Medicine and Health Sciences Commons^™

Ada News - 12/12/2011, 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.

Effects Of Synthetic Cortical Bone Thickness And Force Vector Application On Temporary Anchorage Device Pull-Out Strength As Related To Clinical Perspectives Of Practicing Orthodontists, Ira Rothstein

Student Theses, Dissertations and Capstones

December 2011.

A thesis submitted to the College of Dental Medicine of Nova Southeastern University of the degree of Master of Science in Dentistry.

Background: Temporary anchorage devices (TADs) provide a versatile means by which orthodontic anchorage can be established without the need for patient compliance and complex force systems. Their use is predicated on their ability to remain stable throughout the course of treatment in which they are needed. This has been shown to be the result of "primary stability" which is achieved through mechanical interlocking of the screw threads with the surrounding bone immediately upon placement. Therefore, evaluating …

Effect Of Toothbrush Abrasion On Frictional Resistance Of Aesthetic Orthodontic Archwires, Stephen Alexander Yamodis

UNLV Theses, Dissertations, Professional Papers, and Capstones

Fixed orthodontic appliances (braces) are one of the most widely used appliances to correct malocclusion, however many patients prefer less metal display. To meet this demand more esthetically pleasing brackets and archwires have been developed. These esthetic components are often clear, white or tooth colored. Coatings of various types are commonly used to produce an esthetic archwire. However, these coating materials tend to wear and degrade, which may cause binding and increased resistance to friction, thereby potentially reducing the efficiency of tooth movement. Therefore, in vitro testing of tooth brush abrasion on frictional resistance of various aesthetic archwires was tested. …

Fluoride Varnish May Improve White Spot Lesions, Gary L. Stafford

School of Dentistry Faculty Research and Publications

Design

A randomised, parallel-group, controlled clinical trial.

Intervention

The test group had fluoride varnish applied onto the tooth surfaces with WSLs using a miniature cotton swab or brush and advised not to brush for four hours. The control group had saline solution applied.

Outcome measure

Status of the WSLs were assessed using a DIAGNOdent pen (KaVo, Biberach, Germany).

Results

Of the 110 participants recruited, 14 dropped out between the debonding and the six-month recall visit. There were statistically significant differences between the mean DIAGNOdent readings of the two groups at the three-month (P

Conclusions

A greater decrease in DIAGNOdent pen …

A Polymerase Chain Reaction Method For The Detection Of Selenomonas Noxia, Arthuro Mehretu

UNLV Theses, Dissertations, Professional Papers, and Capstones

In recent studies, periodontal health has been linked to being overweight and/or obese. Among common oral bacteria, Selenomonas noxia has been implicated in converting periodontal health to disease. Selenomonas spp. have also been found in gastric ulcers, and were misdiagnosed as Helicobacter -like organisms, but no further studies were conducted. The increasing clinical and epidemiological importance of S. noxia necessitates the development of a rapid detection method. In this study, a TaqMan 16S rRNA based real-time Polymerase Chain Reaction (PCR) method was developed, optimized and evaluated for the rapid and specific detection of S. noxia . The 16S PCR assay …

Bacterial Adherence Of Streptococcus Mutans And Lactobacillus Acidophilus On Poly-Methyl Methacrylate And Thermoplastic Polypropene Used In Orthodontic Retention, Lindsay Ann Pfepper

UNLV Theses, Dissertations, Professional Papers, and Capstones

Retention is required in the majority of orthodontic patients throughout the remainder of their life. The two primary removable appliances are known as the traditional Hawley retainer or the vacuum formed retainer. These appliances were developed to maintain the position of the dentition without sacrificing oral health. The orthodontic population is at a higher risk for caries due to plaque accumulation from poor diet, suboptimal oral hygiene and often lack of motivation. These two retainers occupy different niches and are comprised of different materials; therefore the retainers' effect on oral health could be very different. An understanding of which bacteria …

Gingival Crevicular Fluid (Gcf) Levels Of Interleukin-6 (Il-6), Soluble Glycoprotein 130 (Sgp130), And Soluble Interleukin-6 Receptor (Sil-6r) During Orthodontic Tooth Movement, Mathue Gene Faulkner

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: Orthodontic tooth movement requires the precise coordination of a multitude of biological factors in order for proper bone remodeling to occur. Cytokines, such as Interleukin-6 (IL-6), play a critical role in the communication necessary for both bone resorption and bone apposition. IL-6 reacts with receptor proteins, such as soluble IL-6 receptor (sIL-6R), on target cells in order to transmit signals important to both osteoclast and osteoblast activities. Soluble glycoprotein 130 (sgp130), on the other hand, acts as a natural inhibitor to IL-6 activity. The purpose of this investigation was to evaluate the levels of IL-6, sIL-6R, and sgp130 …

Practicing Orthodontists' Use And Perceived Efficacy Of Self-Ligating Brackets, John-David Beuhler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction.

The purpose of this study was to compare perceptions of efficacy and efficiency of Self-Ligating Brackets vs. conventional brackets between practicing Orthodontists and Orthodontic Residents.

Methods.

Cross-sectional survey research using a three-wave emailing of addresses from the current American Association of Orthodontists directory. The directors of all orthodontic residency programs in the US were asked to also distribute to all residents. The survey included five sections: (1) respondents' experience, (2) factors that influence, (3) positive or negative factors, (4) the perceived efficiency/efficacy, and (5) demographics. A 39% response rate (N=707) was obtained.

Results.

Over half (51.8%) …

Retrospective Investigation Of Course Content Evaluation By Students: A Survey Of Domestic Violence Education And Experience Among Current Unlv-Sdm Dental Students, Rhonda J. Everett

UNLV Theses, Dissertations, Professional Papers, and Capstones

The overall purpose of this research project is to survey experience and education of current dental students regarding domestic violence. Domestic violence has been recognized as one of our nation's most serious public health issues. Domestic violence can result in physical injury, psychological trauma, and sometimes death. Dentists can act as one of the first lines of intervention in recognizing common dental and facial trauma which may be associated with domestic violence victims including: broken teeth, facial bruising, and jaw fractures.

Current data suggest that education about domestic violence can help the dental professional in overcoming some of the barriers …

Retrospective Evaluation Of Microbial Presence In Existing Saliva Repository: A Pcr Based Molecular Survey Of Oral Microbial Populations From Existing Saliva Samples, Jay Ericksen Davis

UNLV Theses, Dissertations, Professional Papers, and Capstones

The overall purpose of this research project is to explore the link between oral health and disease in the University of Nevada, Las Vegas - School of Dental Medicine (UNLV-SDM) clinic patient population. More specifically, the population of interest is the UNLV-SDM orthodontic clinic patient population, which is mostly composed of adults, females, and minorities. The University of Nevada, Las Vegas, School of Dental Medicine, with more than 70,000 active patients and a post-graduate specialty program in Orthodontics is uniquely positioned to perform this type of oral health epidemiology survey, as well as targeted oral microbial testing among populations within …

A Retrospective Review Of Clinical International Normalized Ratio Results And Their Implications, Thomas Radmer, Moawia Kassab, James Glore

Thomas W Radmer

Warfrin is a key element in therapy for atrial fibrillation, deep venous thrombosis (DVT), stroke (cerebrovascular accident and cardiac valve replacement . The authors searced 16,017 active clinical charts for active patients of record for the years 2009-2010. The authors found that 1.96 percent of total Marquette University Dental Clinic patients had a history of warfrin use. INR values for a significant number of dental patients are not within the therapeutic range for their medical conditions. The patients physcian was contacted for warfrin dose regulation prior to invasive dental procedures.

Ada News - 11/21/2011, 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.

Safe Zone For Bone Harvesting From The Interforaminal Region Of The Mandible, O. Al-Ani, P. Nambiar, K. O. Ha, W.C. Ngeow

Wei Cheong Ngeow

Aims: The mandibular incisive nerve can be subjected to iatrogenic injury during bone graft harvesting. Using cone beam computed tomography (CBCT), this study aims to determine a safe zone for bone graft harvesting that avoids injuring this nerve. Methods: Sixty CBCT examinations of patients were included in this study. The examinations were taken using the i-CAT CBCT imaging system, applying a standardized exposure protocol. Image reconstruction from the raw data was performed using the SimPlant dental implant software. The distances of mandibular incisive canal (MIC) to the inferior border and the labial and lingual cortices of the mandible were measured …

Ada News - 11/07/2011, 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.

Human Platelet Lysate Permits Scale-Up Of Dental Pulp Stromal Cells For Clinical Applications, Govindasamy Vijayendran, Ronald Veronica Sainik, Abdullah Aimi Naim, Nathan Kavitha R. Ganesan, Aziz Zeti Adura Che Abdul, Abdullah Mariam, Zain Rosnah, Abu Kasim Noor Hayaty, Musa Sabri, Bhonde Ramesh R.

Sabri Musa

Background aims. Dental pulp stromal cells (DPSC) are considered to be a promising source of stem cells in the field of regenerative therapy. However, the usage of DPSC in transplantation requires large-scale expansion to cater for the need for clinical quantity without compromising current good manufacturing practice (cGMP). Existing protocols for cell culturing make use of fetal bovine serum (FBS) as a nutritional supplement. Unfortunately, FBS is an undesirable additive to cells because it carries the risk of transmitting viral and prion diseases. Therefore, the present study was undertaken to examine the efficacy of human platelet lysate (HPL) as a …

Histomorphometric Changes In Repaired Mouse Sciatic Nerves Are Unaffected By The Application Of A Scar-Reducing Agent, W.C. Ngeow, S. Atkins, C. R. Morgan, A. D. Metcalfe, F. M. Boissonade, A. R. Loescher, P. P. Robinson

Wei Cheong Ngeow

Microsurgical repair of transected peripheral nerves is compromised by the formation of scar tissue and the development of a neuroma, thereby limiting the success of regeneration. The aim of this study was to quantify histomorphometrically the structural changes in neural tissue that result from repair, and determine the effect of mannose-6-phosphate (M6P), a scar-reducing agent previously shown to enhance regeneration. In anaesthetised C57-black-6 mice, the left sciatic nerve was sectioned and repaired using four epineurial sutures. Either 100 mu L of 600 mM M6P (five animals) or 100 mu L of phosphate-buffered saline (placebo controls, five animals) was injected into …

Performance Of Melamine Modified Urea-Formaldehyde Microcapsules In A Dental Host Material, Noor Hayaty Abu Kasim Abu Kasim N.H.

Noor Hayaty Abu Kasim Abu Kasim N.H.

Urea-formaldehyde (UF) microcapsules filled with dicyclopentadiene (DCPD) show potential for making self-healing dental restorative materials. To enhance the physical properties of the capsules, the urea was partially replaced with 0-5% melamine. The microcapsules were analyzed by different microscopic techniques. DSC was used to examine the capsule shell, and the core content was confirmed by (1)H NMR spectroscopy. Capsules in the range of 50-300 mu m were then embedded in a dental composite matrix consisting of bisphenol-A-glycidyl dimethacrylate (Bis-GMA) and triethylene-glycol dimethacrylate (TEGDMA). Flexural strength, microhardness, and nanoindentation hardness measurements were performed on the light-cured specimens. Optical microscopy (OM) examination showed …

Human Platelet Lysate Permits Scale-Up Of Dental Pulp Stromal Cells For Clinical Applications, Noor Hayaty Abu Kasim Abu Kasim N.H.

Noor Hayaty Abu Kasim Abu Kasim N.H.

Background aims. Dental pulp stromal cells (DPSC) are considered to be a promising source of stem cells in the field of regenerative therapy. However, the usage of DPSC in transplantation requires large-scale expansion to cater for the need for clinical quantity without compromising current good manufacturing practice (cGMP). Existing protocols for cell culturing make use of fetal bovine serum (FBS) as a nutritional supplement. Unfortunately, FBS is an undesirable additive to cells because it carries the risk of transmitting viral and prion diseases. Therefore, the present study was undertaken to examine the efficacy of human platelet lysate (HPL) as a …

Ada News - 10/17/2011, 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.

Decontamination Of Endodontic Gutta-Percha: An In-Vitro Study, Mariya Shnaydman

Master's Theses

No abstract provided.

Ada News - 10/03/2011, 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.

Loma Linda University Dentistry - Volume 22, Number 2, Loma Linda University School Of Dentistry, Michael Meharry, Sean Lee, Yiming Li

Articulator (Dentistry Journal)

Contents:

8 | What Creates Success?
14 | Spring Mend
18 | Alumni Student Convention
30 | Student Research Success
35 | Commencement 55
38 | Quest for Whiter Teeth
61 | Ellis Jones: Cartoonist Emritus

Development Of Craniofacial Implants Produced By Metal Injection Molding Of Titanium Alloy Using Novel Binder System Based On Palm Oil, Noor Hayaty Abu Kasim Abu Kasim N.H.

Noor Hayaty Abu Kasim Abu Kasim N.H.

Metal Injection Molding (MIM) is a cost-effective technique for producing small, complex, precision parts in high volumes. MIM consists of four main processing steps: mixing, injection molding, debinding and sintering. In the mixing step, the powder titanium alloy (Ti6Al4V) medical grade is mixed with a binder system based on palm stearin to form a homogeneous feedstock. The rheological studies of the feedstock have been determined properly in order to success during injection into injection molding machine. After molding, the binder holds the particles in place. The binder systems then have to be removed completely through debinding step. Any contamination of …

A Preliminary Study Of Staff Meetings As Viewed By Dental Hygienists, David G. Dunning, Patrick Anderson, Daniel Ellingson

Journal Articles: College of Dentistry

Staff meetings in general dental practices represent what is believed to be a key management strategy to build teams and to enhance ef-ficiency and effectiveness. However, very little research has been done regarding staff meetings in dental offices. This study examined staff meetings from the viewpoint of dental hygienists who grow in unique careers in that they work largely independently of the dentist and yet typically within a dental practice while providing patient care and education. One-hundred-six dental hygienists completed a sur- vey about staff meetings in dental offices. Key findings include: only approximately 43% of dental offices conduct morning …

Introduction To The Special Issue On Practice Management, David G. Dunning

Journal Articles: College of Dentistry

No abstract provided.

Dental Service-Learning Curriculum And Community Outreach Programs Perception Vs. Practice, Barbara Gaeth

Professional Projects

The purpose of this study is to determine if the service-learning aspect of Marquette’s dental education enhances the dental students’ knowledge of the barriers to access to dental care for underserved populations. The goal of this study is to obtain feedback about service-learning in the MUSoD curriculum and disseminate the findings to others who teach service-learning in dental school curricula. MUSoD students have the opportunity to participate in multiple diverse outreach experiences throughout their four years of Dental School. Their attitudes toward service experiences and their perception of service-learning curriculum before and after they perform rotations will be recorded. Volunteers …

Presence Of Porphyromonas Gingivalis In Gingival Squamous Cell Carcinoma, J. Katz, M. Onate, Kaleb M. Pauley, I Bhattacharyya, S. Cha

Science and Mathematics Faculty Publications

Periodontal disease has been recently linked to a variety of systemic conditions such as diabetes, cardiovascular disease, preterm delivery, and oral cancer. The most common bacteria associated with periodontal disease, Porphyromonas gingivalis (P. gingivalis) has not yet been studied in the malignant gingival tissues. The objective of this study was to investigate the presence of P. gingivalis in specimens from squamous cell carcinoma patients. We have performed immunohistochemical staining to investigate the presence of P. gingivalis and Streptococcus gordonii (S. gordonii), a non invasive oral bacteria, in paraffin embedded samples of gingival squamous cell carcinoma (n=10) and …

Radiodensitometric Evaluation Of The Effect Of Low Energy Laser Irradiation With And Without Anioxidant Therapy On Immediately Loaded Implant Supported Overdenture, Fardos N. Rizk, Mouchira Salah Eldin Prof.

Dentistry

objective: The purpose of this study is to compare the bone height and density around immediately loaded implants placed in the canine area supporting a mandibular overdenture in four different groups. The first group received low level laser therapy and antioxidants. The second group received antioxidants only. The third group received low level laser therapy only. The fourth group (control group) received no therapy. materials and methods: Following one stage surgical protocol twenty four implants were inserted bilaterally in the canine region to support mandibular overdentures for twelve completely edentulous patients in the form of two implants per patient. Patients …

Epithelial Interleukin-8 Responses To Oral Bacterial Biofilms, Rebecca Peyyala, Sreenatha S. Kirakodu, Lucia Novakova, Jeffrey L. Ebersole

Center for Oral Health Research Faculty Publications

An in vitro model of bacterial biofilms on rigid gas-permeable contact lenses (RGPLs) was developed to challenge oral epithelial cells. This novel model provided seminal data on oral biofilm-host cell interactions, and with selected bacteria, the biofilms were more effective than their planktonic counterparts at stimulating host cell responses.

Ethics And The 'Seasons Of My Life' As A Dental Educator, David A. Nash

Oral Health Science Faculty Publications

Perhaps the first comprehensive ethics program in American dental schools was created in 1990 at the University of Kentucky by then dean David Nash. Nash recounts the emergence of his personal and professional interest in ethics using the structure of Daniel Levinson's book The Seasons of a Man's Life. Each season brings tasks of evolving and deepening ethical engagement. Being ethical is important; helping others to be so is special. Nash still teaches the course.