Medicine and Health Sciences Commons^™

Critical-Sized Bone Defects Regeneration Using A Bone-Inspired 3d Bilayer Collagen Membrane In Combination With Leukocyte And Platelet-Rich Fibrin Membrane (L-Prf): An In Vivo Study, Farahnaz Fahimipour, Farshid Bastami, Ahad Khoshzaban, Shahrbanoo Jahangir, Mohamadreza Baghaban Eslaminejad, Fahimeh Kahyyatan, Hannaneh Safiaghdam, Yeganeh Sadooghi, Majid Safa, Tahereh S. Jafarzadeh Kashi, Erfan Dashtimoghadam, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Objectives

We aim to develop a 3D-bilayer collagen (COL) membrane reinforced with nano beta-tricalcium-phosphate (nβ-TCP) particles and to evaluate its bone regeneration in combination with leukocyte-platelet-rich fibrin (L-PRF) in vivo.

Background data

L-PRF has exhibited promising results as a cell carrier in bone regeneration in a number of clinical studies, however there are some studies that did not confirm the positive results of L-PRF application.

Methods

Mechanical & physiochemical characteristics of the COL/nβ-TCP membrane (1/2 & 1/4) were tested. Proliferation and osteogenic differentiation of seeded cells on bilayer collagen/nβ-TCP thick membrane was examined. Then, critical-sized calvarial defects in 8 …

Attitudes Of Virginia Dentists Toward Dental Therapists, Adaira Latrece Howell

Dental Hygiene Theses & Dissertations

Purpose: The purpose of this study was to determine perceptions of Virginia (VA) dentists toward Mid-Level Dental Providers, specifically dental therapists (DT), and determine if American Dental Association (ADA) membership affected attitudes. Methods: After IRB approval, data was collected with an online survey sent to 1208 VA dentists. Participants responded to 11 Likert type scale questions ranging from 1 (strongly disagree) to 7 (strongly agree) assessing their attitudes toward DTs. Participants also responded to questions regarding the appropriate level of education and supervision of a DT, as well as five demographic questions. Two multiple linear regression models were used to …

N Y State Dent J April 2020

The New York State Dental Journal

The New York State Dental Journal (NYSDJ) is produced by the New York State Dental Association (NYSDA) six times a year, in January, March, April, July, September and November. Each issue features clinical and scientific articles written by researchers and practitioners from around the globe and is subject to review by a panel of specialists convened by the Editor.

Issues include cover and feature articles alongside regular columns with regional news impacting the New York membership including editorial and perspectives columns, legal, association activities, component news, continuing education opportunities, and classifieds.

Oral Health Related Quality Of Life In Stroke Survivors At Community-Based Rehabilitation Centre: A Pilot Study, In Meei Tew, Chui Ling Goo, Shahida Mohd Said, Hafizul Izwan Zahari, Noor Amalina Ali, Fatin Athirah Masawi, Aznida Firzah Abdul Aziz, Tuti Ningseh Mohd Dom

Makara Journal of Health Research

Background: Despite being a common problem, long-term disability following stroke often improves after survivors receive regular rehabilitative therapy. This study aimed to assess the oral health-related quality of life (OHRQoL) of stroke survivors who had access to a community-based rehabilitation centre after hospital discharge.

Methods: Dentate post-stroke patients receiving regular rehabilitative care with slight to moderate dependency (Barthel Index >70) and without severe cognitive impairment were involved in this study. The OHRQoL parameters were measured using the Oral Health Impact Profile-14 (OHIP-14) and EuroQol five dimensions (EQ-5D-5L) questionnaires.

Results: Thirty one patients were recruited in this study. …

The Impact Of Dental Caries On Oral Health Related Quality Of Life Amongst Adult Population In Lahore, Pakistan, Hazik Bin Shahzad, Faiza Awais, Um-E-Rubab Shirazi, Hanna Abdul Majeed, Aqeela Rafique, Maliha Shahbaz

Makara Journal of Health Research

Background: Dental caries in adults is a public health problem. A comprehensive assessment of the association between caries and Oral Health Related Quality of Life (OHRQoL) measures is essential for understanding how it impacts the daily life of people and for assessing their oral health needs.

Methods: The survey was conducted at Rashid Latif Dental Hospital, from March-June 2019. A total of 373 adults aged 18-80 years were randomly enrolled in the study. Dental caries was the main exposure, measured clinically. The OHRQoL was measured through Oral Impacts on Daily performance (OIDP) questionnaire. Caries was dichotomized and the relationship to …

Oral Care Practices Of Adults In Turkey, Merve Koseoglu, Ozge Bal, Hatice Bilge Turkan, Beyza Cetin, Muhammed Nuri Tascioglu, Nurullah Aydin, Ozgur Sancar, Selma Altindis

Makara Journal of Health Research

Background: Information on oral health practices can play a key role in improving a community’s oral health status. The aim of this study was to determine oral healthcare practices of Turkish individuals.

Methods: A questionnaire was randomly given to 351 individuals, all of them older than 18 years. This cross-sectional study data were analyzed using descriptive statistical methods and chi-square test. Statistical significance was evaluated at p < 0.05.

Results: According this study, 62.1% of individuals visited the dentist only when they needed to. Furthermore, 58% of individuals brushed their teeth twice a day; 12.5% of them used miswak; …

The Skill Of Critical Appraisal: Determining If The Results Are Valid, Julie Frantsve-Hawley Phd

The Journal of the Michigan Dental Association

This article continues the Journal's series on implementing the Evidence-Based Dentistry (EBD) process into clinical practice. The abundance of scientific literature can make finding the best evidence to answer a clinical question challenging. This article presents strategies for critically appraising literature to ensure the validity and reliability of its conclusions.Implementing evidence-based dentistry requires the adept integration of current evidence into clinical practice. A robust evidence-based approach hinges on the provider's competence in identifying and effectively applying evidence to practice. This entails addressing three key questions: 1) Are the results valid? 2) What are the results? and 3) Can the evidence …

Oral Complications In Cancer Patients: A Review Of Practical Interventions In The Dental Setting, Caroline Bissonnette Dds, Kristin Mcnamara Dds, John Kalmar Dmd, Phd

The Journal of the Michigan Dental Association

Cancer prevalence in the United States is significant, with an estimated 40% of the population experiencing this diagnosis at some point in their lives. In 2020 alone, 1,806,590 new cancer cases were projected, encompassing 53,260 cases involving oral and oropharyngeal malignancies. Amidst barriers like financial constraints and irregular dental visits (highlighted by a 2014 American Dental Association survey indicating that 32.3% of the general population avoids yearly dentist appointments), patients battling cancer often encounter not just routine dental needs, but the intricate challenges arising from their malignancy and treatments. Dental professionals, pivotal in orchestrating optimal treatment strategies for cancer patients, …

Host Modulation And The Inflammatory Response, Carleigh Fraley, Jennifer Knox-Rodriguez, Diana V. Macri

Publications and Research

Host modulation therapy may be effective in controlling the immune response responsible for periodontal diseases.

Ada News - 03/16/2020, 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.

A Case Study Of Barriers To Dental Care In Nebraska, Kaitlin Buhler

Honors Program: Senior Projects (Public)

An important aspect of overall health is access to dental care, which is, unfortunately, oftentimes difficult to obtain. This study used data collected from a case study of three registered dentists in Nebraska to investigate the barriers to dental care, and identified the lack of dental insurance, limited access to free or reduced-price dental care, and dental anxiety as perceived barriers to dental care. Factors that did not seem to have an impact were language or ethnicity differences between patients and workers, distance to travel, comfortability with receiving free or reduced-price dental care, knowledge of how often to visit the …

Structure, Wettability, Corrosion And Biocompatibility Of Nitinol Treated By Alkaline Hydrothermal And Hydrophobic Functionalization For Cardiovascular Applications, S. Rahimipour, E. Salahinejad, E. Sharifi, H. Nosrati, Lobat Tayebi

School of Dentistry Faculty Research and Publications

The main objective of this study is to hydrophobize nitinol (Ni-Ti alloy) for cardiovascular applications. For this purpose, medical nitinol samples were subjected to sodium hydroxide hydrothermal treatments at various temperatures, followed by hexadecyltrimethoxysilane (HDTMS) functionalization. Then, the structure, wettability, corrosion, cytocompatibility and cell adhesion of the prepared samples were evaluated. According to the results, porous blade-shaped layers of sodium titanate were formed on the substrate surface as a result of the alkaline treatment. These nano-rough features offered considerable hydrophobicity after HDTMS processing, where a maximum water contact angle of about 140° was obtained for the sample treated at 120 …

Incorporation Of Functionalized Reduced Graphene Oxide/Magnesium Nanohybrid To Enhance The Osteoinductivity Capability Of 3d Printed Calcium Phosphate-Based Scaffolds, Meisam Omidi, Hossein Golzar, Dorsa Mohammadrezaei, Amir Yadegari, Morteza Rasoulianboroujeni, Mohadeseh Hashemi, Fatemeh Yazdian, Mohammad Shalbaf, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Improving bone regeneration is one of the most pressing problems facing bone tissue engineering (BTE) which can be tackled by incorporating different biomaterials into the fabrication of the scaffolds. The present study aims to apply the 3D-printing and freeze-drying methods to design an ideal scaffold for improving the osteogenic capacity of Dental pulp stem cells (DPSCs). To achieve this purpose, hybrid constructs consisted of 3D-printed Beta-tricalcium phosphate (β-TCP)-based scaffolds filled with freeze-dried gelatin/reduced graphene oxide-Magnesium-Arginine (GRMA) matrix were fabricated through a novel green method. The effect of different concentrations of Reduced graphene oxide-Magnesium-Arginine (RMA) (0, 0.25% and 0.75%wt) on the …

Calcified Infratemporal Mass: Osteochondroma, Galal Omami

Oral Health Practice Faculty Publications

No abstract provided.

Ada News - 03/02/2020, 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.

S-Seco-Porphyrazine As A New Member Of The Seco-Porphyrazine Family – Synthesis, Characterization And Photocytotoxicity Against Cancer Cells, Dariusz T. Mlynarczyk, Jaroslaw Piskorz, Lukasz Popenda, Magdalena Stolarska, Wojciech Szczolko, Krystyna Konopka, Stefan Jurga, Lukasz Sobotta, Jadwiga Mielcarek, Nejat Düzgüneş, Tomasz Goslinski

All Dugoni School of Dentistry Faculty Articles

An important subgroup within the porphyrazine (Pz) family constitutes seco-porphyrazines, in the chemical structure of which one pyrrole unit is opened in the oxidative process. So far, there are only limited data on N-seco- and C-seco-Pzs. Here, the synthesis of a novel member of the Pzs seco-family, represented by an S-seco-tribenzoporphyrazine analogue, 22,23-bis(4-(3,5-dibutoxycarbonylphenoxy)butylsulfanyl)tribenzo[b,g,l]-22,23-dioxo-22,23-seco-porphyrazinato magnesium(II), is reported, with moderate 34% yield. The new derivative was characterized using NMR spectroscopy, UV–Vis spectroscopy, and mass spectrometry. In the photochemical study performed following the indirect chemical method with 1,3-diphenylisobenzofuran, S-seco-Pz revealed a high singlet oxygen quantum yield of 0.27 in DMF. Potential photocytotoxicity of …

New Dentist News (March 2020), Ada Committee On The New Dentist

New Dentist News

New Dentist News offers timely information on scientific, social, educational, political and economic developments affecting new dentists. This collection is historical and items may not reflect current standards. For up-to-date information contact the ADA. The New Dentist News was alternately titled ADA Lifeline, 1997-June 2001.

Celebrate! The Legacy Of Community Water Fluoridation Continues In Grand Rapids, James Wieland Dds

The Journal of the Michigan Dental Association

Michigan dentistry continues to tell the world about the great advance in public health that began in Grand Rapids 75 years ago. This article looks back at past commemorations, and a tribute to those who worked so hard to make a permanent monument to community water fluoridation.

The Flint Water Crisis And Community Water Fluoridation: A Lesson In Communication. Communicating With The Public And Connecting With Community Leaders, Traci J. Dantzler Dds, Raymond Gist Dds

The Journal of the Michigan Dental Association

This article presents how not only was Flint’s water compromised lead contamination of residential waterlines during the Flint Water Crisis, but area dentists had to work hard to refute unsubstantiated claims that adding fluoride to the community water supply increased the level of lead in the water. Oral health advocacy to reassure citizens and build confidence in the community water supply following remediation efforts required sharing the best evidence while most importantly actively listening to assure that community members were heard; that they felt that they have a voice, and to know that we are here to listen to their …

Staff Matters: Employee Rights And The Whistleblower’S Protection Act, Jodi Schafer Sphr, Shrm-Scp

The Journal of the Michigan Dental Association

Staff Matters column on employee rights and the Whistleblower Protection Act.

J Mich Dent Assoc March 2020

The Journal of the Michigan Dental Association

The 75th anniversary of the transformative public health initiative, community water fluoridation, is commemorated in this issue. Originating in Grand Rapids in 1945, its profound impact is explored, emphasizing ongoing celebrations and the imperative of continued advocacy for future generations. The response to the Fling water crisis illustrates colleagues' efforts to restore trust in community water. The publication encompasses insights into the evidence-based dentistry search process and its practical implementation, while offering valuable departmental articles including Dentistry and the Law, Human Resource/Staff Management guidance, and essential updates in News-You-Need.

Ameloplasty Is Counterproductive In Reducing Microleakage Around Resin Modified Glass Ionomer And Resin Based Fissure Sealants, Tabinda Nawaz Khan, Farhan Raza Khan, Syed Yawar Ali Abidi

Section of Dental-Oral Maxillofacial Surgery

Objective: To compare the microleakage around resin modified glass ionomer cement (RMGIC) based sealants and flowable resin based sealants placed with or without ameloplasty in extracted human teeth.
Methods: This in-vitro experimental study was conducted at the Operative Dentistry Department, Dow University of Health Sciences, Karachi, Pakistan from June 2017 to December 2018. Sixty extracted human molars and premolars were assigned to four groups (n=15) each, according to the type of fissure sealant (flowable resin based sealant or resin modified glass ionomer based sealant) used and either placed with or without ameloplasty. Specimens were thermocycled and then immersed in 1% …

Bio-Active Cements-Mineral Trioxide Aggregate Based Calcium Silicate Materials: A Narrative Review, Kamil Zafar, Shizrah Jamal, Robia Ghafoor

Section of Dental-Oral Maxillofacial Surgery

Recent advances in the field of endodontics have greatly improved the outcome and success rate of dental materials. For last three decades, there has been great interest in the development of bioactive dental material with the ability to interact and induce surrounding dental tissues to promote regeneration of pulpal and periradicular tissues. As these bioactive materials are mainly based on calcium silicates, they are also referred to as Calcium Silicate materials. The first material introduced was Mineral Tri-oxide Aggregate, which, due to its favourable biological properties, gained importance initially. However, later, due to its drawbacks, liked is colouration, long setting …

Synthesis And Characterization Of Hemocompatible Antibiotic Nanoparticles, Elvin Muhindo Walemba

Loma Linda University Electronic Theses, Dissertations & Projects

Porphyromonas gingivalis is a causative agent of periodontal disease and a risk factor for cardiovascular disease. Novel treatment of periodontal disease using nanomaterials can supplement or replace the use of antibiotics and mechanical debridement. Nanomaterials can be optimized for effectiveness and specificity and minimum toxicity. Synthesized Ag nanoparticles stabilized in Pluronic F127 were used to produce bimetallic core/shell Ag/Au nanoparticles with optimized Ag+ release and reduced toxicity. We tested the F127-stabilized nanoparticles for their antimicrobial activity and hemocompatibility in planktonic bacteria and citrated whole blood, respectively. Both Ag and Ag/Au bimetallic nanoparticles inhibited P. gingivalis W83 growth. We then evaluated …

Mmp-7 And Mmp-9 Are Overexpressed In The Synovial Tissue From Severe Temporomandibular Joint Dysfunction, Carla Loreto, Veronica Filetti, Luis Eduardo Almeida, Giusy Rita Maria La Rosa, Rosalia Leonardi, Cristina Grippaudo, Antonino Lo Giudice

School of Dentistry Faculty Research and Publications

Matrix metalloproteinases (MMPs) are tissue-enzymes that play a key role during the remodeling process, such as in inflammatory diseases. MMP-7 and MMP-9 have been shown to be implicated in extracellular matrix homeostasis and in joint disc remodeling. The objective of this study was to determine the relation of MMP-7 and MMP-9 expression with severe temporomandibular joint dysfunction, in particular with anterior disk displacement without reduction (ADDwoR), using an immunohistochemical approach. Therefore, twenty human temporomandibular synovia in the test group and ten in the control group were collected. The results showed there was a statistically significant difference (P<0.001) for morphometric and densitometric analysis of both detected MMPs in control and test groups. In conclusion, MMP-7 and MMP-9 were overexpressed in the synovial tissue of patients with ADDwoR.

Biodegradable Magnesium Bone Implants Coated With A Novel Bioceramic Nanocomposite, Mehdi Razavi, Mohammadhossein Fathi, Omid Savabi, Lobat Tayebi, Daryoosh Vashaee

School of Dentistry Faculty Research and Publications

Magnesium (Mg) alloys are being investigated as a biodegradable metallic biomaterial because of their mechanical property profile, which is similar to the human bone. However, implants based on Mg alloys are corroded quickly in the body before the bone fracture is fully healed. Therefore, we aimed to reduce the corrosion rate of Mg using a double protective layer. We used a magnesium-aluminum-zinc alloy (AZ91) and treated its surface with micro-arc oxidation (MAO) technique to first form an intermediate layer. Next, a bioceramic nanocomposite composed of diopside, bredigite, and fluoridated hydroxyapatite (FHA) was coated on the surface of MAO treated AZ91 …

Mechanistic Assessment Of Functionalized Mesoporous Silica-Mediated Insulin Fibrillation, Mohsen Akbarian, Lobat Tayebi, Soliman Mohammadi-Samani, Fatemeh Farjadian

School of Dentistry Faculty Research and Publications

Insulin, which is a small protein hormone consisting of 51 amino acids, rapidly fibrillates under stressogenic conditions. This biotechnological/ medical problematic reaction quickly accelerates in the presence of some particles, while there are several other particles that slow down the kinetic process. To address the unexplored demand of the particles that modulate protein fibrillation, we have synthesized two amino-based particles and a chitosan-coated mesoporous silica particle (MS-NH₂, MS-3NH₂, and MS-chitosan) to investigate insulin fibrillation. While these particles were fairly similar in size, they are differ in their net positive charge and surface hydrophobicity. To monitor the …

N Y State Dent J March 2020

The New York State Dental Journal

The New York State Dental Journal (NYSDJ) is produced by the New York State Dental Association (NYSDA) six times a year, in January, March, April, July, September and November. Each issue features clinical and scientific articles written by researchers and practitioners from around the globe and is subject to review by a panel of specialists convened by the Editor.

Issues include cover and feature articles alongside regular columns with regional news impacting the New York membership including editorial and perspectives columns, legal, association activities, component news, continuing education opportunities, and classifieds.

Fluoridation: Our History, Our Legacy, James Wieland Dds

The Journal of the Michigan Dental Association

2020 marks the 75th anniversary of one of the world’s most dramatic public health initiatives, a public health project that dramatically improved the oral health of millions of people, not only in the United States but throughout the world. On Jan. 25, 1945, the Grand Rapids Study was launched and the Furniture City became the world’s first to adjust the fluoride level of its public water supply.

This landmark trial established the use of fluoridation as a safe, effective, and economical public health measure to prevent tooth decay.

How the Grand Rapids Study began is a fascinating story. Even though …

Community Water Fluoridation’S Legacy: Protect It Or Lose It, Johnny Johnson Dmd, Ms

The Journal of the Michigan Dental Association

This article presents advocacy strategies to promote and preserve community water fluoridation initiatives. The American Fluoridation Society, patterned after the British Fluoridation Society, brings dentists, health experts, and other allies and provides evidence-based resources to address a broad spectrum of assertion by fluoridation opponents.