Dentistry Commons^™

Light Transmitting Fiber Posts - An In Vitro Evaluation., Antigoni Stylianou

All ETDs from UAB

Objectives: The primary purpose of this study is to measure and compare the light transmission, radiopacity and microscopic structure of a new fiber optic post compared to a clinically successful fiber post. Materials and Methods: A. The radiopacity of seven posts was evaluated in terms of average intensity values calculated in histograms produced by computer-based software. B. The two types of fiber posts were examined by scanning electron microscopy (SEM) and evaluated by computer-assisted image analysis. C. Two experimental groups with sample size n=12 included the D.T. Light posts and iLumi Fiber Optic posts. Two aluminum assemblies forming two cylindrical …

The Accuracy Of A Clinician's Assessment Of Insertion Torque At Implant Placement, Britany Fabian Matin

All ETDs from UAB

Background: Primary implant stability contributes to the success of dental implant placement and affects long-term function. Factors that contribute to the primary stability and osseointegration of a dental implant include the quality and quantity of bone present at the site of placement as well as the shape and surface treatment of the implants. There are numerous methods that assist the clinician in determining implant stability during placement and to confirm osseointegration after a period of healing. Their reliability to predict implant success, however, has not been proven. Torque measurements acquired during implant placement have been used as a method for …

J Am Coll Dent 2015 82 1

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.

Interdisciplinary Collaboration With Music Therapy During Routine Pediatric Dental Procedures, Austin S. Robinson

Theses and Dissertations--Music

The incorporation of integrative medicine into traditional treatment options has steadily increased during the past two decades. This has resulted in a change in the dynamics of interdisciplinary teams creating the need to better understand the roles and responsibilities of team members. The purpose of this study was to examine the perceptions of dental treatment team members regarding the role and responsibilities of music therapy during treatment.

A total of 10 participants were included in this study. Participants completed a pre-music therapy survey to establish prior knowledge, experience with, and perceptions of music therapy. Following an experiential intervention, participants completed …

Immunohistochemical Assessment Of Cytokeratin 17 And Epcam Expression In Different Grades Of Oral Squamous Cell Carcinoma, Safaa El-Baz, Iman Helmy, Mohamed Hosam El Mallahy

Dentistry

Oral squamous cell carcinoma (OSCC), one of the most common malignancies in the head and neck region, is graded based on Broder’s classification into well-differentiated, moderately, and poorly differentiated. Cytokeratin 17 (K17, CK17) is an acid-type I cytokeratin with a low-molecular weight of 48.1 kDa. Epithelial cell adhesion molecule (EpCAM) is a hemophilic Ca2+ independent adhesion molecule. This study used an immunohistochemical technique (IHC) to examine the expression of CK17 and EpCAM in thirty-two specimens of OSCC (comprising 13 well-, 9 moderately, and 10 poorly differentiated cases), and 2 specimens of normal oral mucosa, used as control. It was found …

The Use Of Immersive Visualization For The Control Of Dental Anxiety During Oral Debridement, Carmelo Padrino-Barrios, Gayle B. Mccombs, Norou Diawara, Gianluca De Leo

Dental Hygiene Faculty Publications

Purpose: The purpose of this study was to evaluate the effects of Immersive Visualization (IV) eyewear on anxious, adult patients during oral debridement.

Methods: Thirty adult volunteers (n=23 females n=7 males) were enrolled in the study. Participants were required to be 18 years or older, exhibit at least moderate anxiety (score 9 or higher) on the Corah's Dental Anxiety Scale-Revised (DAS-R), and be generally healthy. Individuals were excluded from participation if they presented with severe dental calculus, periodontal disease, or dental caries, were taking psychotropic drugs, had a history of convulsive disorders, vertigo, or equilibrium disorders, or required antibiotic premedication. …

Mass Fatality Incidents And The Role Of The Dental Hygienist: Are We Prepared?, Tara L. Newcomb, Ann M. Bruhn, Bridget Giles

Dental Hygiene Faculty Publications

Dental hygienists can fill critical roles during mass fatality incidents in the area of disaster victim identification, providing much needed support to forensic odontologists. The purpose of this paper is to bring awareness that research is needed to assess current dental hygiene programs, continuing education opportunities and the type of approach being used to develop and implement pedagogy in the forensic specialty area, specifically mass fatality preparedness and response for the dental hygienist. Because of the threat of terrorism in the U.S. and natural disasters like hurricanes, the need to prepare dental professionals in disaster response and fatality management is …

Immunohistochemical Expression Of Matrix Metalloprotease-2 And Matrix Metalloprotease-9 In The Disks Of Patients With Temporomandibular Joint Dysfunction, Luis Eduardo Almeida, Karina Caporal, Viviane Ambros, Marina Azevedo, Lucia Noronha, Rosy Leonardi, Paula C. Trevilatto

School of Dentistry Faculty Research and Publications

Purpose

Matrix metalloproteases (MMPs) are tissue-remodeling enzymes that function during the remodeling process, such as in immune-inflammatory diseases. Metalloprotease-2 (MMP-2) and metalloprotease-9 (MMP-9) are gelatinases that degrade several types of extracellular matrix collagen. It is hypothesized that in temporomandibular joint (TMJ) dysfunction, MMP-2 and MMP-9 expression levels may be elevated. Therefore, the objective of this study is to determine the association of MMP-2 and MMP-9 expression with temporomandibular joint dysfunction using an immunohistochemical approach to evaluate the joint disk.

Material and Methods

A total of 45 human temporomandibular joint samples were collected, with 36 samples in the test group (patients …

Virginia Dental Journal (Vol. 92, No. 3 [I.E. 2], 2015)

Virginia Dental Journal

No abstract provided.

The Prevalence, Predictive Factors, And Classification Of Intrapulpal Cracks In Maxillary Premolars Requiring Endodontic Treatment, Sarah Krygowski

Theses and Dissertations

Cracked teeth may be difficult to diagnose. Craze lines rarely become symptomatic or require treatment. Cracks in the enamel and dentin alone may or may not become symptomatic and require restorative treatment. However, cracks extending into the enamel, dentin, and pulp chamber provide an avenue for bacteria to establish infection and this commonly results in symptoms and the need for endodontic and restorative treatment. The published endodontic literature has limited information regarding the prevalence or predictive factors for cracks extending into the pulp chamber of teeth. The purpose of this study was to determine the prevalence and classification of intrapulpal …

Functional Local Renin-Angiotensin System In Human And Rat Periodontal Tissue, Carlos Ferreira Santos, Ana Carolina Morandini, Thiago José Dionísio, Flávio A. Faria, Marta C. Lima, Caio M. Figueiredo, Bella L. Colombini-Ishikiriama, Carla Renata Sipert, Rubens P. Maciel, Ana P. Akashi, Gabriela P. Souza, Gustavo P. Garlet, Camila O. Rodini, Sandra L. Amaral, Christiane Becari, Maria C. Salgado, Eduardo B. Oliveira, Isaac Matus, Daniela N. Didier, Andrew S. Greene

All Dugoni School of Dentistry Faculty Articles

The initiation or progression of periodontitis might involve a local renin-angiotensin system (RAS) in periodontal tissue. The aim of this study was to further characterize the local RAS in human and rat periodontal tissues between healthy and periodontally-affected tissue. Components of the RAS were investigated using in vitro, ex vivo and in vivo experiments involving both human and Wistar rat periodontium. Although not upregulated when challenged with P. gingivalis-lipopolysaccharide, human gingival and periodontal ligament fibroblasts expressed RAS components. Likewise, healthy and inflamed human gingiva expressed RAS components, some of which were shown to be functional, yet no differences in expression …

Lowering The Number Of False Positive Responses To Electric Pulp Tests By Qualifying Patient Response, Katherine Js Lee

Theses and Dissertations

The electric pulp test (EPT) has been shown to be a valuable tool in assessing pulp vitality. One of its drawbacks, however, is its high number of false positives. The purpose of this study was to determine if qualifying the type of sensation elicited by the test could lower the percentage of false positive responses. A retrospective chart review of an eleven-month period was conducted, examining all patients with necrotic teeth tested with the EPT. Of 189 teeth, when the patient responded to EPT at first sensation 23.3% of teeth were incorrectly identified as vital. When the patient was asked …

The Role Of Leukocyte-Platelet Rich Fibrin In Human Alveolar Ridge Preservation: A Randomized Clinical Trial, Thomas F. Glazier, Thomas C. Waldrop, John C. Gunsolley, Robert Sabatini

Theses and Dissertations

PURPOSE: The aim of this study is to examine the healing of intact extraction sockets grafted with leukocyte-platelet rich fibrin (L-PRF) as compared to sockets grafted with freeze-dried bone allograft (FDBA) and a resorbable collagen barrier membrane (RCM).

METHODS: This prospective randomized, examiner blinded pilot study included 17 subjects randomized to two treatment groups. Serum total cholesterol, low density lipoprotein (LDL), 25-hydroxyvitamin-D₃, and platelet counts were determined preoperatively in all subjects. The experimental arm consisted of 8 posterior tooth-bounded intact extraction sites receiving L-PRF plugs. The control group consisted of 9 posterior tooth-bounded intact extraction sites receiving FDBA …

Are Pulp Sensibility Tests Still Sensible?, Huma Farid, Farhan Raza Khan, Lubna Pasha, Muhammad Saad Shinwari

Section of Dental-Oral Maxillofacial Surgery

Background:

Electric and thermal tests are the most commonly employed methods for the diagnosis of pulp health status. The objectives of our study are to assess the validity, yield and accuracy of cold and electric pulp tests in determining pulp vitality of teeth requiring endodontic treatment.

Methods:

A cross sectional study was carried out at the Dental Clinic of Aga Khan University Hospital on 75 patients requiring endodontic treatment. Before commencement of endodontic treatment, a provisional diagnosis of pulp status was made using an electric pulp tester and cold test. The tooth was then labelled as either vital or necrotic. …

Exploring The Risk Factors That Influence The Parental Dental Deferment Decision, Megan White

Walden Dissertations and Doctoral Studies

When caregivers defer their personal routine dental care (RDC) in order to provide RDC for their children, they risk detrimental consequences in their personal health and the health of their children. The purpose of this qualitative case study was to identify the risk factors that led to the parental dental deferment decision. The oral health and personal care services conceptual models guided the development of the research questions, facilitated the selection of risk factors on the decision-making process, and provided the basis for the data analysis thematic categories. Ten caregivers who made the decision to defer their personal RDC for …

Performance Of Dental Hygiene Students In Mass Fatality Training And Radiographic Imaging Of Dental Remains, Tara L. Newcomb, Ann M. Bruhn, Loreta H. Ulmer, Norou Diawara

Dental Hygiene Faculty Publications

Purpose: Mass fatality incidents can overwhelm local, state and national resources quickly. Dental hygienists are widely distributed and have the potential to increase response teams' capacity. However, appropriate training is required. The literature is void of addressing this type of training for dental hygienists and scant in dentistry. Hence, the purpose of this study was to assess one facet of such training: Whether the use of multimedia is likely to enhance educational outcomes related to mass fatality training.

Methods: A randomized, double-blind, pre- and post-test design was used to evaluate the effectiveness of comparable educational modules for 2 groups: a …

A Study Of The Relationship Between Nasion Perpendicular And The True Vertical Line, Jeffrey Shelley

All ETDs from UAB

A STUDY OF THE RELATIONSHIP BETWEEN NASION PERPENDICULAR AND THE TRUE VERTICAL LINE JEFFREY ALBERT SHELLEY JR. DEPARTMENT OF ORTHODONTICS ABSTRACT The purpose of this study is to assess the relationship between Nasion perpendicular and the true vertical line between patient groups using cephalometric analysis. Materials and Methods: Ninety-six adolescent patients comprised the sample for this study. Subjects were between 10 and 18 years old, with no major craniofacial deformity. Three groups of patients were divided in to three groups (Class I, Class II and Class III) based on their skeletal antero-posterior relationship. Pre-treatment lateral cephalometric radiographs were taken with …

Translucency, Stain Resistance And Hardness Of Composites Used For Invisalign Attachments, Katelyn Bowman Feinberg

All ETDs from UAB

The purpose of this study is to compare the translucency parameter, stain resistance and hardness of dental restorative composites and orthodontic adhesives in order to determine an ideal esthetic attachment material for Invisalign® treatment. Materials and Methods: Two dental restorative composites (Filtek™ Supreme Ultra, Tetric EvoCeram®) and three orthodontic adhesives (L.C.R.™, Transbond™ XT, Phase II® Dual Cure) were used in this in-vitro study. 2.0 mm thick samples of each material were fabricated in silicone molds covered with a flat sheet of Invisalign attachment template material. To evaluate the translucency parameter and stain resistance, initial L*a*b* values of each material were …

Three-Dimensional Soft Tissue Analysis Of Facial Morphology Of A Colombian Population Compared To Adult Caucasians, Sonia Bravo-Hammett

All ETDs from UAB

Aim: The purpose of this study is to describe the facial morphology of a Colombian population with three-dimensional imaging; and comparing their facial morphology with the Caucasian to create a database for this ethnicity. Materials and Methods: The study included 170 subjects selected from the Valle University in Cali-Colombia; and 1346 Caucasian subjects selected from the Face-Base Data funded by the National Institute of Dental and Craniofacial Research. All images were taken on Natural Head Position and captured using a stereo-photogrammetric camera system (3dMDfaceTM); to obtain a three dimensional image of each patient. The subjects were between 19 to 31 …

Preparation Of Zirconia For Bonding Following Salivary Contamination, Pattarika Angkasith

All ETDs from UAB

Purpose: To determine the best method of cleaning saliva-contaminated zirconia in order to regain its bond strength. Methods: Flat blocks of zirconia were particle-abraded with aluminum oxide and divided into eight groups (n=10). Groups 1-5 were first treated with 1 coat of an MDP-primer (Z-Prime Plus, Bisco) and groups 5-8 were left untreated. All specimens were contaminated with human saliva for 3 minutes other than the control (group 1). The specimens were then cleaned by rinsing with water for 20 sec (groups 2 and 5), cleaning with 35% phosphoric acid for 20 sec and rinsing (group 3 and 6), cleaning …