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Full-Text Articles in Dentistry

Education Regarding And Adherence To Recommended Nutrition Guidelines Among Dental Students, Camille Frayna, Christoffer Devantier, Braden Harris, Karl Kingsley, Joshua M. Polanski Aug 2021

Education Regarding And Adherence To Recommended Nutrition Guidelines Among Dental Students, Camille Frayna, Christoffer Devantier, Braden Harris, Karl Kingsley, Joshua M. Polanski

Dental Medicine Faculty Publications

The Dietary Guidelines for Americans (DGA) were developed to reduce or prevent many types of chronic illness, including cancer, heart disease and diabetes. Healthcare provider recommendations may be influenced by understanding of and adherence to the DGA, which may be incorporated into provider training, medical and dental clinical curricula—although few studies have evaluated adherence to the DGA among dental students. This approved retrospective study of voluntary student responses from a first-year dental school nutrition course included a short dietary and exercise survey administered as part of the DGA learning module. A total of N = 299 students completed the voluntary …


Molecular Screening And Analysis Reveal Novel Oral Site-Specific Locations For The Cariogenic Pathogen Scardovia Wiggsiae, Steven Mcdaniel, Jaydene Mcdaniel, Katherine M. Howard, Karl Kingsley Jun 2021

Molecular Screening And Analysis Reveal Novel Oral Site-Specific Locations For The Cariogenic Pathogen Scardovia Wiggsiae, Steven Mcdaniel, Jaydene Mcdaniel, Katherine M. Howard, Karl Kingsley

Dental Medicine Faculty Publications

Introduction: Scardovia wiggsiae (SW) is a newly identified cariogenic pathogen associated with severe early childhood caries and oral disease. New studies have confirmed the presence of this organism among clinical samples from both pediatric and adult patients. However, the recent discovery of this organism has left researchers with only limited information available regarding the prevalence of this organism—and virtually no information regarding oral site-specific locations. Based upon this lack of information, the overall objective of this study was to perform an oral site-specific analysis of SW prevalence from clinical samples. Methods: Using an approved human subjects protocol, samples (n = …


Assessment Of Microrna (Mir)-365 Effects On Oral Squamous Carcinoma Cell Line Phenotypes, Jeffery Coon, Karl Kingsley Jun 2021

Assessment Of Microrna (Mir)-365 Effects On Oral Squamous Carcinoma Cell Line Phenotypes, Jeffery Coon, Karl Kingsley

Dental Medicine Faculty Publications

miR-365 is a microRNA that regulates transcription and has been demonstrated to promote oncogenesis and metastasis in some cancers while suppressing these effects in others. Virtually no information is known about the presence or function of miR-365 in oral cancers. Based upon this information, the primary goal of this project was to evaluate the expression of miR-365 in existing oral cancer cell lines. Five commercially available oral cancer cell lines (SCC4, SCC9, SCC15, SCC25, and CAL27) were obtained and cultured. RNA was then screened by PCR using primers specific for miR-365, as well as matrix metalloproteinase (MMP-2) and a downstream …


Microbial Screening Reveals Oral Site-Specific Locations Of The Periodontal Pathogen Selenomonas Noxia, Jaydene Mcdaniel, Steven Mcdaniel, Beanca Jhanine Samiano, Matthew Marrujo, Karl Kingsley, Katherine M. Howard Jun 2021

Microbial Screening Reveals Oral Site-Specific Locations Of The Periodontal Pathogen Selenomonas Noxia, Jaydene Mcdaniel, Steven Mcdaniel, Beanca Jhanine Samiano, Matthew Marrujo, Karl Kingsley, Katherine M. Howard

Dental Medicine Faculty Publications

Introduction: Selenomonas noxia (SN) is an important periodontal pathogen, associated with gingivitis and periodontitis. Many studies have found associations between SN and indicators of poor health outcomes, such as smoking, low socioeconomic status and obesity. However, less is known about the prevalence of this organism and more specifically about other oral site-specific locations that may harbor this organism. Methods: Using an existing patient repository (n = 47) of DNA isolated from saliva and other oral sites (n = 235), including the dorsum of the tongue, lower lingual incisor, upper buccal molar and gingival crevicular fluid (GCF), molecular screening for SN …


Longitudinal Curricular Assessment Of Knowledge And Awareness Of Intimate Partner Violence Among First-Year Dental Students, Charles Buchanan, Karl Kingsley, Rhonda J. Everett Jun 2021

Longitudinal Curricular Assessment Of Knowledge And Awareness Of Intimate Partner Violence Among First-Year Dental Students, Charles Buchanan, Karl Kingsley, Rhonda J. Everett

Dental Medicine Faculty Publications

Background: Intimate partner violence (IPV) has previously been recognized as a major public health issue. Oral healthcare providers, such as dentists, are crucial to the screening and identifying of individuals experiencing IPV, since most injuries occur in the head and neck region. A lack of knowledge and awareness regarding teaching and learning about IPV in dental school curricula has been identified. Based upon the overall lack of knowledge, the objective of this study was to conduct a longitudinal assessment of knowledge, awareness, and beliefs regarding IPV among dental students in their first year of education. Methods: All students (n = …


Transcriptomic Phases Of Periodontitis Lesions Using The Nonhuman Primate Model, Jeffrey L. Ebersole, Radhakrishnan Nagarajan, Sreenatha Kirakodu, Octavio A. Gonzalez Apr 2021

Transcriptomic Phases Of Periodontitis Lesions Using The Nonhuman Primate Model, Jeffrey L. Ebersole, Radhakrishnan Nagarajan, Sreenatha Kirakodu, Octavio A. Gonzalez

Dental Medicine Faculty Publications

We used a nonhuman primate model of ligature-induced periodontitis to identify patterns of gingival transcriptomic after changes demarcating phases of periodontitis lesions (initiation, progression, resolution). A total of 18 adult Macaca mulatta (12–22 years) had ligatures placed (premolar, 1st molar teeth) in all 4 quadrants. Gingival tissue samples were obtained (baseline, 2 weeks, 1 and 3 months during periodontitis and at 5 months resolution). Gene expression was analyzed by microarray [Rhesus Gene 1.0 ST Array (Affymetrix)]. Compared to baseline, a large array of genes were significantly altered at initiation (n = 6049), early progression (n = 4893), and late progression …


Micro-Computed Tomographic Evaluation Of Single-Cone Obturation With Three Sealers, Sahar Zare, Ivy Shen, Qiang Zhu, Chul Ahn, Carolyn Primus, Takashi Komabayashi Apr 2021

Micro-Computed Tomographic Evaluation Of Single-Cone Obturation With Three Sealers, Sahar Zare, Ivy Shen, Qiang Zhu, Chul Ahn, Carolyn Primus, Takashi Komabayashi

Dental Medicine Faculty Publications

Objectives
This study used micro-computed tomography (µCT) to compare voids and interfaces in single-cone obturation among AH Plus, EndoSequence BC, and prototype surface pre-reacted glass ionomer (S-PRG) sealers and to determine the percentage of sealer contact at the dentin and gutta-percha (GP) interfaces. Materials and Methods
Fifteen single-rooted human teeth were shaped using ProTaper NEXT size X5 rotary files using 2.5% NaOCl irrigation. Roots were obturated with a single-cone ProTaper NEXT GP point X5 with AH Plus, EndoSequence BC, or prototype S-PRG sealer (n = 5/group). Results
The volumes of GP, sealer, and voids were measured in the region …


A Retrospective Evaluation Of The Prevalence Of Cracked Teeth Among An Adult Population In Nevada, Jacob Ozuna, Benjamin Barborka, Neamat Hassan Abubakr Apr 2021

A Retrospective Evaluation Of The Prevalence Of Cracked Teeth Among An Adult Population In Nevada, Jacob Ozuna, Benjamin Barborka, Neamat Hassan Abubakr

Dental Medicine Faculty Publications

Objective: To identify the distribution and characteristics of cracked teeth in a Southern Nevada population attending the dental clinics of the School of Dental Medicine, University of Nevada, Las Vegas (SDM, UNLV). Methods: A retrospective keyword search of the clinical notes of SDM, UNLV patient charts in AxiUm™ was performed using the search terms “crack” and “fracture” to discern the number of patients that had clinically identifiable teeth with cracks, and which teeth (if any) had documented symptoms consistent with the cracks. The inclusion criteria for the record search were individuals ≥ 18 years old, seen at the dental clinic …


Characterization Of Dental Pulp Stem Cell Responses To Functional Biomaterials Including Mineralized Trioxide Aggregates, Sejin Bae, Bueonguk Kang, Hyungbin Lee, Harrison Luu, Eric Mullins, Karl Kingsley Feb 2021

Characterization Of Dental Pulp Stem Cell Responses To Functional Biomaterials Including Mineralized Trioxide Aggregates, Sejin Bae, Bueonguk Kang, Hyungbin Lee, Harrison Luu, Eric Mullins, Karl Kingsley

Dental Medicine Faculty Publications

Introduction: Many studies in stem cell biology have demonstrated that dental pulp stem cells (DPSC) may be highly proliferative and capable of pluripotent differentiation into many different tissue types. Recent advances in stem cell research have outlined methods for directing in vitro or in vivo growth, viability, and proliferation, as well as differentiation of DPSC-although much remains to be discovered. Based upon this information, the primary objective of this study was to understand the functional biomaterials needed to more effectively direct DPSC viability, growth, and proliferation. Methods: Using an approved protocol, previously collected and isolated samples of DPSC from an …


Micro Ct Pilot Evaluation Of Removability Of Two Endodontic Sealers, David Colmenar, Tenzin Tamula, Qiang Zhu, Chul Ahn, Carolyn Primus, Takashi Komabayashi Jan 2021

Micro Ct Pilot Evaluation Of Removability Of Two Endodontic Sealers, David Colmenar, Tenzin Tamula, Qiang Zhu, Chul Ahn, Carolyn Primus, Takashi Komabayashi

Dental Medicine Faculty Publications

Purpose: This study compared the removability of AH Plus and EndoSequence BC sealers using in vitro micro-computed tomography. Methods: Ten single-canal, extracted human teeth were cleaned and shaped with ProTaper NEXT rotary files to size X5 (50/0.06) (DentsplySirona). Canals were obturated with a single cone gutta-percha and either AH Plus (Dentsply-Sirona) (Group A) or EndoSequence BC (Brasseler) (Group B). ProTaper Universal Retreatment files (Dentsply-Sirona) were used to remove obturation materials after 90 days at 37o C/100% humidity. Each tooth was scanned using micro-computed tomography (SkyScan 1272; Bruker) at an isotropic resolution of 6 μm from which the percent of material …