Dentistry Commons^™

Screening For The Novel Cariogenic Pathogen Scardovia Wiggsiae Among Orthodontic Patients, Adam Whiteley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Screening for the Novel Cariogenic Pathogen Scardovia wiggsiae among Orthodontic Patients

by

Adam Whiteley

Dr. Karl Kingsley, Examination Committee Chair Professor of Biomedical Sciences University of Nevada, Las Vegas School of Dental Medicine

The recent discovery of a novel cariogenic pathogen Scardovia wiggsiae has led many scientists and oral health researchers to re-evaluate and re-examine existing saliva repositories to determine the prevalence among patient populations. Recent efforts at this institution have used existing saliva samples to determine the prevalence among both adults and pediatric patients. These studies have revealed this organism may be found in approximately one-quarter of all samples …

Effect Of Bmp Treatment On Periostin Gene Expression In Pre-Osteoblastic Mc3t3-E1 Mouse Cells, Vincent Lee Khang

UNLV Theses, Dissertations, Professional Papers, and Capstones

Periostin is a secreted, extracellular matrix (ECM) protein widely expressed within collagen-rich fibrous connective tissues of the body including the periodontal ligament (PDL), bone, skin, heart, and cornea. Periostin has been shown to serve many important regulatory functions including cell adhesion, cell motility, wound healing and of particular importance to the dental field, differentiation of osteoblasts. The deletion of periostin compromises osteoblast attachment to bone matrix and induces a reduction in mineralization and expression of bone markers, including type I collagen, osteocalcin, osteopontin and alkaline phosphatase. Periostin has also been shown to play a significant role in collagen fibrillogenesis by …

Interleukin-1 Beta (Il-1Β) Gene Polymorphisms In Pre-Treatment Orthodontic Patients Exhibiting Short Root Anomaly (Sra), Satyaprasad Nayak

UNLV Theses, Dissertations, Professional Papers, and Capstones

Root resorption is a frequent unwanted occurrence during orthodontic treatment. Biological factors include the quantity of specific inflammatory mediators, growth factors, and hormones as well as an individual’s specific alleles for the genes encoding these mediators. Studies have shown an association between external apical root resorption (EARR) and the single nucleotide polymorphism (SNP) at +3954 of the IL-1β gene. Studies have also shown associations between chronic periodontitis and IL-1β gene polymorphisms in the region of +3954, -511 and -31. All previous studies to date, have evaluated genetic factors and root resorption in orthodontic patients in-treatment or post-orthodontic treatment. This study …

3-D Upper Airway Comparison Between Class I And Class Ii Adults With Excessive Daytime Sleepiness, Nga Nguyen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: The aim of the study is to determine whether there is a relationship between the risk for daytime sleepiness in adults with Class I and Class II malocclusion and the airway volume, minimum cross-sectional area, and shape at the minimum cross sectional area.

Introduction: Sleep disordered breathing (SDB) is a category of conditions defined by airway complications while a person is sleeping. Obstructive sleep apnea (OSA) is the most common of these disorders and is defined as the presence of repeated episodes of complete or partial airway obstruction, which may be associated with loud snoring and daytime sleepiness. Daytime …

Prevalence Of Cariogenic Microbial Flora Among Scardovia Wiggsiae-Positive And Negative Patients, Amy Tam

UNLV Theses, Dissertations, Professional Papers, and Capstones

The formation of dental caries (cavities) is a complex, multi-dimensional process that necessarily involves many risk factors – including the acquisition and colonization of cariogenic oral bacteria. The most frequently associated oral pathogens are the acid-producing and acid-tolerant oral streptococcus species, such as Streptococcus mutans (S. mutans or SM). Many studies have established and confirmed the critical role of the formation of biofilm in the virulence of S. mutans, and the critical role this may play in determining the balance of the oral microbiome towards health or disease.

More recent efforts have discovered a novel cariogenic pathogen, Scardovia wiggsiae (S. …

Levels Of Interleukin-1Β And Interleukin-17 In The Tension And Compression Sites Of Teeth During Orthodontic Movement, Suzanne Wen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Orthodontic tooth movement requires coordinated bone resorption and deposition in response to mechanical stimuli. Underlying this process is a complex network of biological signaling to activate osteoclasts and osteoblasts. The broad category of small proteins known as cytokines include many potential mediators involved in complex interactions to initiate tooth movement. One of the signaling factors is interleukin-1β (IL-1β), which plays a critical role in inflammation and bone erosion via the activation of osteoclasts. IL-1β is a key cytokine involved in osteoclast differentiation, multinucleation, and overall survival. Recently, interleukin-17 (IL-17) has been identified as a potent inducer of inflammation that influences …

Ada News - 05/07/2018, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

Interdisciplinary Knowledge Of Etsu Dental Hygiene And Nutrition Students, Jade Merritt

Undergraduate Honors Theses

There is a significant relationship between nutrition, systemic disease, and oral health. The integration of both nutrition and oral health information into educational programs for dental hygiene and nutrition students is vital for each profession. The purpose of this study was to determine the knowledge levels of dental hygiene and nutrition students in regards to content material pertaining to each discipline. This study attempted to provide baseline data for those teaching in ETSU’s Dental Hygiene and Nutrition programs to determine if modifications in the curricula are needed to better prepare future students. Results indicated that there was not a significant …

Etsu Dental Hygiene Students’ Interest In And Perceived Preparedness For Nontraditional Or Expanded Roles After Graduation, Olivia Rowell

Undergraduate Honors Theses

Purpose

This study assessed ETSU dental hygiene students’ perceptions and attitudes toward their careers after graduation in relation to underserved populations’ lack of access to dental care and nontraditional roles for dental hygienists.

Methods

A voluntary simple survey was used to assess the following: dental hygiene students’ exposure to and knowledge about underserved populations and nontraditional roles for dental hygienists, students’ favor or opposition toward these nontraditional roles, students’ interest in nontraditional roles, and students’ perceived preparedness to work outside of a traditional dental office in nontraditional roles to provide care for underserved populations. The survey data was aggregated and …

New Dentist News (May 2018), Ada Committee On The New Dentist

New Dentist News

New Dentist News offers timely information on scientific, social, educational, political and economic developments affecting new dentists. This collection is historical and items may not reflect current standards. For up-to-date information contact the ADA. The New Dentist News was alternately titled ADA Lifeline, 1997-June 2001.

Evaluation Of The Biocompatibility And Micromechanical Properties Of Experimental Dental Adhesives, Hoda Moussa

Forensic Science Theses

The purpose of this study was to investigate the biocompatibility and micromechanical properties of newly synthesized antibacterial monomer and cross-linker functional surfactants into a commercially available dental adhesive (Single Bond, 3M ESPE, Saint Paul, MN, USA) at three concentrations (0.05, 0.1, 0.25 mg/mg). All groups were analyzed by evaluation of micro-tensile bond strength, ultimate tensile strength, cell viability, antibacterial properties, and surface micro-hardness. Scanning electron microscopy (SEM) was used for interfacial characterization.

Human extracted molars were used as a substrate for bonding adhesives for the micro-tensile bond strength (MTBS) and scanning electron microscopy (SEM) studies. Twenty resin-dentin beams (0.9 ± …

Effect Of Porcelain Thickness And Translucency On The Final Shade Of Ips E.Max Cad Overlaying A Dark Substrate., Peter F. Alena

Electronic Theses and Dissertations

IPS e.max is a very esthetic lithium disilicate used in dental ceramics. Unfortunately, it can unintentionally change color after cementation with resin cements. The purpose of this study is to better understand how combining thickness and translucency affects the post-cementation shade of IPS e.max CAD overlaying a dark substrate, thereby enabling clinicians to choose more appropriate techniques and materials. IPS e.max CADs (A1 shade) had either a low translucency (LT) or high translucency (HT), and cut with 0.3mm, 0.5mm, and 1.0mm thicknesses. Each sample overlaid a resin cement and dark substrate, a spectrophotometer helped derive the color difference (ΔE*ab), and …

Periodontitis In Patients With Type 2 Diabetes Mellitus, Simran Agarwal, Deepthi Gangaram, Mir Saleem

Biology Faculty Articles

Periodontitis is a chronic, inflammatory disease that is characterized by swollen gums, degradation of jaw structure, and potentially tooth loss. Like Periodontitis, Type 2 Diabetes Mellitus is also highly prevalent and largely multifactorial. Type 2 Diabetes is a condition in which higher than normal blood glucose levels cannot be properly maintained as the body’s normal mechanism of maintaining proper blood glucose levels, the release of insulin from pancreatic islet β-cells, becomes ineffective. The purpose of this literature review is to explore the relationship between the incidences of Periodontitis and Type 2 Diabetes. The risk that Type 2 Diabetes poses for …

Long-Term Dental Outcomes Of The Professional Education Preparation Program., Samuel D. Petersen

Electronic Theses and Dissertations

Introduction: The Professional Education Preparation Program (PEPP) is a health careers pipeline program for Kentucky pre-health students from Health Professional Shortage Area counties and/or racial/ethnic groups underrepresented in the health professions. The purpose of this study was to determine the demographics of the dental PEPP participants and if, post dental school graduation, they were providing care for underserved patient populations Methods: PEPP dental graduates (n=114) had been previously identified. Participants were contacted by phone, asked to participate and then mailed a survey. Survey questions covered personal, practice and patient characteristics, procedures performed, insurance accepted and community outreach. Logistic regression analysis …

Intraoral Imaging At Insertion Of Implant Supported Restorations At An Academic Institution : Conformity To Established Guidelines., J. Alec Power

Electronic Theses and Dissertations

The objective of this study was to establish the frequency of intraoral imaging at the time of insertion of implant supported restorations at University of Louisville School of Dentistry (ULSD). After IRB approval (14.1215), patients on whom an implant-supported single unit fixed restoration was placed were identified from the electronic health record over a 4-year period. Type of prosthesis retention (cement vs. screw) and discipline responsible for crown placement was recorded. Bitewing (BWx) or periapical (pa) images taken at the time of prosthesis placement were accessed and reviewed. Overall radiographic frequency according to modality was tallied and compared using Chi-square …

Development Of Blended Polymeric Fibers To Alter The Release Of Peptide Targeting Porphyromonas Gingivalis., Sonali Suresh Sapare

Electronic Theses and Dissertations

Periodontitis is a chronic inflammatory disease that infects the tissues of the periodontium. It is estimated that 47.2% or 67.2 million American adults suffer from mild, moderate and severe periodontitis. Globally, 30-50% of the adult population is afflicted with periodontal disease, making it one of the most prevalent infectious diseases in the world. Therapeutics targeting P. gingivalis may be effective to alter periodontitis progression. However, the current treatment modalities that target critical pathogens to maintain host-biofilm homeostasis are limited, urging the development of specifically targeted therapeutics to limit P. gingivalis recolonization of the oral cavity after periodontal treatment and healing. …

Quality Of Postoperative Pain Management After Maxillofacial Fracture Repair, Andre Peisker, Winfried Meissner, Gregor F. Raschke, Mina D. Fahmy, Arndt Guentsch, Juliane Schiller, Stefan Schultze-Mosgau

School of Dentistry Faculty Research and Publications

Background: Effective pain management is an essential component in the perioperative care of surgical patients. However, post-operative pain after maxillofacial fracture repair and its optimal therapy has not been described in detail.

Materials and Methods: In a prospective cohort study, 95 adults rated their pain on the first postoperative day after maxillofacial fracture repair using the questionnaire of the Quality Improvement in Postoperative Pain Management (QUIPS) project. Quality Improvement in Postoperative Pain Management allowed for a standardized assessment of patients’ characteristics and pain- related parameters.

Results: Overall, the mean maximal pain and pain on activity (numeric rating scales) were significantly …

A Survey Of The Implementation And Usage Of Electronic Dental Records And Digital Radiographs In Private Dental Practices In Mississippi, Barbara K. Brent

Electronic Theses and Dissertations

Implementation of electronic health records by the Health Information Technology for Economic and Clinical Health has led to the implementation of electronic dental records (EDRs) and digital radiography in dental offices. The purpose of this study was to determine the state of the implementation and usage of EDRs and digital radiographs by the private general and pediatric dental practices in Mississippi as well as reasons why the dental practices are not moving forward with the advanced technology.

A survey was emailed to 712 dental practices: 116 responded (16% response rate), and 104 consented to participate (89.66%). Results indicated dental practices …

Understanding The New Blood Pressure Guidelines, Susan H. Davide, Anty Lam

Publications and Research

Oral health professionals who are well versed in the new guidelines will be best prepared to handle the implications on patient care.

Implementing A Multifaceted Approach To Caries Prevention, Diana V. Macri

Publications and Research

ental caries is a transmissible bacterial infection whose prevalence and severity are affected by multiple factors. It occurs on a continuum, with cycles of demineralization and remineralization occurring over years. Much has been written about the effects of fluoride on the caries process, including public health interventions such as community water fluoridation and various types of professional applications. Despite this, caries remains a significant chronic disease. Public health scholars and agencies have recognized the need for multiple interventions in ensuring the adoption of healthier behaviors in populations. For this reason, it is important for oral health professionals to advocate legislatively …

Clinical Long-Term Success Of Contemporary Nano-Filled Resin Composites In Class I And Ii Restorations Cured By Led Or Halogen Light, Torsten Pflaum, Stefan Kranz, Regina Montag, Arndt Guentsch, Andrea Völpel, Robin Mills, Klaus Jandt, Bernd Sigusch

School of Dentistry Faculty Research and Publications

Objectives

The use of LED light-curing units (LED LCUs) for polymerising resin-based composite restorations has become widespread throughout dentistry. Unfortunately, there is a paucity of clinical longitudinal studies that evaluate the comparative efficacy of LED-based polymerisation in direct posterior composite restorations. The aim of the present study was to investigate the performance of class I and II resin composite restorations for two successful composite restorative materials cured with LED versus halogen LCUs.

Methods

One hundred restorations were placed using the nano-filled composites Grandio® or Filtek™ Supremé. The following test groups were established: LED-Grandio® n = 23 (LG), LED-Filtek™ Supremé n …

Oral Sciences Phd Program Enrollment, Graduates, And Placement: 1994 To 2016, C. R. Herzog, David W. Berzins, P. Denbesten, R. L. Gregory, K. M. Hargreaves, R. L.W. Messer, M. Mina, M. P. Mooney, M. L. Paine, C. Phillips, R. B. Presland, R. G. Quivey, F. A. Scannapieco, J F. Sheridan, K. K.H. Svoboda, P. C. Trackman, M. P. Walker, S. G. Walker, C. Y. Wang, J. C.C. Hu

School of Dentistry Faculty Research and Publications

For decades, dental schools in the United States have endured a significant faculty shortage. Studies have determined that the top 2 sources of dental faculty are advanced education programs and private practice. Those who have completed both DDS and PhD training are considered prime candidates for dental faculty positions. However, there is no national database to track those trainees and no evidence to indicate that they entered academia upon graduation. The objective of this study was to assess outcomes of dental school–affiliated oral sciences PhD program enrollment, graduates, and placement between 1994 and 2016. Using the American Dental Association annual …

A Hemispherical Contact Model For Simplifying 3d Occlusal Surfaces, Miguel Castro-Garcia, Pedro Ángel Moreno-Cabello, Miguel Ángel Rubio-Paramio, Pilar Carranza-Cañadas, Geoffrey A. Thompson

School of Dentistry Faculty Research and Publications

Statement of problem

Currently, dental articulators can recreate mandibular movements and occlusal contacts. However, whether virtual articulators can also provide information about occluding dental surfaces, functional movements, and the mandibular condyles is unclear.

Purpose

The purpose of this in vitro study was to evaluate the occluding surfaces on dental casts obtained from a patient and approximate them to a hemispherical contact model. Both models were tested by digitizing the Dentatus ARL dental articulator.

Material and methods

A combination of photogrammetry and structure from motion methods were used to scan a Dentatus ARL articulator and representative dental casts. Using computer-aided engineering …

Analysis Of Flexural Strength And Contact Pressure After Simulated Chairside Adjustment Of Pressed Lithium Disilicate Glass-Ceramic, Ali Ramadhan, Geoffrey A. Thompson, Georgios Maroulakos, David W. Berzins

School of Dentistry Faculty Research and Publications

Statement of problem

Research evaluating load-to-failure of pressed lithium disilicate glass-ceramic (LDGC) with a clinically validated test after adjustment and repair procedures is scarce.

Purpose

The purpose of this in vitro study was to investigate the effect of the simulated chairside adjustment of the intaglio surface of monolithic pressed LDGC and procedures intended to repair damage.

Material and methods

A total of 423 IPS e.max Press (Ivoclar Vivadent AG) disks (15 mm diameter, 1 mm height) were used in the study. The material was tested by using an equibiaxial loading arrangement (n≥30/group) and a contact pressure test (n≥20/group). Specimens were …

A Hint Of Success, Sarah Asp Olson

Frontiers

Angela Monson's unique teaching tool is a boon for precision in dental hygiene instruction.

Ada News - 04/16/2018, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

1st Place Contest Entry: Provisional Patent Research Process, Joshua Goldfaden

Kevin and Tam Ross Undergraduate Research Prize

This is Joshua Goldfaden's submission for the 2018 Kevin and Tam Ross Undergraduate Research Prize, which won first place. He wrote about abrasive chemicals in commercial toothpastes and created a provisional patent to develop a safer alternative.

Joshua is a sophomore at Chapman University, majoring in Biochemistry and Molecular Biology. His faculty mentor is Dr. Yu-An (Peter) Chang.

Chlorine Stain And The Oral Cavity, Alexandra B. Moore

Dental Hygiene ETDs

Swimming is known worldwide as one of the healthiest, low-impact forms of exercise and for the subsequent promotion of a strong body, heart, and mind. However, many swimmers and non-swimmers do not realize that swimming in a pool can have a negative effect on the oral cavity. Several studies have suggested that pool chlorination is responsible for dental erosion, calculus formation, and stain in competitive and recreational swimmers, and this phenomenon is known as ‘swimmer’s mouth.’ A pilot experimental research study was conducted that evaluated the prevalence of chlorine stain in the oral cavity of twenty-one female swimmers from the …

Minnesota Dentists’ Opinion Of The Dental Therapy Workforce Model, Marguerite J. Rogers 4435350

Dental Hygiene ETDs

The state of Minnesota developed the dental therapy workforce model to help alleviate the disparity in access to dental care. Despite success in other countries and acceptance by other professional organizations in the United States, some dentists continue to oppose this workforce model. The purpose of this study was to quantify Minnesota dentists’ attitudes regarding the utilization of dental therapists in that state. A survey was constructed that queried dentists’ opinion on dental therapists performing irreversible procedures and dental therapists alleviating the disparity in access to dental care. A stratified random sample of 1,000 dentists were invited to participate in …

Ada News - 04/02/2018, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.