Active clinical trials for "Periodontal Diseases"

Peri-implantitis is an infectious disease that resides in the mucosa surrounding dental implants and also affects the supporting bone. Because the number of implants placed in everyday clinical practice is continuously increasing, it is reasonable to anticipate an increasing prevalence of peri-implantitis. However, from the literature there is very little reliable evidence suggesting which could be the most effective interventions for treating peri-implantitis. The primary objective of this controlled clinical study is to evaluate the microbiological effect of decontamination of the implant surface during the surgical treatment of peri-implantitis using a chlorhexidine or placebo solution. The secondary objectives are to assess both the clinical and the microbiological effectiveness of treatment of peri-implantitis. It is hypothesized that rinsing of the implant surface using a 0.12% chlorhexidine solution does not lead to better microbiological and clinical results compared to rinsing with a placebo solution. The present study is a double-blind, placebo-controlled, randomized clinical trial. Adult patients with at least one endosseous implant in the oral cavity with clinical and radiographical signs of peri-implantitis will be included in this study. Implants with peri-implantitis lesions will be surgically exposed, followed by mechanical cleansing using curettes and gauzes and cotton pellets soaked in saline followed by either 1 minute of rinsing with a placebo solution (saline with appearance of chlorhexidine) (control group) or 1 minute of chemical cleansing using 0,12% chlorhexidine + cetylpyridinium chloride (CPC) without alcohol (Perio-aid®) (test group). After 1 minute of saline rinsing the gingival flap will be returned slightly apical (in order to reduce pockets) and will be firmly sutured. For both groups the surgery is followed by 2 weeks of mouthrinses with 0,12% chlorhexidine + Cetylpyridinium Chloride (CPC) without alcohol (Perio-aid®) two times daily during 30 seconds. The main study parameter is the microbial composition of the biofilm on the dental implant surface. Secondary study parameters are bleeding on probing, probing pocket depth, suppuration on probing, microbiological composition of the peri-implant sulcus, radiographic marginal bone level on standardized intraoral radiographs, presence of plaque, presence of calculus, marginal soft tissue recession implant failure, complications and adverse events.

The objective of this study is to evaluate Photodynamic Therapy (PDT) as adjunct on non surgical periodontal therapy in patients with type 2 diabetes. A total of 40 individuals will be selected and divided in two groups. On the treatment stage, the control group (Group C) will receive standard non surgical periodontal treatment. The Test Group (Group T) will be treated with PDT as an adjunct to non surgical periodontal treatment. The treatment will be repeated 4 times in two weeks, followed by dental prophylaxis every 15 days until accomplish 3 months. The follow-up will be done for 6 months. The clinical parameters measured will be: plaque index, pocket depth, bleeding on probing, relative clinical insertion level and suppuration. In addition, the evaluation of crevicular fluid volume and the levels of IL-1, TNF-α, subgingival microbiota by the hybridization DNA-DNA Checkerboard technique. The investigators expect to find identical or better results for the test group.

The main objective of this study is to evaluate the effect of treatment periodontal endothelium-dependent artery of the arm in patients with acute myocardial infarction with ST-segment elevation undergoing primary coronary intervention.

The purpose of the study is to evaluate the effect of the photodynamic therapy in periodontal patients

This research project is a multi-center double-blind, parallel, randomized, controlled clinical trial design comparing the efficacy of dental scaling and root planing to control treatment (superficial cleaning) for the prevention of preterm birth in pregnant women with periodontal disease.

Periodontitis is a polymicrobial, inflammatory condition affecting tooth-supporting tissues. It is characterized by a progressive loss of epithelial attachment and resorption of alveolar bone, which can lead to tooth loss. Epithelial-mesenchymal transition (EMT) has been proposed as a reversible process that shifts the cell phenotype from epithelial to mesenchymal-like and may be involved in the process of periodontal inflammation either completely or partially. Long non-coding RNAs (lncRNAs) are a large class of regulatory transcripts longer than 200 nucleotides lacking evident protein-coding potential. Studies have shown that lncRNA dysregulation plays key roles in human diseases, including cancer, by modulating the epithelial-mesenchymal transition (EMT). The involvement of lncRNAs markers in the pathogenesis of periodontal disease induced EMT has not been studied thoroughly and have created a gap in the knowledge.

Brief Summary: This is a randomized controlled clinical trial (RCT). After signing the informed consent, patients satisfying the inclusion criteria will undergo supragingival and subgingival professional oral hygiene of both arches performed with ultrasonic instrumentation, manual instrumentation with Gracey curettes and air polishing with glycine powder. After that, the sample will be randomly divided into 2 groups based on the domiciliary assigned treatment: Aftoral® Oral Gel solution with Hyaluronic Acid, Xylitol and glycerophosphoinositol as a domiciliary application for 15 days. Unidea® Chlorhexidine digluconate Mouthwash 0,20% administration as a domiciliary application for 15 days. The study will last 6 months. Patients will be visited at: T0, after 1 month from T0 (T1), after 3 months (T2), after 6 months (T3). Professional hygiene will be performed again at T2 and T3. At each recall session were collected a satisfaction questionnaire of the products (taste, smell, consistency, persistence and ease of application) and the following periodontal clinical indices, using a Periodontal probe on each site: Gingival Recession (R) PPD (Probing Pocket Depth), BOP% (Bleeding on Probing), CAL (Clinical Attachment Level), PCR% (Plaque Control Record), Tooth Mobility.

In this randomized, controlled study, 18 patients with peri-implantitis were included. A total of forty dental implants were debrided with either ultrasonic instruments (test, n=20) or plastic scaler (control, n=20). Gingival recession depth (RD), keratinized tissue width (KTW), probing depth (PD), Gingival Index (GI) were evaluated at baseline and after 6 months. CBCT radiographs were used to evaluate peri-implant bone loss. Supportive and nonsurgical periodontal therapies were firstly consulted to reduce the inflammation, occurring due to the surgical treatments of the defects. The formation of bacterial biofilm on implant surfaces was removed by ultrasonic scaler and air polishing using abrasive powders or conventional plastic scaler with klorhegsidin combination.

The gold standard for the treatment of gingival recession, is the coronal repositioning of the flap associated with the subepithelial connective tissue graft. The acellular dermal matrix (ADM) has been used as a substitute a subepithelial connective tissue graft in periodontal plastic surgery and mucogengivais, and has achieved similar results. The use of ADM has the advantage of avoiding possible pre and postoperative complications, as well as overcome the limitations presented by autograft. The different surgical techniques used for root coverage seek predictability and success. For this, besides the type of incision placements flap and graft are of utmost importance because the healing benefit and outcome. The aim of this study is to compare two surgical techniques for root coverage and evaluate which one provides better cosmetic results and less morbidity . 20 adults , nonsmoking patients , showing multiple bilateral gingival recessions , class I or II Miller located in canine, first and second premolars are selected. Both techniques use the ADM as a graft. However , in one Quadrant partial flap will be held together with relaxing incisions through an incision intrasucular , ADM will be positioned 1 mm apical to the cementoenamel junction (CEJ) and the flap will be positioned 1 mm coronal CEJ. In the opposite quadrant a minimally invasive technique periosteal envelope above does not use relaxing incisions , preserves the buds will be held , as well as avoiding any scars, the graft will be used to ADM. The clinical parameters (probing depth, clinical attachment level, bleeding on probing index, height and width of the gingival retraction and height and thickness of keratinized gingiva) will be evaluated 2 weeks after the basic periodontal therapy and after 6 and 12 months to surgical procedures. In addition, measurements of photographic gingival recession with the aid of software will be performed.

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