Dentistry Commons^™

Ricketts Analysis Using Conventional And Dolphintm Generated Cbct Lateral Cephs, Yeganeh Parhizkar Jewell

Loma Linda University Electronic Theses, Dissertations & Projects

Purpose: The aim of this study was to evaluate the difference between Ricketts analysis measurements made on Sirona Orthophos XG Plus (Sirona Dental Systems, Charlotte,NC) lateral cephalograms, and DolphinTM generated perspective and orthogonal lateral cephalograms from CBCT (NewTom 5G; QR srl, Verona, Italy). Materials and Methods: A Sirona digital lateral cephalogram and DophinTM synthesized CBCT lateral cephalograms of a radiographic phantom in orthogonal and perspective projections were created. Horizontal and vertical measurements were made in multiple planes on the radiographic phantom to compare each imaging modality. Twenty-five lateral cephalometric radiographs were selected retrospectively from the records of patients of …

Ada News - 08/22/2016, 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.

Local Minocycline To Reduce Future Inflammation And Bone Loss In Periodontal Maintenance Patients, Jeffery S. Jensen

Theses & Dissertations

The objectives of this study were to compare the effect of SRP+MM versus SRP alone on inflammatory cytokines, interleukin (IL)-1β and IL-1 receptor antagonist (ra), found in gingival crevicular fluid (GCF) and saliva, and correlate IL-1 values with clinical outcomes over a 2-year period of PMT. Fifty-five patients with an initial posterior pocket ≥5 mm and history of bleeding on probing (BOP) were randomized to test (SRP+MM, n=27) and control (SRP, n=28) groups. Clinical measurements and GCF samples were done at baseline and 24 months. SRP+MM or SRP were provided at 6-month intervals. IL-1β and IL-1ra were measured in GCF …

Flexural Strength Of Nano-Hybrid Resin Composite As A Function Of Light Attenuation Distance And Specimen Dimension, Farid Sabry El-Askary Pro. Dr., Sara Adel Botros Dr., Mohamed Salah Abdelaziz Nassif Pro. Dr., Mutlu Özcan Prof. Dr.

Dentistry

This study evaluated ascending order of light attenuation distance (0, 2, 4, 8 mm) and specimen dimensions (2 × 2 × 10, 2 × 2 × 12, 2 × 2 × 15 mm3) differing from requirements of ISO 4049 (2 × 2 × 25 mm3) on the flexural strength of nano-hybrid resin composite. Specimens (N = 160) were prepared accordingly and randomly assigned into groups for the factors studied. Specimens were photo-polymerized from increased distances through 1, 2, 3 and 5 overlapping cycles depending on the specimen length after which they were subjected to three-point bending test (0.5 mm/min). …

Get In The Zone: A Survey Of Dental Professionals' Knowledge Of Ozone Therapy, Emily Hannah

Mahurin Honors College Capstone Experience/Thesis Projects

Ozone therapy has been used in medicine for many years to treat a variety of ailments. Ozone is an unstable triatomic molecule made up of three oxygen atoms. This molecule has the ability to kill bacteria, fungi, parasites, and viruses. The researcher first was curious if there has been research done on uses of Ozone Therapy in the dental setting. After reviewing the literature there is indeed a use for Ozone Therapy to treat a host of dental problems including periodontal disease, ulcers, and carious lesions (also known as cavities). However, there are conflicting conclusions in the literature as to …

Ada News - 08/08/2016, 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.

Managing Peri-Implantitis, Namita Khandelwal

Dental Medicine Faculty Publications

This guide, used by MetLife for its dental continuing education program, focuses on the inflammatory pathology around dental implants. It outlines the risk factors and diagnostic criteria for peri-implantitis, an inflammatory process resulting in progressive loss of bone around the implant. The guide also provides treatment approaches for peri-implantitis, including surgical and non-surgical options.

Trident - August 2016, Dugoni School Of Dentistry

Trident

The newsletter of the Pacific Orthodontic Alumni Chapter at University of the Pacific, Arthur A. Dugoni School of Dentistry.

Integration Of Basic And Clinical Sciences In Health Professions Education, Waeil Elmisalati, Vidushi Gupta, Cha Vu, Colleen Ahern, Priya Katwala, Aparna Bhat, Nader Burpee, Alivia Shasteen

Dental Medicine Faculty Publications

Part of the Journal of Dental Education's series “Peer Education: Reviews of the Literature,” this manuscript details different aspects of the vertical integration technique of incorporating didactic knowledge into a clinical setting within dental education.

Contact Point, Arthur A. Dugoni School Of Dentistry

Contact Point

No abstract provided.

Purinergic Signaling During Porphyromonas Gingivalis Infection, C. Silva, A. C. Morandini, David M. Ojcius, R. Coutinho-Silva,

All Dugoni School of Dentistry Faculty Articles

Despite recent advances unraveling mechanisms of host–pathogen interactions in innate immunity, the participation of purinergic signaling in infection-driven inflammation remains an emerging research field with many unanswered questions. As one of the most-studied oral pathogens, Porphyromonas gingivalis is considered as a keystone pathogen with a central role in development of periodontal disease. This pathogen needs to evade immune-mediated defense mechanisms and tolerate inflammation in order to survive in the host. In this review, we summarize evidence showing that purinergic signaling modulates P. gingivalis survival and cellular immune responses, and discuss the role played by inflammasome activation and cell death during …

Peptoanaerobacter Stomatis Interactions With Neutrophils., Emeri Jimenez Flores

Electronic Theses and Dissertations

Peptoanaerobacter stomatis is a newly appreciated taxon, present in high numbers in oral biofilms from periodontal patients. However, little is known about this organism’s potential virulence and its interaction with the host immune response. Therefore, to better understand the role of P. stomatis in periodontitis, we studied its interactions with neutrophils. Human neutrophils were challenged with P. stomatis strain CM2 or S. aureus AF488 (positive control) for 30 min. Bacterial internalization was examined by ImageStreamX imaging flow cytometry. Bacterial viability was assessed by colony-forming unit assays and Baclight assays. Phagocytosis-stimulated respiratory burst response was measured by flow cytometry. The fusion …

Characterization Of Pg1604 (Porz) As An Essential Component Of Type 9 Secretion System In Porphyromonas Gingivalis., Apurva Tadimari Prabhakar

Electronic Theses and Dissertations

Background: The numerous virulence factors of Porphyromonas gingivalis are essential for the organism to invade host tissues while escaping immune responses [1, 2]. Some of these factors, like major proteases referred to as gingipains, are secreted by a unique secretion system called PerioGate or Type IX Secretion System (T9SS). T9SS consists of a number of membrane and periplasmic proteins, which provide transportation only for proteins that possess a conserved C-terminal domain (CTD). The CTD functions as a specific recognition signal for the T9SS. PG1604 of P. gingivalis W83 is a CTD-containing protein, which has been shown in our initial studies …

Professional Product Review Vol. 11 No. 1, American Dental Association, Council On Scientific Affairs

Professional Product Review

A user-friendly newsletter from the ADA Council on Scientific Affairs offering scientifically sound, unbiased, and clinically relevant information to member dentists about professional dental products tested by the ADA. This collection is historical and may not reflect current standards. For up-to-date information contact the ADA.

Dental Applications Of Natural-Origin Polymers In Hard And Soft Tissue Engineering, Hossein E. Jazayeri, Mina D. Fahmy, Mehdi Razavi, Brett E. Stein, Aatif Nowman, Radi Masri, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Clinical advances in the treatment of dentoalveolar defects continue to evolve with the introduction of new innovations in regenerative medicine and tissue bioengineering. Recent developments in tissue engineering are aimed at safely and effectively regenerating a damaged or necrotic area by replenishing its cells and increasing surrounding gene expression. Various techniques have successfully given rise to porous scaffolds being used by clinicians to treat the defect and initiate the repair process. Tissue reconstruction using bioengineered scaffolds is advantageous over traditional autografting, since it prevents the instigation of pain and donor site morbidity while ultimately creating both the environment and machinery …

The Advanced Dental Hygiene Practitioner: An Exploration Of The Patient Perspective Regarding The Advancement Of A Mid-Level Dental Provider, Jacqueline M. Burgess

Electronic Theses and Dissertations

The purpose of this study was to examine patient attitudes and opinions regarding the advancement of a mid-level dental provider, such as the ADHP, in an effort to better understand the perceptions of those who may one day be in a position to receive care from this type of provider. In this quantitative study, I analyzed the differences between those with and without access to dental care and evaluated differences among respondents based upon their socioeconomic and demographic attributes. I collected data from patients treated at Mt. Juliet Family & Cosmetic Dentistry and at the Coweta Samaritan Clinic via a …

Accuracy And Precision Of Occlusal Contacts Of Stereolithographic Casts Mounted By Digital Interocclusal Registrations, Jason T. Krahenbuhl, Seok-Hwan Cho, Jon Patrick Irelan, Naveen K. Bansal

Mathematics, Statistics and Computer Science Faculty Research and Publications

Statement of problem

Little peer-reviewed information is available regarding the accuracy and precision of the occlusal contact reproduction of digitally mounted stereolithographic casts.

Purpose

The purpose of this in vitro study was to evaluate the accuracy and precision of occlusal contacts among stereolithographic casts mounted by digital occlusal registrations.

Material and methods

Four complete anatomic dentoforms were arbitrarily mounted on a semi-adjustable articulator in maximal intercuspal position and served as the 4 different simulated patients (SP). A total of 60 digital impressions and digital interocclusal registrations were made with a digital intraoral scanner to fabricate 15 sets of mounted stereolithographic …

Mechanical Properties Of Natural Chitosan/Hydroxyapatite/Magnetite Nanocomposites For Tissue Engineering Applications, Fatemeh Heidari, Mehdi Razavi, Mohammad E. Bahrololoom, Reza Bazargan-Lari, Daryoosh Vashaee, Hari Kotturi, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Chitosan (CS), hydroxyapatite (HA), and magnetite (Fe₃O₄) have been broadly employed for bone treatment applications. Having a hybrid biomaterial composed of the aforementioned constituents not only accumulates the useful characteristics of each component, but also provides outstanding composite properties. In the present research, mechanical properties of pure CS, CS/HA, CS/HA/magnetite, and CS/magnetite were evaluated by the measurements of bending strength, elastic modulus, compressive strength and hardness values. Moreover, the morphology of the bending fracture surfaces were characterized using a scanning electron microscope (SEM) and an image analyzer. Studies were also conducted to examine the biological response …

Transcriptome Analysis Of B Cell Immune Functions In Periodontitis: Mucosal Tissue Responses To The Oral Microbiome In Aging, Jeffrey L. Ebersole, Sreenatha S. Kirakodu, Michael John Novak, Luis Orraca, Janis Gonzalez-Martinez, Larry Cunningham Jr., Mark V. Thomas, Arnold J. Stromberg, Subramanya N. Pandruvada, Octavio A. Gonzalez

Center for Oral Health Research Faculty Publications

Evidence has shown activation of T and B cells in gingival tissues in experimental models and in humans diagnosed with periodontitis. The results of this adaptive immune response are noted both locally and systemically with antigenic specificity for an array of oral bacteria, including periodontopathic species, e.g., Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans. It has been recognized through epidemiological studies and clinical observations that the prevalence of periodontitis increases with age. This report describes our studies evaluating gingival tissue transcriptomes in humans and specifically exploiting the use of a non-human primate model of naturally occurring periodontitis to delineate gingival mucosal …

Ada News - 07/11/2016, 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.

Lasting Impression, Summer 2016, College Of Dental Medicine

Newsletters

No abstract provided.

Dental Practice Success Vol. 3 No. 2, American Dental Association, Publishing Division

Dental Practice Success

No abstract provided.

Comparison Of The Transformation Temperatures Of Heat-Activated Nickel-Titanium Orthodontic Archwires By Two Different Techniques, Noor Aminah Obaisi, Maria Therese S. Galang-Boquieren, Carla A. Evans, Tzong Guang Peter Tsay, Grace Viana, David W. Berzins, Spiro Megremis

School of Dentistry Faculty Research and Publications

Objectives

The purpose of this study was to investigate the suitability of the Bend and Free Recovery (BFR) method as a standard test method to determine the transformation temperatures of heat-activated Ni-Ti orthodontic archwires. This was done by determining the transformation temperatures of two brands of heat-activated Ni-Ti orthodontic archwires using the both the BFR method and the standard method of Differential Scanning Calorimetry (DSC). The values obtained from the two methods were compared with each other and to the manufacturer-listed values.

Methods

Forty heat-activated Ni-Ti archwires from both Rocky Mountain Orthodontics (RMO) and Opal Orthodontics (Opal) were tested using …

J Am Coll Dent 2016 83 3

Journal of the American College of Dentists

The Journal of the American College of Dentists (JACD) publishes scholarly articles, editorials, essays, and reflections addressing the ethical, professional, and social dimensions of dentistry. The Journal serves as a forum for advancing ethics, professionalism, leadership, and excellence within the dental community. By fostering dialogue across disciplines and perspectives, JACD provides readers with insights that encourage ethical, professional practice, lifelong learning, and service to the public, reinforcing dentistry’s commitment to advancing oral healthcare and the common good.

Thermal Properties Of Copper Nickel-Titanium Orthodontic Archwires, Joshua Gilbert

Master's Theses (2009 -)

Introduction: Copper Nickel-Titanium (CuNiTi) is a relatively new composition of Nickel-Titanium (NiTi) archwires that was originally patented in 1991 as part of the Ormco line of wires. The patent has now recently expired and many other orthodontic companies are making their own CuNiTi wires. Advertisement claims have focused on the laboratory benefits of adding Copper (Cu) to the NiTi, however few independent laboratory testings have been conducted on these new wires to verify claims. The purpose of this study was to conduct thermal analysis of CuNiTi for all currently available wires in two Austenite Finish (Af) variants and two commonly …

Effect Of Two Different Maxillary Treatment Options On Supporting Structures Of Mini Implant Retained Mandibular Overdenture, Fardos N. Rizk

Dentistry

Objectives: This study was conducted to evaluate whether maxillary conventional complete denture or narrow diameter implant retained maxillary overdenture is more compatible on opposing crestal bone height surrounding mini implants retaining mandibular overdenture. Materials and Methods: Fourteen male completely edentulous patients received mandibular overdentures retained by four one piece mini implants with ERA attachments placed anterior to the mental foramen. Patients were randomly divided into two groups: Group I received opposing maxillary conventional complete denture and Group II received opposing maxillary overdenture retained by four one piece narrow diameter implants with ball attachments placed in the anterior maxilla. Once patients …

Mechanical Properties Of Copper-Nickel-Titanium Archwires, Margaret Amelia Rosen

Master's Theses (2009 -)

Introduction: The initial phase of orthodontic therapy relies on flexible wires, usually composed of a nickel-titanium alloy, to apply a substantially constant load during tooth movement. Copper has been added to nickel-titanium archwires, resulting in an alloy with potential clinical advantages such as a lower stress hysteresis. Many orthodontic companies claim that their copper-nickel-titanium manufacturing process allows for the production of more consistent transition temperatures in the wires, allowing the orthodontist to customize treatment to various patients based on the force level needed. There are currently many manufacturers of these wires, creating a wide range of copper-nickel-titanium archwires from which …

The Effect Of Orthodontic Appliances On The Evaluation Of The Professionalism And Esthetics Of An Adult Employee, Laura Hanson Vaccariello

Master's Theses (2009 -)

This study explored the influence of fixed and removable orthodontic appliances on participants’ ratings of the job performance, intelligence, and attractiveness of an adult female. Ninety-four adult subjects were recruited from the Graduate School of Management at Marquette University. Each subject received an identical employee performance review with an attached photograph of a female employee. The smile of the photo was manipulated to represent one of four conditions: no orthodontic appliance, a metal orthodontic appliance, a ceramic orthodontic appliance, or a clear aligner. Subjects then rated the employee on three continuous Likert scales. Ratings of job performance, intelligence, and attractiveness …

The Effects Of Mechanical Vibration On Human Chondrocytes In Vitro, Bradley J. Gauthier

Master's Theses (2009 -)

Introduction: Inflammation is the biological basis of temporomandibular joint disorders (TMD), when severe it can lead to osteoarthritis. One of the physical therapies used to manage this condition is mechanical vibration, as has been used in medicine for many years as a non-pharmacological therapy. Recently an FDA approved dental device called AcceleDent has been introduced to increase the rate of tooth movement and decrease pain. As the device-generated vibration transmits to the TMJ, it is important for us to investigate whether mechanical vibration influences TMJ on its biologic basis – chondrocytes under normal and inflammatory conditions. Materials and Methods: Human …

The Effect Of Mechanical Vibration On Human Pdl Cell Differentiation And Response To Inflammation, Megan Desroches

Master's Theses (2009 -)

Low magnitude mechanical vibration is a therapeutic adjunct being investigated to alter bone remodeling and inflammation in areas such as osteoporosis, bone fracture healing, and muscle soreness after exercise. In orthodontics a device named AcceleDent has been marketed that claims to increase the rate of tooth movement and decrease pain. However evidence for these claims is lacking. In this study we looked at two potential cellular mechanisms for these claims: periodontal ligament (PDL) cell differentiation and inflammation under an orthodontic model of strain (IL-1β). Increased PDL cell differentiation into osteogenic cells could be an avenue of increasing orthodontic tooth movement. …