View clinical trials related to Peri-implantitis.
Filter by:Patients included in the study will be recruited after arriving at the Faculty of Dentistry of the University of Zagreb. During the clinical examination, the patient's periodontal status (bleeding during probing, and the depth of the pockets around the implant) and a control x-ray will be taken to check bone loss. Saliva sampling will occur at 3-time points, when establishing the diagnosis of periimplantitis, before the start of therapy, and at the first control after treatment.
The aim of this study is to determine the effect of regular antibacterial photodynamic Lumoral® treatment on gingival health and plaque volume, and anti-inflammatory effect of daily double light therapy on implant teeth. The study will use a medical device containing a light-activated Lumorinse® mouthwash and a Lumoral® light activator.
The main aim of the present study is to investigate implant success rate after 5 years of function of immediate (Test group; within 7 days of implant placement) versus delayed (Control group; 8 weeks after implant placement) loading of two-pieces zirconia implant, placed in pristine bone without bone regeneration. Implant success rate will be defined according to Buser's criteria. Secondary endpoints: Marginal bone level (MBL) evaluation by means of standardized radiographs; Clinical evaluation of biological (e.g. Plaque Index, PI; Probing Pocket Depth, PPD, Bleeding on Probing, BOP; suppuration upon probing/palpation) and prosthetic/technical complications; Clinical evaluation of soft tissue width, keratinized tissue, marginal and interproximal soft tissue recession; Patient reported outcome measures (PROMs) by questionnaire administration:
This prospective parallel, double-blind, four-arm randomised controlled clinical study is planned to assess the difference in the level of the inflammatory biomarkers expressed following the placement of the first dental implant in patients with history of periodontitis (successfully treated) and healthy controls without the disease, during implant osseointegration period. The subjects in both groups will also be randomised to receive one of the two types of implants provided which have different surface treatment.
Peri-implantitis is an inflammation of bacterial etiology characterized by inflammation of mucous membranes and bone loss around the dental implant. A specific dental plaque bacteria could stimulate host cells, including the junctional epithelium, to secrete a range of pro-inflammatory cytokines involved in initiating the epithelial-mesenchymal transition (EMT) process. EMT has been described as the transdifferentiation of epithelial cells into motile mesenchymal cells. Moreover, cytokines and bacterial products have been highlighted as EMT-predisposing factors. The EMT process could render epithelial cells to lose their cell-cell adhesion and cell polarity that lend these cells to lose their function as an integrated epithelial barrier. E-cadherin is a calcium-dependent cell adhesion molecule that establishes cell-cell adhesion that plays a critical role in maintaining a barrier function in the human epithelium, including gingiva. The loss of E-cadherin is one of the most common biological indicators for EMT. In contrast, vimentin is an intermediate filament expressed in mesenchymal cells and is a canonical marker for EMT, which also promotes cell motility and an invasive phenotype. It is largely reported that EMT is regulated by various transcriptional factors such as Snail Family Transcriptional Repressor SNAIL1 and SNAIL2, zinc-finger E-box-binding (ZEB)1 and ZEB2 and TWIST transcription factors that suppress epithelial marker genes, and activate genes related with the mesenchymal phenotype. Recently, in vivo study has investigated the level of EMT markers in the gingival tissues of periodontitis patients. It was found that the expression of E-cadherin was downregulated while vimentin expression was upregulated. Despite the similarities and differences between the pathogenesis of periodontal and peri-implant diseases, the role of dental biofilm in the etiopathogenesis of the aforementioned diseases was studied largely. While it is now accepted that EMT may potentially play a role in periodontal disease pathogenicity, the possible role of EMT in the disintegration of the peri-implant epithelial barrier and the pathogenesis of peri-implant disease has not yet been investigated.
The purpose of this study is to evaluate the clinical efficacy of ultrasonic instrumentation versus the use of an erythritol jet in the treatment of peri-implantitis.
- Capture of the potential risk factor "lack of band of keratinised mucosa" over a period of up to 5 years. - Recording of peri-implant inflammatory processes in study participants that are not recorded during normal tooth cleaning - Registration of the extent of radiographic bone loss. Bone resorption through analysis of existing X-ray images - Individual therapy recommendation/individual supportive peri-implant care in case of peri-implant inflammation - The present study was specifically designed to investigate the effect of reduced width of keratinized mucosa (KM) on the secondary prevention of peri-implant mucositis and peri-implantitis in patients attending a supportive peri-implant care program (SPIC) over an observation period of up to five years.
Peri-implantitis is a plaque-mediated inflammatory condition featured by progressive bone loss. This entity jeopardizes the longevity of dental implants, thus impacting negatively on the quality of life of patients. Moreover, peri-implantitis is suggested to lead to an increased systemic status of inflammation. This may rise the susceptibility to experience life-threating conditions. Therefore, peri-implant infections must be promptly diagnosed and eliminated. Aiming at resolving the inflammation, several options are advised to remove the infection. Accordingly, implant removal or therapeutic manoeuvres to stablish a healthy ecosystem in the peri-implant environment have been suggested. While the former proved being more predictable, the later demonstrated being more conservative. Indeed, implant removal is commonly associated with regenerative procedures of the alveolar bone deformity that often demand time and is more costly. Anyways, disease severity, implant expendability for biomechanical reasons or esthetic demand seem to be few of the leading aspects in the decision-making process on maintaining or extracting implant showing peri-implant lesions. Supportive maintenance care (SPT) was shown to be key in preventing disease recurrence. Nonetheless, the compliance of these patients is often erratic. In fact, it is yet unknown the rate of compliance after therapy. Therefore, the goal of this study is to assess the rate and confounders for compliance.
The aim of the research is to evaluate the clinical outcome of short dental implants, characterized by a new macro-structural design and inserted in the upper or lower jaw in patients with reduced bone volume. The clinical outcomes will be compared for different surface treatments of implant neck and those of prosthetic components.
Peri-implantitis is a non-linear and accelerating pattern of loss of supporting bone tissue associated with clinical signs of inflammation and increased probing depths compared to baseline measurements. It can present as an asymptomatic condition with infection and fast progression of bone resorption or clinically symptomatic with mucosal inflammation, redness, edema, mucosal enlargement, bleeding on probing (BOP), suppuration, increased probing depth, and radiographic bone loss. The host immune defense against bacterial challenge is responsible for the damage, and the local immune-inflammatory process is associated with disrupted bone remodeling. New studies looking for predictive and accurate early biomarkers for this pathology have the utmost relevance. David Baltimore et al. proposed a feedback loop involving miRNA-146a and TLR signaling, which has been shown to be up-regulated in inflammatory diseases such as osteoarthritis and rheumatoid arthritis. miRNA-146a and miRNA-155 were the first miRNAs identified to be induced in immune cells stimulated by TLRs and proinflammatory cytokines. Precision medicine uses molecular research and different biomarkers, population studies, and big data analysis to recreate complex disease models. Several studies have compared the miRNA profiles of patients with periodontitis with healthy patients. Although periodontitis and peri-implantitis share many features, researchers' findings of periodontitis are not necessarily applicable to peri-implantitis. In fact, based on emerging evidence, peri-implantitis, and periodontitis exhibit several key differences, including their histopathological and molecular characteristics. Considering the aforementioned analysis, inflammatory miRNAs may be differentially expressed in peri-implantitis tissue compared with healthy gingival tissue. This study will investigate the gene expression levels of miRNA-146a and miRNA-155 and their correlation with inflammatory levels of their target genes in human gingival tissue surrounding dental implants diagnosed with peri-implantitis and health.