The Historical Progress Of The Orthodontics, Part I, Te-Ju Wu, Wen-Ching Tsai

Taiwanese Journal of Orthodontics

The orthodontic treatment has become the popular choice while the public seeking for optimal occlusal function and esthetics. The discomfort accompanied with the treatment progress is gradually faded out by the post-treatment surprise. Taking a broad view, as the secret veil is lift off, the modern orthodontic treatment is chasing a whole new vision vigorously. However, as seeing the past, we should realize what we get now is not easily come by. Beginning from a division of oral medical science, the orthodontics is now regarded as a professional specialty. With the diversity, splash and the persistency for outstanding, the every …

Correction Of Mandibular Prognathism With Double- Jaw Surgery And Clockwise Rotation Of The Occlusal Plane- Case Report, Sam Sheng-Pin Hsu, Chiung-Shing Huang, Eric Jein-Wein Liou, Ellen Wen-Ching Ko, Clement Cheng-Hui Lin, Yu-Ray Chen

Taiwanese Journal of Orthodontics

An alternative surgical treatment plan was presented to show how to efficiently correct mandibular prognathism without large overjet discrepancy presented. The protrusive chin was eliminated through clockwise rotation of the occlusal plane and maxillo-mandibular complex. Within this method, no complicated orthodontic treatment was needed and the total treatment time was therefore shortened. The smiling arc was also improved. The philosophy, clinical application, long term stability, and side effects of the occlusal plane manipulation in orthognathic surgery were discussed.

Early Orthodontic Treatment For An Anterior Cross-Bite Malocclusion With Modified Hawley Appliance And 2×4 Fixed Appliance - A Case Report, Shang-Hung Tsai, Tzu-Hsin Lee

Taiwanese Journal of Orthodontics

The etiology of anterior cross-bite is multi-factor and the advocated treatment options were abundant. Early orthodontic treatments including chin-cap, face mask and palatal expansion have been recommended by many scholars. But some other clinicians would delay the orthodontic treatment combined with orthognathic surgery for Class III cases till the completion of growth, if there were no obvious detriment to patients’ oral function or psychological impact to their social life. However, for cases of non-skeletal anterior cross-bite (Pseudo-Class III) malocclusion, early orthodontic correction would be beneficial to normal maxillary forward growth and may prevent occlusal trauma of anterior teeth. This case …

The Possibility Of Acceleration In Orthodontic Tooth Movement, Yu-Jia Liou, Ellen Wen-Ching Ko, Eric Jein-Wein Liou, Betty Chien-Jung Pai

Taiwanese Journal of Orthodontics

In recent times, orthodontic treatment has attained significant interest and momentum. It has become more acceptable and admirable as a prime modality of treatment that not only enhances the facial esthetics but also can improve the function of the orofacial structures, than ever before. However, the layperson perceives it to be a treatment modality which consumes drastically longer period of time. Recent research pertaining to faster orthodontic tooth movement has dwelled in to this overwhelming area of reduced and more efficient treatment time. This review article specifically deals with such modalities of treatment which could elicit shorter treatment period than …

An Overview Of Motivation For Orthodontic Treatment, Hsin-Chung Cheng, Pei-Shuan Chen, Chun-Yi Kao, Chen-Chiou Chen

Taiwanese Journal of Orthodontics

Factors that affect the results of orthodontic treatment are various, and the understanding of motivation for orthodontic treatment is one of the most important because of its reference value in clinical diagnosis and treatment planning. In the past, there was just a few researches relating to this subject and most of them were conducted by questionnaire. Because of the differences methods of experimental design, the results varied. This review paper collect related articles in recent twenty years and analyze them in seven ways, including the definition of motivation, factors affecting orthodontic motivation, the relationship between orthodontic motivation and malocclusion and …

A Review Of The Relationship Between Facial Morphology In Vertical Dimension And The Masticatory Musculature, Yu-Ting Chiu, Wen-Ching Ko

Taiwanese Journal of Orthodontics

The orthodontic treatment philosophy and strategy toward patients with different vertical facial pattern such as open bite or deep bite, long face or short face, are usually different. The relationship between facial morphology in vertical dimension and masticatory musculature are always interested by orthodontists. However, the cause and effect relationship between muscle function and facial morphology is still inconclusive. To get a better understanding of previous works, this article mainly reviews the relationship between function and form into three aspects: bite force, cross-sectional area of muscle, orientation and mechanical advantage of muscle.

Tooth Transposition, Ya-Ting Wang, Jenny Zwei-Chieng Chang, Yi-Jane Chen, Chung-Chen Jane Yao, Eddie Hsiang-Hua Lai

Taiwanese Journal of Orthodontics

Tooth transposition is a big challenge for many orthodontists. We need more information and knowledge to diagnosis and plan treatment sequence correctly. However, let the teeth in the transposed position is sometimes the best choice after taking everything into consideration. But what is the etiology for teeth transposition？ How to diagnosis？Is there anything we could do to prevent teeth transposition？ All of these we would like to know. The purpose of this article is to review papers about tooth transposition. We hope it will be helpful for clinicians.

Orthodontic Molar Uprighting - Literature Review, Hsin-Yi Hsieh, Wen-Ching Ko, Chiung-Shing Huang

Taiwanese Journal of Orthodontics

Tipped molar is a relatively common occurrence in adult dentition. The objective in orthodontic molar uprighting is ideal positioning of the molar which will eventually become an abutment tooth for a fixed prothesis. The ideal position will improve the periodontal environment for the molar. The benefits provided by molar uprignting are: abutment preparations are simplified; pontic design is improved; reduced mesial periodontal infra-bony defect and so on. In present review article, several appliances and techniques are described for uprighting molars.

10-Minute Ebd: Can A Vacuum-Formed Retainer Replace A Bonded Orthodontic Retainer?, Joshua Dickie

The Journal of the Michigan Dental Association

The Ten-Minute Evidence-Based Dentistry Column illustrates how to implement the evidence-based dentistry search process to quickly identify and apply the best literature to answer a clinical question. Through critical appraisal, the author of this article answers the clinical question of the effectiveness of vacuum-formed retainers (VFRs) compared to bonded orthodontic retainers in maintaining tooth positioning and promoting oral hygiene. The study reviews existing literature and highlights the challenges in evaluating the two types of retainers, primarily due to patient compliance with VFRs. While some studies suggest that bonded retainers provide better short-term retention, the choice between retainers depends on various …

J Mich Dent Assoc August 2022

The Journal of the Michigan Dental Association

Monthly, The Journal of the Michigan Dental Association brings news, information, and feature articles to our state's oral health community and the MDA's 6,200+ members. No publication reaches more Michigan dentists! In this August 2022 issue, the reader will find the following original content:

• A cover story on choosing to partner with a Dental Service Organization (DSO)
• A conversation with three dentists on how and why they are involved with organized dentistry.
• A 10-Minute EBD on the efficacy of vacuum-formed removable orthodontic retainers
• News you need, an Editorial, a report from our ADA Trustee and regular department articles, Dentistry and …

The Effect Of Silver Diamine Fluoride On Bond Strength Of Three Types Of Bulk-Fill Restorative Materials To Dentin., Nasrin Danaeifar, Amir Hossein Nejat, Zafar Cehreli, Richard W. Ballard, Jeffrey T. Johnson

School of Dentistry Faculty Publications

No abstract provided.

Orthodontic Correction Of A Completely Transposed Impacted Maxillary Canine, Yi-Jen Tsai, Chung-Li Wang, Chun-Liang Kuo, Yi-Hua Liu, Chun-Hsiu Yang, Yu-Ling Tsai, Chien-Hung Lin

Taiwanese Journal of Orthodontics

In complete dental transposition, aligning the transposed teeth to its normal anatomic position is always a complicated and difficult challenge, which needs multiple clinical considerations. This case report illustrates an orthodontic treatment of a 20-year-old female patient who had a concave profile, skeletal and dental Class III malocclusion with anterior crossbite and complete transposed maxillary left lateral incisor and impacted canine. The correction of transposition was performed by moving the canine by maintaining its high position in the vestibular fold and use lever arm and temporary anchorage device (TAD) to facilitate traction of the maxillary canine. Vestibular incision subperiosteal tunnel …

Severe Obstructive Sleep Apnea With Skeletal Class Ii Malocclusion Treated With Marpe And Maxillomandibular Advancement Surgery, Chao-Yu Jeremy Lu, Yu-Feng Chen, Yu-Chuan Tseng, Shih-Hsuan Lin

Taiwanese Journal of Orthodontics

A 27-year-old male patient was diagnosed as severe obstructive sleep apnea (OSA), having problems of skeletal Class II jaw related with mandibular retrognathism, orthodivergent facial pattern, dental Class II malocclusion, and occlusal plane canting. By intervention of miniscrew assisted rapid palatal expansion (MARPE) and maxillomandibular advancement (MMA), the clinical result presented significant improvement in functional and esthetic aspects after 18 months of treatment.

Strategies Of Non-Extraction Treatment For Class Lll Malocclusion, Tao-Wei Chang, Hoi-Shing Luk, Wen-Ken Tai, Chih-Chen Chou, Chia-Tze Kao

Taiwanese Journal of Orthodontics

The decision of whether to have an extraction or non-extraction treatment plan is a controversial issue for an orthodontist. Many orthodontic techniques can help to resolve the crowding dentition by using the non-extraction treatment plan. This case report describes the correction of Class III molar malocclusion with the application of two mini-screws. The line of action of the force from the temporary anchorage devices pass through the center of resistance in the mandible, therefore the movement of the lower arch can be controlled without lingual tipping or intrusion of the mandibular incisors. At the end of the treatment, Class I …

Evaluation Of Pain-Relieving Effect Of Menthol And Benzocaine Patches In Orthodontic Patients: A Triple-Blind Randomized Controlled Trial, Sanaz Soheilifar, Mehdi Zandian, Maryam Farhadian, Sara Soheilifar, Fatemeh Dehghani, Sepideh Soheilifar, Navid Naghdi

Taiwanese Journal of Orthodontics

Purpose: This study aimed to compare the effect of benzocaine and menthol patches on pain alleviation following elastomeric separator placement.
Patients and Methods: This triple-blind split-mouth trial was conducted on healthy 14-25 years old patients of orthodontic department. Eligibility criteria included presence of second premolar, first and second molars in both sides of the mandible, no chronic pain in oral cavity, or chronic consumption of analgesic drugs. Elastomeric separators were placed mesial and distal of first mandibular molars and patients were randomized into two groups: 1) menthol/ placebo patches, 2) benzocaine/ placebo patches. The mucosal patches were placed …

Important Orthodontic Considerations In Preparation Of Orthognathic Surgical Cases, Ib Leth Nielsen

Taiwanese Journal of Orthodontics

Nowadays some adult patients seeking for orthodontic treatment may present severe malocclusion associated with pronounced skeletal discrepancies. Accordingly, thorough consideration and planning would be beneficial for the patient by the combined efforts of orthodontic and orthognathic approaches. This review reiterated the genetic impact on the growth velocity of the jaw with age in Class III malocclusion, and outlined the treatment protocol for the steps including the initial evaluation, the diagnosis, and the alignment of the teeth and dental arches before and after surgical correction. Specifically, emphasis is addressed on how to obtain records of jaw relationship in centric relation (CR) …

Evaluation Of Anchorage Loss Following Anterior Segment Retraction Using Friction Versus Frictionless Mechanics: A Randomized Clinical Trial, Dorra Izzat Bakhit, Heba Mohamed Dehis, Yehia A. Moustafa, Fouad A. El Sharaby

Future Dental Journal

Objective: Evaluation of anchorage loss following anterior segment retraction (ASR) using friction versus frictionless mechanics when mini-screws are directly and indirectly loaded using Cone beam computed tomography (CBCT). Material and methods: Thirty females with bimaxillary protrusion were randomly allocated into two groups, friction and frictionless. In friction group, a hook was crimped on 0.017- by 0.025-inch stainless steel wire distal to the lateral incisor and elastomeric chain rendering 160 g/side extending between the hook and mini-screw implant to complete the ASR. In the frictionless group, canines were ligated to the mini-screws for indirect anchorage then ASR was done using closing …

Canine Retraction Rate And Angulation With 0.017”X0.025” Versus 0.016”X0.022” Stainless Steel Arch Wire With A Power Arm, Amr R. El-Beialy, Fouad A. El Sharaby, Hend S. Elsayed

Future Dental Journal

Background: The dimensions of the arch wire affect its stiffness and the play between the wire and bracket. Canine retraction over stiffer arch wires limits the degree of canine tipping. However, the greater the wire dimensions, the greater the resistance to sliding. Frictional resistance is known to delay tooth movement. Aim: The aim of this controlled clinical trial was to compare canine retraction rate and angulation with 0.017”X0.025” versus 0.016”X0.022” stainless steel arch wire with a power arm. Materials and Methods: Twenty-four Class II malocclusion patients (age 13.8± 2.6 years) participated in this study. The teeth were leveled and aligned. …

Prevalence Of Temporomandibular Disorders Among Orthodontic Patients (Cross-Sectional Clinical Survey), Manar Souhail Youssef, Ahmad Tarabaih, Aly Osman

BAU Journal - Health and Wellbeing

Orthodontic treatment as a risk factor for the development of temporomandibular disorders (TMD) has been a controversy in literature. The aim of this study was to evaluate the prevalence of TMD, as defined in the Diagnostic Criteria (DC)/TMD Axis II, among orthodontic patients. A cross-sectional study (N=180) consisted of 3 groups: 60 control patients seeking orthodontic consultation, 60 patients undergoing orthodontic treatment for 3-5 months, 60 patients undergoing orthodontic treatment for 10-14 months. Patients answered a structured questionnaire that rated their oral parafunctions according to the Oral Behavior Checklist (OBC), pain intensity levels according to the Graded Chronic Pain Scale …

Effect Of Brushing Time With A Whitening Dentifrice On Surface Roughness Of Anterior Composite Resins, Ahmet Hazar, Sinem Akgül, Sibel Koçak, Mustafa Murat Koçak

Journal of Dentistry Indonesia

Objectives: This study aimed to compare the surface roughness of three anterior composite resins with different filler size, rate, and shape after brushing for 5000, 10000, and 20000 cycles with a whitening dentifrice. Methods: 44 disk-shaped specimens of each material (5mm diameter, 2mm depth) G-aenial Anterior, Harmonize, Asteria were prepared and divided into four groups according to the brushing cycles (Initial, 5000, 10000, and 20000 cycles). Initial surface roughness values (Ra-values) were assessed using a profilometer and measurements were repeated after each brushing cycle. 4 specimens from each composite resin were observed by scanning electron microscopy before and after brushing. …

Evaluation Of The Effect Of Two Polishing Techniques And Thermocycling Process On Surface Roughness, Hardness, And Color Stability Of Composites, Muhammet Fidan, Zeynep Dereli

Journal of Dentistry Indonesia

Objectives: The aim of this study was to evaluate the effect of two polishing techniques and 10.000 thermocycles on the color stability, surface roughness, and hardness of two nanohybrid (Tetric N-Ceram, Escom100) and one bulkfill (Filtek) resin composites. Methods: A total of 60 specimens were prepared using three resin composites and 20 discs from each composite. Specimens for each composite were randomly divided into two different polishing groups (Optrapol rubber and Sof-Lex discs) (n=10). Surface roughness (Ra, μm), microhardness (VHN), and color change (ΔE00) values were measured pre- and post-thermocycling. Two-way analysis of variance (ANOVA) was used to evaluate …

A Comparison Of Four Different Methods Of Prediction Of Mesiodistal Widths Of Unerupted Permanent Canines And Premolars, Waqar Jeelani, Washma Asad, Maheen Ahmed

Journal of Dentistry Indonesia

The success of orthodontic treatment depends upon the accurate assessment of mesiodistal widths of unerupted canines and premolars in mixed dentition stage. There are several methods available for mixed dentition analysis with dubious reliability in our population. Objective: To statistically develop new prediction equations for Pakistani subjects to predict the widths of unerupted upper canines and premolars (U345) and lower canine and premolars (L345) using mesiodistal widths of lower incisors (I1I2) and lower incisors and first molars (I1I2M1) and compare their performance with previously established methods of Moyers and Tanaka-Johnston. Methods: Study was conducted using the data from the dental …

Laypersons’ Perception Towards Gummy Smile And Facial Types: Acceptability And Treatment Benefit, Noraina Hafizan Norman, Anis Azyan Ahmad Othman, Nur Atiff Azhar, Tong Wah Lim, Zethy Hanum Mohamed Kassim, Sarah Haniza Abdul Ghani, Melati Mahmud

Journal of Dentistry Indonesia

Smile aesthetic perceptions could have different impact on orthodontic and prosthodontic treatment management and options to the patient. Objectives: To determine the laypersons’ smile aesthetic perceptions; irrespective of age and gender, of gummy smile and its treatment need and benefit on three different facial types. Methods: Smiling frontal photographs of a male and female subject were altered to simulate three facial types (brachyfacial, mesofacial and dolichofacial) with different levels of gummy smile increase from 2.0mm to 5.0mm. A total of 150 laypersons ranging from 18-45 years old were randomly approached to rate the photographs. Perceptions differences were assessed using visual …

Endodontic Management Of Mandibular First Molar With Four Roots - A Rare Case Report With Clinical Management Guidelines, Shaikh Shahbaz, Huma Iftekhar, Sharique Alam, Zehra Shavez

Journal of Dentistry Indonesia

Mandibular molar is usually two rooted with one mesial and one distal root. Additional roots are rare which requires accurate diagnosis and a methodical and scrupulous endodontic treatment. Objective: This paper aims to report the endodontic management of an unusual case of a mandibular permanent first molar with four roots (two mesial & two distal) and provide a clinical guideline to detect and manage these variant cases. Case report: A 15-year-old boy reported with a deep carious lesion in the lower left first molar (#36). The apical root contour of #36 on an intraoral periapical radiograph taken in different angulations …

Salivary Iga Depression In Drug-Influenced Gingival Enlargement Among Hypertensive Patients, Muhammad Annurdin Sabarudin, Haslina Taib, Wan Majdiah Wan Mohamad, Siti Lailatul Akmar Zainuddin, Wan Syamimee Wan Ghazali, Ahmad Azhar Misran

Journal of Dentistry Indonesia

Drug-influenced gingival enlargement (DIGE) among hypertensive patients is commonly associated with antihypertensive drugs such as calcium channel blockers (CCBs). Immune response alteration is one of the proposed mechanisms for DIGE. Immunoglobulin A (IgA) in saliva which involves in defense mechanism was shown to be affected in patients with DIGE. Objective: This study aimed to determine the association of salivary IgA level with DIGE. Methods: This cross-sectional study comprised 47 hypertensive patients who had consumed antihypertensive drugs for at least 3 months. Twenty-one (44.7%) males and 26 (55.3%) females had participated in this study. Data was analyzed using SPSS version 26.0. …

Orthodontic Treatment Of Severe Bimaxillary Dentoalveolar Protrusion With Skeletal Class Ii Malocclusion Without Using Miniscrews, Yi-Wei Huang, Chun-Liang Kuo, I-Hua Liu, Yu-Ling Tsai, Chung-Li Wang, Chun-Hsiu Yang

Taiwanese Journal of Orthodontics

Bimaxillary dentoalveolar protrusion is characterized by the proclined anterior teeth, protrusive lips, and a convex profile. A proper orthodontic treatment modality for efficient anchorage control is necessary to retract the anterior teeth and improve the facial esthetics significantly. The commonly used miniscrew could provide absolute anchorage, however, it is accompanied by some risks and complications, especially in adolescent females. This case report described a 16-year-old female with diagnosis of skeletal Class II, normal mandibular plane angle, and Angle Class I malocclusion associated with proclined upper and lower anterior teeth, excessive overjet, and a convex profile with lip incompetence. We extracted …

Surgical-Orthodontic Treatment Of Skeletal Class Ii Malocclusion With Obstructive Sleep Apnea And Multiple Missing Teeth, Ching-Yi Lee, Chung-Yi Ho, Cheng-Hui Lin, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

In the treatment of skeletal Class II retrognathic mandible, the airway should be considered for the progress and outcome of the treatment. The case report demonstrates combined orthodontic and orthognathic surgery in a 39-year-old woman with chief complaint of maxillary protrusion. The clinical examination and X-ray revealed skeletal Class II with a retrognathic mandible, high mandibular plane, vertical maxillary excess (VME), bilateral deformed condyles, and narrow posterior airway space. Moreover, the patient had several missing teeth with a posterior lingual crossbite. Polysomnography revealed obstructive sleep apnea (OSA), with a high apnea–hypopnea index (AHI) of 12.1/h. Her body mass index was …

Tripod Mandibular Advancement Surgery Used In A Class Ii Malocclusion With Receding Lower Jaw, Yu-Ting Wang, Yu-Ling Cheng, Ming-Jeaun Su, Huei-Mei Tsai, Yi-Min Liu

Taiwanese Journal of Orthodontics

This report concerns a relatively simple and reliable method of managing a case of maxillary dental malocclusion combined with a minor underdeveloped and receding mandible.

The chief complaint of the patient was crowded upper anterior teeth and receding chin. After a thorough examination, the patient was diagnosed with a relatively normal maxilla with a slightly small mandible. Impacted upper left canine and missing lower central incisors were noted.

The main treatment goal was to combine surgery and orthodontics to gain the most benefit of treatment. Tripod mandibular advancing surgery (TMAS) plus genioplasty was used as a single-jaw intervention. Orthodontic mechanotherapy, …

Angle Class Ii Division 1 Malocclusion In An Adolescent Patient Treated With Four First Premolars Extraction And Temporary Anchorage Devices, Yu-Cheng Hsu, Po-Yu Yang, Chia-Tze Kao

Taiwanese Journal of Orthodontics

This case report describes a successful orthodontic treatment in an Angle Class II division 1 malocclusion with severe space deficiency by temporary anchorage device (TAD) in a 15-year-old male patient. The skeletal analysis showed mandibular retrognathism and slightly hyperdivergent growth pattern. The treatment plan included four first premolars extractions combined with TAD application which used for anteroposterior and vertical anchorage control. The orthodontic treatment was to achieve the effect of counter-clockwise rotation of mandible for the patient who still has remaining growth. After 23 months of orthodontic treatment, Angle Class I molar relationship was achieved. The patient was satisfied with …

Open Bite: A Clinical Challenge For The Orthodontist (Part Ii), Ib Leth Nielsen

Taiwanese Journal of Orthodontics

Treatment of anterior open bite presents numerous challenges to the orthodontists. Should an open bite be treated early, or should it be delayed until most growth has been completed is just one of the many questions? Can treatment be done with conventional orthodontics or is a combination of orthodontics and orthognathic surgery indicated? Anterior open bite can develop later in life because of idiopathic condylar resorption, excess mandibular growth, and by iatrogenic causes. This article will discuss both normal and pathological developments and the possible treatment approaches. The importance of understanding the etiology of open bite and address the causes …