This report presents a case of a 29-year-old male with skeletal Class I malocclusion, high mandibular plane angle, facial asymmetry, and dental Class III malocclusion. Mild left-side down occlusal plane canting and chin deviation to right side was observed. The pre-surgical orthodontic treatment started with full-mouth fixed appliance therapy for …
Class Iii Anterior Openbite With Impacted Tooth,
2022
Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University
Class Iii Anterior Openbite With Impacted Tooth, Wei-Chung Chen, Man-Ching Cheng, Ming-Hsien Lan, Hue-Jen Tsai, Eddie Hsiang-Hua Lai, Chung-Chen Jane Yao
Taiwanese Journal of Orthodontics
Angel’s Class III malocclusion is common in Oriental people. Orthodontic treatment combined with orthognethic surgery will be necessary to improve facial appearance and correct the malocclusion if skeletal discrepancy exists. Impacted dilacerated tooth is also a tough situation we face during orthodontic treatment. We have to evaluate all kinds of conditions to decide whether we align the tooth or not. This case is about a 19-yearold girl whose chief complain was mandible prognathism and crowded teeth. In the beginning examination, we found the tooth 25 was a impacted dilacerated tooth. In the end of the treatment, by orthodontic treatment combined …
Accuracy Of The Computer-Aided 3-D Virtual Planning System Combined With Double-Splint Design In The Orthognathic Surgery — A Pilot Study,
2022
Oral and Maxillofacial Surgery, Charm Aesthetic Surgery Center; Division of Orthodontic and Dento-facial Orthopedic, Wanfang Hospital
Accuracy Of The Computer-Aided 3-D Virtual Planning System Combined With Double-Splint Design In The Orthognathic Surgery — A Pilot Study, Hou-Ren Jiang, Adrian Ming-Chi Hsieh, Sheng-Yang Lee
Taiwanese Journal of Orthodontics
Purpose: The application of 3D virtual planning has been playing an increasingly important role in complicated craniomaxillofacial surgery. It remains a challenge, however, how to precisely transfer the virtual planning to the actual clinical outcome. Cone-beam CT scan, Simplant O&O virtual plan system with 3D printed splints were applied to the patients in our center with dentofacial deformities. This study is to evaluate the accuracy of the virtual plan system and the reliability of the clinical outcomes. Material and Method: Five patients with severe skeletal discrepancies between the upper and lower jaws were included in the study. All of them …
The Prevalence And Patterns Of Tooth Agenesis Among Bilateral Cleft Lip And Palate Patients - A Retrospective Study,
2022
Department of Orthodontics, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
The Prevalence And Patterns Of Tooth Agenesis Among Bilateral Cleft Lip And Palate Patients - A Retrospective Study, Li-Tyng Sun, Te-Ju Wu, Yu-Jen Chang, Jui-Pin Lai, Faye Huang, Wen-Ching Tsai, Tzu-Ying Chen, Kai-Shin Lee, Shiu-Shiung Lin
Taiwanese Journal of Orthodontics
Objective: Tooth agenesis is quite common in cleft lip and palate patients. This study was aimed for retrospectively investigating the prevalence and patterns of tooth agenesis among bilateral cleft lip and cleft palate (CLCP) patients. Patients: The hospital data and x-ray films of bilateral CLCP patients no younger than 7 years old in the Craniofacial Center, Kaohsiung Chang Gung Memorial Hospital from June 1974 to September 2015 were selected. The enrolled list contained 188 patients (male: 124; female: 64). The mean age of our patient was 10.13 years (range: 7.0 ~ 23.6 years). Materials and methods: Patients’ dental records and …
