Author Interviews, COVID -19 Coronavirus, Dental Research / 21.10.2020

MedicalResearch.com Interview with: Craig Meyers, PhD Department of Microbiology and Immunology Pennsylvania State College of Medicine Hershey, PA MedicalResearch.com: What is the background for this study? Response: As nasal and oral cavities are major points of entry and transmission for human coronaviruses our team of physicians and scientists (Craig Meyers, Janice Milici, Samina Alam, David Quillen, David Goldenberg and Rena Kass of Penn State College of Medicine and Richard Robison of Brigham Young University) were interested in testing common over-the-counter oral antiseptics and mouthwashes for their efficacy to inactivate infectious human coronavirus, which is structurally similar to SARS-CoV-2, the virus that causes COVID-19. While we wait for a vaccine for COVID-19 to be developed, methods to reduce transmission are needed. We chose products that are readily available and often already part of people’s daily routines. (more…)
Author Interviews, Brigham & Women's - Harvard, Cancer Research, Dental Research, Esophageal, Gastrointestinal Disease / 24.07.2020

MedicalResearch.com Interview with: Mingyang Song, MD, ScD. Division of Gastroenterology Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School Department of Nutrition and Department of Epidemiology Harvard T.H. Chan School of Public Health Boston, Massachusetts MedicalResearch.com: What is the background for this study? Response: Recent studies showed a presence of dysbiotic oral microbiome in patients with esophageal and gastric cancer, suggesting a link between oral health and these cancers. However, how periodontal disease and tooth loss may influence the risk of these cancers has been inconsistent.  MedicalResearch.com: What are the main findings? Response: Our findings support a possible role of oral health in the development of upper GI cancer. Individuals with periodontal disease and tooth loss are at higher risk of developing esophageal and gastric adenocarcinoma. The risk is particularly high for individuals with both periodontal disease and tooth loss.  (more…)
Author Interviews, CDC, Dental Research / 30.05.2020

MedicalResearch.com Interview with: Marcia L. Parker, DMD Division of Oral Health National Center for Chronic Disease Prevention and Health Promotion CDC MedicalResearch.com: What is the background for this study? Response: This report reviewed three measures of tooth loss among adults over 50 years old with selected chronic conditions. The report analyzed data from the 2011–2016 cycles of the National Health and Nutrition Examination Survey (NHANES) to compare the rates of total tooth loss, severe tooth loss (less than 8 teeth), and lacking functional dentition (less than 20 teeth) among people with and without selected chronic conditions. (more…)
Author Interviews, Dental Research, JAMA, Pain Research / 19.03.2020

MedicalResearch.com Interview with: Dr. Romesh P. Nalliah BDS, MHCM Associate Dean for Patient Services Clinical Professor Institute for Healthcare Policy & Innovation Michigan Institute for Data Science Director, Synergy Program MedicalResearch.com: What is the background for this study? Response: We designed and conducted this study because there is a paucity of knowledge related to opioid prescribing for acute dental pain. (more…)
Author Interviews, Dental Research, Environmental Risks, Pediatrics / 12.02.2020

MedicalResearch.com Interview with: R. Constance Wiener, DMD, PhD Associate Professor West Virginia University School of Dentistry MedicalResearch.com: What is the background for this study? Response: Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are chemical groups that have had a wide variety of uses due to their ability to their ability to repel water and stains. They might be found in food packaging, water-repellant clothing and carpeting, paints, fire-fighting foam, and water, for example. Although many are no longer manufactured in the United States, PFAS persist in the environment as they do not readily break down. Adverse health effects have been speculated especially for low birthweight babies, immunological effects, certain cancers and thyroid hormone disruption.1 With these considerations, we hypothesized that there may be an association of PFAS with tooth development and subsequent dental caries (cavities). (more…)
Author Interviews, Dental Research, Opiods / 10.02.2020

MedicalResearch.com Interview with: Katie J. Suda, PharmD, MS Study Principal Investigator Professor of Medicine University of Pittsburgh School of Medicine  MedicalResearch.com: What is the background for this study? Response:   Dentists are one of the top prescribers of opioids; prescribing 1 in 10 opioids in the United States. Dentists also prescribe a lot of opioids to adolescents and young adults which are a high risk population for substance misuse. This is especially true because studies have shown that non-opioid pain medications are similar or more effective for the treatment of oral pain. (more…)
Author Interviews, Dental Research / 22.10.2019

MedicalResearch.com Interview with: Robert Margolskee, MD, PhD Director and President Monell Center Adjunct Professor, Department of Systems Pharmacology and Translational Therapeutics University of Pennsylvania Perelman School of Medicine MedicalResearch.com: What is the background for this study? What are the main findings? Response: We found chemical-sensing cells in the gums that protect the mouth by standing guard against infections that damage soft tissue and destroy the bone that supports the teeth. With the help of bitter taste receptors that also detect byproducts from harmful bacteria, these special gum cells trigger the immune system to control the amount and type of bacteria in the mouth. This knowledge could one day lead to personalized dental treatments against gum disease. Periodontitis is a serious gum disorder caused by an imbalance in the bacteria and other microorganisms of the mouth. We hope that our new information can help to combat this sixth-most prevalent infectious disease and most common cause of tooth loss worldwide. (more…)
Allergies, Author Interviews, C. difficile, Dental Research, Infections / 05.10.2019

MedicalResearch.com Interview with: Alan E. Gross, PharmD Clinical Assistant Professor University of Illinois Chicago, IL MedicalResearch.com: What is the background for this study? Response: Dentists prescribe 10% of all outpatient antibiotics. Most of this prescribing is for infection prophylaxis prior to dental procedures. Our prior research has found that 80% of prescriptions for dental prophylaxis is unnecessary. Although antibiotic prophylaxis prior to dental procedures is often for a short course (e.g. one time amoxicillin dose), there may be patient harm associated with this. (more…)
Author Interviews, Blood Pressure - Hypertension, Dental Research / 24.09.2019

MedicalResearch.com Interview with: Dr Eva Muñoz Aguilera BDS MFDS MClinDent (Dist) MPerio RCSEd EFP Diploma in Periodontology and Implant Dentistry Senior Clinical Teaching Fellow in Periodontology UCL Eastman Dental Institute, London MedicalResearch.com: What is the background for this study? Response: High blood pressure and periodontitis are highly prevalent conditions that affect more than one third of the adult population worldwide. High blood pressure is the leading global cause of premature death and is the main preventable cause of cardiovascular disease,  while gum disease - also known as periodontitis - leads to severe inflammation of the gums and tooth loss. It impairs aesthetics and function and reduces quality of life. Most importantly, there is increasing evidence that periodontitis increases risk for future cardiovascular disease. Both diseases share common risk factors such as obesity and smoking and are major health problems that significantly impact on health costs.  (more…)
Author Interviews, Dental Research, JAMA, Mental Health Research, Mineral Metabolism, Pediatrics / 19.08.2019

MedicalResearch.com Interview with: Rivka Green, MA Doctoral Candidate Clinical Developmental Neuropsychology York University  MedicalResearch.com: What is the background for this study? What are the main findings? Response: We conducted a study on 512 mother-child pairs from 6 major cities across Canada, about half of whom lived in a region that receives fluoridated water. We found that prenatal fluoride exposure was associated with lower IQ scores in 3-4 year old children. (more…)
Author Interviews, Dental Research, JAMA, OBGYNE, Pediatrics, Vitamin D / 06.08.2019

MedicalResearch.com Interview with: Hans Bisgaard, DMSc, MD Head of COPSAC, Professor Professor of Pediatrics, University of Copenhagen Founder and Head of the Copenhagen Prospective Studies on Asthma in Childhood; Gentofte Hospital, University of Copenhagen and Naestved Hospital MedicalResearch.com: What is the background for this study? Response: Enamel defects is a global health challenges affecting typically 1/3 of school children and more in some regions. It leads to break down of the teeth and caries later on. MedicalResearch.com: What are the main findings? Response: Supplementation with high-dose vitamin D compared to standard dose in the third pregnancy trimester in a mother child cohort of 588 pairs lead to a significant reduction of enamel defects. Enamel defects was found in 28% of children by age 6 after standard dose of vitamin D supplementation (400 i.u.), compared to 15% after 7-fold higher dose vitamin D.  (more…)
Author Interviews, Cancer Research, Dental Research, Opiods / 23.07.2019

MedicalResearch.com Interview with: Praveen Arany, DDS, PhD Department of Oral Biology School of Dental Medicine University of Buffalo MedicalResearch.com: What is the background for this study? How is the light treatment delivered? Response: Cancers are usually treated with chemotherapy and/or radiation to destroy the tumor cells. However, an unfortunate side-effect of these treatments is pain and ulcers in the mouth due to breakdown of normal protective responses. Light has various applications in human health and normal physiology. Two good examples are vision and sunlight-Vitamin D for bone and health. The use of low dose light to alleviate pain or inflammation and promote tissue healing is termed Photobiomodulation (PBM) Therapy. This treatment can be provided with lasers or LED devices at specific wavelength (color) and dose (power). This treatment is currently being provided by a health care provider - usually a laser - either nurse or dentist prior or during the cancer treatments. There are several exciting innovation where take-home, self-use devices are becoming available. (more…)
Author Interviews, Dental Research, Opiods, Pain Research / 05.07.2019

MedicalResearch.com Interview with: Dr. Stuart Lieblich, DMD Oral and maxillofacial surgeon  Avon, CT MedicalResearch.com: What is the background for this study? How does EXPAREL® differ from other pain medication for dental work or other short-term procedures? Response: This study analyzed the use of opioids and non-opioid options for postsurgical pain following third molar extraction (wisdom teeth removal). Our research team reviewed data from 600 patients who underwent third molar extraction, with 300 patients having received non-opioid option EXPAREL (bupivacaine liposome injectable suspension) and 300 patients that did not receive an infiltration of EXPAREL. The study aimed to show that reducing opioid prescriptions following this procedure may decrease opioid-related adverse events and the risk of opioid dependence. (more…)
Author Interviews, Dental Research, Stem Cells / 05.07.2019

MedicalResearch.com Interview with: Dr. Ivan V. Reva Senior Researcher, Laboratory of Cellular and Molecular Neurobiology School of Biomedicine, Far Eastern Federal University (FEFU)  MedicalResearch.com: What are the prerequisites for this study?  Response: The existence of congenital and acquired malformations of the teeth and jaws and the many shortcomings of artificial implants dictate the search for alternative methods of treatment of adentia. The prerequisites were the study of the development of the human gastrointestinal tract in the embryonic period, since it is during this period that all the most significant events occur in the structuring of all parts of the gastrointestinal tract, especially the oral cavity, the knowledge of which is necessary for developing a strategy for regenerative medicine. This is associated with obtaining ideas about cell-cell interactions for the cultivation of bioengineering structures of various sections of the gastrointestinal tract, including jaws and teeth. growing-new-teethIt was noted that the differentiation of the structures of the developing jaws is ahead of other divisions. The presence of chromophobic spindle-shaped cells migrating in the direction of the tooth rudiments and their location in the region surrounding the enamel organ indicates intercellular interactions in the development of teeth in humans that differ from these processes in lower vertebrates. At the present stage, it is known that ectomesenchyme is involved in cell assemblies participating in the development of dentin. (more…)
Author Interviews, Dental Research / 02.06.2019

MedicalResearch.com Interview with: Dr. Katie Suda, PharmD, M.S.  Associate Professor College of Pharmacy University of Illinois at Chicago  MedicalResearch.com: What is the background for this study? Response: Dentists prescribe approximately 1 in every 10 antibiotics in the United States and are the top specialty prescriber. Dentists are the primary prescriber of clindamycin in the U.S., which is associated with a high risk of C. difficile infection (an overgrowth of bacteria in the GI tract that can cause a life-threatening infection). Clinical guidelines recommend that patients with specific cardiac conditions receive a dose of antibiotics prior to undergoing invasive dental procedures to prevent infective endocarditis (an infection of the heart values). Taking a dose of antibiotics prior to a dental visit is referred to as antibiotic prophylaxis. Starting in 2007, these guidelines were narrowed secondary to poor evidence on the effectiveness of antibiotic prophylaxis and the risk of antibiotic-related adverse events. Antibiotic adverse events include antibiotic resistance, C. difficile infection, and other general adverse events (nausea, vomiting, diarrhea). While significant research has been conducted on unnecessary prescribing of antibiotics by medical providers, little work has described appropriateness of prescribing by dentists. We assessed if antibiotics prescribed for prophylaxis prior to dental procedures were consistent with clinical guidelines. (more…)
Author Interviews, Dental Research, Opiods, Pain Research / 23.05.2019

MedicalResearch.com Interview with: Dr. Katie Suda, PharmD, M.S. Associate Professor College of Pharmacy University of Illinois at Chicago Dr. Susan Rowan, DDS Clinical Associate Professor, Executive Associate Dean of Clinical Affairs College of Dentistry University of Illinois at Chicago,  MedicalResearch.com: What is the background for this study?  Dr. Katie Suda: Dentists treat a lot of pain – we have all probably had the experience of a terrible tooth ache. All dentists treat pain worldwide so we would not expect a large difference in which pain medication is prescribed. However, our results show that US dentists prescribe opioids more frequently than is likely needed. This is especially true because studies have shown that non-opioid pain medications are similar or more effective for the treatment of oral pain.  (more…)
Author Interviews, Dental Research, Genetic Research / 28.04.2019

MedicalResearch.com Interview with: Katrina Scurrah PhD Senior Research Fellow (Biostatistician), Twins Research Australia, and Melbourne School of Population and Global Health, The University of Melbourne and Honorary Fellow, Murdoch Childrens Research Institute. MedicalResearch.com: What is the background for this study? Response: Oral health is an important component of general health and yet dental caries (decay) is still common in children (affecting up to one in three 5-6 year old children in Australia). Although we know that some genetic and lifestyle factors (such as diet) are important risk factors for caries, the relative importance of these is still unclear.  Risk factors from pregnancy and very early childhood (even before teeth appear) might also be important. This study is the first to include prospectively measured data on health and well-being from pregnancy, birth and early childhood in a study of twin children. We analysed data from a cohort of 172 pairs of twin children to assess the effects of genes and environment on susceptibility to dental caries at six years-of-age. (more…)
AACR, Author Interviews, Cancer Research, Dental Research, Pancreatic, Race/Ethnic Diversity / 28.03.2019

MedicalResearch.com Interview with: Julie R. Palmer, ScD Professor, Boston University School of Medicine Associate Director, Slone Epidemiology Center at Boston University Boston, MA 02118  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Since 1995, 59,000 African American women from all regions of the U.S. have participated in a Boston University research study of the health of Black women.  Study participants complete mailed or online questionnaires every two years. Our major goal is to identify modifiable risk factors for cancers and nonmalignant conditions that disproportionately affect African Americans (e.g., pancreatic cancer, early-onset breast cancer, type 2 diabetes, uterine fibroids).  The reasons for the higher incidence of pancreatic cancer in African Americans relative to non-Hispanic White women in the U.S. are unknown. I was aware that several recent studies in predominantly White populations had observed a higher incidence of pancreatic cancer in those who had reported poor oral health and wondered whether the higher prevalence of poor oral health among African Americans could play a role in their higher incidence of pancreatic cancer.  We had already asked about gum disease, periodontal disease, and adult tooth loss in several rounds of data collection. After rigorous analysis, we found that women who reported any adult tooth loss had about two times the risk of future development of pancreatic cancer compared with those who had no tooth loss and had never reported periodontal disease. The estimated risk was even greater for those who had lost five or more teeth. A similar association was observed for reports of periodontal disease, but the association was not statistically significant. (more…)
Author Interviews, Dental Research, JAMA, Opiods, Pediatrics / 03.12.2018

MedicalResearch.com Interview with: Alan Schroeder MD Associate Chief for Research Division of pediatric hospital medicine Lucile Packard Children’s Hospital Stanford MedicalResearch.com: What is the background for this study? What are the main findings? Response: Third molar “wisdom teeth” extractions are one of the most common surgeries performed in adolescents and young adults, but an adequate appraisal of risks and benefits is lacking. Most patients who undergo this procedure are exposed to opioids post-operatively. We demonstrate that, for privately-insured opioid-naïve patients 16-25 years of age, exposure to opioids from a dental provider is associated with persistent use at 90-365 days in 7% of patients and a subsequent diagnosis relating to abuse in 6% of patients. In contrast persistent use and abuse were significantly lower in control patients not exposed to dental opioids (0.1% and 0.4%, respectively). The median number of pills dispensed for the initial prescriptions was 20. (more…)
Author Interviews, Dental Research, Heart Disease, Infections / 05.11.2018

MedicalResearch.com Interview with: Martin H. Thornhill MBBS, BDS, PhD, MSc, FDSRCS(Edin), FDSRCSI, FDSRCS(Eng) Professor of Translational Research in Dentistry Academic Unit of Oral & Maxillofacial Medicine Surgery & Pathology, University of Sheffield School of Clinical Dentistry  MedicalResearch.com: What is the background for this study?   Response: Infective endocarditis is an infection of the heart valves that has a high death rate (around 30% in the first year). It requires intensive treatment often involving replacement of affected heart valves and frequently results in serious long-term illness and disability in those who survive as well as an increased risk of re-infection and high healthcare costs. In ~40% of cases, bacteria from the mouth are implicated as the causal organism. Because of this, guideline committees around the world recommended that all those at risk of infective endocarditis should receive antibiotic prophylaxis before undergoing invasive dental procedures. Due to a lack of evidence for efficacy, however, guideline committees started to limit the use of antibiotic prophylaxis. And in 2007, the American Heart Association (AHA) guideline committee recommended that antibiotic prophylaxis should continue for those at high-risk but should cease for those at moderate risk of endocarditis. Most guideline countries around the world followed suite. Except in the UK, where the National Institute for Health and Care Excellence (NICE) recommended that the use of antibiotic prophylaxis should completely stop in 2008. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Dental Research / 24.10.2018

MedicalResearch.com Interview with: "Still from "My Dental Hell(th)"" by littledropofpoison is licensed under CC BY 2.0Rita Del Pinto, MD University of L'Aquila Department of Life, Health and Environmental Sciences, L'Aquila - Italy  MedicalResearch.com: What is the background for this study? What are the main findings? Response: There is a wealth of literature in support of a role for inflammation behind cardiovascular risk factors and diseases. One relatively poorly explored field is that of oral diseases, namely periodontitis, as a potential source of low-grade, chronic inflammation. Previous studies had described a beneficial effect of periodontal treatment on blood pressure; we extended current knowledge with our findings on over 3600 treated hypertensive adults with and without periodontitis, showing a significant benefit over systolic blood pressure behavior and control in the presence of a good periodontal health.  (more…)
Author Interviews, Dental Research, JAMA, Opiods / 09.08.2018

MedicalResearch.com Interview with: Calista Harbaugh, MD House Officer, General Surgery Clinician Scholar, National Clinician Scholars Program Research Fellow, Michigan Opioid Prescribing Engagement Network University of Michigan MedicalResearch.com: What is the background for this study? What are the main findings? Response: Wisdom tooth extractions is one of the most common procedures among teens and young adults, with more than 3.5 million young people having wisdom teeth pulled every year. This procedure is commonly paired with a prescription for opioid pain medication. As the opioid epidemic sweeps the nation, we must pay attention to the long term effects of opioid prescribing for even routine procedures. This is particularly important for wisdom tooth extraction where there is evidence that opioid pain medications may be no more effective than anti-inflammatories alone. Using commercial insurance claims, we evaluated the association between receiving an opioid prescription with wisdom tooth extraction and developing new persistent opioid use in the year after the procedure. We found nearly a 3-fold increase in odds of persistent opioid use, attributable to whether or not an opioid was prescribed. This translates to nearly 50,000 young people developing new persistent opioid use each year from routine opioid prescribing for wisdom tooth extraction. (more…)
Author Interviews, Autism, Dental Research, Mineral Metabolism, Pediatrics / 31.05.2018

MedicalResearch.com Interview with: “baby teeth” by Thomas Ricker is licensed under CC BY 2.0Christine Austin PhD Department of Environmental Medicine and Public Health Icahn School of Medicine at Mount Sinai New York, NY 10029 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Previous studies have shown that some metals (nutrients and toxicants) are absorbed and metabolized differently in children with autism spectrum disorder compared to neuro-typical children. However, it is not known when this dysregulation occurs and it is incredibly difficult to study prenatal metal metabolism. Teeth, which begin forming prenatally, grow by adding a new layer every day, much like the yearly growth rings in trees. Each layer formed captures many of the chemicals circulating in the body at the time. We have developed a method to measure metals in these layers to build a timeline of metal exposure during the prenatal and early childhood period. We found that the cycles of copper and zinc metabolism were disrupted in children with ASD and used this feature to develop a method to predict the emergence of autism spectrum disorder with 90% accuracy. (more…)
Author Interviews, Dental Research, Pain Research, University of Pittsburgh / 03.05.2018

MedicalResearch.com Interview with: “Dental Exam” by 807th Medical Command (Deployment Support) is licensed under CC BY 2.0Paul A. Moore, DMD, PhD, MPH School of Dental Medicine University of Pittsburgh  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Effective pain management is a priority in dental practice. Government and private agencies highlight the need to provide optimal pain relief, balancing potential benefits and harms of both opioid and nonopioid analgesic agents. The purpose of our study is to summarize the available evidence on the benefits and harms of analgesic agents, focusing on preexisting systematic reviews. We found combinations of ibuprofen and acetaminophen as having the highest association with treatment benefit in adult patients and the highest proportion of adult patients who experienced maximum pain relief. Diflunisal, acetaminophen, and oxycodone were found to have the longest duration of action in adult patients. Medication and medication combinations that included opioids were among those associated most frequently with acute adverse events in both child and adult-aged patient populations. (more…)
Author Interviews, Dental Research, Pediatrics, Sugar / 29.03.2018

MedicalResearch.com Interview with: “Caries” by COM SALUD Agencia de comunicación is licensed under CC BY 2.0Teresa A. Marshall, PhD Professor in the Department of Preventive and Community Dentistry University of Iowa College of Dentistry Iowa City MedicalResearch.com: What is the background for this study? Response: Dental caries is a process during which oral bacteria ferment carbohydrates to produce acid. The acid demineralizes enamel and/or dentin at the tooth surface leading to white spots and eventually cavitation in the tooth. Added sugars – those not naturally present in foods or beverages, but rather added during processing – are the primary type of carbohydrate associated with caries. Sugar-sweetened beverages (SSBs; beverages with added sugars) are the food/beverage category most associated with dental caries. Historically, fluoride has protected against caries through remineralization of the enamel. However, there has been some question as to whether fluoride’s ability to protect against caries is overwhelmed by the quantity of added sugars currently consumed. Oral hygiene behaviors – brushing and flossing – are thought protect against caries by disrupting the oral bacteria on the tooth. Most studies have investigated dietary factors and caries during early childhood, with less attention paid to caries during adolescence. Our objective was to identify associations between longitudinal beverage intakes and adolescent caries experience, while also considering fluoride intake and tooth brushing behaviors. We followed a group of children from birth through age 17 years; during this time period, we looked at their beverage intakes, fluoride intakes and brushing behaviors every 3-6 months. We calculated their average milk, 100% juice, SSB, water/water-based beverage and fluoride intakes from 6 months through 17 years, and daily tooth brushing from 1 through 17 years. (more…)
Alcohol, Author Interviews, Dental Research, Probiotics / 22.02.2018

MedicalResearch.com Interview with: “Wine” by Uncalno Tekno is licensed under CC BY 2.0M.Victoria Moreno-Arribas Spanish National Research Council | CSIC  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Recent discoveries indicate polyphenols might also promote health by actively interacting with bacteria in the gut. Also, the intake of specific polyphenol-rich beverages and foods helps the maintenance of digestive health and prevention of disease status. However, the knowledge of the effects of polyphenols in relation to the prevention of dental diseases is still at an early stage. The use of antiseptics and/or antibiotics in the prevention and treatment of periodontal diseases can lead to unwanted effects. Therefore, there is a need to develop novel antimicrobial strategies useful for the prevention and management of these diseases. Oral epithelial cells normally constitute a physical barrier that prevents infections, but bacterial adhesion to host tissues constitutes a first key step in the infectious process. With the final goal to elucidate the health properties of wine polyphenols at oral level, we studied their properties as an anti-adhesive therapy for periodontal and cariogenic prevention, as well as the combined action between wine polyphenols and oral probiotic strains in the management of microbial-derived oral diseases. In particular, we checked out the effect of two red wine polyphenols, as well as commercially available grape seed and red wine extracts, on bacteria that stick to teeth and gums and cause dental plaque, cavities and periodontal disease. Also, oral metabolism of polyphenols, including both oral microbiota and human mucosa cells, was investigated.  (more…)
Author Interviews, Dental Research, Technology / 02.02.2018

MedicalResearch.com Interview with: “chipped tooth” by bagaball is licensed under CC BY 2.0Dr. Ming Yang Key Laboratory of Microsystems and Microstructures Manufacturing, Harbin Institute of Technology, Harbin, China  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Self-healing materials and coatings are smart solutions to environmental and energy problems. There are heavy demands for these materials in many productions such as consumer electronics, the automotive industry and healthcare. Current coatings that can self-heal are typically soft. This means they are not as anti-scratch as rigid surfaces and the benefit of the ability to repair themselves could be overwhelmed by their limited robustness vulnerable to normal mechanical contact. It would be very useful to have a self-healing coating with a hardness that can be comparable or even outperform rigid coatings. This is normally difficult because mechanical hardness and self-healing are two conflicting properties with the opposite dependence on polymer dynamics. One good example in this context is many soft tissues can self-heal, but a notable exception is tooth enamel, which is the hardest part in our body but has no way to recover after decay. A new design will be needed to circumvent the fundamental limitation. We find that by mimicking the structure of epidermis, it is possible to combine two contradictory properties into an artificial coating, namely, self-healing ability and high hardness. The success relies on the placement of a hard layer containing graphene oxide on top of a soft sublayer with a seamless interface for interlayer diffusion. This allows a similar healing mechanism as that in skin, but the coating is not soft and has a hardness that even approaches tooth enamel.  (more…)
Author Interviews, Dental Research, Genetic Research / 07.11.2017

MedicalResearch.com Interview with: “Dental Mold_002” by Ano Lobb is licensed under CC BY 2.0Alexandre R. Vieira, DDS. MS, PhD Professor, Director of Clinical Research,  Director of Student Research Department of Oral Biology Center for Craniofacial and Dental Genetics Department of Pediatric Dentistry School of Dental Medicine Department of Human Genetics Graduate School of Public Health Clinical and Translational Sciences Institute University of Pittsburgh  MedicalResearch.com: What is the background for this study? What are the main findings? Response: One aspect is the dilemma between continuing to use dental amalgams and the perception that composite resins are not as durable. We show that composite resin restorations can perform similarly to dental amalgams for the first 5 years. But the most remarkable is that composite resin failures may be related to certain individual risk factors, such as genetic variation. (more…)
Author Interviews, C. difficile, CDC, Dental Research, Infections / 09.10.2017

MedicalResearch.com Interview with: Stacy Holzbauer, DVM, MPH, DACVPM CDC Career Epidemiology Field Officer (CEFO) Commander, USPHS Minnesota Department of Health St. Paul, MN MedicalResearch.com: What is the background for this study?
  • Antibiotics are not harmless drugs—Clostridium difficile infection, which can sometimes cause a deadly diarrhea, is a complication of antibiotic use and can occur after even one dose of an antibiotic.
  • The Minnesota Department of Health (MDH) is part of the larger Centers for Disease Control and Prevention (CDC) Emerging Infections Program (EIP). The healthcare-associated infection component of CDC’s EIP engages a network of state health departments and their academic medical center partners to help answer critical questions about emerging HAI threats including Clostridium difficile also known as “C. diff.”
  • In Minnesota, the majority of C. diff infections occur outside the hospital and are driven by antibiotic use in community or outpatient settings. In addition to routine surveillance data, we interview patients with C. diff who were not hospitalized prior to their infection to identify potential risks for developing C. diff infection, including identifying antibiotics received outside of routine healthcare settings.
  • Dentists prescribe approximately 10% of the antibiotics in outpatient settings, which was over 24 million prescriptions in 2013. When asked about their prescribing practices in a 2015 survey with the Minnesota Dental Association, 36% of dentists surveyed prescribed antibiotics for dental conditions that are generally not recommended to receive antibiotics according to American Dental Association (ADA) guidelines.
(more…)