Orthodontics and Orthodontology Commons^™

Facial Growth: Does It Play A Role In Long-Term Stability Of Orthodontic Treatment?, Ib Leth Nielsen

Taiwanese Journal of Orthodontics

Following orthodontic treatment there is usually a period of retention to maintain the treatment result. This period can vary from a few years to even lifelong retention all depending upon the clinician, type of treatment and severity of the initial malocclusion. In most cases retention is planned for one to two years, but some clinicians routinely recommend continuous retention into adulthood. The retention planned for a patient is unfortunately often based on intuition rather than on scientific evidence. Furthermore, the retention is frequently not planned based on the initial malocclusion, the patient's facial growth pattern nor is attention paid to …

Comparison Of Thickness Between Thermoformed And Printed Orthodontic Aligners, Omar Souman

Loma Linda University Electronic Theses, Dissertations & Projects

Introduction: The fabrication of thermoformed orthodontic aligners involves processes that irreversibly alter material properties, resulting in aligners that exhibit high variation in thickness. The non-uniform thickness can lead to unpredictable forces that can adversely affect orthodontic tooth movement. With recent technological advancements enabling the printing of orthodontic aligners, it is of clinical interest to investigate their variation of thickness.

Purpose: This study utilized Micro-Computed Tomography (Micro-CT) and Geomagic Control X metrology software to compare the thickness of thermoformed and direct printed aligners.

Materials and Methods: Intraoral scans of 13 orthodontic patients were used to generate standard tessellation …

Oral Leukoplakia: Diagnosis And Management Revisited, Isaäc Van Der Waal

Journal of Dentistry Indonesia

The definition of oral leukoplakia has not much changed during the past five decades and is still a definition by exclusion of ‘known’ lesions. Therefore, a diagnosis of leukoplakia is not always a straightforward one for the clinicians and, to some extent, also for the pathologists. The traditional clinical classification in homogeneous and nonhomogeneous leukoplakia may just be simplified into leukoplakia (thin and thick/verrucous) and erythroleukoplakia. In spite of numerous reported predictive molecular and genetic parameters of malignant transformation, the presence and grade of epithelial dysplasia as assessed by histopathological examination is still the most important one. Of the various …

How To Manage Fan’S C Shape Canals Along With S Shape Morphology In Indian Population: A Case Series And Narrative Review, A Lavanya, Rajendra Kumar Tewari

Journal of Dentistry Indonesia

The C-shaped root canals offer greater negotiation, debridement, and obturation difficulty as they present with intercommunications, lateral canals, and reduced dentin thickness.

Objective: This case series elaborates on the recognition that these varying configurations is important to enhance adequate cleaning, shaping, and sealing of the root canal.

Case Reports: On clinical examination, all the teeth showed caries were nonresponsive to sensibility tests and toother diagnostic tests, suggestive of pulp necrosis with apical periodontitis. Conventional root canal treatment with different techniques and obturation systems have been used. This case series presents the successful management of various C-shaped configurations classified by Fan …

Misusing Elastics For Midline Diastema Closure - Disaster And Treatment Via A Case Report In Vietnam, Vo Nhu Truong Ngoc, Ly Van Huan, Hoang Kim Loan, Dang Trieu Hung, Ta Thanh Dong

Journal of Dentistry Indonesia

Midline diastema has been a popular aesthetic problem for children. Several treatment options are available, however, the use of elastic bands without other appliances for closing the diastema still remains a pressing issue in Vietnam, which could be done by the patient’s parents either themselves or under the dental practitioners’ suggestion.

Objective: To report a specific case about the extensive extrusion regarding upper central incisors in a pediatric patient due to misusing the elastic band, in which management was complex due to an unfavorable situation for splinting.

Case Report: Single rubber band usage for orthodontic movement in closing diastema has …

Improved Super-Elastic Ti-Ni Alloy Wire For The Treatment Of Skeletal Class Iii With Unilateral Buccally Positioned High Canine, Yi-Mien Cheng, Chih-Chieh Lin, Yu-Cheng Lo, Yuan-Hou Chen, Jian-Hong Yu

Taiwanese Journal of Orthodontics

A 20-year-old male adult came to the clinic with a chief complaint of poor dental alignment. Clinical examination had revealed Skeletal Class III with an upper right buccally positioned high canine, anterior crowding, midline deviation and both maxillary lateral incisors crossbite. Four bimaxillary premolars were extracted. Improved super-elastic Ti-Ni alloy wire (ISW, developed by Tokyo Medical and Dental University) leveling was performed to relieve the crowding and to correct the high canine and midline deviation. Intermaxillary elastics (IME) was applied for a better interdigitation. Treatment was completed within 29 months and a desirable occlusion was achieved.

Clear Aligner Treatment In An Adolescent Female With Hyperdivergent Growth Pattern Of The Mandible, Chih-Jan Chen, Yu-Ling Cheng, Yuen-Yung Tsang, Huei-Mei Tsai, Yi-Min Liu

Taiwanese Journal of Orthodontics

This study investigated the application of a clear aligner system in treatment of an adolescent Taiwanese female exhibiting a high mandibular plane angle, with a particular emphasis on the alignment of crowded upper anterior teeth. The treatment plan excluded tooth extraction and applied sequential distalization and transverse expansion across both dental arches instead. The alleviation of crowding and increased arch width was accomplished, while maintaining optimal vertical dimension control. The treatment yielded observable improvements in both oral function and aesthetic appearance

Bilateral Maxillary Canine Substitution With High Impaction In The Center Of Anterior Palate, Chien-Man Chang, Ying-Chen Chen, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

This case report described the treatment of a 16 y/o female who was referred for her bilateral maxillary impacted canines. Her chief complaint also involved lower crooked front teeth. She presented with skeletal Class I with orthodivergent facial pattern and dental Class II relationship. Clinical oral examination revealed two peg lateral incisors and two retained primary canines in the upper arch. The panoramic film showed two maxillary impacted canines near the center of palate. Before the orthodontic intervention, surgical exposure was conducted with open window technique. A transpalatal arch with 2 soldered hooks was inserted as anchorage for distal traction …

Surgical-Orthodontic Correction Of Skeletal Class Iii Anterior Open Bite With Facial Asymmetry, Hao-Hsiang Chang, Cheng-Hui Lin, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

Class III anterior open bite (AOB) is characterized by mandibular downward movement with anteroposterior discrepancy and long face deformity. This often leads to esthetic and functional problem that decrease the Quality of Life in patients. Treatment decision of AOB is always challenging whether goes for camouflage therapy or orthognathic surgery. A 26-year-old female suffered from anterior open bite and facial asymmetry. The clinical and radiographic examination revealed skeletal Class III relationship with hyperdivergent facial type, facial asymmetry with chin deviation to right, and AOB of -5 mm overbite. The pre-surgical orthodontic treatment included partial anterior retraction of upper anterior teeth …

Orthodontic Retreatment Of Class Ii Division 2 Malocclusion With Deep Bite And Gummy Smile Using Miniscrews, Hsin-Yi Lo, Hung-Jen Wang, Yu-Lian Lin

Taiwanese Journal of Orthodontics

Orthodontic treatment of Class II Division 2 malocclusion with gummy smile and deep bite is a challenge under the circumstances of lacking skeletal anchorage device. In this case report, we illustrated a miniscrew-assisted orthodontic retreatment of a 29-year-old female patient, who came to our department with a chief complaint of her unpleasant smile. The patient had previously undergone orthodontic treatment with 4-bicuspid extractions to correct her protrusive incisors. The clinical examination revealed a Class II division 2 malocclusion, 100% overbite, and a gummy smile. The philosophy of the orthodontic retreatment in this case was to correct Class II molar relationship …

Evaluation Of Accuracy Of Intraoral Scanners Versus Extra Oral Scanners In Different Dental Arch Measurements, Mohamed Walid Saleh, [email protected] , Future University In Egypt, Fouad Sharaby [email protected] , Associate Professor Of Orthodontic Department Of Orthodontics Faculty Of Dentistry Cairo University, Essam Nassef [email protected] , Professor Of Orthodontic Department Of Orthodontics Faculty Of Oral And Dental Medicine Future University In Egypt

Future Dental Journal

Background: Orthodontics has been influenced by new technologies in many areas. There is a shift toward digitization of patient’s information and data. Aim: The aim of this study was to compare the accuracy of intraoral scanner and extra oral scanners using different dental arch measurements. Materials and Methods: The sample size consisted of 44 dental stone models for patients who finished orthodontic treatment. For each subject two digital models were made, one digital model obtained from extra oral scanner and one digital model obtained from Intra oral scanner. An external examiner measured intermolar width, intercanine width, mesiodistal width of the …

Changes In Lip Length And Strain After En-Masse Retraction With Maximum Anchorage In Female Patients With Bimaxillary Protrusion, Leena Shibl, Amr El-Beialy, Yehya Mostafa, Heba Dehis

Future Dental Journal

Aim: The aim of the study is to evaluate the effect of en-masse retraction with maximum anchorage on the lip length, lip strain, and interlabial gap in adult female patients with bimaxillary protrusion. Materials and Methods: Thirteen patients underwent initial records including photographs, study casts, and cephalometric x-rays. En-masse retraction was performed using friction mechanics, with the use of temporary anchorage devices and power chains after the extraction of first premolars. The soft tissue was analyzed using lateral cephalometric radiographs before and after retraction. Results: The results showed that en-masse retraction had a significant effect on reducing lip strain, increasing …

Questionnaire Survey On Pain & Mini-Implant Failure In Class Ii Female Patients After Extraction Of Maxillary Second Molars Using Infra Zygomatic Mini Implants, Hosam Abdullah Zaza, Nagwa El Mangoury, Amr El Dakrory, Mostafa El Dawlatly

Future Dental Journal

Background: Skeletal anchorage devices have been developed for case requiring absolute anchorage during orthodontic treatment. One of these anchorage devices is the Infra-zygomatic mini-implant type. However, the pain associated with this type of appliance have not been sufficiently evaluated from the patient’s point of view. Aim: The aim of this study was to survey patients for one week after insertion of the infra-zygomatic mini-implants and 1 week following every reactivation in order to evaluate their pain and discomfort as well as the percentage of mini-screw failure. Materials and methods: 10 patients requiring infra-zygomatic mini-implants were selected. All participants completed questionnaires …

Accuracy Of Interproximal Reduction In Commonly Used Operator Positions Using An Intraoral Scanner, Behnoush Bakhtiari

Theses & Dissertations

Introduction: The aim of this study was to determine operator’s best position when doing interproximal reduction. Also, to determine if these positions are ergonomically recommended.

Materials and methods: 54 sets of upper and lower models were scanned and 3D-printed. Air-rotor stripping was performed at different provider positions. Vertical and horizontal deviations were measured, and errors were recorded.

Results: In LA, there was no statistically significant difference between vertical deviations in P7 and 11, however, they were both superior to P9. In LL, P11 leads to significantly lower vertical deviation than P7 and 9. In LR, P9 and 11 were superior …

A Prospective-Randomized Study: The Impact Of Four Different Caries Removal Method On Pain And Clinical Evaluations, Merve Aydemir, Serdar Bağlar

Journal of Dentistry Indonesia

Objective: There are many different methods for removing caries. In this study, to evaluate four caries removal methods in terms of patient comfort and to evaluate the clinical success of restorations according to modified-USPHS criteria. Methods: In 31 patients with at least 4 Class II caries in their posterior teeth, 4 teeth were randomly divided into four groups and 4 different methods (conventional method, Carisolv, Papacarie, Er-Cr:YSGG Laser) were used for caries removal. Pain formation during caries removal was determined by FACE Pain Scale questionnaire. The restorations were controlled with Modified-USPHS criteria in 3-6-12 months period. Mann-Whitney U …

Assessment Of Dna Damage Of Oral Mucosa Due To Ceramic Bracket Using Comet Assay And Mutagenicity Of Orthodontic Bonding System Using Ames Test, Riaz Adham, Norma Ab Rahman, Kannan Thirumulu Ponnuraj

Journal of Dentistry Indonesia

Objective: The objective of this study was to determine the DNA damage caused by ceramic bracket (Clear II, SIA Orthodontic Manufacturer Srl, Italy) on human buccal mucosal cells using comet assay and the mutagenicity of orthodontic bonding system (Transbond XT; 3M Unitek) by Ames test. Methods: In this study, twenty orthodontic patients were recruited from Specialist Orthodontic Clinic, Hospital Universiti Sains Malaysia. The Buccal mucosal cell sample was obtained from each patient at three time points-before (TO), after one month (T1) and after two months (T2) of ceramic bracket placement for performing comet assay. The spot test version …

A Two-Year Retrospective Evaluation Of Cone Beam Computed Tomography Indications In Pediatric, Adolescent And Adult Patients, Zeynep Betül Arslan, Esra Ceren Tuğutlu

Journal of Dentistry Indonesia

Objective: The objective was to evaluate cone-beam computed tomography (CBCT) indications and distribution in pediatric, adolescent and adult patients. Methods: A total of 1013 CBCT images were reviewed in detail from the electronic patient database. The patient’s age, gender, CBCT indications and acquisition sites, referral departments, reason for referral, incidental findings in the imaging field and the presence of artifacts in the CBCT images were all recorded. The European DIMITRA project recommendations were used to categorize CBCT indications in the children and the European Guidelines were used for adults. Results: From a total of 1013 images; 5.3% …

Treatment Of Gingival Fenestration Using Mucoperiosteal Flap With Connective Tissue Graft: A Report Of Two Cases, Swati Jaglan, Shikha Tewari

Journal of Dentistry Indonesia

Fenestration term is derived from the Latin word ‘fenestra’ means ‘window’. Gingival fenestration is not found in routine while its actual occurrence is assumed to be higher. Additionally, if these mucogingival defects persist for a longer duration it may lead to adverse outcomes like compromised esthetics, hypersensitivity, plaque and calculus deposition, and susceptibility to dental caries. Present cases of gingival fenestration were successfully treated by using full-thickness flap elevation with connective tissue graft placement. Two cases were presented with the accumulation of plaque and calculus and having gingival fenestration to the respective sites. After phase 1 therapy, full thickness flap …

Management Of Tooth Hypersensitivity Under A Cantilever Fixed Partial Denture Using A Novel Low-Level Laser Therapy Protocol: A Case Report, Mohamed Fattouh, Manal Mohammed Aljuaid, Nada Ali Abdelaleem

Journal of Dentistry Indonesia

Tooth hypersensitivity is a common clinical complaint after dental treatment.

Objective: This study presents a case report of the use of a diode laser for treating tooth hypersensitivity in a patient with a cantilever fixed partial denture abutment.

Case Report: A 23-year-old female patient presented to the Faculty of Dentistry, Umm Al-Qura University in Makkah, with the chief complaint of pain in a deeply carious maxillary right first premolar. The tooth was extracted, and a cantilever fixed partial denture was placed using the second premolar as an abutment. One year later, the patient experienced tooth hypersensitivity under the bridge. Low-level …

Class Iii Malocclusion Camouflage Treatment Using A Conventional Orthodontic Appliance In A Non-Growing Patient, Fransiska Monika, Retno Widayati

Journal of Dentistry Indonesia

The treatment of skeletal and dental Class III malocclusions is a challenge for orthodontists, and one of the treatment alternatives for a non-growing patient is orthodontic camouflage treatment. Different approaches may result in different outcomes; therefore, a proper diagnosis and treatment plan are needed to avoid undesirable effects. In this case, a 21-year-old female patient presented with a skeletal Class III malocclusion, with a normal maxilla, prognathic mandible, moderate crowding, and an acceptable facial profile. The treatment modality for orthodontic camouflage treatment was a conventional orthodontic appliance with the extraction of mandibular first premolars to resolve crowding. At the end …

Improved Super-Elastic Ti-Ni Alloy Wire For Nonsurgical Treatment Of Skeletal Class Iii Malocclusion Combined With Anterior Crowding And Anterior Crossbite Case, Po-Jui Lin, Yuan-Hou Chen, Ming-Ke Tsai, Chang-Chiang Yu, Jian-Hong Yu

Taiwanese Journal of Orthodontics

The article reported the use of improved super-elastic Ti-Ni alloy wire (ISW), which was developed by Tokyo Medical and Dental University, to correct a case of skeletal Class III malocclusion combined with anterior crowding and anterior crossbite. An 18-year-old male with a chief complaint of poor dental alignment and protruded lower incisors showed up in our clinic for treatment. Clinical examination revealed skeletal Class III facial profile. Anterior crowding and anterior crossbite could be also noted. Because the patient refused orthognathic surgery, we tried camouflage orthodontic treatment. First, we used ISW crossbite arch to eliminate the anterior interference in order …

Surgical-Orthodontic Treatment Of Class Iii Malocclusion With Anterior Open Bite, I-Ting Chiang, Cheng-Yu Wang, Yi-Jan Hsia, Chien-Cheng Chen, Yi-Horng Chen

Taiwanese Journal of Orthodontics

A 21-year-old female came with chief complaints of inability to incise food and poor esthetics. The patient presented with a concave facial profile, long face with a steep mandibular angle, incompetent lip closure, and acute nasolabial angle. Intraorally, she had negative 6 mm overjet, 3 mm open bite and dental crowding. She was diagnosed as severe skeletal Class III malocclusion and anterior open bite. The treatment plan included orthodontic treatment with orthognathic surgery and extraction of maxillary second molars, which were supra-erupted and tipped buccally. The pre-operative orthodontic alignment took 11 months. The surgical correction included maxillary Le Fort I …

Treatment Of Class Iii Malocclusion With Facial Asymmetry And Impacted Second Molar: A Case Report, Wei-Yu Chen, Chen-Jung Chang, Jen-Bang Lo, Pei-Ju Wu, Tung-Yiu Wong

Taiwanese Journal of Orthodontics

Symmetry is an important factor affecting facial attractiveness. The majority of subjects with facial asymmetry also exhibit Class III (CIII) malocclusion. However, the method used for three-dimensional analysis of facial asymmetry remains controversial. The optimal symmetry plane (OSP) method was developed to eliminate the identification errors that occur when using traditional orthodontic landmarks. Orthodontic treatment can become complicated in the presence of mandibular second molar impaction. Several parameters should be taken into consideration during the treatment planning, such as position of impacted tooth relative to anatomical structures and adjacent tooth and preexisting conditions in the impacted teeth. In this report, …

Treatment Strategy Of Mandibular Second Molar Impaction: A Literature Review, Heng-Tzu Shen, Johnson Hsin-Chung Cheng, Daniel De-Shing Chen

Taiwanese Journal of Orthodontics

Purpose: This literature review aimed to investigate the treatment consideration and strategy of mandibular second molar (MM2) comprehensively, which can be of great assistance on managing and solving such a rare disturbance. Methods: Previous studies were identified in PubMed or Embase database using the keywords “orthodontic,” “molar impaction,” and “uprighting molar.” To enrich the contents of every aspect of the topic, other several related articles were also reviewed and included. Results: Forty-six articles were included and systematically discussed in this review, which were arranged according to prevalence, etiology, diagnosis, treatment strategy, and clinical methods. The incidence of MM2 impaction is …

Transverse Malocclusions: Etiology, Development, Diagnosis And Treatment, Ib Leth Nielsen

Taiwanese Journal of Orthodontics

Malocclusions that involve the transverse dimension are very common in the orthodontic office. They can be as simple as a crossbite of the posterior teeth or as severe as a Class III malocclusion with a mandibular asymmetry. Transverse malocclusions can vary from being a simple dento-alveolar problem to a more complex challenge as represented by a skeletal asymmetry that has developed after puberty and causing temporomandibular disorder (TMD) problems. In this review we shall address the most common types of transverse malocclusions and review their etiology and development. The most typical etiology of transverse anomalies will be discussed, and we …

10-Minute Ebd: Frenectomy Or No Frenectomy To Close Diastema For Children?, Polina Fubareva Dmd, Chelsea Schultz Dmd, Taylar Rowe Dds

The Journal of the Michigan Dental Association

In this "10-Minute EBD" column, the authors explore a clinical question utilizing the evidence-based dentistry (EBD) process within orthodontic practice. The study aims to address whether frenectomy or no frenectomy is more effective in achieving successful closure of maxillary diastema in children undergoing orthodontic treatment with a high maxillary anterior labial frenum attachment. Employing a PICO question framework, the authors examined relevant literature through PubMed and Google Scholar, identifying five pertinent articles. The compiled evidence, which included systematic reviews, randomized control trials, and a retrospective cohort study published between 2013 and 2022, suggests that frenectomy, combined with orthodontic treatment, is …

Did The Pandemic Change Future Treatment Choices Amongst Orthodontists?, Ryanna Robinson, John Atere

Annual Research Symposium

No abstract provided.

Analysis Of Smile Characteristics Of Adult Female Subjects With Skeletal Class Ii Division 2 Malocclusion, Ahmed Ibrahim Nabawi, Fouad A. El Sharaby

Future Dental Journal

Aim: The objective of this study was to evaluate the smile characteristics of adult females with Angle Class II division 2 malocclusion compared to Angle Class I malocclusion. Materials and Methods: Two frontal photographs were taken for 30 orthodontically untreated female adult subjects with age range (18-30) years, at rest and posed smile from a fixed (1.5m) distance between the camera and the subjects. The 30 subjects were divided into 2 groups, 15 for Class II div 2 subjects and 15 for Class I subjects. The camera was focused only on the mouth, showing from the nose to the chin. …

Skeletal And Dental Treatment Effects In Class Ii Subdivision Malocclusions: A Cbct Study, Jaime Kika Masunaga

Orthodontics and Endodontics Theses

Objectives: The purpose of this study is to determine the skeletal and dental contributions in the orthodontic correction of Class II subdivision malocclusions using cone-beam computed tomography (CBCT) analysis. Methods: 50 Patients that completed non-surgical orthodontic treatment at the University of the Pacific Graduate Orthodontic Clinic with initial Class II subdivision malocclusions were identified. Patients were classified as growing or non-growing, and further categorized if a skeletal asymmetry was present. Final records were assessed with 3-dimensional CBCT. Wilcoxon signed-rank tests were used to compare linear skeletal, angular, and dental measurement differences between pre- and post-treatment CBCTs on Class I and …

Characteristics Of Gingival Crevicular Fluid Flow During Orthodontic Treatment With Invisalign, Nina Stevens

Orthodontics and Endodontics Theses

OBJECTIVES. Studies on quantitative relationships between magnitude of force applied to a tooth root and formation of gingival crevicular fluid (GCF) biomarkers (volume, concentrations of cytokines, enzymes, etc.) in clinical settings are lacking. This study aims to answer the question: What can analysis of GCF flow dynamic characteristics inform us about orthodontic tooth movement in a patient treated by Invisalign? METHODS. In three participants, two GCF samples were collected from five maxillary and five mandibular teeth during start, middle and end of Invisalign treatment. Plaque index and pocket depths were determined. Periopaper strips (Oraflow) were used for collection of GCF, …