View clinical trials related to Periodontal Diseases.
Filter by:The oral microbiome has recently emerged as a key contributor in nitric oxide (NO) homeostasis and vascular control by increasing nitrite bioavailability. Antibacterial mouthwash containing chlorhexidine has been shown to be effective in inhibiting the nitrate-reducing activity of oral bacteria, and increasing blood pressure in normotensive and hypertensive individuals. Recent research has also shown that chlorhexidine mouthwash lowered salivary pH and increased salivary lactate and glucose. This was also associated with changes on the activity and diversity of oral bacteria that are susceptible to increase the risk of periodontal disease. On the other hand, mouthwash containing propolis has similar antimicrobial effects than chlorhexidine, but adding some positive outcomes such as increased salivary antioxidant capacity. This may suggest that propolis mouthwash modulates the activity/diversity of oral bacteria. Thus, this study aims to investigate the effect of propolis mouthwash on the nitrate-reducing activity of oral bacteria and vascular function compared to chlorhexidine in healthy humans.
Chronic periodontitis is an inflammatory and polymicrobic disease characterized by the irreversible loss of alveolar bone and connective tissue attachment of the teeth. Chronic periodontitis is the most prevalent type of periodontitis and it is seen in the great majority of the adult population. The main objective of periodontal treatment is to heal the inflammatory tissue, to eliminate unhealthy periodontal pockets, and to reduce the number of pathogenic bacteria. The traditional treatment of chronic periodontitis is debridement performed with hand tools and ultrasonic devices. However, in deep pockets, which are difficult to access, mechanical root surface debridement is not sufficient to remove the biofilm via root instrumentation. The regeneration of the periodontium aims at the reconstitution of the periodontal ligament, alveolar bone, and cementum. Platelet concentrates have gained popularity in regenerative periodontal therapy due to their autologous nature. Their regenerative potential is associated with growth factors such as TGFβ-1, PDGF, EGF, IGF-I, and VEGF, stimulate cell proliferation and regulate matrix remodeling and angiogenesis. Growth factors are naturally occurring proteins that regulate cell growth and development. They also modulate cell proliferation, migration, extracellular matrix formation and other cellular functions in epithelization. In addition, some growth factors may function as cell differentiation factors. These functions of the growth factors support epithelization following surgical periodontal treatment and reduce postoperative pain and swelling with their anti-inflammatory properties. Furthermore, studies have reported their antibacterial potentials. Different platelet concentrates such as platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) are obtained when whole blood is centrifuged at different speeds and for different durations. When the literature is reviewed, it is seen that these platelet concentrates are frequently used in regenerative therapies in dentistry. In 2010, Sohn et al. obtained autologous fibrin glue (AFG), an injectable platelet concentrate, by centrifuging venous blood for two minutes in a special centrifuge device (Medifuge, Silfradent, Italy; 2400-2700 rpm). AFG is used, by mixing it with bone grafts, in the production of sticky bone, which could be an alternative to titanium mesh and bone block procedures that enable grafts to remain more stable in defects. It was found in the literature review that studies on AFG, which is a second-generation platelet concentrate, are limited in number. It was also found that these studies were conducted on sticky bone, obtained by mixing AFG with bone grafts, and there are no studies in which AFG is used alone to treat periodontal diseases. The purpose of this study is to investigate the effect of AFG, an injectable platelet concentration, on clinical parameters in the nonsurgical treatment of chronic periodontitis.
Oral health has improved considerably in recent decades in Sweden, as well as in other countries. However, despite great improvements with regard to periodontal disease and dental caries in recent decades, global problems still persist, and as a consequence of retaining natural teeth high up in age, the risk for oral disease increases.
This study aimed to investigate gingival crevicular fluid (GCF) and serum ErbB4 and Nrg4 levels in periodontal health and disease. A total of 80 individuals, 20 patients with stage II grade B periodontitis, 20 patients with stage III grade B periodontitis, 20 with gingivitis and 20 periodontally healthy individuals were included. Whole-mouth and site-specific clinical periodontal parameters including probing depth, clinical attachment level, bleeding on probing, gingival index, plaque index and papillar bleeding index were recorded. GCF and serum ErbB4 and Nrg4 levels were measured by enzyme-linked immunosorbent assay. Statistical analysis was performed by using non-parametric tests.
We hypothesized that periodontal disease and edentulism could be a risk for CAD and there might be a relationship between the oral status and the number of main coronary vessels with ≥ 50% stenosis. Therefore, primary goal of this study is to investigate the connection between oral status and the extent of coronary artery disease (CAD), which is diagnosed by angiography.
Minimally invasive non-surgical therapy (MINST) is a new approach towards regeneration of deep periodontal defects. Important part of MINST procedure, besides usage of magnification loupes and piezo-electric devices seems to be the usage of special mini-curettes, originally mini-five and after mini-five of Hu-Friedy. So far only descriptive data about the clinical effects of such procedure are available and comparative studies that would include other treatment alternatives are lacking. Therefore, the aim of our study is, on split-mouth model, to compare the number of diseased sites (defined by probing depth ˃ 4 mm and bleeding on probing) after conventional non-surgical therapy and MINST with the usage of special mini-curettes. In addition, new 3D parameters obtained from 3D optical scanning will be developed for evaluation of volume changes of soft tissues.
Caries and periodontal disease are chronic diseases of the oral cavity. The incidence of caries and periodontal disease can vary depending on the position of the third molar, The aim of this study was to verify possible associations between oral health-related quality of life (QoL), periodontal disease, caries lesions and the position of the lower third molar.
The aim of the study was to determine retrospectively the presence of carotid artery calcification (CAC) detected on digital panoramic radiographs (DPRs) and correlate the finding of such calcifications with gender, smoking status, medical history and periodontal status.The authors hypothesized that more CACs could observed in DPRs of individuals with periodontitis and CACs may correlate with the various risk factors included age, gender, smoking status, medical history.DPRs, periodontal status, medical (hypertension, diabetes, hyperlipidemia, cardiovascular disease) and smoking stories of 1101 patients (576 males, 525 females) were evaluated. The patients were divided into two groups as CAC detected in dental DPRs [CAC(+)] and those who were not [CAC (-)]. Periodontal status categorized as gingivitis, periodontitis and gingivitis with reduced periodontium.
Abstract Aim: The primary aim of this study is to test whether or not cement residues in the submucosal environment of implants lead to a change in the microbiota and induce inflammation of the periimplant tissues. Material and Methods: 24 patients in need of a single tooth replacement will be enrolled in this cross-over controlled clinical study. All patients will receive a two-piece dental implant, which will be restored with both a cemented and a screw-retained single crown. At the time of impression taking, patients will be randomized into two groups. Patients in group A will receive a screw-retained crown. Every 8 weeks microbiological samples using sterile paper points will be collected and analyzed for bacterial content by real-time PCR. Additionally, two host markers (MMP8, IL-1ß) will be determined by ELISA. Following this first period of 16 weeks, the screw-retained crown will be replaced by a new intraorally cemented crown. Cement removal will be preformed according to best clinical procedure. These crowns will again be left for another period of 16 weeks and followed up for the harvesting of microbiological samples every 8 weeks. After the second 16-week the crowns will be removed to evaluate any excess cement. All patients will be fitted with the original screw-retained crown. Clinical parameters for inflammation and probing depths will be obtained after each 16 week-period. In group B the crowns will be incorporated in a reverse pattern. During the first 16 weeks any possible cement residues will be removed according to best clinical procedure, while for the second period of 16 weeks patients will be fitted with a screw-retained single crown. Again, microbiological and clinical parameters will be obtained at the same intervals as in Group A. After the second 16 week period the screw-retained crowns will be (re-) inserted in all patients, single tooth x-rays taken and clinical baseline values obtained. Additionally, a soft tissue biopsy will be harvested at the time of insertion of the final screw-retained crown. Patients will be followed up for another 16-week period.
The current study aims to spot the light on the possible role of gingival crevicular fluid (GCF) level of Chemerin and FGF21 to study their potential role as biomarkers of periodontal disease and to understand their role in the link between periodontitis and diabetes . The study will be conducted on three groups; group (A) include fifteen controlled T2 DM patients suffering from periodontitis, group (B) include fifteen patients suffering from periodontitis alone, and group C) include fifteen periodontally and medically healthy individuals. GCF samples will be collected from all participants for assessment of Chemerin and FGF 21. Samples will be analysed using ELISA technique.