Orthodontics and Orthodontology Commons^™

Antibacterial And Antibiofilm Efficacy Of Pineapple Hump (Ananas Comosus) On Porphyromonas Gingivalis In Vitro, Abdul Gani Soulissa, Billy Lombardo, Armelia Sari Widyarman

Journal of Dentistry Indonesia

Background: Periodontal disease is one of the most prevalent oral health problems in Indonesia that affects supporting tissues of the teeth. Porphyromonas gingivalis plays an important role in the pathogenesis of periodontal disease. Alternative therapy with natural plant extracts, including pineapple (Ananas comosus) hump extract may inhibit the growth of bacteria that cause periodontal disease. Objective: To determine the effect of pineapple hump extract on bacterial growth and adhesion of Porphyromonas gingivalis biofilms. Method: The bacterial inhibition test was performed by the agar well diffusion method, and biofilm density measurements were made using the biofilm assay method. Results: Pineapple hump …

The Effect Of Parabiotic Reuterin On The Expression Of Genes Involved In Candida Albicans Biofilm Formation: An Ex Vivo Study, Anastasya Muna Riad, Armelia Sari Widyarman

Journal of Dentistry Indonesia

Candida albicans has a number of properties, including resistance to various antimicrobial agents, which allow it to survive in the root canals. Lactobacillus reuteri plays a role in maintaining oral health through interactions with the oral microbiome. L. reuteri has potential as a preventive and therapeutic agent against inflammatory diseases. Objective: The aim of this study was to investigate the effect of irrigation with a reuterin-containing solution on BCR1, ACE2, EFG1, and TEC1 gene expression in C. albicans root canal biofilms. Methods: L. reuteri was cultured in MRS broth and incubated anaerobically for 24 hours at 37°C. C. albicans was …

Effects Of Different Finishing Procedures On Surface Roughness Of Hybrid Cad/Cam Materials, Ender Akan, Ozlem Colgecen, Ibrahim Talha Meşe, Bora Bağiş

Journal of Dentistry Indonesia

Hybrid ceramics combine the beneficial properties of resin with the advantage of glass ceramics. However, there are limited study about on roughness properties of hybrid materials. Objective: To investigate of the effects of surface finishing methods on roughness of dental restorations made from hybrid CAD/CAM blocks. Methods: A total of 60 samples were produced (n=20) for three main material groups, two different hybrid ceramic (LAVA Ultimate and VITA Enamic) and a conventional glass ceramic (IPS e.max CAD). Each material group was divided into two subgroups (n=10). Ten samples were polished and 10 were glazed according to related manufacturer instructions. Surface …

The Effect Of Orthodontic Treatment With Extraction On The Upper Airway Dimensions And Three-Dimensional Morphology: A Retrospective Study Using Cone-Beam Computed Tomography Technique, Ehsan Mostaghni

Theses & Dissertations

The purpose of this study was to evaluate the effect of orthodontic treatment with and without extractions of teeth on the upper airway dimension and morphology. Records of 40 consecutively treated patients who received orthodontic treatment with or without dental extractions were evaluated. Pre-and post-treatment volumes, minimum cross-sectional areas, and linear dimensions of oropharyngeal airways were quantified using InVivo Dental 6.0 (Anatomage, San Jose, CA). Additionally, pre and post CBCT images of the upper airways were superimposed on each other using voxel-based registration and fixed coordinate system using 3D Slicer 4.1.1 (www.Slicer.org) and ITK-SNAP (http://www.itksnap.org). While the …

Characterization Of Aerosols Produced By Common Orthodontic Procedures, Anna R. Schoettger

Theses & Dissertations

Introduction: Aerosols can harbor active viruses, including SARS-CoV-2, making it vital that clinical protocols implemented in the orthodontic office be based on which procedures produce aerosols. Research shows that various procedures in the field of orthodontics generate aerosols, however, there is a lack of consensus as to which procedures should be deemed aerosol-generating procedures (AGPs). The current study aimed to better understand aerosol production of various orthodontic procedures. Methods: Orthodontic procedures were performed in a closed-room dental operatory on acrylic teeth mounted onto a dental manikin. Procedures performed included: debonding, bonding, and repositioning of one bracket. Variations introduced included: high-speed …

Alignment Of Cervical Vertebrae And Reliability Of Cephalometric Measurements, Ece Agirgol

Theses & Dissertations

Cervical vertebrae are in close relationship with dentofacial structures due to their anatomical position. In previous studies, the inclination of cervical vertebrae was measured by mostly Nasion-Sella line as the reference plane to evaluate the relationship with dentofacial structures.

The aim of this study is to observe the correlation between cervical vertebrae inclination and lateral cephalometric measurements. 124 lateral cephalograms taken in Natural Head Position of subjects over 18 years of age were traced with Dolphin Imaging Software 11.95 Premium. Cervical vertebrae inclination was measured by using the lines passing from landmarks on second, third and forth cervical vertebrae. Correlation …

A Comparison Of Traditional Orthodontic Polishing Systems With Composite Polishing Systems Following Orthodontic Debonding, Elizabeth A. Melvin, Qingzhao Yu, Xiaoming Xu, Camille G. Laird, Paul C. Armbruster, Richard W. Ballard

School of Public Health Faculty Publications

Introduction: At the completion of treatment, the orthodontic practitioner's goal is to effectively remove all traces of adhesive and return enamel to its initial state. With the advent of new polishing systems being released each year, there may be one product that is superior to others. Aim: The purpose of this study is to determine the efficacy of new polishing systems (in the last 5–10 years) used in general dentistry on enamel surface roughness following debond utilizing profilometery and scanning electron microscopy and compare them to established orthodontic polishing systems results. Methods: Fifty-two mandibular incisors were randomly assigned to one …

Noninvasive Orthodontic Treatment For Class Ii Division 2 Adult Patient With 100% Deep Bite By Continuous Wire Mechanism, Yu-Hui Huang, Chun-Liang Kuo, I-Hua Liu, Chun-Hsiu Yang, Chung-Li Wang

Taiwanese Journal of Orthodontics

A characteristic of Class II Division 2 malocclusion is severe deep overbite and lingual inclination of the incisors. Deep overbite can be corrected by intrusion of anterior teeth, extrusion of posterior teeth, or a combination of both. Intrusion of the incisors should be the preferred treatment in nongrowing patients with anterior deep bites.

The patient is a 21-year-old female who had a skeletal Class II, hypodivergent facial pattern, Class II division 2 malocclusion, crowding dentition and traumatic 100% deep overbite. We extracted the two upper first premolars to relieve crowding, and the mandibular crowding was resolved by aligning the lower …

Treatment Of A Class Ii Hyperdivergent Case With Progressive Condylar Resorption, In-Ru Lin, Meng-Yen Chen, Tung-Yiu Wong, Chen-Jung Chang

Taiwanese Journal of Orthodontics

Condylar resorption can be challenging to orthodontist when encountered during treatment. The clinical characteristics and cephalometric findings of a patient who experienced postoperative skeletal relapse caused by progressive condylar resorption (CR) are presented in this case report. The predisposing factors and treatment protocols of condylar resorption are also discussed. A 17-year-old female patient came to our hospital with chief complaint of no contact of anterior teeth. Cephalometric analysis shows that she is a patient with skeletal Class II hyper-divergent pattern caused by mandibular retrognathism. Flattened left condylar head was found on panoramic film suggesting possible condylar erosion in the past. …

Asymmetric Orthodontic Space Closure Of Unilateral Congenitally Missing Second Premolars, Weerayuth Vejwarakul, Yu-Chih Wang, Yuh-Jia Hsieh

Taiwanese Journal of Orthodontics

This case report presents successful orthodontic management of unilateral retained deciduous second molars and congenitally missing second premolars using an additional anchorage in conjunction with the segmented arch approach. A 21-year-old female patient presented as skeletal Class I malocclusion, mild crowding, straight facial profile, and orthodivergent facial pattern. The treatment plan was established to extract deciduous teeth and close the extraction space by molar protraction. A Nance appliance and lingual holding arch were used as an additional anchorage to maintain the facial profile and dental midline, with pure molar protraction performed using a segmented arch and sliding mechanics. After 1 …

Orthodontic Correction Of Insufficient Posterior Overjet With Microimplant-Assisted Rapid Palatal Expansion, Po-Yi Chen, Tai-Ting Lai, Kai-Wen Yu, Huey-Yuan Wang, Shih-Ying Lin

Taiwanese Journal of Orthodontics

Transverse maxillary deficiency is often characterized by insufficient posterior overjet or posterior cross bite and anterior crowding. However, arch expansion in adult patients has been considered to be problematic owing to its possible periodontal side effects, such as gingival recession and bone dehiscence. On the other hand, nonsurgical maxillary expansion of the palatal bone in young adults has been demonstrated to correct transverse maxillary deficiency. This report describes the case of an 18-year-old patient with mild transverse maxillary deficiency accompanied by crowding who underwent microimplant-assisted rapid palatal expansion (MARPE). Using microimplant-assisted rapid palatal expansion allowed relief of crowding and correction …

Comparing Outcomes And Stability After Single- And Two-Piece Lefort I Osteotomies In Patients With Cleft Lip And Palate, Chanin Jittithaworn, Chun-Shin Chang, Chiung Shing Huang, Cheng-Hui Lin, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

Purpose: LeFort I osteotomy is used to correct and improve the maxillary hypoplasia in secondary cleft deformities. However, surgical complex and challenge would be the risk factor of postsurgical instability. This study compared surgical and postsurgical changes in maxillary and mandibular movements and stability in patients with cleft lip and palate (CLP) who underwent single- or two-piece LeFort I osteotomies.

Materials and Methods: Forty-five patients with CLP were included, of whom 30 and 15 received single- and two-piece LeFort I osteotomies, respectively. Cone-beam computed tomography was administered at three time points (T0: presurgery; T1: <1-month postsurgery; and T2: ≥1-year postsurgery) to evaluate surgical (T1–T0) and postsurgical (T2–T1) changes in maxillary and mandibular movement and stability. The overall movement, arch width, and relapse rate were measured and compared between the groups. Potential factors influencing skeletal stability were surgical change, segmental maxilla, cleft types, age, sex, and prior alveolar bone graft placement were analyzed.

Results: There revealed a significant difference …

Is The Anb Norm In Tao Board Examination Appropriate? Meta-Analysis Of Taiwanese Cephalometric Norms, Ya-Lan Chan, Johnson Hsin-Chung Cheng, Pei-Hsuan Chen, Daniel De-Shing Chen

Taiwanese Journal of Orthodontics

Purpose: According to clinical experience, the ANB angle (A point, nasion, B point) norm value of Taiwan Association of Orthodontists (TAO) board examination seems to be larger than the Taiwanese population. Therefore, this study aimed to integrate studies of Taiwanese cephalometric norms by a meta-analysis.

Patients and Methods: Studies were searched from electronic database of PubMed, National Digital Library of Theses and Dissertations in Taiwan, and physical libraries. Ten measurement values were collected. According to age and gender, all samples were divided into three groups. A meta-analysis of the mean and standard deviation values in all groups was performed.

Results: …

Assessment Of Association Between Pain And Root Resorption During Canine Retraction: An Exploratory Study, Hend S. Elsayed

Future Dental Journal

Background: Pain and root resorption are common adverse events reported in the orthodontic literature. Both are side effects of the sterile inflammatory tissue reaction related to the application of orthodontic force. Aim: The aim of this exploratory study was to assess the association between pain and root resorption during canine retraction. Materials and Methods: Twenty-four patients indicated for first premolar extraction and canine retraction were recruited. All patients were treated with 0.022” X 0.028” Roth prescription brackets. After leveling and alignment, canines were retracted over 0.017” X 0.025” stainless steel arch wires. Canines were retracted with elastomeric chains applying 150g …

Efficacy Of Psychological Interventions In The Reduction Of Orthodontic Pain At Its Peak Of Intensity In Patients Undergoing Fixed Orthodontic Treatment: A Systematic Review And Meta-Analysis, Mahmoud Mando Dr., Sameh Talaat Dr.

Future Dental Journal

Objectives: To investigate the efficacy of psychological interventions in the reduction of orthodontic pain at its peak of intensity.

Data sources: A search strategy was implemented using both manual hand search and electronic databases, including Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, ScienceDirect, Scopus and EBSCO.

Resources selection Randomized controlled trials involve 1) patients undergoing fixed orthodontic treatment 2) minimum age of 10 years old, 3) receiving a psychological intervention to control resulted pain and discomfort, 4) medically fit and 5) no previous orthodontic treatment, were included in the systematic review. All articles were checked against the inclusion and …

The Influence Of Cbct-Derived 3d-Printed Models On Endodontic Microsurgical Treatment Planning And Confidence Of The Operator, Shreyas Oza, Johnah C. Galicia

Orthodontics and Endodontics Theses

Aims Use of 3D printed models in Endodontics has been gaining popularity since the technology to create them became more affordable. Currently, there are no studies that evaluate the influence of 3D models on endodontic surgical treatment planning and on operator confidence. Therefore, aims of this study were to: (i) Determine whether the availability of a 3D printed analogue can influence treatment-planning and operator confidence; and, (ii) Assess which factors of operator confidence are influenced, if any.

Materials and Methods Endodontists were asked to analyze a pre-selected CBCT scan of an endodontic surgical case and to answer a questionnaire that …

Segmental Maxillomandibular Rotational Advancement (Smmra) In The Treatment Of Adult Patients With Severe Obstructive Sleep Apnea, Hsien-Ching Hung, Ya-Ying Teng, Yuh-Jia Hsieh, Yi-Chin Wang, Yu-Chih Wang

Taiwanese Journal of Orthodontics

Obstructive sleep apnea (OSA) occurs as an increased collapsibility of the upper airway during sleep, which threatens health and quality of life. Asian men with greater severity of OSA presents less obese and are connected with craniofacial abnormalities. Although the traditional maxillomandibular advancement (MMA) had the comparable effectiveness to the continuous positive airway pressure therapy, the midfacial esthetics might be compromised in Asian individuals. The modified MMA procedure was proposed to balance the esthetic demands and improvement of OSA symptoms. The case report showed a 25-year-old man presented with a diagnosis of severe OSA. The pretreatment Apnea Hypopnea Index (AHI) …

Protraction Of Maxillary Single Side Teeth For Substitution Of Missing Canine And 1st Molar, Wan-Jung Tsai, Szu-Ching Lee, Tzu-Ying Wu

Taiwanese Journal of Orthodontics

This case report presents a 24-year-old female with Class III skeletal pattern, anterior cross-bite, retroclined upper incisors with missing teeth (23, 26, 46). Upper dental midline was shifted to left for 3.5 mm due to early missing of tooth 23. Maxillary sinus pneumatization was noted at both sides.

Our treatment goal was to correct upper dental midline and anterior crossbite. On the other hand, the patient requested to close all of the extraction space and solve the problem of poor prognostic tooth 36. Therefore, we extracted tooth 14 for crowding relief and midline correction. Interdental screw was used to protract …

Surgical Alteration Of Occlusal Plane Angulation Followed By Orthodontic Application Of Tads And Yin-Yang Arch Wire In Hypodivergent Prognathic Malocclusion, Chih-Hsun Hou, Yi-Min Liu, Chia-Yi Pan, Huei-Mei Tsai

Taiwanese Journal of Orthodontics

Surgical clockwise pitch rotation of the maxillo-mandibular complex could change the occlusal plane angulation and thereby open the bite. This procedure also increases the mandibular plane angle by forcing the lower face to turn backward and downward; it is the key to correct both skeletal and dental Class III malocclusions.

This case report presents a skeletal deformaty which primarily resulted from excessive transverse growth and reduced vertical growth in the midface and upper dentition. The counterclockwise growth rotation and excessive forward growth mandible aggravated the sagittal jaw bone discrepancy. The dental effect included canted maxillary occlusal plane and severe attrition …

Indication And Timing Of Mucogingival Soft Tissue Augmentation Associated With Orthodontic Treatment, Shun-Jen Yu, Yi-Hao Lee, Aaron Yu-Jen Wu

Taiwanese Journal of Orthodontics

Gingiva recession is defined as an apical shift of the gingival margin caused by different conditions/pathologies. It is associated with clinical attachment loss. Several studies showed prevalence of gingiva recession in orthodontic patients. Some predisposing factors should be taken carefully considering the effect of the treatment modality. No consensus agreement was identified about the timing of the soft tissue augmentation intervention for orthodontic patients with the risk of gingival recession. However, several critical factors can guide the decision making to obtain the most preferred treatment option.

This article reviews the factors regarding the correlation of gingival margin alteration and orthodontic …

Perception Of And Attitudes On Malocclusion: A Literature Review, Gannaran Narangerel, Hsin-Chung Cheng, Bolormaa Sainbayar, Ganjargal Ganburged

Taiwanese Journal of Orthodontics

Purpose: This study aimed to review published evidence on the perception of and attitude on malocclusion and to examine existing assessment tools and influencing factors.

Methods: PubMed, Cochrane Library, and Scopus databases, as well as electronic archives of the European Journal of Orthodontics, American Journal of Orthodontics and Dentofacial Orthopedics, and Angle Orthodontist, were searched to collect articles that compared perception differences between dental professionals and laypeople. Articles that investigated perceptions of dental professionals were excluded.

Results: The literature search identified 94 articles. A total of 31 suitable studies from 1970 to 2019 were finally considered in the review. …

Could Cephalometric Landmarks Serve As Boundaries Of Maxillary Molar Distalization? A Comparison Between Two- And Three-Dimensional Assessments, Jhong-An Ye, Chi-Yu Tsai, Yi-Hao Lee, Yu-Jen Chang, Shiu-Shiung Lin, Jui-Pin Lai, Te-Ju Wu

Taiwanese Journal of Orthodontics

Purpose: This study aimed at measuring the differences between the two-dimensional (2D) and three-dimensional (3D) radiographic boundaries for molar distalization, and their correlations for the amount of maxillary molar distalization.

Patients and Methods: A total of 250 consecutive adult patients were retrospectively reviewed. All the enrolled patients possessed Angle Class III malocclusion with moderate maxillary crowding and suitable for camouflage treatment. The spatial differences between the 2D and 3D radiographic boundaries were compared and measured. The correlation among the range of the distalization boundary and studied clinical variables were assessed by Pearson correlation and the linear regression to determine the …

Variants Of Facial Shape Genes In Patients With Class Ii Or Class I Malocclusion, Mahsa Mortazavi, Marie M. Tolarová Md, Phd, Drsc, Mirek Tolar

Orthodontics and Endodontics Theses

Background and purpose: In recent years, questions regarding the genetic and environmental factors affecting variation in human craniofacial morphology have received increasing attention. Medical and clinical genetic research using family studies has proven foundational for our understanding of which genes affect craniofacial variation. On the other hand, cephalometricbased studies showed a relationship between the cranial base and midface characteristics among individuals with different skeletal pattern of malocclusion. The purpose of our pilot study was to analyze specific variants of facial genes that were suggested to be associated with cranial base width and depth in Class II and Class I malocclusions. …

Variants Of Pax Gene Family In Patients With Class Ii Or Class I Malocclusion, Mana Naeim, Marie M. Tolarová Md, Phd, Drsc, Mirek Tolar

Orthodontics and Endodontics Theses

Background and Purpose. Orthodontic treatment helps to ensure proper function of teeth and to create healthy smiles. To this aim, the orthodontist’s goal is establishment of an esthetic harmony between soft and hard tissues of the face. Dimensions of facial width and height are crucial for accurate diagnosis and formulation of an efficient treatment plan. A knowledge of genetic determinants of these dimensions in Class II patients will deepen our understanding of etiology of skeletal Class II malocclusions and would make it possible to personalize a patient’s treatment plan. The purpose of our pilot study was to analyze, if specific …

Effects Of Remote Digital Monitoring On Oral Hygiene Of Orthodontic Patients: A Prospective Study, Linda Sangalli, Fabio Savoldi, Domenico Dalessandri, Stefano Bonetti, Min Gu, Alberto Signoroni, Corrado Paganelli

Oral Health Science Graduate Research

BACKGROUND: Remote digital monitoring during orthodontic treatment can help patients in improving their oral hygiene performance and reducing the number of appointments due to emergency reasons, especially in time of COVID-19 pandemic where non-urgent appointments might be discouraged.

METHODS: Thirty patients scheduled to start an orthodontic treatment were divided into two groups of fifteen. Compared to controls, study group patients were provided with scan box and cheek retractor (Dental Monitoring®) and were instructed to take monthly intra-oral scans. Plaque Index (PI), Gingival Index (GI), and White Spot Lesions (WSL) were recorded for both groups at baseline (t₀), every …

Comparison Of The Upper Airway Volume In Orthodontically Treated Cases With First Premolar Extractions, Krystal Park

Loma Linda University Electronic Theses, Dissertations & Projects

Introduction: Comprehensive orthodontic treatment often entails extraction of teeth to accomplish treatment goals. A potential side effect of extraction therapy is arch length shortening resulting in decreased space for the tongue which may cause a low tongue posture and a possible reduction in airway space. The purpose of the study was to retrospectively determine if extractions of all first premolars during orthodontic treatment and the resulting movement of mandibular incisors are correlated with a reduction in airway volume.

Materials and Methods: The T1 and T2 CBCT’s of 80 patients were collected and reviewed. The cases were divided into treatment (extraction) …

Summary Description And Treatment Plan Elements Derived From Cbct And Mri Based Orthodontic Records, Mainer Cruz

Loma Linda University Electronic Theses, Dissertations & Projects

Objectives: This study examined the agreement of summary description and treatment plan elements derived from cone beam computed tomography (CBCT) and 3-Tesla (3T) magnetic resonance imaging (MRI) scans.

Methods: This retrospective study involved thirteen human subjects, all of whom had one CBCT scan (NewTom 5G, AFP Imaging, USA) and one MRI scan (Siemens Medical Solutions, DE) of the whole head performed within a two-week period. CBCT images were taken with a field of view of 18x16 inches and resolution of 0.3x0.3x0.3 mm, over an exposure time of 5.4 seconds. MR images were acquired using a 3.0T imaging system …

Evaluating The Treatment Effectiveness And Efficiency Of The Df2 Protocol Using Invisalign® For Treatment Of Class Ii Malocclusion: A Retrospective Comparison Study, Bryan J. Otis

Loma Linda University Electronic Theses, Dissertations & Projects

Purpose: This retrospective study evaluated the treatment effectiveness and efficiency of the DF2 protocol for correction of class II malocclusions in comparison to conventional protocol using Invisalign®.

Materials and Methods: Clinical and cephalometric data of patients that were treated for class II malocclusion between July 30, 2014 and July 22, 2021 were reviewed and selected. The selected patients were matched for age, sex, and treatment complexity and divided into two groups: Group 1 (G1) —DF2 protocol and Group 2 (G2)—conventional class II Invisalign®. Clinical variables to represent the skeletal and dentoalveolar changes during treatment were assessed using pre-treatment (T1) …

Accuracy Of Digital Indirect Bonding Technique Utilizing 3d-Printed Trays, Phillip Ha

Loma Linda University Electronic Theses, Dissertations & Projects

Purpose: This study investigated the bracket placement accuracy of a digital indirect bonding (dIDB) technique utilizing 3D-printed trays and the effects of dental crowding and tooth type on bracket placement accuracy.

Material and Methods: Thirty digital mandibular models of various amounts of arch length discrepancy (ALD) were categorized into 3 groups according to the amount of ALD. Digital bracket placement was performed from second molar to second molar using Indirect Bonding Studio (3ShapeTM, Copenhagen, Denmark) and this virtual model was used as the control. Indirect bonding trays were designed using Appliance Designer (3ShapeTM) and 3D-printed with the SprintRayTM …

Interrelationship Between Orthodontics And Implantology In Anterior Aesthetic Rehabilitation: A Case Report, Adailton De Morais Cavalcante, Renata Cordeiro Teixeira Medeiros, Danilo Lopes Ferreira Lima, Saulo Ellery Santos

Journal of Dentistry Indonesia

The rehabilitation of complex cases in the anterior region of the maxilla may require knowledge of several dental specialties. when dental involvement also causes bone and gingival involvement, management usually requires adjustment of gingival zenitis and bone graft to compensate for bone loss.

Objective: to discuss a case of previous orthodontic treatment for implant-prosthetic rehabilitation in the anterior region.

Case report: This case report describes a 40-year-old patient who came with the intention of extracting the tooth and installing a bridge. The implant-prosthetic treatment was performed after previous orthodontic treatment to adapt the gingiva and space.

Conclusion: The interrelationship of …