Active clinical trials for "Periodontal Diseases"

Dental calculus is a calcified deposits firmly attached to teeth and implants surfaces. Dental calculus is strongly associated with periodontitis and considered to have indirect role in the pathogenesis of periodontal diseases. Dental calculus composed primarily of calcium phosphate mineral salts originated in the saliva covered by unmineralized bacterial layer. Composition of calculus varies from person to person and influenced by numerous variables such as: age, gender systemic disease and ethnic background. Nephrolithiasis (kidney stones) are composed of insoluble salts of constituents of the forming urine. The most two frequent stone types are: Calcium oxalate (with a frequency of 15% -35%) and Calcium phosphate (5% -20%). The prevalence of kidney stones varies with race, sex, and geographic location. In the United States for men, kidney stone rates vary between 4%-9%, and for women, kidney stone rates range between 2%-4%. Previous studies dealt with the connection between sialolithiasis and nephrolithiasis were inconclusive. To the authors' best knowledge no studies were done to examine the associations between nephrolithiasis and dental calculus. Thus, the aim of this study is to compare the mineral composition of both dental calculus and nephrolithiasis and determine whether nephrolithiasis composition may be linked to the periodontal status.

Direct Oral Anticoagulants were recently approved for medical treatment of several condition such as, non valvular atrial fibrillation, deep venous thrombosis, and others, substituting sometimes the conventional oral anticoagulants. The aim of the present study is to observe the possible difference in intra-operative and post-operative bleeding events for periodontal debridement.

Objective The aim of this study was to test a protocol for the extraction of high quality genomic DNA from saliva samples obtained with mouthwash and taken from patients with periodontal disease. Materials and methods Saliva samples were taken from 60 patients, then stored at room temperature. DNA extraction was carried out at distinct post-sampling times (10, 20 and 30 days). Evaluation of genomic DNA was performed with spectrophotometry, electrophoresis, and PCR genotyping and sequencing.

To assess the demographic variables, periodontal parameters and to determine the expression of Trefoil factors 2 and 3 and Adrenomedullin in unstimulated saliva samples of periodontally healthy subjects with coronary heart disease and generalised chronic periodontitis subjects with and without coronary heart disease.

The study is a cross-sectional survey investigating the Periodontal health knowledge among patients with fixed orthodontic appliance attending the orthodontic department and the paid section faculty of dentistry Cairo University. The faculty of Dentistry, Cairo University is an open public facility, a tertiary healthcare and a referral center.

This study evaluated the periodontal status of patients suffering from eating disorders (anorexia nervosa and bulimia nervosa). The work hypothesis is that eating disorder patients have a higher risk for periodontal diseases than non-eating disorder subjects.

More than ninety percent of adults in Taiwan are suspected to carry periodontal disease, which causes bad breath, swollen and bleeding gums, plaque and even tooth loss. Half of the patients, however, are ignorance these clinical syndromes because of no obvious pain. A lot of researches show that periodontal disease is related to diabetes mellitus. Periodontal disease causes rise of blood sugar, and more than 3 times as diabetes mellitus patients as healthy people have serious periodontal disease.In this study, the investigators collect periodontal pocket and saliva samples of participants, and selecting six periodontal disease-associated bacteria strains, including Porphyromonas gingivalis (Pg), Fusobacterium nucleatum (Fn), Actinobacillus actinomycetemcomitans (Aa), Treponema denticola (Td), Prevotella intermedia (Pi) and Tannerella forsythia (Tf) as diagnostic markers. Participants will get bacteriostasis mouthwash at mouth 2. The investigators will compare the differences of blood biochemistry value and oral bacteria strains after using the mouthwash.Using real-time PCR and MALDI Biotyper, the investigators will establish the database of oral microorganisms in diabetes mellitus patients, providing periodontal disease clinical markers of high-risk groups and the basis for personal medicine of therapy in the future.

The primary objective of the study is to assess the incidence and severity of the periodontal infection of patients with preeclampsia. The secondary objective of the study is to analyze the relationship between preeclampsia and periodontal infection, using clinical, biochemical and microbiological methods.