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- Orthognathic surgery (30)
- Facial asymmetry (10)
- Orthodontic treatment (9)
- Mandibular prognathism (8)
- Miniscrew (8)
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- Class III malocclusion (7)
- Skeletal Class II malocclusion (7)
- Canine substitution (5)
- Functional appliance (5)
- Orthodontics (5)
- Anterior open bite (4)
- Anterior openbite (4)
- Bimaxillary protrusion (4)
- Cephalometric analysis (4)
- Distraction osteogenesis (4)
- Forced eruption (4)
- Temporary anchorage devices (4)
- CBCT (3)
- Cleft lip and palate (3)
- Genioplasty (3)
- Impaction (3)
- Implant orthodontics (3)
- Molar intrusion (3)
- Molar uprighting (3)
- Orthodontic (3)
- Orthodontic therapy (3)
- Posterior crossbite (3)
- Self-ligating bracket (3)
- Skeletal Class III malocclusion (3)
- Substitution (3)
Articles 181 - 210 of 385
Full-Text Articles in Dentistry
Intrusion Of Supra-Erupted Maxillary Molars Using Miniscrews– Literature Review, Hsin-Ho Chen, Yu-Kun Chih
Intrusion Of Supra-Erupted Maxillary Molars Using Miniscrews– Literature Review, Hsin-Ho Chen, Yu-Kun Chih
Taiwanese Journal of Orthodontics
Overextrusion of maxillary molars usually results from early loss of antagonistic teeth due to caries or periodontitis. Conventional techniques for molar intrusion was used multiple teeth and extraoral devices, that depended highly on patient’s cooperation and usually result in extrusion of other teeth rather than posterior intrusion. This article reviews treatment consideration, force mechanics and side effects about miniscrews for intrusion of upper molars. We also present a clinical case to confirm miniscrew treat supra-erupted upper molars successfully.
Orthodontic Treatment Of Double Impacted Canines, Ting-Shiuan Sung, Han-Jen Hsu
Orthodontic Treatment Of Double Impacted Canines, Ting-Shiuan Sung, Han-Jen Hsu
Taiwanese Journal of Orthodontics
This is not a perfect case. I made some mistakes during the treatment. I wish every orthodontics can learn something from the case and prevent the mistakes that I have made. This was a 11 years old girl and her chief complained is anterior teeth crowding. The findings of examination were convex facial profile, protrusive upper and lower lip, Angle Class I malocclusion, upper right and lower left canine impacted. The treatment plane were force eruption of the two impacted canine, and extraction of upper and lower bilateral first premolars for anterior teeth retraction. When the upper right canine was …
Total Arch Distalization To Reduce Bimaxillary Protrusion With Temporary Anchorage Devices, Shu-Chun Tsai, Hau-Hueng Chang, Chen-Ying Wang, Chung-Chen Jane Yao
Total Arch Distalization To Reduce Bimaxillary Protrusion With Temporary Anchorage Devices, Shu-Chun Tsai, Hau-Hueng Chang, Chen-Ying Wang, Chung-Chen Jane Yao
Taiwanese Journal of Orthodontics
Bimaxillary protrusion is defined as convex profile with protrusive upper and lower lips. Therefore the orthodontic treatment goal is to correct the proclination of upper and lower incisors by retracting the incisors into the space usually resulted from four bicuspid extractions. However, with extraordinary development of temporary anchorage device as skeletal anchorage, non-extraction approach could be a treatment option for patients with mild to moderate bimaxillary protrusion. In this case report, we present the treatment of a 28-year-old female patient with skeletal Class II, high mandibular plane angle, and dental Class I bimaxillary protrusion, which combined with gummy smile and …
Treatment Of Class Iii Malocclusion With Anterior Cross-Bite Using Miniscrew Anchorage – Case Report, Jung-Hsuan Cheng, Yu-Chuan Tseng, Chia-Ni Lin, Hong-Po Chang
Treatment Of Class Iii Malocclusion With Anterior Cross-Bite Using Miniscrew Anchorage – Case Report, Jung-Hsuan Cheng, Yu-Chuan Tseng, Chia-Ni Lin, Hong-Po Chang
Taiwanese Journal of Orthodontics
Adult patients with skeletal Class III malocclusion may have several available treatment options: (1) a combination of orthodontic treatment and orthognathic surgery. (2) camouflaged orthodontic treatment with various extraction selections. In this case report, we use miniscrew anchorage to retract mandibular incisors and control labial tipping of maxillary incisors. Not only improving dental occlusion without extraction of teeth (except for wisdom teeth) but also achieving a balanced profile in only 14 months of treatment time.
Periodontal Outcomes Of Impacted Maxillary Central Incisors In 80 Patients Treated With A Combined Surgical-Orthodontic Approach, Kwok-Hing Ho, Yu-Fang Liao
Periodontal Outcomes Of Impacted Maxillary Central Incisors In 80 Patients Treated With A Combined Surgical-Orthodontic Approach, Kwok-Hing Ho, Yu-Fang Liao
Taiwanese Journal of Orthodontics
Background: Impaction of maxillary central incisors can result in aesthetic problems. The aim of this retrospective study was to examine the periodontal outcomes of impacted maxillary central incisors after surgical exposure and orthodontic extrusion compared to naturally erupted, contralateral incisors (control). Methods: Patients (N=80, 80 central incisors), who had been treated by a surgical-orthodontic approach, underwent a periodontal examination after 6 to 146 months. Periodontal parameters (crown length, keratinized gingival width, gingival scar, and bone loss) of the orthodontically extruded incisors were scored and compared with those of the naturally erupted contralateral incisors (control) in a masked set-up. Results: The …
The Investigation Of Corrosion Behavior Of Self-Ligating And Conventional Metal Brackets In Soft Drinks, Yin-Chi Hsu, Hoi-Shing Luk, Wen-Ken Tai, Chih-Chen Chou, Heng-Ming Chang, Chia-Tze Kao
The Investigation Of Corrosion Behavior Of Self-Ligating And Conventional Metal Brackets In Soft Drinks, Yin-Chi Hsu, Hoi-Shing Luk, Wen-Ken Tai, Chih-Chen Chou, Heng-Ming Chang, Chia-Tze Kao
Taiwanese Journal of Orthodontics
Introduction: Tea, lemon tea and cola are common beverage in our life. The purpose of the present study is to investigate the corrosion behavior of self-ligating and conventional metal brackets in soft drinks. Materials and Methods: Totally, 198 brackets were used. There are Damon Q (Ormco, USA), P OPA-K (TOMY, Japan) and Tenbrook one (OrthoClass, USA).They were all made of 17-4 PH stainless steel. They were divided into four groups of immersing solutions: artificial saliva, tea, lemon tea, and cola. Brackets were immersed in these solutions at an ovan under 37°C for one day and thirty days. Immersing solutions were …
Evaluation Of Gender Difference At Orthodontic Miniscrew Placement Sites In The Mandible: A Cbct Study, Ming-Wei Wei, Yu-Chuan Tseng, Hong-Po Chang, Yi-Hsin Yang
Evaluation Of Gender Difference At Orthodontic Miniscrew Placement Sites In The Mandible: A Cbct Study, Ming-Wei Wei, Yu-Chuan Tseng, Hong-Po Chang, Yi-Hsin Yang
Taiwanese Journal of Orthodontics
Purpose: the purpose of this study is to evaluate mandible bone density and gender difference through three-dimensional images. The Images was captured by cone-beam computer tomography (CBCT) and transfer into DICOM format for further examination. Material and method: CBCT images were obtained from 36 males and 34 females aged from 18 to 40 years. Mandible bone density was measured in 4 sites bilaterally. Inter-gender and intra-class comparison were made to distinguish the difference of acquired data. Result: Bone density measurement of females showed greater bone density at almost all sites but only showing significant difference in left retromolar area (p=0.0067). …
Orthodontic Treatment For A Periodontally Compromised Class Ii Malocclusion - A Case Report, Jiun-Hao Lin, Kuan-Yi Wu, I-Ling Hong, Yi-Jane Chen
Orthodontic Treatment For A Periodontally Compromised Class Ii Malocclusion - A Case Report, Jiun-Hao Lin, Kuan-Yi Wu, I-Ling Hong, Yi-Jane Chen
Taiwanese Journal of Orthodontics
Adult orthodontic treatment has become increasingly popular. The primary motivating factor for seeking orthodontic treatment in adults is facial and dental esthetics, especially the alignment of their anterior teeth. Pathologic migration of anterior teeth is a common cause of esthetic concern among adult patients. The anchorage control is very important in the orthodontic treatment for the dentition with compromised periodontal support. Mini-implant anchorage provides a good solution to this situation. However, the force level should be light and consistent. Herein we report a 33-year-old female patient who presented a Class II division 1 malocclusion with maxillary anterior crowding, protrusion, and …
Comparison Of Two Different Treatment Methods On White Spot Lesions After Orthodontic Treatment, Li-Ling Kao, Hsiu-Ming Hsu, Chuan-Yang Chang, Jia-Kuang Liu
Comparison Of Two Different Treatment Methods On White Spot Lesions After Orthodontic Treatment, Li-Ling Kao, Hsiu-Ming Hsu, Chuan-Yang Chang, Jia-Kuang Liu
Taiwanese Journal of Orthodontics
The aims of the study were to compare the degree of demineralization and the size alteration of white spot lesions after orthodontic treatment using fluoride dentifrice or tooth mousse therapy. Twelve upper incisors with demineralized white spot lesions of eight participants were identified after fixed appliances were removed. These participants were randomly and double blindly assigned to use one of the two dentifrices (TM and FD). Degree of demineralization was examined using DIAGNodent pen and digital photographs were taken at bracket removal, 4 weeks and 8 weeks later. Image J, one image processing software, was used to measure the size …
A Research Report – Congenitally Missing Teeth In Unilateral Cleft Lip And Alveolus Children, Hsien-Lin Chuang, Wen-Ching Tsai, Wei-Yung Hsu
A Research Report – Congenitally Missing Teeth In Unilateral Cleft Lip And Alveolus Children, Hsien-Lin Chuang, Wen-Ching Tsai, Wei-Yung Hsu
Taiwanese Journal of Orthodontics
Objective: To retrospectively study the dentition of southern Taiwan children with unilateral complete cleft lip and alveolus for the prevalence of hypodontia. Patients: 680 Taiwan children with unilateral complete cleft lip and alveolus aged between 10 and 12 years from July, 1983 to June, 2008 in Department of Orthodontics, Kaohsiung Chang Gung Memorial Hospital. Material and methods: Dental records were studied as were the panoramic radiograph, periapical films of anterior teeth, upper occlusal films and dental model from which the dentition was examined. Results: The prevalence of congenitally missing maxillary lateral incisor was 79.12% of cleft side and 3.82% on …
The Relation Between Maxillary Molar Intrusion By Using Mini-Implants And The Change Of Mandibular Plane In Hyperdivergent Skeletal Class Ii Patients, Ya-Ying Teng, Eric Jein-Wein Liou
The Relation Between Maxillary Molar Intrusion By Using Mini-Implants And The Change Of Mandibular Plane In Hyperdivergent Skeletal Class Ii Patients, Ya-Ying Teng, Eric Jein-Wein Liou
Taiwanese Journal of Orthodontics
Purpose: To investigate the relation between the change of mandibular plane and maxillary molar intrusion with mini-implants. Materials and Methods: Twenty-eight consecutive adult patients with skeletal Class II, retrognathic mandible and high mandibular plane were included (mean age: years). They were treated with 4 premolar extractions and mini-implants for maxillary molar intrusion. The pre-treatment (T0) and post-treatment (T1) lateral cephalograms were traced and superimposed to measure the changes of parameters. Pearson correlation coefficient was calculated to determine the correlation between the molar intrusion and the change of mandibular plane. Results: The upper molars were intruded mm. The lower molars were …
Planning The Surgery-First Approach In Surgical-Orthodontic Treatment With A Computer Aided Surgical Simulation (Cass) Planning Protocol, Sam Sheng-Pin Hsu, Dhruv Singhal, James J. Xia, Jaime Gateno, Cheng-Hui Lin, Chiung-Shing Huang, Lun-Jou Lo, Ellen Wen-Ching Ko, Yu-Ray Chen
Planning The Surgery-First Approach In Surgical-Orthodontic Treatment With A Computer Aided Surgical Simulation (Cass) Planning Protocol, Sam Sheng-Pin Hsu, Dhruv Singhal, James J. Xia, Jaime Gateno, Cheng-Hui Lin, Chiung-Shing Huang, Lun-Jou Lo, Ellen Wen-Ching Ko, Yu-Ray Chen
Taiwanese Journal of Orthodontics
The surgery-first approach in surgical orthodontic treatment is re-emerging as the preferred technique when compared to the traditional orthodontic first-approach. Despite its growing popularity, no planning protocol that offers comprehensive and accurate predictions has been described for the surgery-first approach. In this article, the authors utilize computer aided surgical simulation (CASS) to provide two planning methods for the surgery-first approach. The benefits of using CASS for planning include enhanced 3-dimensional visualization of treatment progression, the ability for surgeons and orthodontists to discuss and visualize in detail any potential treatment algorithm, and providing a more precise prediction for the surgeon, orthodontist, …
Face Asymmetry And Mandibular Bite Collapse Corrected With Orthognathic Surgery And Miniscrews In A Patient With Wilson’S Disease, Yi-Chin Wang, Ellen Wen-Ching Ko, Philip Kuo-Ting Chen
Face Asymmetry And Mandibular Bite Collapse Corrected With Orthognathic Surgery And Miniscrews In A Patient With Wilson’S Disease, Yi-Chin Wang, Ellen Wen-Ching Ko, Philip Kuo-Ting Chen
Taiwanese Journal of Orthodontics
An adult female patient aged 34 years and 8 months with Wilson’s disease, a rare autosomal recessive genetic disorder, demonstrated poor chewing ability and facial asymmetry which were worsened gradually since the disease attacked her 10 years ago. She was treated by surgical orthodontics with minimal presurgical orthodontic decompensation. We designed an atypical maxillary anterior subapical osteotomy to close the maxillary incisor pontic space, retract anterior segment of the maxilla, and maintain the dental midline simultaneously. The mandible deviation was corrected by bilateral sagittal split osteotomies. Severe bilateral posterior bite collapses were uprighted effectively and efficiently by miniscrews combined with …
Orthodontic Treatment Of Class Iii Malocclusion And Mandibular Deviation By Modified Multiloop Edgewise Archwire (Meaw) Technique – Case Report, Nien-Shan Yang, Yin-Fui Chu, Hong-Po Chang
Orthodontic Treatment Of Class Iii Malocclusion And Mandibular Deviation By Modified Multiloop Edgewise Archwire (Meaw) Technique – Case Report, Nien-Shan Yang, Yin-Fui Chu, Hong-Po Chang
Taiwanese Journal of Orthodontics
Class III malocclusion with mandibular protrusion and lateral displacement are commonly observed at orthodontic clinic. If patients don’t accept orthognathic surgery and belong to mild to moderate malocclusion, non-surgery treatment will be available. This was a 25-year-old female; her chief complaint was anterior crossbite with anterior spacing and mandibular protrusion. The diagnosis was dental and skeletal Class III malocclusion with mandibular prognathism. The patient was successfully treated with fixed orthodontic appliance by modified Multiloop Edgewise Archwire (MEAW) Technique and asymmetric elastics. The total treatment time was one year and 8 months. Good alignment and occlusion with coincident dental midline, and …
Dental And Skeletal Correction Of Möbius Syndrome: A Case Report, Yea-Ling Yang, Ellen Wen-Ching Ko, Chiung-Shing Huang, Yu-Ray Chen
Dental And Skeletal Correction Of Möbius Syndrome: A Case Report, Yea-Ling Yang, Ellen Wen-Ching Ko, Chiung-Shing Huang, Yu-Ray Chen
Taiwanese Journal of Orthodontics
A 26-year-old female presented with Möbius syndrome. She came with chief complaint of excessive exposure her front teeth. She had Class III malocclusion with anterior cross bite. However she had a hyperdivergent face and backward rotation of the mandible without effective chin. After evaluation, she underwent orthognathic surgery and orthodontic treatment. The surgical techniques for correction her skeletal problems included maxillary Le Fort I osteotomy impaction and setback; mandibular bilateral sagittal split osteotomies setback; advancement and reduction genioplasty. The two-year follow up after treatment indicated that the surgical outcome and occlusion were stable.
The Application Of Removable Ball-Type Palatal Expander In Adult Patients With Maxillary Transverse Deficiency – Case Report, Yi-Ming Kung, Chun-Liang Kuo, I-Hua Liu, Hui-Lin Chen
The Application Of Removable Ball-Type Palatal Expander In Adult Patients With Maxillary Transverse Deficiency – Case Report, Yi-Ming Kung, Chun-Liang Kuo, I-Hua Liu, Hui-Lin Chen
Taiwanese Journal of Orthodontics
In clinical, the maxillary transverse development insufficiency of the patients often have the posterior crossbite and arch narrow circumstances, there are some impact in the pronunciation, chewing functions, and even for appearance. In childhood, these problems can be improved by rapid palatal expander correction device to stimulate the maxilla suture zone growth and development. However, the adult’s palate suture zones have been closed; if the maxilla needs to do a significant expansion, it often has to assist by the way of surgery to resolve. This report presents two examples of these adult cases utilize wearing the removable ball-type palatal expander …
Correction Of Class Iii Malocclusion And Facial Asymmetry With Clockwise Rotation Of Maxillo-Mandibular Complex, Ya-Ying Teng, Cheng-Ting Ho
Correction Of Class Iii Malocclusion And Facial Asymmetry With Clockwise Rotation Of Maxillo-Mandibular Complex, Ya-Ying Teng, Cheng-Ting Ho
Taiwanese Journal of Orthodontics
The double-jaw surgery is frequently desirable to correct skeletal discrepancies and obtain better esthetic results for patients with severe skeletal Class III deformities. Instead of standard surgical principles, an alternative rotation of the maxillo-mandibular complex (MMC) is frequently required for patients with extreme degrees of skeletal discrepancies to achieve optimal facial esthetics. As shown in the case report, the clockwise rotation of MMC was planned for the adult male patient with skeletal class III that resulted in increasing the fullness of paransal area, reducing the lower anterior facial height and decreasing the chin projection by 14 mm. The proper facial …
The Investigation On Medical Dispute Of Clinical Orthodontic Practice In Taiwan – A Preliminary Study, Sam Sheng-Pin Hsu, Yu-Kun Chih
The Investigation On Medical Dispute Of Clinical Orthodontic Practice In Taiwan – A Preliminary Study, Sam Sheng-Pin Hsu, Yu-Kun Chih
Taiwanese Journal of Orthodontics
Purpose: The prevalence of medical disputes or controversies in orthodontic treatment is getting higher and higher in Taiwan. Nevertheless, the related researches and literatures are few. The purpose of this study was to investigate and analyze the situation of medical disputes or controversies in clinical orthodontic practice in Taiwan. Materials and methods: The investigation was done by the questionnaire survey among the dentists who perform orthodontic treatment as either part or all of his/her clinical practice. Totally seventy-two valid questionnaires were collected. The outcome of each question was shown as percentage. Results: Twenty-eight percent of all respondents had ever experienced …
Postretention Changes In Intercanine Widths Following Orthodontic Treatment, Yueh-Tse Lee
Postretention Changes In Intercanine Widths Following Orthodontic Treatment, Yueh-Tse Lee
Taiwanese Journal of Orthodontics
Changes in dental arch width during treatment and the postretention period are ongoing issues in orthodontics. Studies have documented that changes in arch dimensions occur during orthodontic treatment regardless of whether extractions were adopted or not. This has led to continued debate regarding the method that delivers better long-term results. Maintenance of pretreatment intercanine widths has been suggested to be the key to the posttreatment stability of the dental arch. Additionally, smile esthetics are also influenced by the changes in intercanine widths, leading to a debate that involves smile esthetics as well as long-term stability. This article reviews the postretention …
Combined Fronto-Facial Monobloc Distraction Osteogenesis And Orthognathic Surgery In A Patient With Crouzon Syndrome – A Case Report, Yi-Hsuan Chen, Ellen Wen-Ching Ko, Philip Kuo-Ting Chen, Chiung-Shing Huang
Combined Fronto-Facial Monobloc Distraction Osteogenesis And Orthognathic Surgery In A Patient With Crouzon Syndrome – A Case Report, Yi-Hsuan Chen, Ellen Wen-Ching Ko, Philip Kuo-Ting Chen, Chiung-Shing Huang
Taiwanese Journal of Orthodontics
Treatment for patients with craniofacial anomalies always presents a great challenge to orthodontists and craniofacial surgeon. Treatment usually requires craniofacial reconstructive surgery, comprehensive orthodontic treatment and orthognathic surgery. In this article, we report a patient with Crouzon syndrome treated by frontofacial monobloc distraction osteogenesis, comprehensive orthodontics and orthognathic surgery.
The Use Of Pendulum Appliance Combines “Cutting Edge” Brackets In These Patients With Crowding Dentition, Fang-Yu Shen, Yi-Hwa Liu, Chun-Liang Kuo, Hui-Lin Chen
The Use Of Pendulum Appliance Combines “Cutting Edge” Brackets In These Patients With Crowding Dentition, Fang-Yu Shen, Yi-Hwa Liu, Chun-Liang Kuo, Hui-Lin Chen
Taiwanese Journal of Orthodontics
Using intraoral molar distalization appliance is one of the treatments of patients with crowding dentition besides extraction for crowding relief and achievement of normal occlusion. However, how to keep the space gained with the intraoral appliance for crowding relief is what we need to consider. In this paper, we use pendulum appliance combines "cutting edge" brackets (Tip-Edge Plus) in these patients with crowing dentition without other auxiliary intraoral or extraoral appliances.
Treatment Of Class Ii Division 1 Malocclusion With High Mandibular Plane Angle By Miniscrews – A Case Report, Hsin-Lan Shen, Eric Jein-Wein Liou
Treatment Of Class Ii Division 1 Malocclusion With High Mandibular Plane Angle By Miniscrews – A Case Report, Hsin-Lan Shen, Eric Jein-Wein Liou
Taiwanese Journal of Orthodontics
This 16-year-old female presents with Class II Division 1 subdivision right malocclusion, complicated by gummy smile, large mandibular plane angle and the mandibular right first molar missing. Treatment consisted of 4 temporary anchorage devices (TADs) application and extraction of bilateral maxillary first premolars and the mandibular left first premolar. Bimaxillary anterior and posterior teeth were intruded by miniscrews for counterclockwise rotation of the mandible. A very favorable result was achieved due to reduction of gingival display and the mandibular plane angle was decreased successfully.
Morphologic Characteristics Of Adult Patients With Facial Asymmetry Treated By Orthodontic Therapy Or Orthognathic Surgery, Yu-Chuan Tseng, Kai-Chieh Ou, Chin-Yun Pan, Szu-Ting Chou, Hong-Po Chang
Morphologic Characteristics Of Adult Patients With Facial Asymmetry Treated By Orthodontic Therapy Or Orthognathic Surgery, Yu-Chuan Tseng, Kai-Chieh Ou, Chin-Yun Pan, Szu-Ting Chou, Hong-Po Chang
Taiwanese Journal of Orthodontics
Facial asymmetry is a common feature in orthodontic patients. Mild skeletal facial asymmetry can be treated effectively by camouflaged orthodontic technique. Orthodontic treatment combined with orthognathic surgery would be suggested in some extreme cases of facial asymmetry. Although traditional posteroanterior cephalogram was 2D image, it was still full of reference meaning and value for diagnosing the asymmetric component in craniofacial area. The objective of this research was to investigate the differences in morphological characteristics of facial asymmetry patient who can be treated by orthodontic therapy only or combined orthognathic surgery. The pre-treatment postero-anterior cephalograms of two groups of 60 subjects …
Natural Development And Changes In Intercanine Widths Of Untreated Dentitions, Yueh-Tse Lee
Natural Development And Changes In Intercanine Widths Of Untreated Dentitions, Yueh-Tse Lee
Taiwanese Journal of Orthodontics
Dental arch dimensions undergo visible alterations as they grow, adapt, and age. Relatively rapid changes occur during the transitional dentition. Once a functional permanent dentition is established, smaller changes continue to be observed. The concept of maintainting of intercanine dimensions as an indicator for posttreatment stability has been supported by studies in the literature. An understanding of the development and changes in intercanine widths helps in distinguishing changes occurred from natural growth or appliance therapy, planning orthodontic treatment, and assessing stability and smile esthetics following orthodontic treatment. This article attempts to review the literature and summarizes the natural development and …
Comparison Of Mandibular Arch Changes With Self-Ligating And Conventional Brackets, Szu-Jung Huang, Yu-Chuan Tseng, Chin-Yun Pan, Szu-Ting Chou, Hong-Po Chang
Comparison Of Mandibular Arch Changes With Self-Ligating And Conventional Brackets, Szu-Jung Huang, Yu-Chuan Tseng, Chin-Yun Pan, Szu-Ting Chou, Hong-Po Chang
Taiwanese Journal of Orthodontics
The purpose of this research is to compare the arch changes after non-extraction orthodontic treatment on the mandibular crowding dentition between self-ligating and conventional bracket systems. Seventy-one samples that satisfied the criteria were selected from the patient database, including forty samples in the conventional bracket group and thirty-one in the self-ligating bracket group. Pre-treatment and post-treatment intercanine width, interpremolar width, intermolar width, arch perimeter and arch length were measured from the study cast, and angulation and position of mandibular incisors were measured from the cephalometric radiograph. The result showed that after non-extraction treatment on the crowding mandibular dentition, increases in …
Combined Anterior And Posterior Subapical Segmental Osteotomy Treatment Of Bimaxillary Protrusion With Chin Deficiency — A Case Report, Hsin-Lan Shen, Cheng-Ting Ho, Chen-Tah Huang
Combined Anterior And Posterior Subapical Segmental Osteotomy Treatment Of Bimaxillary Protrusion With Chin Deficiency — A Case Report, Hsin-Lan Shen, Cheng-Ting Ho, Chen-Tah Huang
Taiwanese Journal of Orthodontics
This case report presents a 39 years old female adult patient which diagnosis was skeletal Class II and dental Class III malocclusion with severe bimaxillary protrusion, chin deficiency and two maxillary supernumerary teeth over premolars area. The treatment plan were combined with orthodontic treatment and orthognathic surgery including bimaxillary anterior subapical segmental osteotomy, posterior subapical segmental osteotomy over right mandibular area and genioplasty. The treatment was finished in Angle’s Class I occlusion of both canine and molar relationships. Patient had normal overjet and overbite, lips competency and her facial esthetic have improved a lot. We also make some discussion about …
A Case Report – Half-Year-Follow Up Of A Case With Bilateral Condylar Head Missing Treated By Orthodontic Treatment Combined With Lefort I Osteotomy, Te-Ju Wu, Wen-Ching Tsai, Wei-Yung Hsu
A Case Report – Half-Year-Follow Up Of A Case With Bilateral Condylar Head Missing Treated By Orthodontic Treatment Combined With Lefort I Osteotomy, Te-Ju Wu, Wen-Ching Tsai, Wei-Yung Hsu
Taiwanese Journal of Orthodontics
This is a case report about an adult female patient with bilateral idiopathic condylar resorption. Extraoral check revealed obvious convex profile with retruded chin, lip incompetence; intraoral check revealed class I malocclusion with moderate crowding. Owing to the bilateral condylar resorption, the condyle position may not be easily hold during operation; besides, trying to maintain the integrity of whole mandible to avoid post treatment relapse. The final treatment plan was orthodontic treatment combined with LeFort I osteotomy. After post-surgical active retention for 1 year, final results showed improved facial profile. The half-year post-treatment follow up revealed up acceptable treatment result …
Treatment Of Skeletal Class Iii Malocclusion With Anterior Openbite With Skeletal Anchorage System, Li-Fang Hsu, Yi-Min Liu, Fong-Lan Chan, Chung-Chen Jane Yao, Yi-Jane Chen
Treatment Of Skeletal Class Iii Malocclusion With Anterior Openbite With Skeletal Anchorage System, Li-Fang Hsu, Yi-Min Liu, Fong-Lan Chan, Chung-Chen Jane Yao, Yi-Jane Chen
Taiwanese Journal of Orthodontics
Skeletal Class III with anterior open bite is one of the most challenging problems that orthodontists may encounter. Treatment modalities for skeletal openbite malocclusion include growth modification and surgicalorthodontic therapy; which treatment is chosen depends on the patient’s age and growth potential. Treatment considerations should focus on the patient’s facial profile, skeletal pattern, growth potential, and severity of dental malocclusion. Here, we present the nonsurgical orthodontic treatment of an adult patient with anterior openbite and high-angle skeletal Class III facial pattern. The soft tissue problems associated with anterior openbite included lip incompetency and tongue thrusting habit. We corrected the dental …
Cephalometric Linear Measurements On Conventional Digital Cephalograms And Cone-Beam Ct 3-D Craniofacial Images, Zwei-Chieng Chang, Yu-Chun Huang, Eddie Lai, Chung-Chen Yao, Yi-Jane Chen
Cephalometric Linear Measurements On Conventional Digital Cephalograms And Cone-Beam Ct 3-D Craniofacial Images, Zwei-Chieng Chang, Yu-Chun Huang, Eddie Lai, Chung-Chen Yao, Yi-Jane Chen
Taiwanese Journal of Orthodontics
Introduction: The purpose of this study was to investigate the correlation between the actual linear measurements on human skull and the cephalometric measurements obtained from conventional digital cephalogram and cone-beam computed tomography (CBCT) 3-D images. Materials and Methods: Lateral and postero-anterior cephalograms of 3 skulls were assessed by measuring the commonly used 11 linear measurements. The CBCT volume images were obtained and measured by using 3-D image software (i-CAT/ Simplant Pro 12.02). The measurements with conventionally manual tracing method, WinCeph software (2-D), and those on 3-D images were compared with the gold standards derived from repeated caliper measurements of the …
Application Of 3-Dimensional Casting Model From Ct Scan In The Orthognathic Surgery To Correct Facial Asymmetry – A Case Report., Yu-Jen Chang, Wen-Ching Tsai, Chia-Yu Wang, Wei-Yung Hsu
Application Of 3-Dimensional Casting Model From Ct Scan In The Orthognathic Surgery To Correct Facial Asymmetry – A Case Report., Yu-Jen Chang, Wen-Ching Tsai, Chia-Yu Wang, Wei-Yung Hsu
Taiwanese Journal of Orthodontics
In treating patients with facial asymmetry, orthognathic surgery is often needed in combination with orthodontic treatment. Conventional surgical treatment planning uses dental casts and two-dimensional radiography to predict the amount of movement needed. However, the real movement modeled on the mounted casts on the articulator cannot be simulated accurately based on the two-dimensional radiographs. In this case report, we presented a new method using three-dimensional casting model for surgical planning and design. This case report presented an 18-year-old female (at the time of surgery), diagnosed as Class III malocclusion with facial asymmetry. The surgical plan was orthodontic treatment combined with …