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59 active trials for Periodontal Diseases

Expression of Trefoil Factors and Adrenomedullin in Subjects With Chronic Periodontitis and Coronary Heart Disease

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.

Start: October 2019

Periodontal Health Knowledge Among Patients With Fixed Orthodontic Appliance

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.

Start: October 2020

The Effects of Subgingival Air-polishing, as an Adjunct to Non-surgical Periodontal Treatment on Periodontal Parameters and Patient Satisfaction in Patients With Periodontitis

Periodontal disease is serious and global chronic disease. The prevalence of periodontal diseases in United Arab Emirates is not clear but data from Dubai Health Authority showed that one in five patients has received periodontal treatment in recent years. Several studies reported the additional benefits provided by the use of air-polishing devices in combination with ultrasonic debridement in the treatment of gum disease, their use may reduce postoperative pain and discomfort while providing improvement in gum status. The aim of the study is to compare the effect of removing bacterial deposit (biofilm) from deep tooth pocket using combined air-polishing and conventional pocket debridement versus conventional pocket debridement alone on tooth supporting tissue parameters in patients with advanced gum disease (periodontitis). Methodology: A total of 22 patients with advanced gum disease will be randomly allocated to two groups: a control group, which will receive conventional pocket debridement and a test group which will receive ultrasonic debridement with air-polishing (Airflow Prophylaxis Master, EMS, Nyon, Switzerland). Gum measurements will be recorded by a masked calibrated examiner at six points for each tooth and patients' postoperative experience and satisfaction will be assessed using special forms.

Start: July 2020

The Effects of Diode Laser as an Adjunct to Non-surgical Periodontal Treatment on Periodontal Status in Patients With Stage III-IV Periodontitis

Periodontal disease is serious and global chronic disease. The prevalence of periodontal diseases in United Arab Emirates is not clear but data from Dubai Health Authority showed that one in five patients has received periodontal treatment in recent years. Several studies reported the additional benefits provided by the use of diode laser in combination with ultrasonic debridement in the treatment of gum disease. The use of diode laser may debridement of deep pocketing areas while improving healing of gum tissues. The aim of the study is to compare the effect of removing bacterial deposit (biofilm) from deep tooth pocket using combined diode laser and conventional pocket debridement versus conventional pocket debridement alone on tooth supporting tissue parameters in patients with advanced gum disease (periodontitis). Methodology: A total of 22 patients with advanced gum disease will be randomly allocated to two groups: a control group, which will receive conventional pocket debridement and a test group which will receive ultrasonic debridement with diode laser. Gum measurements will be recorded by a masked calibrated examiner at six points for each tooth and patients' postoperative experience and satisfaction will be assessed using special forms.

Start: July 2020

Thiol/Disulphide Homeostasis and Vascular Endothelial Growth Factor Levels in Diabetic Children

The aim of this study to evaluate the vascular endothelial growth factor level and thiol/disulphide homeostasis in saliva of diabetic children with gingivitis.

Start: July 2020

Comparative Clinical Evaluation of Three Different Agents in Reducing Dental Hypersensitivity in Periodontal Patients

The present project will compare the effect of DH reduction using three different dentifrices (Sensodyne Repair and Protect - NOVAMIN technology; Dentalclean Daily Regenerator - REFIX technology; Dentalclean Daily Regenerator - REFIX technology + potassium citrate) in periodontal patients. The evaluation will be in 6 moments: T1 and T2- immediately before and after scaling and root planing (SRP) procedures; T3-after polishing sensitive areas with rubbers cups and the dentifrice determined for each group of patients and T4, 5, 6- After 2, 4 and 8 weeks of SRP. Profissional assessments and patient perception data will be performed.

Start: July 2019

Oral Health and Risk Factors for Oral Disease

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.

Start: January 2018

A Comparison of the Accurate Diagnosis of the Horizontal & Vertical Bitewing Images

The aims of this research are to determine if vertical bitewings will be more effective and more comprehensive for the diagnosis of caries and the level of alveolar bone loss than the horizontal bitewing technique for the patients at King Abdulaziz University over the age of 18. This is a cross sectional study. All the images in this study will be conducted at School of Dentistry, King Abdulaziz University. Each patients will be exposed to 4 horizontal bitewing for posterior teeth ( standard of care ) and 4 vertical bitewing for the same area ( experimental ). The radiographs will be processed digitally. All the x ray will be taken using the standard protection protocol.

Start: April 2020

Periodontal Therapy and Oral-gut-hepatic Axis Cirrhosis: a Randomized Controlled Trial

Periodontitis is common in patients with cirrhosis and may lead to systemic sepsis. 1 Grønkjær et al demonstrated that severe periodontitis predicted higher mortality in patients with cirrhosis. 2 In India, the wide use of oral tobacco, smoking and poor dental hygiene fosters a dual hit to the outcomes of liver disease especially in the setting of liver transplantation. However, a causal relationship between the oral microbiome and liver disease and outcomes is a matter of conjecture. Oral bacterial diseases, such as caries and periodontitis are caused by a consortium of bacteria rather than a single species. These constitute opportunistic infections that occur under the proper circumstances and conditions, e.g., diet, host immune response, complicating systemic or genetic disorders, pH, poor oral hygiene and lifestyle. It is well known that specific bacterial taxa that colonize the oral cavity are associated with oral health and oral diseases or afflictions, such as dental caries, periodontal diseases, endodontic lesions, dry socket, halitosis, and odontogenic infections. Bajaj et al have demonstrated systematic periodontal therapy in cirrhotic outpatients improved endotoxemia, as well as systemic and local inflammation, and modulated salivary and stool microbial dysbiosis over 30 days. Bajaj et al performed another study on comparison of oral and gut microbiota in patients with and without hepatic encephalopathy. There were differences in salivary microbiota composition and inflammatory markers between controls and cirrhotics. The association between periodontitis, oral dysbiosis and the prognosis of cirrhosis remains crucial with relevance to situations like acute-on-chronic liver failure and other inflammation-related adverse events.

Start: March 2020

Clinical Effect of Chlorhexidine Mouthwash After Periodontal Surgery

Chlorhexidine is the gold standard of dental plaque prevention. Recent research have demonstrated that 0.2% Chlorhexidine solutions are more effective than 0.12% and 0.06% Chlorhexidine solutions. Several 0.2% solutions are available on the market. This study aimed to compare effectiveness of two commercially available 0.2% chlorhexidine mouthwashes. Patients, that after initial periodontal therapy, had a need for two periodontal surgeries, will be invited to join. After one surgical session, the patient will receive one 0.2% chlorhexidine solution, and after the next surgical session the patient will receive the other 0.2% chlorhexidine solution. Plaque and gingivitis will be recorded, as well as side effects.

Start: March 2019

Controlled Study Comparing REPaiR® and MIST Therapies for Treatment of Periodontitis

A comparison of laser (REPaiR) compared with minimally invasive surgical therapy for moderate to severe periodontal disease.

Start: May 2018

Quantification of NLRP3 (rs4612666) and CARD8 Gene (rs2043211) in Generalized Chronic Periodontitis Subjects

Quantification of NLRP3 (rs4612666) and CARD8 (rs20432111) will be analysed in the subgingival plaque and blood samples of generalized chronic periodontitis with and without coronary heart disease. The demographic and the periodontal parameters were assessed and correlated with the quantification of NLRP3 (rs4612666) and CARD8 (rs2043211) was analysed with RT-PCR

Start: October 2019

Quantification of CD163 Inflammatory Biomarker in Chronic Periodontitis and Diabetic Subjects

The quantification of CD163 will be analysed in the subgingival plaque samples of generalized chronic periodontitis patients with and without diabetes mellitus. The demographic and the periodontal parameters were assessed and the correlated with the quantification of the CD163. The CD163 gene expression was analyzed with RT-PCR and the quantification of CD163 will be done using ELISA.

Start: February 2018

Antimicrobial Photodynamic Therapy on Periodontal Treatment and Salivary Status of Type 1 Diabetes Mellitus Patients

The aim of this study is to evaluate adjuvant effect of antimicrobial photodynamic therapy in periodontal treatment and salivary status of type 1 diabetes patients.

Start: March 2017

Influence of Smoking on Clinical, Microbiological and Immunologic Parameters in Patients With Aggressive Periodontitis.

Treatment of smoker patients with AgP is considered a challenge to periodontists. To date, only one controlled clinical study (De Genaro Modanese et al., 2016) evaluated the effect of full mouth ultrasonic debridment (FMUD) on smokers with aggressive periodontitis. Its results showed significant improvements in clinical parameters (plaque index PI, bleeding on probing- BoP and probing depth-PD), and immunologic (reductions in interleukin 6- IL-6, tumor necrosis factor- ? TNF-? levels), although the results were more favorable for non-smoking patients. Antimicrobials associated to mechanical therapy has been extensively studied (Hafajee et al., 2003, Heitz-Mayfield, 2006). The association of Amoxicillin and Metronidazole have had good clinical and microbiological results in randomized clinical trials in the treatment of AgP (Casarin et al., 2012, Sgolastra et al., 2012, Keestra et al., 2015). Thus, this study investigates clinical, microbiological and immunological influence of smoking in the periodontal debridement associated to Amoxiciclin and Metronidazole of young individuals with pronounced periodontal destruction, compared with non-smokers individuals.

Start: March 2017

Periodontal Disease, Inflammation and Acute Coronary Syndromes

Recent studies have shown that the systemic inflammation caused by periodontal disease (PD) can determine important changes in the coronary arteries, favoring atherosclerosis progression and development of acute coronary syndromes (ACS). The aim of ATHERODENT study is to assess the interrelation between PD, inflammation and progression of coronary atherosclerosis in patients with ACS. Material and methods: This case-control observational study will enroll 100 patients (group 1 - ACS and associated PD, and group 2 -ACS and no PD), in whom the following data will be collected: (1) demographic and clinical data, (2) cardiovascular risk factors, (3) full characterization of PD markers, (4) systemic inflammatory biomarkers, (5) imaging biomarkers derived from transthoracic echocardiography, computed tomography, coronary angiography, optical coherence tomography and intravascular ultrasound, and (6) assessment of the presence of specific oral bacteria in samples of coronary plaques collected by coronary atherectomy, which will be performed during percutaneous revascularization interventions, when indicated in selected cases, in the atherectomy sub-study. The follow-up will be performed at 1, 3, 6, 12, 15, 18 and 24 months. The primary endpoint of the study will be represented by the rate of major adverse cardiovascular events (MACE rates) in PD vs non-PD patients and in correlation with: (1) the level of systemic inflammation triggered by PD and/or by ACS at baseline; (2) the vulnerability degree of atheromatous plaques in the coronary tree (culprit and non-culprit lesions); and (3) the presence and burden of oral bacteria in atheromatous plaques. Secondary endpoints will be represented by: (1) the rate of progression of vulnerability degree of non-culprit coronary plaques; (2) the rate of progression of atheromatous burden and calcium scoring of the coronary tree; and (3) the rate of occurrence of left ventricular remodeling and postinfarction heart failure.

Start: May 2018

Supporting Oral Self-care of Patients With Periodontitis Through Motivational Interview

The aim of this study was to evaluate the potential additive effect of Motivational Interviewing (MI) on gingival health and self-care. Our hypothesis was that the Motivational Interviewing would result in improved gingival health and self-care compared to prevailing patient education.

Start: May 2014

Hamburg City Health Study - a German Cohort Study

The Hamburg City Health Study (HCHS) is a large, prospective, long-term, population-based cohort study and a unique research platform and network to obtain substantial knowledge about several risk and prognostic factors in major chronic diseases.

Start: February 2016

Post-radiation Dental Disease Amongst Head and Neck Cancer Patients

Background Post-radiotherapy head and neck cancer (HANC) patients are at increased risk of dental caries and periodontal disease due to radiation-related damage to the teeth and salivary glands. Currently the exact aetiology of post-radiotherapy dental disease, and variation in its incidence and severity based on tumour location and radiotherapy dose, is poorly understood. Consequently there is a lack of clear guidance on how HANC patients should be dentally managed both before and after their radiotherapy. Aim The aim of this study is to quantify the relationship between dental radiation dose, 'spared' parotid gland radiation dose, tumour location, and post-radiotherapy dental disease. Methods A prospective cohort study will be undertaken in HANC patients treated with radiotherapy. A total of 215 patients will be recruited over a period of 2.5 years. Participants will be assessed and rendered dentally fit prior to radiotherapy in the School of Dentistry, Belfast. All patients will be followed-up at 6, 12, and 24-months post-radiotherapy. Data to be collected at each visit will include: total number of carious teeth, periodontal disease indices, salivary flow rates, diet, oral hygiene, mouth opening, xerostomia and oral health-related quality of life. Radiotherapy, including individual tissue-dose exposures, will be prescribed by the Clinical Oncology team as per current practice. Doses to the teeth and 'spared' parotid gland will be determined using radiotherapy research software (Non-Clinical Eclipse System sold by Varian Medical Systems UK Ltd). Using appropriate statistical tests, data analysis will determine the relationship between dental disease, radiation dose, and tumour location. Anticipated variation in the incidence and severity of post-radiotherapy dental disease based on the radiotherapy dose and tumour location, will inform the development of a clinical risk-assessment tool that will allow dentists to categorise patients as 'high' or 'low' risk of future disease. Guidelines regarding pre-radiotherapy dental extractions and post-radiotherapy preventative strategies will also be developed and will advise clinicians based on this risk assessment. A micro-costings study will be undertaken to evaluate patient and healthcare costs associated with the diagnosis and management of pre- and post-radiotherapy dental disease.

Start: December 2018