Active clinical trials for "Periodontitis"

This study investigates the differences between subjects with and without periodontitis in: the prevalence of (pre)diabetes mellitus, the risk of atherosclerotic cardiovascular disease, the prevalence of metabolic syndrome and the risk of obstructive sleep apnea syndrome.

Apoptosis is an evolutionary form of physiological cell death. Studies suggest that apoptosis is involved in the pathogenesis of periodontal diseases. Human gingival fibroblasts (HGF) have an important role in the periodontal immune response. It is believed that HGF can be diminished and/or eliminated by means of apoptosis. Smoking is one of the most common risk factor of periodontal disease. Studies indicated that smoking can increase the risk of periodontitis by enhancing the apoptosis of gingival fibroblast. The purpose of this study is to determine and to investigate apoptosis of HGF in gingival biopsies collected from smokers and non smokers who are diagnosed with chronic periodontitis or aggressive periodontitis. Eighty subjects will be invited to participate in this study. Patients will be allocated into four groups (20 patients each). Gingival biopsies will be obtained from the base of papillae during surgical treatment (open flap curettage) and will be examined by Immuno-histochemical analysis. Immune-staining will be done using p53 monoclonal mouse anti-human antibody.

The present study will be conducted on fifty participants. All participants will receive a full-mouth clinical examination, and the following periodontal parameters will be recorded: Plaque Index (PI). Gingival Index (GI), probing depth (PD), and clinical attachment level (CAL). All of these measurements will be recorded at six sites at baseline for all participants and 3 months after non-surgical periodontal therapy for the study group. GCF samples will be collected from the buccal aspects of teeth that had the highest signs of inflammation and attachment loss for periodontitis group at baseline and 3 months after non-surgical periodontal therapy. As for controls, the samples will be collected from buccal aspect of upper first molar at baseline. The samples will be assayed for prolactin by using an enzyme linked immunosorbent assay kits (Elisa) according to the manufacturer instruction.

the aim of this study is to evaluate the effect of dental hyperalgesia and mechanical allodynia on the assessment capacity of individuals in a local Turkish population. The hypothesis of this study is that excessive amounts of pain and a major functional shift in the somatosensory system due to central sensitization might cause unwitting intent.

The aim of this study is to estimate GCF MCP-1 levels of healthy and Aggressive periodontitis (AgP) subjects and to compare MCP-1 levels between Localized AgP (LAgP) and Generalized AgP (GAgP) to establish its predictive value/role for distinguishing LAgP and GAgP development.

Oral diseases tend to be exacerbated due to delayed diagnosis. Patients avoid visiting their dentist even for regular checkups, and develop late stage disease, jeopardizing the treatment outcome. There is an urgent need for an inexpensive and minimally invasive technology that would serve as a diagnostic aid, allowing 1) efficient early detection and 2) treatment customization. Diagnostic modalities based on the detection of volatile organic compounds in the exhaled air may answer this need. The proposed research aims at investigating signature molecular patterns of common oral diseases, as a first step toward the development of a computerized non-invasive diagnostic breath test, based on the "Na-Nose" device. The proposed research will be divided to three distinct stages. Stages 1-2 will serve for the detection and analysis of Volatile Organic Compounds connected with common oral diseases, and for the characterization of a specified diagnostic nano-receptor array. Stage 3 will serve for the clinical testing of the array and as a proof of concept. In a pilot experiment, headspaces above colonies of S.mutans, S.sanguis, P.gingivalis and F.nucleatum were trapped and analyzed using Gas Chromatography Mass Spectrometry (GC-MS). A unique VOC signature, consisting of 20-35 molecules, was detected for each of the bacterial strains. These promising results allow the development of an algorithm for statistical detection of oral diseases by their VOC profile alone. Bacteria and distressed tissues emit unique VOCs, and additional research is required with other types and strains of bacteria - including cultivation of samples from active periodontal and carious lesions. The results of the proposed research may be revolutionary. A simple and non-invasive air sampling at home or in a drugstore will significantly increase patient compliance and curability rates, and decrease healthcare expenditure.

The aims of the present study will be identify 5 types of fimbrial subunit genotype strains in smokers and nonsmokers with periodontitis, before and after periodontal therapy. Third two periodontitis patients will be selected to these study, 16 nonsmokers and 16 smokers. Clinical and microbiological parameters were evaluated at baseline and 3 months after periodontal treatment: Plaque Index, Bleeding On Probe, Probing Depth, Gingival Recession and Clinical Attachment Level. The prevalence of P. gingivalis and fimbrial subunit gene strains will be determined by Polymerase Chain Reaction.

Background: The aim of this study was to investigate the levels of malondialdehyde (MDA), total antioxidant status (TAS), 8-hydroxy-2´- deoxyguanosine (8-OHdG) in blood serum and saliva samples in female patients with chronic periodontitis (CP) and to compared healthy individuals. Materials and Methods: A total of 88 women were into four groups each which were consisted of twenty-two subjects. Groups were designed as periodontally and systemically healthy women (PCOS-CP-); periodontally healthy women with polycystic ovary syndrome (PCOS) (PCOS+CP-), systemically healthy women with CP (PCOS-,CP+) and women with PCOS and CP (PCOS+CP+). Serum and salivary samples were obtained, clinical periodontal parameters were recorded. MDA, TAS, 8-OHdG levels were measured as biochemically.

Objective: The aim of this pilot study is to evaluate the alterations of epigenetic patterns in periodontally diseased individuals, before and after periodontal treatment, also in comparison to periodontally healthy patients. Materials & methods: Twenty patients were voluntarily enrolled in two groups: 10 participants with healthy periodontium, and 10 participants with chronic periodontitis. Clinical parameters were recorded and gingival biopsies were collected within the following timelines: At baseline (for both groups), after 15 days (for the diseased group only) and after two months (for the diseased group only).

The aim of this study is to estimate genetic impact of MCP-1 -2518 and its receptor CCR2 -190 polymorphisms on AgP patients among Turkish individuals and whether MCP-1 genotype effects mRNA levels of Peripheral Blood Mononuclear Cell Leukocyte (PBML)