Dentistry Commons^™

The History Of The Dental Profession - From Ancient Origins To Modern Day, Steven A. Kezian

Pacific Journal of Health

Abstract:

This research paper explores some of the earliest known evidences of dental treatment and traveled through time discussing important figures who made vital contributions toward the development of this profession.

Dentistry is one of the oldest professions to be developed. Ever since there have been humans, there have been problems with our teeth, and we have been figuring out ways to alleviate them. The idea that there were people specializing in the healing of the teeth and oral diseases has roots to ancient pre-history and a long and fascinating saga.

This history is divided into five stages:

-Ancient pre-history …

Commentary: Phytocannabinoids As Therapeutic Agents To Combat Chronic Gingival Disease., Nick Narek Ohanian

Pacific Journal of Health

The therapeutic potential of cannabis has been harnessed for thousands of years yet the United States Food and Drug Administration (FDA) has still not approved cannabis as a safe or effective drug. The FDA has, however, approved the manufacturing of pharmaceutical drugs, which contain a “synthetic version of a substance that is present in the marijuana” and other compounds that mimic its action. A search of the US National Library of Medicine and National Institute of Health for keywords “CBD” and “Periodontitis” together yields only 2 publications. Although the current State and Federal regulations on the use of cannabis for …

A Nondestructive Procedure For The Extraction Of Dna From Human Teeth, Mark Reliquias, Ann-Elodie Black

Honors Theses

This research focuses on constructing a procedure that allows for the nondestructive extraction of mtDNA from teeth for forensic DNA analysis. Currently, only a destructive method for extracting DNA from teeth is used in the forensic laboratory to identify an individual. A disadvantage of extracting DNA through a destructive method is the complete or partial loss of the tooth. To extract DNA through a destructive method, the tooth must either be cut horizontally or vertically to access the pulp, or the root ground into a powder to extract DNA from the dentine-cementum. With the destruction of the tooth, additional forensic …

Factors Which Influence The Education Of Local Anesthesia In Dental Hygiene, Angela D. Cook, Angela D. Cook

Dental Hygiene ETDs

ABSTRACT Dental hygienists, like most students, learn according to formal curriculum that is defined by goals, competencies, and required subject matter for examinations.¹ They also learn through an intense socialization process known as “the hidden curriculum”. The “hidden curriculum” is not defined in student textbooks nor classroom lectures, but is demonstrated through case studies, research, and an experience shared between colleagues.¹ The purpose of this study was to assess the determining factors that influence what dental hygiene instructors are teaching hygiene students on the use of articaine when administering dental blocks, and to assess if the “hidden curriculum” …

Analysis Of Different Characteristics Of Smile, Mehwish Khan, Syed Murtaza Raza Kazmi, Farhan Raza Khan, Imran Samejo

Section of Dental-Oral Maxillofacial Surgery

Introduction: Analysis of smile is imperative in the diagnosis and treatment planning phases of aesthetic dentistry.
Aim: To evaluate the components of smile among students of a dental institution.
Methods: Frontal view digital photographs with posed smile of 157 dental students were assessed using Adobe Photoshop7.0. Smile characteristics evaluated included; smile line, smile arc, smile design, upper lip curvature, labiodental relationship and number of teeth displayed. Data were analyzed using SPSS version 23.0. Pearson chi-square test was used to determine the gender based differences for various parameters.
Results: Average smile line (43.3%), consonant smile arcs (45.2%), cuspid smiles (45.9%), upward …

Ada News - 05/04/2020, 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.

Replacing A Single Tooth: Single Implant Vs. Three Unit Bridge, Ibeth Erazo, Aneeza Hussain

Publications and Research

There are more than two options for restoring a single tooth but our research includes a three-unit bridge and a single-tooth implant as the main options. In this paper, we discuss the advantages and disadvantages of these methods and the factors that must be considered when choosing between them for the replacement of a single tooth. Although in some cases a three-unit bridge is the most appropriate choice, implants have the advantage of allowing preservation of the integrity of sound teeth adjacent to the edentulous area. Many factors must be considered when choosing between a three-unit bridge and an implant …

Analysis Of Palatal And Upper Airway Dimensions In Patients With Excessive Daytime Sleepiness: A Retrospective Cone-Beam Computed Tomography Study, Daniel Jarrett

UNLV Theses, Dissertations, Professional Papers, and Capstones

Excessive Daytime Sleepiness (EDS) is the measure of ones propensity to fall asleep during normal daily activities. It has been reported in 20%-50% of adults in the United States and is the most frequent symptom of patients presenting to sleep clinics. EDS is the result of both primary hypersomnias such as narcolepsy and idiopathic hypersomnia and, more commonly, secondary hypersomnias such as sleep deprivation, psychiatric conditions, medications, illegal substances, and obstructive sleep apnea (OSA).

The etiology of OSA is multifactorial. Collapsibility of the upper airway is influenced by both neuromuscular tone and craniofacial anatomy. Common predisposing factors for small airways …

Comparison Of Digital Treatment Setups And Final Treatment Outcomes Of Class Ii Division 1 Malocclusions Treated With Premolar Extractions, Sogol Shantiyai

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: This study aimed to determine whether there are differences between pre-orthodontic treatment dimensions when compared to the virtual treatment simulations and actual orthodontic treatment outcomes in Class II malocclusions treated with two or four premolar extractions.

Introduction: The use of intraoral scanners has become commonplace in orthodontic practices, giving practitioners the ability to scan and assess maxillary and mandibular dental morphology and occlusal relationships chairside and in real-time. Practitioners can use virtual treatment planning to evaluate different extraction patterns, visualize potential non-extraction outcomes using interproximal reduction, and alter anchorage strategies based on the amount of retraction or protraction required …

A Comparison Of Lateral Cephalometric And Arch Dimension Changes In Patients With Class Ii Malocclusions Treated With 2-Premolar And 4-Premolar Extraction Patterns, Melissa Marie Ven Dange

UNLV Theses, Dissertations, Professional Papers, and Capstones

The aim of this study is to gather and analyze data representing detailed changes in model and cephalometric variables that will support clinicians in the premolar extraction decision- making process during camouflage treatment of class II dental patients. It is expected that the models, as measured by intra-arch dimensions, overjet, overbite, and mandibular crowding, and cephalometric radiographs, evaluated by their anteroposterior skeletal discrepancy, incisor inclinations, dental and skeletal vertical positions, and soft tissue characteristics, will significantly differ from within the same treatment group, pre-treatment to post-treatment, and between treatment groups. This retrospective study evaluated the model and cephalometric changes in …

Comparison Of Heat Generated During Twist Drilling Protocol By Guided And Non-Guided Implant Surgery, Joshua Lee

Loma Linda University Electronic Theses, Dissertations & Projects

Introduction: Guided implant surgery is becoming more prevalent among clinicians and is crucial for cases in which there are concerns about the proximity of the implant to vital anatomical structures, esthetic concerns, and the amount/quality of bone available. Surgical guides help with the angulation and positioning of the implant through the use of a CBCT scan and digital intraoral impression. However, there are some drawbacks with guided surgery. Heat that is generated during the osteotomy is one of the issues that has been of concern. The guide acts as a shield against the water irrigation from reaching the osteotomy …

The Emerging Oral Pathogen, Filifactor Alocis, Disrupts Neutrophil Functions To Enhance Survival And Dysregulate Inflammation., Irina Miralda Molina

Electronic Theses and Dissertations

Periodontitis is an irreversible, chronic inflammatory disease where pathogenic microbial communities accumulate in the gingival crevice. Advances in culture-independent techniques have facilitated the identification of new bacterial species in periodontal lesions, such as the Gram-positive anaerobe, Filifactor alocis. Neutrophils are a major component of the innate host response, and the outcome of their interaction with F. alocis may be a determinant of oral health status. While neutrophil functions typically protect the host against periodontal disease, oral pathogens have adapted to evade or disarm neutrophil microbicidal functions while promoting mechanisms that drive inflammation, which also provides a source of nutrients …

The Incidence Of Root Canal Therapy After Full-Coverage Restorations: A 10-Year Retrospective Study, Abby Yavorek, Pradeep Bhagavatula, Kadam Patel, Aniko Szabo, Mohammed Ibrahim

School of Dentistry Faculty Research and Publications

Introduction

The process of restoring a tooth with a crown leaves many opportunities for pulpal irritation. The objective of this study was to identify and analyze the factors that contribute to the incidence of nonsurgical root canal therapy (NS-RCT) after the delivery of single-unit full-coverage restorations.

Methods

Insurance claims from 88,409 crown placements in the Delta Dental of Wisconsin insurance database were analyzed from the years 2008–2017. The Cox regression model was used to analyze the effect of the predictor variables on the survival of the tooth. Untoward events were defined as NS-RCT, tooth extraction, retreatment of root canal, or …

Biomedical Applications Of Tio2 Nanostructures: Recent Advances, Sevda Jafari, Baharak Mahyad, Hadi Hashemzadeh, Sajjad Janfaza, Tooba Gholikhani, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Titanium dioxide (TiO₂) nanostructures are one of the most plentiful compounds that have emerged in various fields of technology such as medicine, energy and biosensing. Various TiO₂ nanostructures (nanotubes [NTs] and nanowires) have been employed in photoelectrochemical (PEC) biosensing applications, greatly enhancing the detection of targets. TiO₂ nanostructures, used as reinforced material or coatings for the bare surface of titanium implants, are excellent additive materials to compensate titanium implants deficiencies—like poor surface interaction with surrounding tissues—by providing nanoporous surfaces and hierarchical structures. These nanostructures can also be loaded by diversified drugs—like osteoporosis drugs, anticancer and antibiotics—and …

Functionalizing Nanoparticles With Cafa Protein To Target Bar Peptide For Oral Delivery Applications., Hetal Desai

Electronic Theses and Dissertations

Background: Porphyromonas gingivalis adherence to Streptococcus gordonii may be important for P. gingivalis colonization in the oral cavity. Nanoparticles encapsulating synthetic peptide BAR (BAR-NPs) inhibit P. gingivalis adherence more potently than free BAR. However, BAR-NPs would exhibit low retention in an open flow environment. Hypothesis: Targeting BAR-NPs to the streptococcal surface using CafA protein will enhance their efficacy. Methods: CafA-modified NPs encapsulating BAR were synthesized using double emulsion approach. Surface binding and retention, and release kinetics of BAR from CafA-modified NPs was assessed. Functional inhibition assays were performed using dual a species biofilm. Results: CafA-modified NPs demonstrated specificity of adhesion, …

Manufacturing And Characterization Of Mechanical, Biological And Dielectric Properties Of Hydroxyapatite-Barium Titanate Nanocomposite Scaffolds, Mina Tavangar, Fatemeh Heidari, Raziye Hayati, Fahimeh Tabatabaei, Daryoosh Vashaee, Lobat Tayebi

School of Dentistry Faculty Research and Publications

In this research, hydroxyapatite (HA)-based ceramics were produced as suitable ceramic implants for orthopedic applications. To improve the physical, mechanical, electrical and biological properties of pure HA, we developed composite scaffolds of HA-barium titanate (BT) by cold isostatic pressing and sintering. Microstructure, crystal phases, and molecular structure were analyzed by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR), respectively. Bulk density values were measured using the Archimedes method. The effect of different percentages of BT on cell proliferation, viability, and ALP activity of dental pulp stem cells (DPSCs) was assessed …

Tobacco Enhances Bacterial-Induced Periodontal Bone Loss In Mice., Mina Iskander

Electronic Theses and Dissertations

Background: Tobacco smoking is the leading environmental risk factor for periodontal diseases. Delineation of the mechanisms underlying tobacco-induced or exacerbated periodontitis is hampered by the lack of an appropriate and reliable animal model. Hypothesis: We hypothesized that Porphyromonas-gingivalis-infected, cigarette smoke-exposed mice would represent reproducible models of acute (ligature model) and chronic (oral gavage model) tobacco-enhanced periodontitis that reflect multiple aspects of the disease noted in human smokers. Methods: In a chronic oral gavage disease model, Balb/c mice (6-8 weeks, 4 groups of n = 6 per group) were exposed to smoke produced by a Teague-10 smoking machine from 1R6F research …

Five Year Evaluation Of The Complications Observed In Porcelain Fused To Metal (Pfm) Crowns Placed At A University Hospital, Shizrah Jamal, Rabia Ghafoor, Farhan Raza Khan, Kamil Zafar

Section of Dental-Oral Maxillofacial Surgery

Objective: To determine the frequency of complications in crowns cemented over a 5-year period in a tertiary care hospital and also to report the survival of these crowns.
Methods: The retrospective cross-sectional study was conducted at the Aga Khan University Hospital, Karachi, from March 2017 to March 2018 and comprised porcelain fused-to-metal crowns placed on the anterior or posterior teeth that were fabricated at the institutional laboratory and were placed in institutional dental clinics in the preceding 5 years. Porcelain-fused to-metal The crowns were clinically and radio-graphically evaluated in a duration of two months for presence/absence of complications. Factors associated …

A Comparison Of Heat Generated Between Carbide And Diamond Bur During Implantoplasty, Bryce Chun

Loma Linda University Electronic Theses, Dissertations & Projects

Purpose: This study was conducted to evaluate heat generated during the implantoplasty procedure by comparing the heat generated using either a carbide or diamond round bur. Materials and Methods: Bovine ribs were selected as the osseous model for this study. Changes in temperature were measured using a digital thermometer (Extech SDL200 four channel thermometer, Extech instruments, Melrose MA). Ther k-thermocouples were positioned within the implant screw access, apex of the implant, and crestal bone adjacent to the implant and ambient air. 5 bovine rib bone blocks were prepared by place 5 cylindrical titanium grade 5 alloy large grit sand blasted …

Oral Health-Related Quality Of Life In Us Adults With Type 2 Diabetes., Giang Truong Vu

Electronic Theses and Dissertations

This dissertation focused on the relationship between type 2 diabetes (T2DM) and oral health-related quality of life (OHRQoL) and the factors associated with this relationship in the US. The objectives of the dissertation research were a three-part process: (1) to understand the relationships of T2DM with poor OHRQoL, clarify risk and preventive factors that affect this association, and identify research gaps in the literature, (2) to analyze risk factors associated with poor OHRQoL in US adults with T2DM using a nationally representative random probability cluster sample, and (3) to apply structural equation modeling (SEM) to a simplified Andersen’s Behavioral Model …