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2022

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Articles 6241 - 6270 of 23773

Full-Text Articles in Medicine and Health Sciences

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 Aug 2022

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.

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Orthodontic Treatment In Periodontal Compromised Patient With Class Ii Posterior Cross Bite And Deep Overbite, Chia-Wei Lin, Ellen Wen-Ching Ko Aug 2022

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 …

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Dental Implant For Orthodontic Anchorage – A Case Report, Szu-Hsien Yu, Hsuan-Fang Wang, Hsun-Cheng Chang, Eddie Hsiang-Hua Lai Aug 2022

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.

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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 Aug 2022

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 …

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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 Aug 2022

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 …

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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 Aug 2022

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 …

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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 Aug 2022

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 …

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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 Aug 2022

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 …

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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 Aug 2022

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 …

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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 Aug 2022

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 …

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Application Of Digital Models In Orthodontic And Maxillofacial Surgery – A Literature Review, Yu-Jen Hsu, Kang-Yee Wang, Hung-Cheng Chiu, Emily Yi-Min Liu, Yun-Yun Wu Aug 2022

Application Of Digital Models In Orthodontic And Maxillofacial Surgery – A Literature Review, Yu-Jen Hsu, Kang-Yee Wang, Hung-Cheng Chiu, Emily Yi-Min Liu, Yun-Yun Wu

Taiwanese Journal of Orthodontics

The digital dental models are not subject to physical damage, and require negligible storage space. They can be transferred electronically to specialists easily and can be carried out with virtual setups. A precision 3-dimensional head model can be fabricated by integrating a digital dental model into a maxillofacial 3-D CT image. Using this 3-D image, it is possible to perform dental decompensation, reposition of osteotomized bony structures, and simulate the postoperative results on hard and soft tissue in 3-D on our computer screen. Besides, it also spares the laboratory time with CAD/CAM surgical splint manufactured.

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Surgical Orthodontic Correction Of Class Iii Malocclusion With Anterior Openbite - A Case Report, Yi-Jen Liu, Ya-Wen Wang, Wen-Pei Wong, Min-Chih Hung, Chung-Chen Jane Yao, Yi-Jane Chen Aug 2022

Surgical Orthodontic Correction Of Class Iii Malocclusion With Anterior Openbite - A Case Report, Yi-Jen Liu, Ya-Wen Wang, Wen-Pei Wong, Min-Chih Hung, Chung-Chen Jane Yao, Yi-Jane Chen

Taiwanese Journal of Orthodontics

The etiologies of skeletal Class III malocclusion include excessive growth of mandible, deficient growth of maxilla, and the combination of both. Anterior openbite may be due to skeletal, dental, habitual, or functional problems. Mini-implant can be a reliable anchorage for maxillary molar intrusion, which facilitate anterior openbite closure by counterclockwise rotation of the mandible. However, the mandibular counterclockwise rotation may increase antero-posterior jaw discrepancy in Class III malocclusion. Therefore, surgical orthodontics is often required in the treatment of Class III malocclusion with anterior openbite. In this report, we present the treatment of an adult Class III patient with mandibular prognathism, …

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Surgical-Orthodontic Treatment Of A Skeletal Class Iii Malocclusion With Canine Substitution For Peg Lateral Incisors - Case Report, Chih-Ying Hsu, Hsin-Yi Lo, Kwong-Wa Li, Lian-Ru Chen, Jeng-Fen Liu Aug 2022

Surgical-Orthodontic Treatment Of A Skeletal Class Iii Malocclusion With Canine Substitution For Peg Lateral Incisors - Case Report, Chih-Ying Hsu, Hsin-Yi Lo, Kwong-Wa Li, Lian-Ru Chen, Jeng-Fen Liu

Taiwanese Journal of Orthodontics

The overall prevalence of peg-shaped maxillary permanent lateral incisors was 1.8%. The occurrence rates were higher in Mongoloid (3.1%) than in black (1.5%) and white (1.3%) patients. The presence of peg lateral incisors was also a complicated esthetic issue for orthodontist. This case is a skeletal Class III malocclusion 20-years-old male. His problems were mild maxillary skeletal retrognathism combined with mandibular prognathism, anterior crossbite, peg lateral incisors, and upper arch crowding. Treatment involved extraction of two maxillary lateral incisors. Maxillary canine substituted for lateral incisors. Before orthognathic surgery, the extraction spaces were closed for crowding relief of upper arch and …

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Canine Substitution For Upper Central Incisor In A Case Of Upper Anterior Teeth Impaction, Liew Chee Ping, Yu-Ling Huang, Hao-Hueng Chang, Ling-Yu Chang, Chung-Chen Jane Yao Aug 2022

Canine Substitution For Upper Central Incisor In A Case Of Upper Anterior Teeth Impaction, Liew Chee Ping, Yu-Ling Huang, Hao-Hueng Chang, Ling-Yu Chang, Chung-Chen Jane Yao

Taiwanese Journal of Orthodontics

Concurrent impaction and transposition of the maxillary anterior teeth is unusual and may present a great challenge to dental practice. Early diagnosis and elimination of impacted anterior teeth helps provide esthetic and functional outcomes. This case report describes an 18-year-old female whose teeth 13, 11 and 23 (FDI tooth numbering) had dilacerated labial impaction. Teeth 53 and 63 were retained primary teeth. The patient was treated with extraction of teeth 53, 11, 23 and 63, and substitution of teeth 13 for 11, 14 for 13, and 24 for 23. Surgical exposure of tooth 13 was done to tract the impaction …

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The Orthodontic Expansion Treatment Of Posterior Crossbite – A Systemic Review, Ya-Chu Chang, Hsin-Chung Cheng, Ti-Lain Lu, Chen-Fun Chen, I-Gun Chen Aug 2022

The Orthodontic Expansion Treatment Of Posterior Crossbite – A Systemic Review, Ya-Chu Chang, Hsin-Chung Cheng, Ti-Lain Lu, Chen-Fun Chen, I-Gun Chen

Taiwanese Journal of Orthodontics

The purposes of this literature review were to evaluate and compare the correction rate of posterior crossbite of different kinds of maxillary expansion. The study selection criteria included RCTs involving subjects with posterior crossbite with maxillary expansion which searched from MEDLINE. The search strategy resulted in 10 articles that fitted to the inclusion criteria from 72 searched papers. Five out of ten articles have low bias risk, which are Martina R et al. (2012), Petren S et al. (2008), Petren S et al. (2011), Godoy F et al. (2011), McNally MR et al. (2005). The result showed there were no …

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Superimposition Of Digital Dental Model, Wen-Ting Lin, Yu-Chuan Tseng, Pao-Hsin Liu, Hsuan-Chih Lin, Hong-Po Chang Aug 2022

Superimposition Of Digital Dental Model, Wen-Ting Lin, Yu-Chuan Tseng, Pao-Hsin Liu, Hsuan-Chih Lin, Hong-Po Chang

Taiwanese Journal of Orthodontics

The cephalometric radiography, dental model, intra-oral and extra-oral photos are essential traditional baseline data as orthodontic diagnostic tool to develop a comprehensive treatment plan. With the advent of the digital era, 3D digital dental model will gradually replace the traditional bulky plaster casts, and become an inevitable trend in the future. The purpose of this review article was to discuss about: (1) Digital dental models. (2) Pre-treatment and post-treatment stability of palatal rugae. (3) Via serial 3D digital dental model superimposition registered on palatal rugae and palatal vault, it is feasible to analysis the direction and magnitude of 3D individual …

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Orthodontic Treatment Only On The Lower Anterior Teeth For Incisor Intrusion, Cheng-Ting Ho Aug 2022

Orthodontic Treatment Only On The Lower Anterior Teeth For Incisor Intrusion, Cheng-Ting Ho

Taiwanese Journal of Orthodontics

Recently bone screws have been used widely as Temporary Anchorage Devices (TAD'S) in various orthodontic treatments including intrusion of anterior teeth. Here we would like to present an uncommon case report of anterior segmental orthodontic treatment without involving the posterior teeth. A 60 year old male patient reported to our hospital with the complaint of missing maxillary anterior teeth. He wants to restore his function and esthetic with dental implants. However the over eruption of lower anterior teeth interferes with the space needed for upper implants; hence we decide to intrude mandibular incisors. The patient had all metal crown & …

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Surgical-Orthodontic Treatment Of Class Iii Malocclusion With Facial Asymmetry — A Case Report, You-Ning Gao, Ming-Hsien Lan, Wen-Chung Chang, Yuan-Yi Tung, Hsiang-Hua Lai, Yi-Jane Chen Aug 2022

Surgical-Orthodontic Treatment Of Class Iii Malocclusion With Facial Asymmetry — A Case Report, You-Ning Gao, Ming-Hsien Lan, Wen-Chung Chang, Yuan-Yi Tung, Hsiang-Hua Lai, Yi-Jane Chen

Taiwanese Journal of Orthodontics

Facial asymmetry affects more frequently on the lower face than the upper face. Significant facial asymmetry compromises both occlusal function and facial esthetics. The etiology of facial asymmetry may be skeletal, dental, and soft tissue components of dentofacial structures. Correct diagnosis and appropriate treatment planning are very important in the management of the orthodontic patients with the chief complaint of facial asymmetry. Facial asymmetry in lower face can be clearly detected through the examination on chin deviation and asymmetry of bilateral gonial angle regions. The amount and the direction of deviation usually reveals the dental compensation in the transverse aspect …

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Treatment Of Severe Class Ii Division 1 Malocclusion With Maxillary First Molar Missing — Case Report, Ju-Chi Ho, Chien-Cheng Chen, Yi-Horng Chen Aug 2022

Treatment Of Severe Class Ii Division 1 Malocclusion With Maxillary First Molar Missing — Case Report, Ju-Chi Ho, Chien-Cheng Chen, Yi-Horng Chen

Taiwanese Journal of Orthodontics

This case report describes a 22-year-old female with skeletal Class II and dental Class II division 1 malocclusion. The chief complaint is her protrusive upper front teeth. Clinical examination revealed a convex facial profile, retrognathic mandible, proclined upper and lower incisors with 11mm overjet, missing of upper left first molar, mild crowding in the lower anterior region and V-shaped arch forms. After orthodontic analysis and communication with the patient, the treatment plan was decided to orthodontic camouflage treatment by extracting the upper first premolars, moving upper second and third molars mesially at left side and maintaining upper second premolar to …

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Review Of Oral Appliance On Osa (Obstructive Sleep Apnea), Yuag-Chuan Wang, Hsin-Chung Cheng, Hsin-Chien Lee, Ti-Lain Lu, Chen-Fun Chen, I-Gun Chen Aug 2022

Review Of Oral Appliance On Osa (Obstructive Sleep Apnea), Yuag-Chuan Wang, Hsin-Chung Cheng, Hsin-Chien Lee, Ti-Lain Lu, Chen-Fun Chen, I-Gun Chen

Taiwanese Journal of Orthodontics

Obstructive sleep apnea (OSA) is the most common category of sleep-disordered breathing. The common signs of OSA include loud and irregular snoring and disturbed sleep due to the multiple awakenings. OSA is frequently associated with cardiovascular and metabolic disorders. Many studies have confirmed that there are clear benefits for patients who treated OSA. Continuous positive airway pressure (CPAP) is the gold standard treatment for OSA, but there are many patients with OSA who are intolerant of CPAP therapy. Oral appliance treatment is alternative therapy for mild to moderate OSA. This article makes some literature reviews and discusses effect, mechanisms, clinical …

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Literature Review: Mandibular Symphysis, Wei-Ting Tseng, Shun-Hsin Chen, Pei-Chuan Hung, Wen-Chung Chang, Ming-Hsien Lan, Chung-Chen Jane Yao, Wen-Pei Wong Aug 2022

Literature Review: Mandibular Symphysis, Wei-Ting Tseng, Shun-Hsin Chen, Pei-Chuan Hung, Wen-Chung Chang, Ming-Hsien Lan, Chung-Chen Jane Yao, Wen-Pei Wong

Taiwanese Journal of Orthodontics

Mandibular symphysis is the critical reference for facial profile and determines the lower incisor position indirectly. It also serves as the primary consideration for diagnosis and treatment plans. This essay reviews articles relevant to the embryology and growth, morphology of mandibular symphysis, and its restrain on orthodontic tooth movement of lower incisors. Discussion mainly focused on the effectiveness of genioplasty, mandibular symphysis distraction osteogenesis, periodontally accelerated osteogenic orthodontics on mandibular symphysis, which may breach its limitation on range of orthodontic tooth movement.

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Idiopathic Condylar Resorption: A Combined Orthodontic And Orthognathic Surgery Treatment Perspective — A Review Article, Kuang-Hsuan Chang, I-Ling Hong, Chi-Ying Huang, Yunn-Jy Chen, Sang-Heng Kok, Chung-Chen Jane Yao Aug 2022

Idiopathic Condylar Resorption: A Combined Orthodontic And Orthognathic Surgery Treatment Perspective — A Review Article, Kuang-Hsuan Chang, I-Ling Hong, Chi-Ying Huang, Yunn-Jy Chen, Sang-Heng Kok, Chung-Chen Jane Yao

Taiwanese Journal of Orthodontics

Idiopathic condylar resorption (ICR) is a well-documented but poorly understood progressive disease that affects the TMJ. ICR can result in malocclusion, facial disfigurement, TMJ dysfunction, and pain. Some cases occur spontaneously, whereas others appear during orthodontic therapy or as sequelae to orthognathic surgical procedures. It is essential for orthodontists to recognize the onset of ICR in patients as early as possible .This article discusses practical aspects of recognizing and managing ICR in orthodontic patients by a combination of orthodontic and orthognathic surgery treatment.

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Orthodontic-Surgical Management Of A Horizontally Impacted Maxillary Incisor − A Case Report, Chih-Hsiang Chan, Szu-Ting Chou, Yu-Chuan Tseng, Chin-Yun Pan, Hong-Po Chang, Chung-Wei Wu Aug 2022

Orthodontic-Surgical Management Of A Horizontally Impacted Maxillary Incisor − A Case Report, Chih-Hsiang Chan, Szu-Ting Chou, Yu-Chuan Tseng, Chin-Yun Pan, Hong-Po Chang, Chung-Wei Wu

Taiwanese Journal of Orthodontics

A 11-year-old girl came with her grandmother due to her impacted maxillary incisor. She was suggested to receive orthodontic treatment while having routine oral examination at school. After orthodontic examination & evaluation, skeletal Class III jaw relation with orthodivergent facial pattern, Class III malocclusion and impacted maxillary central incisor was diagnosed. After full mouth fixed edgewise orthodontic guiding treatment and surgical closed eruption of the impacted incisor, the maxillary central incisor was moved into a proper position. Angle Class I molar relation, acceptable overbite and overjet and well-aligned dentition was also achieved. The total treatment period was 35 months.

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The Study Of Patients’ Motivation In Orthodontic Treatment, Pei-Hsuan Chen, Hsin-Chung Cheng, Chun-Yi Kao, Ti-Lain Lu, Chen-Fun Chen, I-Gun Chen Aug 2022

The Study Of Patients’ Motivation In Orthodontic Treatment, Pei-Hsuan Chen, Hsin-Chung Cheng, Chun-Yi Kao, Ti-Lain Lu, Chen-Fun Chen, I-Gun Chen

Taiwanese Journal of Orthodontics

Orthodontic treatment has become popular now in Taiwan, and motivation of orthodontic treatment is a key factor of treatment outcome; therefore, understanding the motivation of orthodontic patients is very important. There are many studies focusing on motivation of orthodontic patients; however, Taiwan is still lack of sufficient sample in related issue. Our study is to analyze motivations about Taiwanese to improve orthodontic treatment quality and outcome. Questionnaire survey was conducted in the department of dentistry in three different hospitals and dental clinics held by orthodontic specialist in Taiwan. The sample is randomized and the invalid questionnaires were eliminated. The patients’ …

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Orthodontic Treatment For Constricted Maxilla And Prognathic Mandible With Severe Crowding Via 2-Jaw Orthognathic Surgery — A Case Report, Ly Chang, Hc Chiu, Cl Ho, Zc Chang, Cc Yao Aug 2022

Orthodontic Treatment For Constricted Maxilla And Prognathic Mandible With Severe Crowding Via 2-Jaw Orthognathic Surgery — A Case Report, Ly Chang, Hc Chiu, Cl Ho, Zc Chang, Cc Yao

Taiwanese Journal of Orthodontics

This is a case of a 26 year-old female who complained of mandibular prognathism and malocclusion.Extraoral view revealed a concave profile with midface deficiency, mandibular prognathism, and chin deviation to right side by 4 mm. Class III malocclusion along with bilateral posterior crossbite and severe crowding were noted. Panoramic X-ray showed #83 retained, and #43 deeply impacted approximating to the mandibular lower border with a mass of radiopacity over it. Orthodontic treatment combined with a 2-jaw orthognathic surgery in which removal of #43 deep impaction was suggested. Before full mouth bonding, we referred the patient to remove #83 and the …

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Literature Review: The Effect Of Timing Of Loading And Osseointegration On Stability And Success Rate Of Orthodontic Mini-Screws, Hsiu-Ching Ko, Pi-Huei Liu, Chih-Liang Ho, Wen-Pei Wong, Hsiang-Hua Lai, Min-Chih Hung Aug 2022

Literature Review: The Effect Of Timing Of Loading And Osseointegration On Stability And Success Rate Of Orthodontic Mini-Screws, Hsiu-Ching Ko, Pi-Huei Liu, Chih-Liang Ho, Wen-Pei Wong, Hsiang-Hua Lai, Min-Chih Hung

Taiwanese Journal of Orthodontics

With the advances of dental implants, temporary skeletal anchorage devices have now become established orthodontic anchorage aids and launched a new era for clinical orthodontic therapy. Nowadays, orthodontic miniscrews are commonly used in daily practice and demand great stability and high predictability for therapeutic needs. In recent years, numerous publications have investigated multiple factors affecting success rates of orthodontic mini-screws. The aims of this review were to investigate the relationships between timing of loading and implant stability, and the impact of osseointegration on orthodontic mini-screws.

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The Sixth Series Of “Orthodontic Treatment’S Influence Over Upper Airway”: Different Designs And Long-Term Consequences Of Oral Appliance, Hung-Hsiang Liao, Chung-Chen Jane Yao, Ya-Ting Wang, Bi-Hui Liu, Xuan-Yi Xiao, Min-Chin Hung Aug 2022

The Sixth Series Of “Orthodontic Treatment’S Influence Over Upper Airway”: Different Designs And Long-Term Consequences Of Oral Appliance, Hung-Hsiang Liao, Chung-Chen Jane Yao, Ya-Ting Wang, Bi-Hui Liu, Xuan-Yi Xiao, Min-Chin Hung

Taiwanese Journal of Orthodontics

The effect of oral appliances in treating mild to moderate obstructive sleep apnea syndrome (OSAS) patientis found to be similar to continuous positive airway pressure in a study in 1955. Oral appliances make tongue or mandible forward position to increase airway space. Mandibular advancement devices and tongue retaining devices are oral appliances used in clinic today. Long term effects of oral appliances are discussed in three parts in this article: airway, dentition and temporomadibular joint. Total airway volume increases after using oral appliances. Overbite and overjet are found decreasing. Oral appliances cannot worsen the temporomadibular joint problems.

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Literature Review: Changes Of Pharyngeal Airway Space Following Orthodontic Treatment Of Class I Bimaxillary Protrusion, Ya-Wen Wang, Der-Lan Chien, Fong-Lan Chan, Hung-Cheng Chiu, Pei-Chuan Hung, I-Ling Hong Aug 2022

Literature Review: Changes Of Pharyngeal Airway Space Following Orthodontic Treatment Of Class I Bimaxillary Protrusion, Ya-Wen Wang, Der-Lan Chien, Fong-Lan Chan, Hung-Cheng Chiu, Pei-Chuan Hung, I-Ling Hong

Taiwanese Journal of Orthodontics

Bimaxillary protrusion is characterized by protrusive and proclined upper and lower incisors. Since patients with bimaxillary protrusion generally have perfectly good occlusion, orthodontic treatment is often solely sought to correct the protrusive profile and less concern about the airway space change. Typical orthodontic treatment includes extraction of the bimaxillary premolars and anterior tooth retraction, with maximum anchorage. Recently, the relationship between maximum anchorage and tooth displacement is well recognized, retrospective upper airway analysis after retraction of the large incisors remains to be established. This article review previous studies about the pharyngeal airway changes after orthodontic treatment of class I bimaxillary …

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Literature Review: The Effect Of Maxillary Expansion On Upper Airway, Hsiu-Ching Ko, Mu-Hsiung Chen, Joung-Lin Liao, Man-Ching Cheng, Yu-Ling Huang Aug 2022

Literature Review: The Effect Of Maxillary Expansion On Upper Airway, Hsiu-Ching Ko, Mu-Hsiung Chen, Joung-Lin Liao, Man-Ching Cheng, Yu-Ling Huang

Taiwanese Journal of Orthodontics

Rapid maxillary expansion (RME) is a common method used by orthodontists to increase the transverse dimension of maxillary arch and arch perimeter, by a tooth-borne device to stretch the median palatal suture through the mechanical force. The orthopedic effects produced by the RME device include not only opening the median palatal suture, but also rotating the maxillary alveolar shelves, which has an influence on the adjacent sutures of facial skeleton and the morphology of nasal cavities. This article reviewed the impact of RME on the anatomy of upper airway, respiratory flow resistance, and clinical relation with the nasal airway obstruction …

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Effects Of Removable Orthopedic Appliance On Upper Airway Dimensions, Yu-Jen Hsu, Stella Ya-Hui Yang, Emily Yi-Min Liu, Yi-Jane Chen, Wen-Chung Chang Aug 2022

Effects Of Removable Orthopedic Appliance On Upper Airway Dimensions, Yu-Jen Hsu, Stella Ya-Hui Yang, Emily Yi-Min Liu, Yi-Jane Chen, Wen-Chung Chang

Taiwanese Journal of Orthodontics

Growth modification by using removable orthopedic appliances has been commonly used in growing patients to correct maxilla-mandibular jaw discrepancy. Previous studies reported the different effects of various orthopedic appliances on the airway dimension. Low-pull headgear therapy may induce a short-term decrease of the upper airway dimension in Class II patients. Face mask therapy seems to be associated with the increase of upper airway dimension in growing Class III patients. However, mandible protruding appliances can increase the upper airway dimension, especially in the Class II patients with mandible retrusion.

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