Open Access. Powered by Scholars. Published by Universities.®

Dentistry Commons

Open Access. Powered by Scholars. Published by Universities.®

4,956 Full-Text Articles 8,498 Authors 1,415,653 Downloads 140 Institutions

All Articles in Dentistry

Faceted Search

4,956 full-text articles. Page 6 of 177.

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 2022 Department of Dentistry and Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University; Department of Orthodontics, National Taiwan University Hospital

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.


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 2022 Department of Dentistry and Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University Department of Orthodontics, National Taiwan University Hospital

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 …


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 2022 Department of Dentistry and Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University Department of Orthodontics, National Taiwan University Hospital

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.


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 2022 Department of Dentistry and Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Department of Orthodontics, National Taiwan University Hospital

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.


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 2022 Department of Orthodontics, National Taiwan University Hospital

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 …


Orthodontic Management Of Transposed Canines In A Patient With Acute Lymphocytic Leukemia, Chun-Hsiang Wang, Shiu-Shiun Lin, Yng-Tzer J. Lin 2022 Department of Dentistry, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine

Orthodontic Management Of Transposed Canines In A Patient With Acute Lymphocytic Leukemia, Chun-Hsiang Wang, Shiu-Shiun Lin, Yng-Tzer J. Lin

Taiwanese Journal of Orthodontics

Acute lymphoblastic leukemia (ALL) makes up approximately 75% to 80% of childhood leukemia. Longterm survivors through current medical management make orthodontic treatment available. However, the risk of these patients should be carefully evaluated. After the patient has completed all cancer therapy and has at least a 2-year event-free survival, orthodontic treatment can be started. Patients with ALL sometimes have to accept a compromised treatment result and finish the treatment earlier than normal due to the concerns of recurrence. To treat the maxillary canine-first premolar transposition require a lengthy treatment time. However, every effort should be made to bring the transposed …


A Study Of The Relationship Between Medical Services Quality, Patient Satisfaction And Patient Loyalty For Orthodontic Patients, Tzu-Hsin Lee, Chien-Wen Chen, Chih-Tung Hsiao 2022 School of Dentistry, Chung Shan Medical University,Taiwan; Department of Dentistry, Chung Shan Medical University Hospital, Taiwan

A Study Of The Relationship Between Medical Services Quality, Patient Satisfaction And Patient Loyalty For Orthodontic Patients, Tzu-Hsin Lee, Chien-Wen Chen, Chih-Tung Hsiao

Taiwanese Journal of Orthodontics

The increasing demand for excellent quality of medical services by patients affects hospital performance under severe competition amongst Taiwan hospitals. A dental clinic can demonstrate successful performance when it meets the patient expectation, enhances the value of care and invests its resources to improve the treatment quality. Enhancement of the value of care and patient satisfaction will promote their loyalty and also increase revenue by taking the above factors into consideration. Hence the purpose of this study is to investigate the treatment effect on degree of satisfaction and loyalty for dental patients. A questionnaire for dental treatment satisfaction study (N …


An Investigation On Mechanical Properties Of Esthetic Orthodontic Archwires, Po-Yu Yang, Tzu-Hsin Lee 2022 School of Dentistry, Chung Shan Medical University,Taiwan; Department of Dentistry, Chung Shan Medical University Hospital, Taiwan

An Investigation On Mechanical Properties Of Esthetic Orthodontic Archwires, Po-Yu Yang, Tzu-Hsin Lee

Taiwanese Journal of Orthodontics

The main purpose of this study was to investigate the mechanical properties of Ni-Ti coated orthodontic archwires after surface modification. Universal test machine was used to measure the tensile strength of four groups of coated Ni-Ti wires and uncoated control group. Immersion test was applied for 21 days to discover whether the coating would peel off under friction and brushing after immersion. Student’s t-test was used to explore any difference between three groups of coated wires and uncoated conventional wires in mechanical properties. The results showed no statistical difference exists between coated Ni-Ti wires and conventional uncoated wires regarding to …


Literature Review: Corticotomy-Assisted Orthodontic Treatment, Lei Kang, Shou-Hsin Kuang, Tzu-Ying Wu 2022 Dentistry Department, Taipei Veterans General Hospital

Literature Review: Corticotomy-Assisted Orthodontic Treatment, Lei Kang, Shou-Hsin Kuang, Tzu-Ying Wu

Taiwanese Journal of Orthodontics

Corticotomy-assisted orthodontics (CAOT) can shorten orthodontic treatment time by increasing regional acceleratory phenomenon. The periodontal wound healing caused by corticotomy are similar to the periodontal tissue reaction induced by orthodontic force; if the two phenomena could be accumulated and both enhancing bone remodeling, orthodontic tooth movement should be accelerated theoretically. There are many different kinds of procedures and strategies in the clinical application of corticotomy-assisted orthodontics, but when the cost and benefit ratio for the patients are thoroughly considered, using minimal invasive corticotomy to assist orthodontic treatment may be more practical. As for the clinical efficacy of minimal invasive corticotomy, …


The Seond Series Of "Orthodontic Treatment's Influence Over Upper Airway": The Correlations Among 2d And 3d Methods In Airway Evaluation, Wei-Ting Tseng, Yao-Der Huang, Jenny Zwei-Chieng Chang, Ming-Hsien Lan, Shun-Hsin Chen, Yun-Yun Wu 2022 Department of Orthodontics, National Taiwan University Hospital

The Seond Series Of "Orthodontic Treatment's Influence Over Upper Airway": The Correlations Among 2d And 3d Methods In Airway Evaluation, Wei-Ting Tseng, Yao-Der Huang, Jenny Zwei-Chieng Chang, Ming-Hsien Lan, Shun-Hsin Chen, Yun-Yun Wu

Taiwanese Journal of Orthodontics

It has been more than seven decades that traditional two-dimensional (2D) image develops into threedimensional (3D) image. Due to the limited technology, 2D lateral cephalograms are traditionally used for airway assessment; however; the problem with cephalometry is that the 3D airway change can only be measured by linear measurement. Since 1990s, the development of cone beam computed tomography (CBCT) has offered more information for orthodontists, which is considered to be a diagnostic tool and initially served as the radiographic standard for airway assessment for patients with obstructive sleep apnea (OSA). Over the years, more studies on 3D reconstruction in airway …


Airway Changes By Orthodontic Tooth Movement At “Vertical” Dimension, Hsin-Ho Chen, Ya-Ting Huang, Chi-Ying Huang, Wen-Pei Wong, Hsin-Fu Frank Chang, Yuan-Yi Tung 2022 Department of Orthodontics, National Taiwan University Hospital

Airway Changes By Orthodontic Tooth Movement At “Vertical” Dimension, Hsin-Ho Chen, Ya-Ting Huang, Chi-Ying Huang, Wen-Pei Wong, Hsin-Fu Frank Chang, Yuan-Yi Tung

Taiwanese Journal of Orthodontics

Anterior open bite often combines with longer anterior facial height, higher mandibular plane angle, mandible clockwise rotation and mandible retrognathism. The facial profiles of patients with OSA ( obstructive sleep apnea syndrome) also often reveal mandible retrognathism. Therefore, it is an interesting subject that whether treating anterior open bite has the advantage of improving symptom of sleeping problem. This review article is to investigate the correlation of tooth movement in vertical dimension with airway, also investigate the influence of oral appliance height and surgery-treated open bite on airway.


Effect Of Orthodontics On Upper Airway. Series 1: Growth And Development Of Airway, Kuang-Hsuan Chang, Eddie Hsiang-Hua Lai, Kang-Yee Wang, Hui-Jen Tsai, Chih-Liang Julian Ho 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

Effect Of Orthodontics On Upper Airway. Series 1: Growth And Development Of Airway, Kuang-Hsuan Chang, Eddie Hsiang-Hua Lai, Kang-Yee Wang, Hui-Jen Tsai, Chih-Liang Julian Ho

Taiwanese Journal of Orthodontics

Comprehensive treatment of the facial skeleton and occlusion requires an understanding of all functional variables, including the upper airway. Numerous reports have shown a causal relationship between the upper airway and respiratory mode in the development of facial morphology and malocclusion. This article reviewed the airway assessment in normal subjects during growth and development, obstructive sleep apnea (OSA) subjects and malocclusion subjects.


Extraction Or Non Extraction Treatment Of Class Ii Division Ii Malocclusion Adult Patients – Cases Report, Chen-Han Tsou, Chun-Liang Kuo, Yi-Hua Liu, Yuan-Yi Wang 2022 Zuoying Branch of Kaohsiung Armed Forces General Hospital; Department of Orthodontics, Chi Mei Medical Center

Extraction Or Non Extraction Treatment Of Class Ii Division Ii Malocclusion Adult Patients – Cases Report, Chen-Han Tsou, Chun-Liang Kuo, Yi-Hua Liu, Yuan-Yi Wang

Taiwanese Journal of Orthodontics

The cases of Angle Class II Division 2 malocclusion are rare in the population. These cases are characterized by retroclined upper anteriors and deep overbite. Facial profile have relatively retrusive lips as well as prominent chins. Extraction of premolars followed by incisor and lip retraction will further retrude the lips. So decided the extraction treatment plan of these patient requires careful diagnosis. In this case report, we will discuss the considerations of extraction or non-extraction treatment of Class II division 2 malocclusion.


Treatment Of Early Implanted Upper Anterior Teeth By Modified Distraction Osteogenesis And Orthodontic Treatment, Wei-Min Yang, Ya-Yi Chen, Yu-Liang Chang, Huey-Ling Chen 2022 Division of Orthodontics, Department of Dentistry, Chang Gung Memorial Hospital, Linkou, Taiwan; Division of Oral Surgery, Department of Dentistry, Chang Gung Memorial Hospital, Linkou, Taiwan

Treatment Of Early Implanted Upper Anterior Teeth By Modified Distraction Osteogenesis And Orthodontic Treatment, Wei-Min Yang, Ya-Yi Chen, Yu-Liang Chang, Huey-Ling Chen

Taiwanese Journal of Orthodontics

The replacement of teeth by osseointegrated implants is usually restricted to patients with completed craniofacial growth. Implant insertions in children, adolescents and young adults who we refer to as young patients are circumvented due to several unfavorable potential effects including trauma to tooth germs, tooth eruption disorders, and multidimensional restrictions of dental alveolus and skeletal craniofacial growth. The clinical and radiographic findings have clearly shown that the implants do not behave like normal erupting teeth during the development of the dentition. Neither does the fixtures move together with the adjacent teeth, but behaves more like ankylosed teeth. This was a …


Non-Extraction Orthodontic Treatment Of Bilateral Maxillary Canine Impaction – A Case Report, Pei-Chen Wu, Tzu-Hsin Lee 2022 Department of Dentistry, Chung Shan Medical University Hospital, Taiwan

Non-Extraction Orthodontic Treatment Of Bilateral Maxillary Canine Impaction – A Case Report, Pei-Chen Wu, Tzu-Hsin Lee

Taiwanese Journal of Orthodontics

The ectopic eruption and impaction of maxillary permanent canines is a frequently encountered clinical problem.The diagnosis and treatment of this problem usually requires the expertise of orthodontist.In this case report,we present the treatment of a 14-year-old male patient with delaying eruption of bilateral upper permanent canine.The patient received full mouth non-extraction orthodontic treatment with surgical exposure of upper permanent canine.The patient was satisfied with the treatment outcome.


Orthodontic Treatment With Maxillary Canine Substitution For Lateral Incisor – A Case Report, Pei-Chun Twu, Chia-Chen Li, Shen-Chieh Lin, Hwai-Jen Fong, Tzu-Ying Wu 2022 Dentistry Department, Taipei Veterans General Hospital, Taipei, Taiwan; School of Dentistry, National Yang-Ming University, Taipei, Taiwan

Orthodontic Treatment With Maxillary Canine Substitution For Lateral Incisor – A Case Report, Pei-Chun Twu, Chia-Chen Li, Shen-Chieh Lin, Hwai-Jen Fong, Tzu-Ying Wu

Taiwanese Journal of Orthodontics

Patients with peg lateral incisors combined space discrepancy can be treated by either replacing or restoring the lateral incisor after space redistribution, or by removing peg lateral incisor and positioning the canine to simulate the lateral incisor. This case report describes the treatment of a 14-year-old female. Her chief complaint is upper left side canine impaction. It is also found she has bilateral peg-shaped maxillary lateral incisors. Treatment involved extraction of two maxillary lateral incisors and two mandibular second premolars. Maxillary canines and first premolars substituted for lateral incisors and canines. After 26 months of treatment, the esthetic was improved …


The Effects Of Beverage On Orthodontic Wires – Research Report, Yun-Shan Lee, Po-Yu Yang, Tzu-Hsin Lee 2022 Department of Dentistry, Chung-Shan Medical University Hospital, Tai-Chung, Taiwan

The Effects Of Beverage On Orthodontic Wires – Research Report, Yun-Shan Lee, Po-Yu Yang, Tzu-Hsin Lee

Taiwanese Journal of Orthodontics

Orthodontic patients who love acidic soft drinks will increase the opportunity of enamel erosion, corrosion of orthodontic appliance, discoloration of resin and bonding agent, dental caries, obesity, decrease of orthodontic brackets bonding strength and so no. However, whether these acidic soft drinks would affect orthodontic wires were seldom discussed. The purpose of this study was to investigate the effect of acidic soft drinks on orthodontic wires. The orthodontic wires are divided into 3 groups: 0.016-inch stainless steel round wire, 0.016-inch NiTi round wire, and 0.016-inch TMA round wire. And each wire group subdivided by four subgroups: Coca-Cola, Sprite, black tea, …


Comparison Of The Initial Nasolabial Changes By 2 Different Alar Base Cinch Suture Techniques In Class Iii Patients Who Received Two-Jaw Orthognathic Surgery, Yi-Hsuan Chen, Cheng-Hui Lin, Ellen Wen-Ching Ko 2022 Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan; Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan; Graduate Institute of Craniofacial and Oral Science, Chang Gung University, Taoyuan, Taiwan

Comparison Of The Initial Nasolabial Changes By 2 Different Alar Base Cinch Suture Techniques In Class Iii Patients Who Received Two-Jaw Orthognathic Surgery, Yi-Hsuan Chen, Cheng-Hui Lin, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

This study compared the effectiveness of the conventional and a new modified alar base cinch technique on changes in the nasolabial morphology after bimaxillary orthognathic surgery. Materials and methods: The prospective, blinded, randomized controlled study recruited 32 Taiwanese skeletal Class III patients (aged 18- 37 years). All of the patients had received bimaxillary orthognathic surgery to correct skeletal discrepancies.During the intraoral wound-closing procedure, patients were equally separated into 2 groups. A conventional group (C, 16 patients) received the conventional alar base cinch technique; a modified group (M, 16 patients) received the modified alar base cinch technique. The nasolabial region was …


Nonsurgical Maxillary Expansion In Adults – Literature Review, Jui-Hsien Yang, Yun-Yun Wu 2022 Orthodontic Division, Department of Dentistry, Cathay General Hospital, Taipei, Taiwan

Nonsurgical Maxillary Expansion In Adults – Literature Review, Jui-Hsien Yang, Yun-Yun Wu

Taiwanese Journal of Orthodontics

Early treatment with maxillary expansion has been recommended for child with transverse discrepancies, particularly unilateral crossbite, because it has been developed to skeletal asymmetries. It also routinely expanded early to relieve crowding, due to the middle palatine suture of maxilla can be open in the child and adolescence periods.As age increase, the middle palatine suture becomes more interdigitated, surgically assisted rapid maxillary expansion is necessary in adult. This article reviews treatment consideration, methods, appliances, mechanism, stability of nonsurgical maxillary expansion and how used in adult patient. We also present a clinical case to confirm quad helix appliance can treat maxillary …


Long-Term Follow Up Of Two-Stage Treatment Of Skeletal Class Ii Malocclusion – Case Report, Hui-I Chen, Hsiang-Min Hsu, Wen-Hui Hsieh 2022 Department of Orthodontics, Chang Hua Christian Hospital

Long-Term Follow Up Of Two-Stage Treatment Of Skeletal Class Ii Malocclusion – Case Report, Hui-I Chen, Hsiang-Min Hsu, Wen-Hui Hsieh

Taiwanese Journal of Orthodontics

The common treatment protocol for skeletal Class II malocclusion during mixed dentition is a two-stage treatment, namely functional appliance followed by fixed appliance. The goal of the functional appliance is to enhance the horizontal growth of mandible. After reevaluation, the second stage of fixed appliance is implemented. This is a 2-case report of skeletal Class II malocclusion. Both clinical examinations showed mandible retrognathia, large overjets and full Class II Angle’s molar relationships. Two-stage treatments were undertaken. After functional appliances, overjets were reduced and Class I molar relationships were achieved. Following that, fixed appliances were carried out without extraction of teeth …


Digital Commons powered by bepress