Medicine and Health Sciences Commons^™

Root And Canal Morphology Of Maxillary Premolar Teeth In An Egyptian Subpopulation Using Two Classification Systems: A Cone Beam Computed Tomography Study, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Aim: To investigate the number of roots and root canal configurations using two coding systems and the root canal diverging and merging levels in extracted maxillary premolars in an Egyptian subpopulation using cone beam computed tomography (CBCT). Methodology: A total of 700 maxillary premolars were examined using CBCT in an Egyptian subpopulation. The number of roots was identified, and root canal configurations were classified according to Vertucci's classification and a new system for classifying root and canal morphology. In addition, the position where roots bifurcated and the levels where canals merged or diverged were identified. Fisher's exact test and independent …

A Systematic Review Of The Caries Prevalence Among Children Living In Chernobyl Fallout Countries, Michael Wolgin, Nicole Filina, Valentyn Dvornyk, Edward Lynch, Andrej M. Kielbassa

Dental Medicine Faculty Research

The present study analyzed the data concerning the caries prevalence in children born and permanently residing in Chernobyl fallout areas. Setting forth to evaluate if differences regarding the caries prevalence can be observed compared to non-contaminated sites of affected East European countries. Methods used to assess the caries prevalence were limited to DMFT/dmft (decayed, missing and filled teeth) for the primary and the permanent dentitions. The databases PubMed, EMBASE/Ovid, Cochrane Library, Scopus, and eLIBRARY were consulted for the electronic literature search...(Please see text for full abstrast)

Diagnosis Of B-Cell Lymphoproliferative Disorder Through Concomitant Management Of Medication-Related Osteonecrosis Of The Jaw: A Case Report, Robert Diecidue, Allen F. Champion, Ruifeng Zhou, James G. Buckley

Department of Oral and Maxillofacial Surgery Faculty Papers

No abstract provided.

Primary Molar Pulpotomies With Different Hemorrhage Control Agents And Base Materials: A Randomized Clinical Trial, G. Atasever, T. I. Keceli, Serdar Uysal, H. Cem Güngör, S. Olmez

School of Dentistry Faculty Research and Publications

Objective: To evaluate the clinical and radiographical success of primary molar pulpotomies which used 15.5% ferric sulfate (FS) or 1.25% sodium hypochlorite (NaOCl) for hemostasis and zinc oxide-eugenol (ZOE) and calcium hydroxide (CH) pastes as base materials.

Methods: In 29 healthy children, 80 primary molars were randomly allocated to one of the study groups: Group 1: FS-ZOE, Group 2: FS-CH, Group 3: NaOCl-ZOE, and Group 4: NaOCl-CH. After hemostasis with the respective solutions, pulp stumps and floor of the pulp chambers were covered with either ZOE or CH pastes. All teeth were restored with stainless steel crowns. Follow-up examinations were …

Effect Of Airborne-Particle Abrasion On 3-Dimensional Surface Roughness And Characteristic Failure Load Of Fiber-Reinforced Posts, Georgios Maroulakos, Michael W. Wanserski, Michelle M. Wanserski, Ethan J. Schuler, Colin P. Egan, Geoffrey A. Thompson

School of Dentistry Faculty Research and Publications

Statement of problem

Debonding is the most common complication of fiber-reinforced posts (FRPs). Airborne-particle abrasion (APA) has been suggested to increase resin cement adhesion to the surface of FRPs. However, which abrasion protocol is the most favorable is unclear.

Purpose

The purpose of this in vitro study was to compare the surface roughness and characteristic failure load of three FRP systems following different APA protocols.

Material and methods

A total of 150 posts from 3 manufacturers (glass FRP, quartz FRP, and zirconia-enriched glass FRP) were randomly assigned to different surface treatments (NT: no treatment—control; E0: cleaned with 96% ethanol solution; …

Introduction To The Field Actions Science Reports Special Issue 19 (2019): Reinventing Plastics, David M. Ojcius, Nicolas Renard

All Dugoni School of Dentistry Faculty Articles

No abstract provided.

J Mich Dent Assoc Mar 2019

The Journal of the Michigan Dental Association

Archival issues of the Journal of the Michigan Dental Association may include reports on the activities of the association and its members, clinical articles, information on legal and ethical practice considerations, and perspectives of interest to MDA members and those in the oral health profession.

Pretreatment With A Heat-Killed Probiotic Modulates The Nlrp3 Inflammasome And Attenuates Colitis-Associated Colorectal Cancer In Mice., I-Che Chung, Chun-Nan Ouyang, Sheng-Ning Yuan, Hsin-Chung Lin, Kuo-Yang Huang, Pao-Shu Wu, Chia-Yuan Liu, Kuen-Jou Tsai, Lai-Keng Loi, Yu-Jen Chen, An-Ko Chung, David M. Ojcius, Yu-Sun Chang, Lih-Chyang Chen

All Dugoni School of Dentistry Faculty Articles

Colorectal cancer (CRC) is one of the most common malignancies worldwide. Inflammation contributes to cancer development and inflammatory bowel disease is an important risk factor for CRC. The aim of this study is to assess whether a widely used probiotic Enterococcus faecalis can modulate the NLRP3 inflammasome and protect against colitis and colitis-associated CRC. We studied the effect of heat-killed cells of E. faecalis on NLRP3 inflammasome activation in THP-1-derived macrophages. Pretreatment of E. faecalis or NLRP3 siRNA can inhibit NLRP3 inflammasome activation in macrophages in response to fecal content or commensal microbes, P. mirabilis or E. coli, according …

Implant Impression Accuracy Of Parallel And Non-Parallel Implants: A Comparative In-Vitro Analysis Of Open And Closed Tray Techniques, Motaz S. Osman, Hassan M. Ziada, Neamat H. Abubakr, Ahmed M. Suliman

Dental Medicine Faculty Research

Background The outcome of the evaluation of impression techniques accuracy may improve the selection criteria for an ideal technique. The aim was to evaluate the accuracy of the open and closed tray techniques for implant impressions, in a partially edentulous maxilla, replaced with a three-unit fixed partial denture, as well as to assess the effect of implants parallelism on accuracy. Material and methods This is an experimental in vitro study to evaluate impressions accuracy of a simulated area restored with an implant retained FPD, using the open and closed tray implant impression techniques. The effect of implant position angulation, parallelism, …

Ada News - 02/18/2019, 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.

Silver Diamine Fluoride Versus Sodium Fluoride For Arresting Dentine Caries In Children: A Systematic Review And Meta-Analysis, Alice Trieu, Ahmed Mohamed, Edward Lynch

Dental Medicine Faculty Research

Dental caries can compromise quality of life and is associated with demineralization of tooth structure by organic acids produced by microorganisms. This study systematically reviewed the dentine caries arrest capabilities of silver diamine fluoride (SDF) and sodium fluoride (NaF). A comprehensive search strategy was developed to identify the relevant publications in electronic databases and hand searched journals and reviews (to March 2018). By applying strict inclusion and exclusion criteria, only six papers (two randomized controlled trials, two follow-up articles and two secondary statistical analysis studies) were considered for full text qualitative and quantitative assessment. The included studies were critically appraised …

Remaining Dentine Thickness Following Tooth Preparation And Its Impact On Dentine – Pulp Complex, Rudina Berani, Merita Barani Sveqla

International Journal of Business and Technology

There are many factors accused of causing pulpal damage, but studies indicate that endodontic complications after placement of fixed prosthetic crowns and bridges are entirely iatrogenic and as a consequence of a deep tooth preparation. In 2mm of the remaining dentine thickness after preparation, there are significant reductions in cellular cell adhesion molecules in the pulp of the prepared tooth data compared to those intact. Researchers confirm that even this decline may be an expression of early stages of pulp inflammation. According to Murray & co, the number of odontoblasts in a dentine thickness of 2.5-0.5mm, was reduced by 13.6%; …

Ada News - 02/04/2019, 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.

Oral Rapid Hiv Testing: Implementation Experiences Of Dental Hygiene Faculty And Students, Anthony J. Santella, Anna Matthews, Cristina Casa-Levine, Lawrence Pizzitola, Doonachar Alana, Gregory O. Page

Publications and Research

Purpose: The goal of oral rapid HIV testing (ORHT) in the dental setting is to identify persons who are unaware of their positive HIV status. The purpose of this study was to describe the experiences of dental hygiene faculty and students who implemented ORHT in university-based dental hygiene clinics and to assess the facilitators and barriers to implementation of ORHT in the dental setting.

Methods: Data were collected via semi-structured interviews with dental hygiene faculty and students who conducted ORHT in three dental clinics located in academic institutions. All interview sessions were audio-recorded and transcribed. An inductive approach informed by …

Oral Cancer Awareness Among University Students From Karachi, Pakistan, Dnyanesh Limaye, Patrick Ziesenis, Vaidehi Limaye, Mansoor Ahmad, Farah Saeed, Mahboob Alam, Ramla Rizvi, Atul Kapadi, Sushama Sathe, Gerhard Fortwengel

Section of Dental-Oral Maxillofacial Surgery

Background: Oral cancers (OC) are malignant lesions occurring in the oral cavity that include squamous cell carcinomas (SCC), salivary gland and odontogenic neoplasms. Even though it is the eighth most common malignancy globally but in Pakistan it is the second commonest type of cancer. Lack of awareness about ill-effects of preventable risk factors of oral cancer increases the burden of disease due to the associated high cost of treatment, permanent impairment and high mortality. Hence, awareness can be very helpful in prevention, control and early diagnosis of oral cancer.
Methods: A cross-sectional study was carried out among university students from …

Association Between Asthma And Dental Caries Amongst 12 - 15 Years Old Children: A School-Based Cross-Sectional Study In Karachi, Pakistan, Wajeeha Zahid, Shafquat Rozi, Farhan Raza Khan, Nida Zahid, Muhammad Masood Kadir

Community Health Sciences

Objective: The study aimed to determine an association between dental caries and asthma among 12 to 15 years old children.
Methods: This is a school-based cross-sectional study conducted from January to February 2016. A random sample of 544 children aged 12 - 15 years were enrolled from five private schools of Karachi. Dental caries was assessed using DMFT Index (Decayed, Missing, Filled teeth). The main exposure variable was asthma and information on it was collected through the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire.
Results: The data was analyzed using Cox Proportional Hazard algorithm. Crude and adjusted …

Peer Review/Ethics System: A Guide For Mda Members, Michael G. Maihofer Dds

The Journal of the Michigan Dental Association

Regular column featuring ethical guidance and consideration for practicing dentists.

J Mich Dent Assoc Feb 2019

The Journal of the Michigan Dental Association

Archival issues of the Journal of the Michigan Dental Association may include reports on the activities of the association and its members, clinical articles, information on legal and ethical practice considerations, and perspectives of interest to MDA members and those in the oral health profession.

Association Between Periodontal Pathogens And Systemic Disease, Fiona Q. Bui, Cássio Luiz Coutinho Almeida-Da-Silva, Brandon Huynh, Alston Trinh, Jessica Liu, Jacob Woodward, Homer Asadi, David M. Ojcius

All Dugoni School of Dentistry Faculty Articles

A growing body of literature suggests that there is a link between periodontitis and systemic diseases. These diseases include cardiovascular disease, gastrointestinal and colorectal cancer, diabetes and insulin resistance, and Alzheimer's disease, as well as respiratory tract infection and adverse pregnancy outcomes. The presence of periodontal pathogens and their metabolic by-products in the mouth may in fact modulate the immune response beyond the oral cavity, thus promoting the development of systemic conditions. A cause-and-effect relationship has not been established yet for most of the diseases, and the mediators of the association are still being identified. A better understanding of the …

Ada News - 01/21/2019, 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.

Mathematical Modeling Of Oxygen Transfer In Porous Scaffolds For Stem Cell Growth: The Effects Of Porosity, Cell Type, Scaffold Architecture And Cell Distribution, Saeid Atashrouz, Ali Hatampoor, Amir Yadegari, Hamed Ghasemi, Lobat Tayebi, Morteza Rasoulianboroujeni

School of Dentistry Faculty Research and Publications

Oxygen plays a key role in human mesenchymal stem cell growth. Without adequate oxygen (hypoxic condition), cells are not able to survive, proliferate, and migrate. The objective of the present study is to investigate oxygen transfer through the cell-seeded scaffolds stored in static or dynamic bioreactors using a mathematical model. The effects of porosity, cell type, scaffold architecture and cell distribution as potential effective parameters on oxygen transfer kinetics were examined. The results suggest the substantial effect of porosity and cell type on the oxygen concentration within the scaffold compared to scaffold architecture (homogeneous vs. gradient). The obtained data …

Ada News - 01/07/2019, 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.

Sleep Apnea In Children, Tanya Al-Talib

School of Dental Medicine - UMC Briefs

Does your child snore? Have you witnessed your child stop breathing while sleeping? Is your child not growth at a normal rate? Does your child feel tired? Does your child have trouble focusing in school? Does your child wet the bed?

All of the above conditions may be related to having sleep problems and or sleep disordered breathing.

Electronic Nicotine Delivery Systems: Vaping Away Gum Tissue, Christina Tulloch, Denise Thieleman

Dental Hygiene Student Scholarship

Objective: Conventional cigarettes have shown severe toxicity on immune cells and wound healing in the periodontium, but little is known about the comparative effects of vaping or electronic cigarettes. In a substantial shift away from conventional cigarettes, vaping and e-cigarette sales have increased nearly 600% since 2017. If current conventional cigarette users are to transition to a less detrimental alternative, the evidence must demonstrate if electronic nicotine delivery systems can be deemed safer than conventional options.

Methods: By compiling data from the PubMed database, the most recent perspectives on new smoking methods and effects of usage on periodontal tissues were …

Oil Pulling: Fact Or Fad?, Cassandra N. Cooper

Dental Hygiene Student Scholarship

Problem: There is a greater need in today’s world for better oral care across all populations. In developing countries, the tradition of oil pulling has provided an affordable and accessible alternative to antimicrobial rinse agents. Western society has taken note of this and oil pulling has emerged as the latest oral hygiene fad.

Methods: This review of literature used the following databases: PubMed, CINAHL and Google Scholar to identify relevant research articles. Search terms included oil pulling, coconut oil, sesame seed oil, oil swishing, oral health, periodontitis, gingivitis, and bacterial adherence. The studies reviewed used previously validated data collection methods …

Dental Dam Utilization By Dentists In An Intramural Faculty Practice, Terence A. Imbery, Caroline K. Carrico

General Practice Publications

Objectives: From casual observation of our colleagues, only a few individuals use the dental dam for operative procedures in their faculty practice. The purpose of this study was to obtain faculty perceptions of the dental dam, quantify its utilization in their intramural faculty practice, and determine the factors that influence dental dam usage.


Materials and Methods: A survey containing 11 questions was sent to 19 faculty members who teach full time and maintain an intramural dental practice involving operative dentistry. Thirty electronic dental health records of the 19 providers were reviewed to gather the following information from restorative procedures they …

Physical And Optical Properties Of Provisional Crown And Bridge Materials Fabricated Using Cad/Cam Milling Or 3d Printing Technology, Niranjan Joshi

Student Theses, Dissertations and Capstones

Objective: This study compared the physical and optical properties of provisional crown and bridge materials fabricated using CAD/CAM or 3D printing technology. Aim: To compare the biaxial flexural strength, microhardness, translucency parameter and gloss of provisional resin discs fabricated by milling PMMA blocks, versus two different resins printed using 3D printers. Hypothesis: There is no difference in the flexural strength, hardness, translucency and gloss of provisional resins fabricated by different digital technologies. Materials and methods: 90-disc shaped specimens for provisional resins were fabricated using a common digital file. These samples were equally distributed in three groups of 30 each. Group …

Knowledge, Attitudes And Practice Behaviors About Caries Risk Assessment And Management, Ahmad Malluh

Student Theses, Dissertations and Capstones

Brief Background: The World Health Organization (WHO), the International Association for Dental Research (IADR) and the World Dental Federation (FDI) in 1981 established the first global oral health goals and promoted the development of oral health objectives targeting reduction in key oral health indicators by 2020. Among the oral health indicators identified in this initiative was the reduction of caries. While there is evidence to suggest that from a global perspective the prevalence of caries is decreasing, there are geographical locations, like Saudi Arabia, where the prevalence of caries is exceeding worldwide statistics. Hence, dental professional, research, and educational associations …

Correlation Of Body Mass Index Percentile And Craniofacial Morphology: A Retrospective, Cross-Sectional Study, Adam G. Danze

Student Theses, Dissertations and Capstones

Introduction: Obesity rates are rising exponentially in many countries around the world, particularly in the United States. This epidemic is affecting people of all ages, and little to no progress has been made it slow it down. Lack of physical activity and increased consumption of energy rich foods and caloric intake have been recognized as contributing factors for the concerning increase in the prevalence of obesity in child and adult populations. The high prevalence of obesity is believed to be a complex interplay of genetic, environmental, socioeconomic, cultural, and psychological factors. Childhood obesity is occurring at progressively younger ages, leading …

The Relationship Of Parent-Reported Symptoms Of Sleep-Disordered Breathing With The Presence Of Malocclusion And Craniofacial Disharmony In Pediatric Orthodontic Patients, Astin Barnes

Student Theses, Dissertations and Capstones

Introduction: Sleep-disordered breathing (SDB) is a term for breathing difficulties occurring during sleep and encompasses frequent loud snoring to Obstructive Sleep Apnea (OSA). SDB in children has been linked to daytime sleepiness, poor school performance, hyperactivity, cardiovascular complications, impaired overall growth, development of malocclusion, and craniofacial disharmony. The American Academy of Pediatrics and the American Association of Orthodontists (AAO) urge more studies to educate about etiology, symptoms, and sequelae of SDB. Therefore, this study proposed to investigate the association between symptoms of SDB and malocclusion and craniofacial disharmony in children. Methods: The Pediatric Sleep Questionnaire (PSQ) was used to obtain …