Combined Fronto-Facial Monobloc Distraction Osteogenesis And Orthognathic Surgery In A Patient With Crouzon Syndrome – A Case Report,
2022
Graduate Institute of Craniofacial and Oral Science, Chang Gung University, Taoyuan, Taiwan; Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan
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,
2022
Department of Orthodontics, Chi Mei Medical Center
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,
2022
Department of Orthodontics, Chang Gung Memorial Hospital, Linkou Branch, Taiwan; Collage of Medicine, Chang Gung University, Taoyuan, Taiwan
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,
2022
Department of Orthodontics, Dental Clinics, Kaohsiung Medical University Hospital; Graduate Program, School of Dentistry, College of Dental Medicine, Kaohsiung Medical University
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,
2022
Department of Orthodontics and Craniofacial Dentistry, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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,
2022
Department of Orthodontics, Dental Clinics, Kaohsiung Medical University Hospital; Graduate Program, School of Dentistry, College of Dental Medicine, Kaohsiung Medical University
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,
2022
Department of Orthodontics, Chang Gung Memorial Hospital, Linkou branch, Taiwan; Collage of Medicine, Chang Gung University, Taoyuan, Taiwan
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,
2022
Department of Orthodontics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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,
2022
Department of Orthodontics, National Taiwan University Hospital
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,
2022
Department of Orthodontics, School of Dentistry, National Taiwan University, Taipei, Taiwan;Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
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.,
2022
Department of Orthodontics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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 …
Intraoral Iatrogenic Injuries In Orthodontics: Etiology, Prevention, And Management,
2022
Department of Dentistry, Taoyuan Armed Forces General Hospital
Intraoral Iatrogenic Injuries In Orthodontics: Etiology, Prevention, And Management, Te-Yi Teng, Yu-Kun Chih
Taiwanese Journal of Orthodontics
The iatrogenic injuries, which often lead to medical tangles, have been widely discussed in recent years.The areas of intraoral iatrogenic injuries in orthodontics include both hard tissues and soft tissues: tooth, alveolar bone, gingiva, oral mucosa, nerve and so on. Almost every procedure during orthodontic therapy could result in unpredictable injuries. To avoid negative effects, the clinicians should understand all causes of various iatrogenic injuries, and take measures during orthodontic treatment. This article discusses the etiologies, prevention and management of intraoral injuries, and it may help for clinicians.
Treatment Of Asymmetric Premolar Extractions With Mini-Implant – Case Report,
2022
Department of Orthodontics, Wan Fang Hospital
Treatment Of Asymmetric Premolar Extractions With Mini-Implant – Case Report, Chih-Yu Lin, Li-Hsiang Lin, Chih-Peng Su, Sheng-Yang Lee
Taiwanese Journal of Orthodontics
A case was presented with an adult male patient diagnosed as skeletal class III and dental class I malocclusion, and complaining of his dental crowding. Undergone orthodontic related examinations and periodontal evaluations, the treatment plan was to combine atypical extraction with insertion of mini-implants into mandible, in order to facilitate control of anchorage. After the treatment, lateral profile and occlusion were both apparently improved. Discussions were made about usage of mini-implants in this case and other possible ways to treat the patient.
Correction Of A Lingual Tipped Mandibular Second Molar With Miniscrew Orthodontics – Case Report,
2022
Department of Pediatric Dentistry, Chang Gung Memorial Hospital, Taipei, Taiwan
Correction Of A Lingual Tipped Mandibular Second Molar With Miniscrew Orthodontics – Case Report, Chun-Hung Yu, Sam Sheng-Pin Hsu, Yang-Ming Chang
Taiwanese Journal of Orthodontics
A case of a 14 y/o male patient with a lingually impacted mandibular right 2nd molar was presented. After the third molar was extracted, a closed coil spring was used to connect the impaction to a miniscrew inserted in the nearby buccal shelf. Throughout the treatment process, all orthodontic appliances were hidden underneath the flap. The advantage of this closing flap technique is that it improves patient comfort while minimizing irritation to the surround muscle and soft tissue. Treatment options for uprighting lingually impacted mandibular 2nd molar, clinical considerations of orthodontic miniscrew placement, and design of biomechanics were also discussed.
Combined Surgical And Orthodontic Treatment Of Palatally Impacted Canines – A Case Report,
2022
Graduate Student, Institute of Oral Medicine, College of Medicine, National Cheng Kung University
Combined Surgical And Orthodontic Treatment Of Palatally Impacted Canines – A Case Report, Chen-Jung Chang, Jia-Kuang Liu, Shih-Chung Liao, Chuan-Yang Chang
Taiwanese Journal of Orthodontics
Maxillary canines are essential for function and esthetics. Patients with impacted maxillary canine are considered to be more difficult to treat than the average orthodontic patients because successful treatment requires proper surgical technique and orthodontic mechanisms. This case report describes the treatment of a 10-year-old boy with a palatally impacted canine and rotated premolar. Using closed exposure with placement of an attachment, following by distal orthodontic force to bring the canine crown away from the root of lateral incisor, then buccal traction into normal occlusion. Total treatment time was 2 years and six months. We obtained favorable esthetics and stable …
Factors Affecting The Treatment Duration Of Forced Eruption Of Impacted Incisors – A Reprospective Study,
2022
Division of Orthodontics, Department of Dentistry, Taichung Veterans General Hospital
Factors Affecting The Treatment Duration Of Forced Eruption Of Impacted Incisors – A Reprospective Study, Liang-Ru Chen, Hsin-Yi Lo, Kwong-Wa Li, Jeng-Fen Liu, Yong-Kie Wong
Taiwanese Journal of Orthodontics
Purpose: The purpose of this study was to evaluate the possible factors that affected the duration of forced eruption of impacted upper incisors. Methods: 24 patients (mean age eight years and nine months old ), 25 upper impacted incisors were included in this study. Factors analysed included the age, the distance from impacted incisor edge to the occlusal plane, presence of odontoma or supernumerary tooth, the crown orientation,eruption space loss and root dilaceration. Standardized panoramic radiograph was used as measurement tool.Results: The treatment duration is positively correlated to the distance from the incisor ledge to the occlusal plane (R2 =0.21; …
Diagnosis Of Impacted Permanent Maxillary Canines,
2022
Department of Orthodontics, National Taiwan University Hospital
Diagnosis Of Impacted Permanent Maxillary Canines, Pi-Huei Liu, Hui-Chen Tsai, Mu-Hsiung Chen, Te-Lan Chien, Jenny Zwei-Chieng Chang, Chung-Chen Jane Yao
Taiwanese Journal of Orthodontics
Maxillary permanent canine impaction is a dental anomaly often seen in orthodontic practice. Many articles discussed about the diagnosis and prognosis of impacted canine in these years. This article summarized several methods of early diagnosis and the prognosis prediction for canine impaction, thus, can help dentists to make appropriate treatment plans.
Cephalometric Study Of Adult Class Iii Malocclusions Treated With Orthodontic Therapy Or Orthognathic Surgery,
2022
Department of Orthodontics, Kaohsiung Medical University Hospital; Graduate Program, Faculty of Dentistry, College of Dental Medicine, Kaohsiung Medical University
Cephalometric Study Of Adult Class Iii Malocclusions Treated With Orthodontic Therapy Or Orthognathic Surgery, Yu-Chuan Tseng, Chen-Yi Liao, Hong-Po Chang
Taiwanese Journal of Orthodontics
The Class III malocclusion is the most difficult anomalies to understand. The purpose of this study was to investigate the differences in morphological characteristics of Class III malocclusion patient who can properly treated by orthodontic treatment only or combined orthognathic surgery. To find the most important morphological factors those influence the treatment planning and predict probability of orthognathic surgery. The pre-treatment lateral cephalograms of two groups of 80 subjects (40 orthodontic and 40 surgical) with Class III malocclusion were analyzed. Thirty-seven linear, proportional, angular and soft tissue measurements were made. Two sample t test was applied to identify the dentoskeletal …
Long-Term Follow-Up Of Class Iii Malocclusion–Two Case Reports In Two Siblings With Different Treatment Outcome,
2022
Dr. Su's Dental Clinic
Long-Term Follow-Up Of Class Iii Malocclusion–Two Case Reports In Two Siblings With Different Treatment Outcome, Yu-Ling Cheng, Chia-Chen Li, Ming-Jeaun Su
Taiwanese Journal of Orthodontics
Anterior crossbite is a common clinical problem that requires early diagnosis and proper treatment. Here we report on a pair of siblings with anterior crossbite. They have a similar dental and facial profile at the start of treatment, but developed different types of dental facial patterns on follow-up. Our report highlights that it is difficult to precisely predict the facial growth simply based on patient’s family history and the data of cephalometric analysis. Young patients with growth potential should be monitored continuously after orthodontic treatment. Second orthodontic treatment or orthognathic surgery may sometimes be required to correct a severe dentofacial …
The Case Report On Self Ligation Metal Brackets Applied On Skeletal Class Iii Malocclusion Combined With Orthognathic Surgery,
2022
Chung Shan Medical University Hospital, Orthodontic Department
The Case Report On Self Ligation Metal Brackets Applied On Skeletal Class Iii Malocclusion Combined With Orthognathic Surgery, Shirly Liew, Hoi-Shing Luk, Chia-Tze Kao
Taiwanese Journal of Orthodontics
To accelerate the orthodontic treatment time, more self ligating brackets were applied clinically. This case reported on by applying self ligating bracket on patient who needed orthodontic treatment and orthognathic surgery. This is a class III skeletal malocclusion with mandible prognathic profile. The patient is asking for reducing mandible prognathism. After orthodontic examination, the treatment plan was designed as orthodontic treatment first then orthognathic surgery later. The orthodontic phase was by applying self ligating bracket (Carriere) to decompensate mandible lower incisors and align the teeth. The next step was surgery phase which was performed the orthognathic surgery on mandible by …
