Dentistry Commons^™

Legacy Project: Encouragement Wall, Skye Lewis

A with Honors Projects

For this combined A with Honors and Legacy Project, the student leaves behind a mural and a wall of encouragement for her Dental Hygiene classmates. This short paper explains her motivation and includes photographs of the project.

Ada News Convention Daily - 2017 Day 3, American Dental Association, Publishing Division

ADA News

The ADA News Daily (also called the ADA News Convention Daily) is a special edition of the ADA News published each day during American Dental Association Annual Sessions.

Prevalence And Clinical Characteristics Of Teeth Extracted With A Diagnosis Of Cracked Tooth: A Retrospective Study, Riley B. Sturgill

Theses and Dissertations

The body of knowledge that exists regarding cracked teeth is limited. The purpose of this study was to determine the prevalence of cracks among extracted teeth. This retrospective longitudinal cohort study included patients of the Virginia Commonwealth University School of Dentistry that underwent extraction procedures over a 6 year period. The sample consisted of 20,408 patients and 40,870 teeth. Statistical analysis software was used to identify diagnoses of a crack, fracture, or split tooth prior to extraction of the tooth by analyzing the Electronic Health Record (EHR) (axiUm™, Version 6.03.03.1035, Exan Corporation, Vancouver, BC, Canada). There were 3,228 teeth …

Evaluation Of Volumetric Change Of Periapical Lesions After Apicoectomy As A Measure Of Postsurgical Healing Utilizing Cone Beam Computed Tomography, Eshwar Arasu

Theses and Dissertations

The aim of this study was to evaluate whether volumetric changes in persistent periapical lesions can be detected in follow-ups six months to five years after apicoectomy using cone-beam computed tomography. Patients with a previous treatment history of apicoectomy and for whom a pre-surgical CBCT scan was taken between November 2010 and December 2015 were invited to participate in the study. A post-surgical CBCT image of the treated tooth was obtained at the recall visit. Volumetric and linear measurements of periapical lesions on initial and postoperative CBCT images were performed using DiThreshGUI software and two calibrated examiners—a board-certified endodontist and …

Orthodontists' And Parents' Perspective Of Occlusion In Varying Anterior-Posterior Positions: A Comparative Study, David H. Lindsey

Theses and Dissertations

Objective: The purpose was to compare orthodontists’ and parents’ perception of orthodontic treatment outcomes in the anterior-posterior (AP) dimension. Assessment of treatment time and compliance were also investigated.

Material and Methods: Parallel surveys for orthodontists (n=1000) and parents (n=750) displayed occlusions from 3 mm Class III (Cl III:3) to 3 mm Class II. Participants rated occlusal relationships on a 100 mm VAS from least to most acceptable (0-100).

Results: 233 orthodontists (23%) and 243 parents (32%) responded. Orthodontists (mean=93.9, 25.9) and parents (mean=80.7, 40.9) rated Class I (Cl I) occlusion most and Cl III:3 least acceptable. No significant difference was …

A Comparison Of Moderate Oral Sedation Drug Regimens For Pediatric Dental Treatment: A Pilot Study, Ojas A. Parikh

Theses and Dissertations

Purpose: Compare moderate oral sedation of pediatric patients using Hydroxyzine and Meperidine with either Diazepam or Midazolam in management of pediatric dental patients.

Methods: Randomized, double-blind, crossover pilot study of patients 3 to 7 years of age requiring two sedation visits. Frankl and Houpt behavior scores recorded at injection time, initiation of treatment and 100% oxygen at end of treatment. Postoperative phone call surveys conducted within eight hours and within 24 hours of discharge. Wilcoxon Signed-Rank tests, Fisher’s Exact Chi-squared test and 0.10 significance level.

Results: 25 subjects completed 35 sedations. Eight participants completed both treatments and demonstrated significantly higher …

Adding Ferrous Sulphate To Hydrogen Peroxide Tooth Bleaching Gels Reduced The Required Bleaching Time, Thunnithie Thitichoatariyakun

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objective To investigate the effect of adding ferrous sulphate (FeSO4) as a chemical activator to hydrogen peroxide tooth bleaching gels on color change and treatment time. Methods One hundred and twenty extracted human upper premolars, hue A or B, were selected. One enamel-dentin specimen was prepared from each tooth. The specimens were divided into twelve groups (n=10), based on bleaching product, FeSO4 and treatment time. Three in-office bleaching products were used in this study: Opalescence® Boost TM, PolaOffice® and ZOOM!® Whitespeed TM. Each product was used per its specific protocol: 1: untreated control (C), 2: FeSO4 added, using the product's …

The Use Of Oral Appliances For Obstructive Sleep Apnea-Hypopnea Syndrome (Osahs ), You-Ning Gao, Jenny Zwei-Chieng Chang, Ming-Hsien Lan, Wen-Chung Chang, Yuan-Yi Tung

Taiwanese Journal of Orthodontics

The obstructive sleep apnea–hypopnea syndrome (OSAHS) is a common sleep-related breathing disorder characterized by repetitive obstructions of the upper airway during sleep. Nasal continuous positive airway pressure (CPAP) is the primary choice of treatment for OSAHS, but many patients are unable or unwilling to comply with the treatment. The modification of pharyngeal patency by oral appliances (OA) is an alternative treatment for OSAHS. This article provides a brief review and information of the oral appliance application in treating OSAHS.

Non-Surgical Treatment For A Patient With Angle Class Ii Division 2 Malocclusion With Severe Deep Bite: A Case Report, Yuan-Jung Wang, Jia-Iin Chang, Aaron Yu-Jen Wu, Ren-Jye Chen, Shiu-Shiung Lin, Te-Ju Wu

Taiwanese Journal of Orthodontics

This report describes a non-surgical orthodontic treatment for a 36-year-old male patient who had Class II division 2 malocclusion (Class II/2) with deep bite more than 100%, gingival recession, and periodontal abscess in the mandibular anterior region. Patient had history of trauma in region. The surgical intervention was once suggested but was refused by the patient. The compromised but acceptable final results were achieved by nonsurgical approach. The treatment plan included periodontal control, maxillary incisor intrusion and restoration of the collapsed occlusion. The total treatment duration was 43 months. The patient was satisfied with the treatment outcomes via interdisciplinary approach …

The Orthodontic Treatment Of Bilateral Impacted Maxillary Canines - A Case Report, Yu-Hsuan Chang-Chien, Li-Tyng Sun, Te-Ju Wu, Chia-Ling Tsai, Wei-Yung Hsu, Shiu-Shiung Lin

Taiwanese Journal of Orthodontics

The maxillary canine impaction is a specific topic in orthodontic treatment. Because of its important role in esthetics and occlusal function, preservation and alignment of the impacted canine would always be the priority in teenage orthodontics. In addition to the routine analysis of the space distribution for the impacted canines, orthodontists should also consider the growth potential to achieve proper treatment outcome. This case report presents the orthodontic treatment of a 14-year-old boy with bilateral maxillary canine impaction. With fixed orthodontic appliance, the bilaterally impacted canines were successfully aligned into maxillary dentition with good interdigitation. The prevalence, etiology and the …

Relationship Of The Surface Electromyography In Masticatory Muscles With The Vertical Facial Patt Erns And Orthodontic Tooth Movement, Carol Yi-Hsuan Chen, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

Introduction: Controversy about the relationship among masticatory muscles, craniofacial morphology and the orthodontic anchorage preparation has not yet been clarified in the literatures. The purpose of this study was to evaluate whether the vertical facial patterns and masticatory surface electromyography (sEMG) influence the molar anchorage and characteristic orthodontic tooth movement. Methods: Subjects for this study comprised 18 patients with a mean age of 23.7 years who had completed orthodontic treatment with therapeutic symmetric extraction. The sEMG data were acquired at the time of bracket debond. The sEMG of anterior temporalis and masseter muscles were recorded during the rest position and …

Camouflage Treatment In Adult Patient With Mandibular Lateral Displacement, Transverse Deficiency And Facial Asymmetry – A Case Report, Yu-Ling Tsai, Chun-Liang Kuo, I-Hua Liu

Taiwanese Journal of Orthodontics

Facial asymmetry is common in humans. Significant facial asymmetry causes both functional as well as esthetic problems. The etiologies of facial asymmetry include congenital disorders, acquired diseases, and traumatic and developmental deformities. The causes of many cases of developmental facial asymmetry are indistinct. The principle of facial asymmetry management would be correcting the underlying disorder. Orthognathic surgery is the first and better choice if face correction is the primary consideration. Camouflage orthodontic treatment was a non-invasive option for mild to moderate severity of asymmetry. We present a case with mandibular lateral displacement, transverse deficiency and facial asymmetry in a 19-year-old …

Definitive Surgical-Orthodontic Treatment To Correct The Problems Subsequent To Early Skeletal Class Iii Camouflage, Siripatra Patchanee, Ellen Wen-Ching Ko, Cheng-Hui Lin

Taiwanese Journal of Orthodontics

This case report describes the treatment of a 21-year-old female patient who was disappointed with the outcome of a previous orthodontic treatment and complained about her chin prominent. She had skeletal Class III malocclusion with concave facial profile, hypodivergent facial pattern with deep overbite. The previous Class III camouflage orthodontic treatment was done by teeth 34, 44 extraction since she was 12 years old. With the concept of surgery-first approach, the surgical treatment plan included LeFort I osteotomy clockwise rotation of maxilla and bilateral sagittal split ramus osteotomy backward rotation of mandible with genioplasty and angle reduction in order to …

Orthodontic Treatment Of Adult Skeletal Class Ii With Idiopathic Condylar Resorption History And Severe Anterior Open Bite Without Using Temporary Anchorage Device – A Case Report, Chng-Yung Yap, Chun-Liang Kuo

Taiwanese Journal of Orthodontics

The aim was to present the treatment of an adult patient with idiopathic condylar resorption (ICR) who exhibited good adaptation of condyles after orthodontic treatment and to discuss management of anterior open bite when it is related with TMJ problems. A case of 47 y/o female with skeletal Class II, anterior open bite and ICR history under bite-plate therapy and regular follow up. Intraoral examination noted premature contact and occlusal interference over bilateral posterior teeth. Our treatment plan is orthodontic camouflage treatment to correct anterior open bite and remove all 3rd molars and hopeless UL 2nd molar. An implant was …

Investigation Of Medical Disputes Involving Dentists Performing Orthodontic Treatments In Taiwan, Chih-Ling Lin, Sheng-Pin Hsu, Yu-Kun Chih

Taiwanese Journal of Orthodontics

Introduction: Medical disputes have received increasing attention in recent years. Under the assistance of the academic and medical affairs committees of the Taiwan Association of Orthodontists, this study explored medical disputes among orthodontists performing orthodontic treatments in Taiwan in 2016. Methods: This study adopted a questionnaire survey, which was divided into three sections, namely the surveyed orthodontists’ demographic information, medical services, and subjective views on orthodontic-related medical disputes. The results were compared with those from a study conducted in 2010. Subsequently, topics related to clear aligner therapy and orthognathic surgery were examined. Results: The results indicated that 32.3% of the …

Is Early Treatment With Functional Appliances Worth The Effort? A Discussion Of The Pros And Cons Of Early Interceptive Treatment, Ib Leth Nielsen

Taiwanese Journal of Orthodontics

Early treatment of Class II, Div. 1 malocclusion is a much debated approach and some evidence based studies using a single appliance concluded that this approach was often not worthwhile. This article will discuss the pros and cons of early treatment with functional appliances and present guidelines for early treatment. The role of facial growth and dentoalveolar development, and growth intensity will be discussed as they relate to treatment outcome. A retention protocol for early treatment with functional appliances will be suggested.

Dental Pulp Response To Orthodontic Tooth Movement, Chih-Wei Wang, Kai-Long Wang, Kwok-Hing Ho, Shun-Chu Hsieh, Heng-Ming Chang

Taiwanese Journal of Orthodontics

Pulp vitality may occasionally change while tooth experiencing orthodontic movement, and orthodontists are the particular group who concern this phenomenon if it happens. The respiration rate of dental pulp will be depressed inevitably in short term when tooth is subject to orthodontic force. If force level is extreme, circulatory interruption can occur and further induce pulp necrosis. When orthodontic movement on pulpalcompromised teeth (e.g. teeth with trauma history or large restorations) is required, the pulp response to orthodontic force should be monitored. This article provides an overall review on the pulpal reactions during orthodontic movement and dental movement on teeth …

Combine The Orthodontic-Orthognathic Surgical Correction On Class Ii Division 2 Malocclusion, Supawadee Hasprayoon, Ellen Wen-Ching Ko, Ying-An Chen

Taiwanese Journal of Orthodontics

This case report illustrates a combined orthodontic-orthognathic surgical treatment option for correction of Class II division 2 malocclusion. A 31-year-old female patient, presenting a chief complaint of gummy smile and backward position of anterior teeth, came to seek for treatment. She had skeletal Class II with hypodivergent facial type and mild asymmetric face. Intraoral examination revealed a severe deep bite with 13 mm overbite. The pre-surgical orthodontic treatment consisted of proclination of the maxillary incisors and increased in overjet to provide space for surgical advancement of mandible; the mandibular curve of Spee was partially leveled and maintained some parts of …

Surgical-Orthodontic Treatment With Molar Protraction In A Patient With Skeletal Class Iii Anterior Open Bite And Facial Asymmetry, Yi-Hsuan Chen, Cheng-Hui Lin, Ellen Wen-Ching Ko

Taiwanese Journal of Orthodontics

A 20-year-old young male complained of his protrusive and deviated chin. He also presented occlusal plane cant, anterior open bite and unrestorable maxillary right first molar and mandibular left first molar. The severe maxilla-mandibular discrepancy was solved with surgery-first double jaw orthognathic surgery. The space of two extracted first molars was closed by protraction of the second and third molars after surgery. Two protraction techniques were used in this case, including closing maxillary right first molar space with reciprocal retraction, and closing mandibular left first molar with one miniscrew as an absolute anchorage. Careful biomechanical consideration was used during protraction …

A 4-Year Follow-Up Of A Rare Case With Ectopic Eruption Of The Permanent Second Molars Associated With Resorption Of The Permanent First Molars, Hui-I Chen, Wen-Hui Hsieh, Chih-Hsiang Chan, Hsuan-Fang Lai

Taiwanese Journal of Orthodontics

A rare case-a 11-year-old boy with ectopic eruption of all the permanent second molars associated with resorption of all the permanent first molars was reported. Severe root resorption was found in the mandibular first molars, while moderate root resorption was found in the maxillary first molars. There were several points should be addressed into consideration: (1) young age; (2) the third molars will probably be brought into occlusion in the future; (3) Class III jaw relationship. The orthodontic treatment was approached with two-stage. Stage I treatment was aimed to upright the mandibular second molars after removal of the mandibular first …

Expanding Dental Practices Into Long-Term Care, American Dental Association

Action for Dental Health

No abstract provided.

Oral Health: The Need For Both Conventional Microbial And Molecular Characterization, Elisheva Friedman, Negin Alizadeh, Zvi G. Loewy

Touro College of Pharmacy (New York) Publications and Research

This study aims to consider the microbial distribution in oral disease, as well as gene analysis and expression, in elucidating: 1, the fundamental underpinnings of oral disease, and 2, the potential relationship between oral diseases and systemic health. A key focus is identifying the microbiota associated with oral disease manifestations characterized by both conventional microbiological and molecular methods. Variations in the observed microbial populations characterized by conventional and molecular approaches have been identified for caries, periodontitis, peri-implantitis, and stomatitis. The discovery of therapeutic approaches for oral disease will require comprehensive microbial and genomic analysis. This study evaluated the current state …

Nitrosative Stress Sensing In Porphyromonas Gingivalis: Structure And Function Of The Heme Binding Transcriptional Regulator Hcpr, Benjamin R. Belvin

Theses and Dissertations

Porphyromonas gingivalis, a Gram negative anaerobe implicated in the progression of periodontal disease, is capable of surviving and causing infection despite high levels of reactive nitrogen species found in the oral cavity due to its efficient nitrosative stress response. HcpR is an important sensor-regulator that plays a vital step in the initiation of the nitrosative stress response in many Gram negative anaerobic bacteria. We employ a combination of X-ray crystallography, SAXS, resonance Raman spectroscopy, UV-Vis spectroscopy, and molecular biology techniques to better understand this key regulator. Knockout of the hcpR gene in W83 P. gingivalis results in the inability of …

2017 Transactions, American Dental Association

ADA Transactions

This item is part of the Transactions of the ADA, a serial publication of the annual activities of the ADA House of Delegates (HOD)/Board of Trustees (BOT). It is from the Transactions section, one of three subtitles that make up the full publication. Generally, the ADA Transactions are published in multiple volumes throughout the year. Pages from the Annual Reports and the Transactions are numbered consecutively (e.g. Annual Reports volume ends pg. 500 and Transactions volume starts at pg. 501). NOTE: All three subtitles are collectively known as the Transactions of the ADA or, alternatively, the ADA Transactions. Transactions refers …

2017 Annual Reports And Resolutions, American Dental Association

ADA Transactions

This item is part of the Annual Reports and Resolutions subtitle of the ADA Transactions, a serial publication of the annual activities of the ADA House of Delegates (HOD)/Board of Trustees (BOT) made up of three separate subtitles: Annual Reports and Resolutions, Supplements, and Transactions. Generally, the ADA Transactions are published in multiple volumes throughout the year. Older versions include reports from all departments as subsections, while more recent versions include only those of councils, commissions, and committees.

2017 Supplement Vol. 1, American Dental Association

ADA Transactions

This item is part of the Supplements subtitle of The ADA Transactions, a serial publication of the annual activities of the ADA House of Delegates (HOD)/Board of Trustees (BOT) made up of three separate subtitles: Annual Reports and Resolutions, Supplements, and the Transactions. Generally, The ADA Transactions are published in multiple volumes throughout the year. The Supplements function like an appendix and are, in more recent editions, numbered separately with page numbers determined by HOD reference committee assignation. Items are described variously as "Supplement #", "Volume #", etc. throughout the series but have been labeled here as Vol. # for …

2017 Supplement Vol. 2, American Dental Association

ADA Transactions

This item is part of the Supplements subtitle of The ADA Transactions, a serial publication of the annual activities of the ADA House of Delegates (HOD)/Board of Trustees (BOT) made up of three separate subtitles: Annual Reports and Resolutions, Supplements, and the Transactions. Generally, The ADA Transactions are published in multiple volumes throughout the year. The Supplements function like an appendix and are, in more recent editions, numbered separately with page numbers determined by HOD reference committee assignation. Items are described variously as "Supplement #", "Volume #", etc. throughout the series but have been labeled here as Vol. # for …

National Children's Dental Health Month Activity Book (2017), American Dental Association Foundation

National Children's Dental Health Month

No abstract provided.

The Effects Of Sports Drinks On Teeth, Gabriel Kaye

The Science Journal of the Lander College of Arts and Sciences

With a push towards a more active lifestyle, the sports drink industry has grown substantially in recent years. However, despite their popularity, sports drinks contain acid, giving them extremely low pHs, which can cause erosion. There have been many studies, including self-administered surveys, studies in vitro, and studies in situ that have shown sports energy drinks cause dental erosion, leading to permanent loss of tooth volume and a softening of the outer layer of the tooth.

Is Tooth Bleaching Really Safe?, Yehoshua Krasnow

The Science Journal of the Lander College of Arts and Sciences

The field of cosmetic dentistry emerged when people began to realize the importance of a good smile. Stains on teeth were no longer deemed acceptable with the advent of cheap and safe procedures like tooth bleaching. This new procedure replaced the older, more costly and invasive method of laminated veneers and crowns. The chemistry behind this bleaching occurs via unstable hydroxyl radicals and thus the question arose as to how safe this accepted procedure really is. The purpose of this paper is to analyze the negative ramifications of tooth bleaching and to determine if it’s truly safe. The null hypothesis …