Orthodontics and Orthodontology Commons^™

Comparison Of External Root Resorption In Orthodontic Treatment Between Self-Ligating And Conventional Bracket Systems, Nuriah Bohari, Noor Airin Koah, Rohana Ahmad

Journal of Dentistry Indonesia

The relationship between orthodontic bracket systems and external root resorption has remained debatable. Objective: This study compared the magnitude and pattern of the external root resorption of maxillary incisors as induced by self-ligating and conventional bracket systems via cone beam computed tomography and medical imaging programs. Methods: Eight participants were recruited for each bracket system. Their maxillary incisors were scanned at the beginning (T0) and 18 months into treatment (T1). Three-dimensional models of the four maxillary incisors at T0 and T1 were reconstructed using the Mimics program. The difference in root length between T0 and T1 models represented external root …

Orthodontic Camouflage Treatment Of A High-Angle Severe Skeletal Class Ii Discrepancy, Deryana Marshadhianti, Miesje Karmiati Purwanegara

Journal of Dentistry Indonesia

Proper orthodontic treatment in adult patients with severe skeletal Class II discrepancy can be challenging. Recently, miniscrew implants have been used as a strategy to treat skeletal Class II patients. Objective: This report illustrates a skeletal Class II malocclusion management combining straight wire technique and miniscrew implant anchorage. Case report: The patient was a 21-years- old Indonesian female with Class II skeletal discrepancy, a retrognathic mandible, a high mandibular plane angle, and a mouth breathing habit due to a history of allergic rhinitis. Anchorage control is important in the sagittal and vertical directions. Miniscrew implants were placed in the …

Antimicrobial Efficacy Of Myrmecodia Pendens Extract And Fraction Combination Against Enterococcus Faecalis Atcc 29212, Faisal Kuswandani, Mieke H. Satari, Ani M. Maskoen

Journal of Dentistry Indonesia

Enterococcus faecalis can withstand harsh environmental conditions in the root canal and cause a secondary infection. Myrmecodia pendens is an herbal medicine rich in polyphenol compounds that have antibacterial, antioxidant, and anticancer properties. Objectives: To analyze the effects of M. pendens fraction combination on the sensitivity of E. faecalis. Methods: The minimum inhibitory concentration (MIC) was determined using a serial microdilution method, and the minimum bactericidal concentration (MBC) was determined by adding the test sample to sterile Mueler Hinton agar medium. Results: The MIC of combination 1 (hexane-ethyl acetate, HE) was 0.049 mg/mL, whereas those of combinations 2 (hexane-water, HA) …

Persistent Endodontics Pathogens Biofilm Inhibited By Lactobacillus Reuteri Indonesian Strain, Armelia Sari Widyarman, Njoo Kiky Elysia Lazaroni

Journal of Dentistry Indonesia

Lactobacillus reuteri is known as probiotics that effective to improve oral health. Objective: To analyze the effect of L. reuteri Indonesian strain, towards Enterococcus faecalis and Candida albicans biofilm growth. Methods: This study was conducted using biofilm assay. Each E. faecalis ATCC-29212 and C. albicans ATCC-10231 were cultured in Brain Heart Infusion Broth, distributed into 96 well-microplate and incubated for 24h, 37°C, anaerobic condition for E. faecalis and aerobic condition for C. albicans. L. reuteri LC382415 (Indonesian strain) was cultured in deMann Rogosa Shar pe Broth and diluted into different concentrations (10⁸,10⁶, and 10^{4 …}

Orthodontically Induced External Root Resorption In Extraction Versus Non-Extraction Treatment Modalities – A Retrospective Cone-Beam Computed Tomography (Cbct) Study, Jaykishan Patel

Theses & Dissertations

Purpose of this study was to evaluate orthodontically induced external apical root resorption using cone beam computed tomography in patients receiving orthodontic treatment with or without extractions. Records of 188 consecutively treated patients who received orthodontic treatment with or without extractions were evaluated. Pre-and post-treatment root lengths of maxillary incisors, volumes of maxillary central incisors, and apex displacement of either right or left maxillary central incisors were measured using Invivo 5.4 or ITK-SNAP 3.8.0 software. After adjusting for initial length, treatment duration, tooth, sex, race, bracket type, and malocclusion, maxillary incisor reduction of root length in extraction group was 0.37 …

The Effectiveness Of Resin-Modified Glass Ionomer Varnish In Preventing White Spot Lesions During Fixed Appliance Orthodontic Therapy: An In Vitro Study, Bradley Herman

Theses & Dissertations

The purpose of this investigation was to evaluate the efficacy of a glass ionomer varnish in preventing demineralization of enamel adjacent to and some distance away from an orthodontic bracket. Forty extracted human molars were divided into four different treatment groups (varnish in distilled water, varnish in acetic acid, enamel in acetic acid, and enamel in distilled water). Two 3 x 3 mm graphite windows were drawn on the tooth, one adjacent to the bracket and one 3 mm away from the first window, indicating the scanning area. Varnish was applied to the teeth in the varnish groups and all …

Facial Tissue Changes With Microimplant Assisted Rapid Palatal Expanders, Kevin Shimizu

Orthodontics and Endodontics Theses

Introduction: Skeletal expansion has been a treatment modality in orthodontics and orthopedics to correct skeletal transverse discrepancies with maxillary constriction. The utilization of microimplants in conjunction with these palatal expanders offers a higher degree of pure skeletal expansion and minimizes the dental side effects. The purpose of this study is to evaluate the changes of the hard and soft tissues of the face after skeletal expansion for orthodontics. Methods: 36 patients who had received successful expansion with a microimplant assisted rapid palatal expander were compared to their pre-expansion records. All patients received CBCTs from which a 3-D analysis configuration was …

Measurements Of The Pharyngeal Airway Using Whole Head 3t Mri And Cbct, Victoria Geren

Loma Linda University Electronic Theses, Dissertations & Projects

Objective: This study compared pharyngeal airway measurements (volume, linear, area) made using whole head Cone-Beam Computed Tomography (CBCT) and 3T Magnetic Resonance Imaging (MRI) methods.

Methods: Eleven subjects (mean age 15y11m) received whole head CBCT (NewTom5G, AFP Imaging, USA) and 3T MRI (Siemens Medical Solutions, DE). Each subject received both scans within a one-month period of time. CBCT images were made with an 18x16 inch field of view, exposure time of 5.4s, and resolution of 0.3x0.3x0.3mm. 3T MR images were captured as contiguous sagittal images of the whole head with a T1- weighted 3D imaging sequence (Magnetization Prepared …

Clinical Effects Of Oral Hygiene Instruction Via Texting In Orthodontic Patients, Jessica Liu

Loma Linda University Electronic Theses, Dissertations & Projects

Purpose: This randomized controlled study quantitatively investigated whether providing oral hygiene instruction (OHI), through texting images and videos, affected oral hygiene status in orthodontic patients.

Materials and Methods: Sixty patients between 13-21 years of age, with visible plaque and used a smart phone, were recruited from the Graduate Orthodontic Clinic at Loma Linda University. Once recruited (T1), an initial survey was completed, MBI and OPI were recorded, and OHI was given. Subjects were randomly distributed into either a control or experimental group. The experimental group received OHI texts weekly, whereas the control group did not. After 3 months …

Comparison Of Maxillary Sinus Dimensions And Volumes On Cbct And 3t Mr Images, Cara Hodgson

Loma Linda University Electronic Theses, Dissertations & Projects

Objective: This study compared the height, width, length, and volume of the maxillary sinus in Magnetic Resonance Imaging (MRI) and Cone-Beam Computed Tomography (CBCT).

Methods: Eleven human subjects participated in the study (mean age of 14y7m). One CBCT scan and one MRI scan were performed on each patient. CBCT images were captured with an 18 x16 inch field of view that covered the whole head. Contiguous sagittal MR images of the whole head were produced using a 3.0T imaging system with a T1-weighted 3D imaging sequence and isotropic resolution of 1.0 x1.0 x1.0 mm. Images were imported as …

Accuracy Of Surface Area And Volume Measurements Of Teeth Determined From Cbct, Joseph Hourany

Loma Linda University Electronic Theses, Dissertations & Projects

Objective: This study compared surface area and volume measurements made from 3D scans of physical teeth and segmented teeth taken from Cone-Beam Computed Tomography (CBCT) scans of a cadaver. Methods: A cadaver specimen was imaged by CBCT and all the teeth were subsequently extracted and cleaned of any tissue. Of all the extracted teeth, sixteen single-rooted teeth were included in this study. The extracted teeth were scanned with a 3M True Definition 3rd Generation intraoral scanner (3M, ESPE) to generate a stereolithography (STL) file to serve as the control for this study and their surface area and volume measurements as …

Ratio Of Rme Appliance Expansion To Increase In Arch Perimeter Using Cbct Imaging, Evan Agnetta

Loma Linda University Electronic Theses, Dissertations & Projects

Objective: This study measured CBCT images to determine if a consistent ratio exists between the quantifiable number of millimeters a cemented rapid palatal expansion appliance is opened and the subsequent increase in the arch perimeter obtained due to lateral expansion of the arch.

Methods: The following measurements: arch perimeter, arch width at first molars, first bicuspids, appliance length, as well as arch depth; were taken from CBCT images of patients who had completed RME therapy. These were obtained both before and after maxillary palatal expansion therapy using a fixed rapid palatal expander. Correlations were calculated for each of …

Microleakage - The Main Culprit In Bracket Bond Failure?, Ioana Roxana Bordea, Adina Sîrbu, Ondine Lucaciu, Aranka Ilea, Radu Septimiu Câmpian, Doina Adina Todea, Teodora Gabriela Alexescu, Maria Aluaș, Corina Budin, Andreea Simona Pop

Journal of Mind and Medical Sciences

Microleakage is the most common cause of bracket debonding. Moreover, different thermal expansion coefficients between the enamel, the adhesive, and the bracket bases will cause repeated expansion and contraction, adding more stress to the bonding strength. Debonding represents the failure of the adhesion between the brackets and the tooth enamel. The debonding of brackets from the enamel surface is the result of several factors, such as acid-etching and drying, adhesive application, and the time and type of photo activation. The under polymerization process of composite photo activation may lead to early bracket debonding. Objective. The aim of this research …

Early Class Iii Treatment Decision-Making, Peter Ngan, David Musich

Faculty & Staff Scholarship

Clinicians make decisions for their patients everyday. Ryan Hamilton, in his course guidebook, How You Decide: The Science of Human Decision Making, summarized the current research on the 4 R's of decision-making that matter: reference points, reasons, resources, and replacement. The authors will apply this principle in the decision- making necessary for the growing Class III patients. First, the decision on whether to treat or not to treat Class III patients in the mixed dentition rely on a thorough diagnosis and objectives for early treatment. For example, elimination of a functional shift of the mandible may be a good …

Combined Multi-Segmental Surgical-Orthodontic Treatment In Skeletal Class Iii With Facial Asymmetry And Gummy Smile: Two-Year Stability, Rouh-Hwai Wang, Hui-Ling Chen

Taiwanese Journal of Orthodontics

This is a case of skeletal class III malocclusion with facial asymmetry, gummy smile, and maxillary canting, treated with bimaxillary surgery and orthodontic treatment. The two-jaw surgery was performed including a 3-pieces LeFort I segmental osteotomy, anterior segment impaction with clockwise rotation, and bilateral sagittal split osteotomies with genioplasty. Through the 2-year-4-month treatment procedure, the skeletal and occlusal relationship turned to be normal with esthetically pleasing smile and profile. Furthermore, in the two-year follow-up, we found the treatment results were quite stable no matter in skeletal or dental aspects.

The Effects Of Low Intensity Light Emitted Diode On Human Periodontal Ligament Cell And Mouse Cementoblast Cell Line, Yu-Ting Wu, Yun-Ting Huang, Chun-Yu Chen, Chien-Wei Chao, Chia Tze Kao

Taiwanese Journal of Orthodontics

Objectives: The prevention of external root resorption caused by orthodontic tooth movement was endeavored by many researches. The photobiomodulation with low level dose light emitted diode (LED) is reported. The purpose of this study was to investigate the LED effects on the OCCM-30 and PDL cells proliferation. Materials and Methods: The cementoblast cell line (OCCM-30) and periodontal ligament (PDL) cells were cultured in the FX-5000 Compression System with the 0.255 kPA compression model for one hour; the experimental groups were treated with 860 nm low LED for 20 and 60 minutes. The control group did not receive the LED treatment. …

Diagnosis And Management Of Impacted Maxillary Canines, Yu-Cheng Hsu, Chia-Tze Kao, Chih-Chen Chou, Wen-Ken Tai, Po-Yu Yang

Taiwanese Journal of Orthodontics

Maxillary canines play an important role in facial esthetics, since the canine eminence can support the alar and the upper lip. Impacted maxillary canines is a common problem which requires multidisciplinary diagnosis and treatment in dental clinic. The aim of this review is to integrate the studies that include clinical diagnosis and guidelines for management of canine impaction.

Accuracy Of Different Sequencing In Bimaxillary Orthognathic Surgery: A Systematic Review And Meta-Analysis, Thatchawee Borikanphanitphaisan, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

Introduction: Compared to the classic maxilla-first sequence in bimaxillary orthognathic surgery, inverted mandible-sequence has been encouraged for potentially higher accuracy. However, evidence regarding this topic is lacking. Methods: A systematic review of the literature on different sequencing of bimaxillary surgery was conducted, gathering from following databases: Cochrane, Pubmed, Scopus, Medline (Ovid), Web of Science, ScienceDirect. Articles mentioning “sequencing”, “mandible-first”, “orthognathic surgery” of at least case-report level of evidence were included without restriction. Relevant articles were included for quality assessment and extracted data for indications of mandible-first sequence from all studies. Meta-analysis of surgical accuracy at upper central incisors in horizontal …

Use The Lip Bumper Appliance To Control The Lower Lip Biting Habit, Chun-Yu Chen, Chia-Tze Kao, Yu-Tin Wu, Chih-Chen Chou, Jui-Hsien Yang

Taiwanese Journal of Orthodontics

This is a 9 years old boy in mixed dentition stage, with Angle Class I malocclusion, anterior teeth crowding and proclined upper incisors. He was diagnosed with lower lip biting habit. The treatment plan was delivered with two stages treatment, stage 1 was to correct the lip biting habit by using the lip bumper. After four-month observation and lip training, the habit was corrected and the irregularity of lower dentition was decreased. Continued with stage 2 treatment, patient had upper and lower 2x4 fixed appliances to align and level the anterior teeth. The result showed the previous proclined upper incisors …

Orthodontic Correction Of Bimaxillary Protrusion With Mini-Screws In Class Ii Hyperdivergent Patient, Shih-Ying Lin, Kai-Wen Yu, Tai-Ting Lai, Chung-Ji Liu, Li-Fang Hsu

Taiwanese Journal of Orthodontics

To achieve a harmonious profile with pleasant smile arc in Class II hyperdivergent adult cases has been a clinical challenge. Adequate retraction and intrusion of maxillary dentition as well as vertical control are the key factors to improve the smiling appearance and the facial profile. A 19-year-old female initially presented with lip protrusion, convex profile, retrusive chin, and a Class II malocclusion. The cephalometric analysis showed a Class II skeletal pattern (ANB = 9°) with high mandibular plane angle (SN-MP = 38°). The treatment plan included extraction of four first premolars for anterior teeth retraction as well as installation of …

A Comparison Of Two Tad Techniques (Miniscrews Versus Miniplates) For Treating Class Iii Malocclusion And The Associated Skeletal And Dental Effects, James Chen, Jesus I. Patino, Jenny Zwei-Chieng Chang, Chung-Chenjane Jane Yao, Ib Leth Nielsen

Taiwanese Journal of Orthodontics

The aim of this study was to compare two different techniques for distalizing the mandibular dentition in patients with Class III malocclusion using either miniscrews or miniplates. We evaluated the skeletal and dento-alveolar changes associated with each method. The study also aimed at identifying cephalometric characteristics in the subjects associated with the most predictable, successful outcome of treatment. Patients and Methods: Our sample consisted of 20 adult subjects (10 females and 10 males) that met the inclusion criteria. We examined pre and post treatment headfilms and analyzed the dental and skeletal changes using a computer program that provided the data …

Unusual Skeletal Growth Of An Adult Patient With Acromegaly: A 12 Year Follow-Up After Orthognathic Surgery, Szu-Ching Lee, Shou-Hsin Kuang, Yu-Shu Yen, Shen-Chieh Lina, Tzu-Ying Wu

Taiwanese Journal of Orthodontics

Acromegaly is an uncommon endocrinological disorder, which is rarely seen in patients presenting for orthodontic treatment. Herein, we report a patient who underwent orthognathic surgery and was diagnosed with acromegaly during the retention phase. During disease progression and treatment, gradual changes in the mandible and facial soft tissue were detected. General information and management of acromegaly are reviewed, and the role of orthodontists in the treatment of patients with acromegaly is discussed.

Management Of A Patient With Euryprosopic Face And Upper Central Diastema, Chung-Teng Chang, Yi-Min Liu, Yuen-Yung Tsang, Huei-Mei Tsai

Taiwanese Journal of Orthodontics

An adult female has upper central diastema complicated with a complete deep bite and spacing in lower dentition. The broad face and ovoid shaped dental arch form require special attention as an intrinsic transverse dimensional skeletal malocclusion. The treatment modality therefore should be totally different from other deep bite cases with crowding or tapered dental arch. The space retention after active treatment is of prime important. Root divergence of upper incisors and bodily protraction movement of lower posterior teeth were the main concerns during treatment. Fixed lingual retainer and long term follow up are essential for stable outcome.

Validating The 3d And 2d Mandibular Plane To The Frankfort Plane For Craniofacial Measurement, Jason Jyun-Chen Kuo, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

Purpose: This study evaluated whether the three-dimensional (3D) plane-to-plane mandibular plane angle measurement method could be applied in clinical analysis in a manner similar to the application of conventional two-dimensional (2D) cephalometric measurement, regardless of whether patients had symmetrical planes. Patients and methods: This retrospective study selected 30 patients who had undergone both lateral cephalometric radiography and cone beam computed tomography (CBCT). The 2D measurement was manually traced from the lateral cephalometric radiographs for the Frankfort horizontal plane line and mandibular plane line (2D FMA). The 3D reconstructions for each patient in the CBCT were evaluated using 3D software and …

Class Ii Deep Bite Malocclusion Corrected By Two-Stage Approach, Meng-Yun Tsai, Wei-Ting Tseng, Li-Fang Hsu, Kelvin Wen-Chung Chang, Jenny Zwei-Chieng Chang, Eddie Hsiang-Hua Lai

Taiwanese Journal of Orthodontics

In Class II deep-bite malocclusions with growth potential, we could combine orthodontic treatment with orthopedic methods to achieve stable occlusion. The case was a 12-year-old male presented with Class II malocclusion, deep-bite, and low mandibular plane angle. In the stage I treatment, headgear was used to restrict the growth of maxilla. Bilateral Class III molar relationship was gained. After re-evaluation, stage II treatment was started from full mouth banding and bonding, with emphasis on leveling lower curve of Spee and intruding lower anterior teeth by placing reverse curve of Spee in the archwire and intrusive arch to solve the deep …

Long-Term Observation Of Orthodontic Management And Facial Growth On A Patient With Familial Cleidocranial Dysplasia, Chung-Yi Ho, Ellen Wen-Ching Ko, Cheng-Hui Lin

Taiwanese Journal of Orthodontics

The orthodontic management of patients with cleidocranial dysplasia (CCD) is challenging, which takes a long treatment duration and observation to follow the progress. The completion of treatment is usually not finished until growth completion. This case describes the long-term stage treatment of a 22-year-old female presented with familial CCD. The first stage orthodontic treatment was separated into two phases including surgical exposure of the anterior and posterior teeth, respectively. Extraction of the delayed exfoliated deciduous incisors and supernumerary teeth to clear the eruption path of the submerged permanent anterior teeth was started at her age of 8. The impacted anterior …

Correction Of Skeletal Class Iii Malocclusion With Four Missing Premolars By Surgery-First Approach, Yi-Bo Huang, Chia-Yi Pan, Yu-Ling Cheng, Shih-Wei Pan

Taiwanese Journal of Orthodontics

A 21-year-old female with severe concave profile and prominent chin came for surgical-orthodontic consultation. The patient had missing of four premolars which became intricate with extremely lingual inclined incisors and over-developed mandible. The surgery first approach (SFA) was adopted to correct the skeletal factors at the early stage. The pre-adjusted orthodontic bracket system was applied to normalize the torque of the teeth afterward. The capacities of anterior root-torquing auxiliary wire (ART) and multiple-loop edgewise archwire (MEAW) will be discussed, accordingly. The progress records showed remarkable improvement of profile and occlusion. The change of upper incisor show was also discussed. The …

Impact On The Pharyngeal Airway Space After Maxillomandibular Advancement Procedure For Obstructive Sleep Apnea Patients, Ghaddy Alsaty

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: Obstructive sleep apnea (OSA) is a sleep-related breathing disorder, characterized by disrupted snoring and repetitive upper airway obstructions. Continuous positive airway pressure (CPAP) is considered the therapeutic mainstay for OSA patients. However, CPAP therapy has compliance limitations. An alternative treatment options is maxillomandibular advancement (MMA) surgical procedure. Genial tubercle advancement (GTA) is often performed concomitant with MMA for esthetic purposes. Cone-beam computed tomography (CBCT) provides the ability to visualize the upper airway and perform three-dimensional (3D) reconstructions. The purpose of this study is to evaluate the impact of MMA procedure with or without GTA on oropharyngeal …

Effect Of Shear Bond Strength With Novel Apc™ Flash-Free Brackets And Different Bonding Protocol: An In Vitro Study, Carl Bernstein

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: In today’s time, there is an increasingly crowded field of competition vying over a small subset of the population. Now, more than ever it is imperative to compete with efficiency and esthetics. Each step for orthodontic bonding procedures increases the chance for error to occur. However, orthodontic bracket, etchant, sealant, and adhesive material has the ability to improve bond strength and final outcome for the patient and provider. The aim of this study was to determine effective bonding protocols for Advanced Clarity APC™ Flash-Free Brackets and to determine if adhesive remains on enamel or orthodontic bracket after …

Type Of Tooth Movement During En Masse Retraction Of The Maxillary Anterior Teeth Using Labial Versus Lingual Biocreative Therapy In Adults: A Randomized Clinical Trial, Islam Tarek, Mayse Sadek, Noha Sabet

Dentistry

No abstract provided.