View clinical trials related to Oral Health.
Filter by:The present study aims evaluate the oral health conditions of schoolchildren and its relation to growth, development and well-being. Also, it seeks to evaluate different restorative interventions performed at school premises in primary teeth and its impact on the quality of life.
The purpose of this blind randomized clinical trial is to evaluate different frequencies in self-mechanical control of plaque in individuals with historic of periodontitis and in periodic and preventive maintenance in order to assess which frequencies are compatible with maintaining gingival health.
One of the major challenges in orthodontic treatment is long-term stability. Because removable retainers are worn for at least one year, bacteria and fungi may accumulate on the retainers in the form of multi-species plaque biofilms. This may result in increased incidence of proximal dental caries or oral candida infection. Thus, incorporation of antimicrobial activity in orthodontic acrylic resin to achieve plaque biofilm reduction is highly desirable. An antimicrobial and antifungal quaternary ammonium methacryloxy silicate molecule (QAMS) has been synthesized by sol-gel reaction and incorporated into orthodontic acrylic resin. The QAMS-copolymerized acrylic resin demonstrated contact-killing properties against single-species biofilms in previous in vitro studies and has received US FDA 510(K) clearance for marketing. The objective of the present randomized clinical trial is to determine the in vivo antimicrobial efficacy of the QAMS-containing orthodontic acrylic by using removable retainers that are worn by recruited subjects to create 48-hour multi-species plaque biofilms. The null hypothesis tested is that there is no difference in the antimicrobial activities between QAMS-free and QAMS-containing orthodontic acrylic resin on oral biofilms grown in vivo in human subjects.
The aim of this study is to determine whether by incorporating an Oral Health-Related Quality of Life (OHRQoL) measure in dental practice will improve patient-dentist communication and enhance patient's satisfaction. The objectives of this study are: (i) To determine the measurement equivalence of Computer Touch Screen Assessment (CTSA) and Paper Based Assessment (PBA) of the Oral Health Impact Profile (OHIP-14). (ii) To evaluate and compare how useful a standardized OHRQoL assessment improves patient-dentist communication with regards to number of relevant OHRQoL issues addressed and percentage of most frequently items discussed between the intervention and control groups, assess the patient's active participation between the intervention and control groups and enhances patient's satisfaction between the intervention and control groups.
Background: - Normal bacteria and other tiny organisms are found in healthy human mouths. These are called oral microbiota. It is unclear exactly how the oral microbiota may affect health. For example, if the microbial composition is abnormal, it may lead to mouth conditions like periodontitis. Researchers want to study how the microbiota changes over time. This can help them plan future disease studies. Objectives: - To see if and how oral microbiota change over time. Eligibility: - Forty adult employees of the National Cancer Institute Shady Grove. Design: - For 12 hours before the first visit, participants will not eat or drink (except water). They will not brush, floss, use mouthwash, chew gum, eat lozenges or candies, smoke cigarettes, or chew tobacco. - At the first visit, participants will: - Be given a saliva collector. They will spit 2 mL of saliva into it. - Fill out an online questionnaire. - Every 2 months, participants will visit the clinic and repeat visit 1. - The study ends after 1 year. Sponsoring Institute: National Cancer Institute
In some cases, impacted wisdom teeth should be extracted. Surgical extraction of these impacted third molars may provide special complication as pain, swelling, and trismus. In previous studies, some techniques as sutureless flap closure, modified flap designing, antibiotic usage, and injection of corticosteroids were presented. These methods are reducing post operative complications to moderate level. In this study, pain, swelling, trismus, general patients' satisfaction, and associated quality of life after the surgical removal of third mandibular impacted molars will be compared while injection of dexamethasone (8mg) does not need excessive time, effort, and equipments and it will be injected in numbness area into medial pterygoid muscle and pterygomandibular space to current corticosteroid injecting non-corticosteroid methods. To achieve this aim, 75 non pregnant participants have single impacted mandibular third molar in healthy and without pericoronitis manner, after provision of written informed consent will be entered to the study. During the study, unwilling participants to continue the study and those with abnormality of wound healing process will be excluded. The included participants will be assigned into three 25-people groups. The surgeries were done by 3 same instructed experienced oral and maxillofacial residents. After the surgery pain, swelling, trismus, general patients' satisfaction, and associated quality of life were evaluated using interview of questionnaire in 48 hour, 96 hour, and one week period of time. The comparison was done between these three groups.
The aim of this study is to select the optimal conditions for quantification in the oral cavity of Lactobacillus brevis CD2, a probiotic strain contained in a commercially available dietary supplement and to assess its persistency after oral administration. Different sets of primers for L. brevis detection will be tested in real-time PCR reactions to find optimal amplification efficiency and target specificity. Primers ability in the identification of L. brevis DNA will be assessed in a pilot study conducted on 12 healthy volunteers clinically free of oral pathologies. The subjects will take 3 tablets/day for 3 days and one tablet on the 4th day. Clinical samples (dorsal surface of tongue, first molar, vestibular fornix and saliva) will be collected at baseline (before beginning the trial), at T0 (in the morning before the assumption of the last tablet) and 3, 6, and 9 hours after taking the last tablet. The quantities of L. brevis DNA will be compared to the total number of bacteria present in the samples. The activity of the enzyme arginine deiminase, responsible for oral pH homeostasis (particularly abundant in the CD2 strain) will be also assessed in the saliva samples before and after treatment, by HPLC measurements.
Background: - Dental plaque is a coating of bacteria on the teeth. It contributes to poor dental health and diseases such as gingivitis, cavities and periodontal disease. Researchers who study plaque know that many different types of oral bacteria stick to each other in test-tube experiments. However, it is not clear if these interactions occur in natural dental plaque. By studying how bacteria interact, researchers can better understand how bacteria come together and grow to form plaque. Objectives: - To look at how bacteria interact with one another to form dental plaque. Eligibility: - Healthy nonsmoking volunteers at least 18 years of age. Design: - Participants will be screened with a medical history and dental exam. They will also have dental impressions taken for a stent (a device similar to Invisalign(SqrRoot) braces). - Participants will wear the stent for up to 8 hours a day on selected study visit days. It will contain enamel chips made from sterilized human teeth. The mouth bacteria will stick to the chips and grow. Chips will be taken out of the stent twice during these study visit days. - Participants will have other study visits to provide saliva and plaque samples. They will also have gum swabs to collect bacteria. - Some participants may have a second set of study visits. At these visits, they will chew gum to increase their saliva production. Afterwards, they will wear the stent with the enamel chips for 4 hours. Samples from the stent will be taken once on these study visit days.
Purpose/Objective of the study: The main objective of the study is to investigate oral health awareness and attitudes towards oral health among Norwegian pregnant women and assess the impact of information about oral hygiene on the risk of dental caries during pregnancy. The hypothesis of the study are: 1. The state of oral health during pregnancy depends on pregnant woman's preventive oral hygiene behaviour and practice. 2. Pregnant women with high level of oral health awareness and positive attitude towards oral health are more likely to visit their dentists regularly and have better oral hygiene compared to those with less awareness. 3. Proper information and guidance on oral hygiene care provided during pregnancy can help to improve oral bacteriological milieu and reduce the dental caries risk among pregnant women.
Aim: To assess in vivo if the intake of yogurt containing Bifidobacterium animalis ssp. lactis DN- 1173010 probiotic for a period of 2 weeks affects the salivary levels or biofilms of mutans streptococci and the lactobacilli of patients undergoing orthodontic treatment. Methods: A crossover, double-blind, randomized and placebo controlled clinical trial will be performed with 26 volunteers during 4 periods. During periods 2 and 4 (2 weeks each) the volunteers will have a daily ingestion of yogurt containing probiotic or of control yogurt which did not contain probiotic. Periods 1 and 3 were run-in and wash-out periods of 1 and 4 weeks, respectively. Experimental samples of saliva and biofilm will be collected from each participant at the end of each phase. Mutans streptococci, lactobacilli, total aciduric microorganisms, Candida spp. and total cultivable microorganisms will be counted. The values before and after the treatment will be compared with Wilcoxon's test (p<0.05).