Dose-dependent Anti-inflammatory Effects of Vitamin D in a Human Gingivitis Model
GingivitisThe burden of chronic gingivitis and periodontitis in the US is disproportionately high among Non-Hispanic Blacks compared to Non-Hispanic Whites. Chronic gingivitis is a highly prevalent chronic inflammatory disease that may progress into periodontitis, a major cause of tooth loss, Data from in-vitro and animal studies suggest anti-inflammatory effects of vitamin D; however, if and over what dose-range vitamin D may have anti-inflammatory effects in humans is uncertain. Recent clinical studies indicate that beneficial effects of vitamin D for several important outcomes may occur over a wide range of serum 25-hydroxyvitamin D (25-OHD) concentrations, possibly up to concentrations that would require vitamin D intakes ranging from 2 to more than 10 ten times higher than the current RDA for vitamin D. Because dark skin pigmentation is a potent inhibitor of vitamin D photosynthesis, Non-Hispanic Blacks have much lower 25-OHD serum levels than Non-Hispanic Whites. These differences in vitamin D status may partially explain the racial disparities in prevalence of chronic gingivitis and periodontitis observed in the US. We hypothesize that oral cholecalciferol supplementation can reduce susceptibility to gingivitis over a wide range of serum 25-OHD concentrations in Non-Hispanic Whites and Non-Hispanic Blacks. We propose to conduct a simple, single-center, randomized, double-blind, placebo-controlled parallel-group dose-ranging study. We will compare placebo to doses of 500 IU, 2,500 IU and 5,000 IU vitamin D3 per day. We will compare the severity of gingival inflammation that develops in response to a 28-day period of unlimited plaque growth (experimental gingivitis) between dosage groups. Furthermore, we will evaluate the association between achieved 25-OHD levels and gingival inflammation. The results of this study will have several important implications, as dietary vitamin D supplementation may be a simple, safe and inexpensive means by which to reduce racial/ethnic disparities in gingivitis, as well as to reduce the overall burden of oral disease in the population as a whole. The study will elucidate the dose-response relationship of the anti-inflammatory effects of vitamin D, which in turn may lead to a revision of the current recommendations regarding nutritional supplementation of vitamin D in order to optimize the prevention of important medical conditions and diseases and reduce racial health disparities.
Effects of Two Sugar Substituted Chewing Gums on Caries and Gingivitis Variables
Dental PlaqueSaliva Altered1 moreThe purpose of this study is to determine the effect of three times a day mastication, during a follow-up period of 4 weeks, of two sugar-substituted chewing gums on various factors associated with dental caries and gingivitis.
Effects on Tablets Containing Probiotic Candidate Strains
GingivitisThe aim of the study is to investigate the effect of tablets containing probiotic candidate strains, on gingival inflammation and the levels of selected pro- and anti-inflammatory cytokines in gingival crevicular fluid (GCF). A secondary aim is to describe the effect of the tablets on the salivary microbiome. The null hypothesis is that the clinical measurements, levels of cytokines and microbial composition of saliva will not differ from baseline or between the study and control group. The study is planned as a double-blind; placebo controlled randomized trial with two parallel arms. The intervention period is planned to be 4 weeks. 80 participants are planned to be enrolled after informed consent and then randomly allocated to either the probiotic group or the placebo group. The participants are randomly assigned to one of the study groups and given supply of either probiotic tablets or placebo tablets. The probiotic tablets contain Lactobacillus rhamnosus PB01 and Lactobacillus curvatus P2-2 at a dose of 1 * 109 CFU(Colony Forming Units)/tablet. The participants will take two tablets a day for four weeks. Follow up registrations are conducted after two weeks, four weeks and six weeks. At each visit, saliva and GCF will be collected and then plaque index (PI)) and bleeding on probing (BOP) will be registered. All data will be processed with SPSS software (v 22.0; Chicago, Ill, USA). The follow-up values are compared to baseline within each group by Wilcoxon paired two-sided test and differences between groups are analyzed by Wilcoxon unpaired test. A p-value < 0.05 is considered statistical significant. The participants are fully covered by the patient insurance of The School of Dentistry which cover any damage to the trial participant during the study .There is no expected side effects to the treatment with probiotics. Probiotics are generally considered safe (GRAS: Generally Recognized As Safe) by The European Food Safety Authority (EFSA). The participants will not benefit directly from the treatment, but the knowledge gained from the study might contribute to the prevention of microbial derived illnesses in the mouth, e.g. caries and periodontitis, in the future. The sample collection does not cause any discomfort to the participants and the tablets have no known side effects. Therefore, the personal benefit of the participants corresponds to the minimal risk and discomfort to the participants.
To Evaluate the Efficacy of Probiotics Toothpastes in Improvement of Gingivitis and Prevention of...
GingivitisGingivalis is the one of the most common diseases of oral cavity, and affects more than 75% of adult populations worldwide. The present studies demonstrated that the addition of probiotics in toothpastes or mouthwashes could reduce dental plaques and gum inflammation, and improve oral health. This study was designed to assess the effectiveness of probiotic toothpastes during the supportive therapy of moderate to sever gingivalis patients.
The Effect of Toothpaste Containing Aloe Vera on Gingivitis
Generalized GingivitisTwenty-four adult patients (male and female) with generalized gingivitis participated in the double-blinded randomized crossover trial was divided into two groups, (aloe vera and Colgate toothpaste). a week after receiving polishing and scaling,24hours plaque re-growth, one group received Aloe Vera toothpaste twice times daily and the second group received Colgate toothpaste twice daily. The first visit included PLI measurement after that Investigator removed the supra gingival plaque by cotton roll to avoid contamination with the PERIOPAPER strip during GCF collection, then GCF collected from targeted sites(upper incisors, labial side)and Unstimulated saliva collected (for early colonizer bacterial load S. sanguinis and S. mutant) after that the other clinical periodontal parameters ( BOP) were measured and then scaling was done after sample collection because of gingival bleeding which occur during scaling then inform the patient to use the coded toothpaste which gave to the participant by the assistant not involve in the study so the researcher did not know the type of toothpaste that was given to the participant (Colgate or aloe vera twice daily).The toothpastes was given for one week .The codded toothpaste was gave randomly by a decision on that day for example on Sunday Investigator gave all the participants code 1 and on other days Investigator gave to other participants code 2 .In the second visit the PLI was measured first , then the samples were collected from the same teeth after that the other periodontal parameters were collected again ( BOP). After that, participants entered a 6-day wash out period and they were asked to resume oral hygiene measures. After the washout period, the same protocol was repeated for other type of toothpaste.
A Clinical Trial to Test the Effect of Experimental Mouth Rinse on Gum Disease
GingivitisParticipants will be given special instructions about taking care of their teeth during the 18 hours before they come to the dentist's office for screening/baseline, 1 week, 2 weeks and 4 weeks. At that first visit, they will be examined by a dentist, who will examine their mouths with a dental instrument to determine whether they qualify to participate in the trial. Someone who works for the dentist will also take some oral measurements. Participants who qualify to be in the study will receive a treatment for their gingivitis and have an equal chance of being assigned to one of three treatment groups. Participants in all three groups will be given toothpaste that is already available in stores. They will brush their teeth twice daily in their regular manner. After brushing, participants in one group will use an experimental mouth rinse that is not available in stores. Another group will be given a mouth rinse to use that is already available in stores, and the third group will use a placebo mouth rinse. After they receive their assigned products participants will be supervised while they brush their teeth and rinse to ensure they understand exactly how to use the products. Participants will be required to stay at the site 20 minutes after the first use of product during visit 1 to monitor any potential allergic reaction. All other brushing and rinsing over the next four weeks will be at home, but participants will be required to keep a diary to record their brushing and rinsing times twice each day. Participants will be required to bring their diaries and any left-over toothpaste and mouth rinse with them for three more scheduled appointments after about 1 week, 2 weeks, and 4 weeks. At those appointments, the dentist will examine their mouths, make sure there are no safety concerns, and examine again to get the measurements needed. One of the dentist's staff members will take other measurements as well. The study will determine the measured effects of the experimental mouth rinse on bleeding as a result of gingivitis, and compare these results to the mouth rinse that is already available.
Clinical Effectiveness of 5 Different Mouthwashes in the Treatment of Generalised Gingivitis
GingivitisThe aim of the present study is to evaluate the efficacy of 5 mouthwashes, based on different ingredients, in the treatment of generalised gingivitis.
A Clinical Trial to Evaluate Long-term Efficacy and Safety of Lozenges Containing Lactobacilli Reuteri...
GingivitisThe purpose of this study is to evaluate the long-term efficacy and safety of lozenges containing probiotics in reducing gingivitis. The primary purpose of this study is to support claims from U.S. instructions for use (IFU) for GUM® PerioBalance®.
Frequency of Oral Hygiene
GingivitisOral HealthThe purpose of this study is to evaluate the frequency of oral hygiene in the maintenance of gingival health in patients with an adequate method of oral hygiene.
Clinical Examination of Metal Free Interdental Brushes
GingivitisPeriodontitisThe aim of the study was to evaluate the clinical efficacy (Eastman Interdental Bleeding Index, Quigley and Hein) of a novel metal-free interdentalbrush compared to a classig metal-core interdental brush.