Clinical Research Directory

Evaluation of Implantoplasty in the Treatment of Peri-Implantitis.

The aim of this longitudinal study is to evaluate the clinical impact of implantoplasty in the treatment of peri-implantitis, exploring the potential effect of removing compromised implants on periodontal health and its correlation with the presence of titanium particles in the crevicular fluid. In addition, we seek to investigate changes in the peri-implant microbiological profile before and after implantoplasty, allowing a more comprehensive understanding of the effects of this procedure at both the biological and clinical levels, considering microbiological factors and the relationship with titanium, inflammation and peri-implant health. Forty participants diagnosed with peri-implantitis will be selected (n = 20 in each group) to participate in the study. They will be randomly allocated into two groups, according to the treatment to be performed (implantoplasty group and surgical access group for scaling). Using a millimeter-diameter periodontal probe, the initial clinical parameters of patients with periodontal and peri-implant disease will be evaluated. Biofilm and crevicular fluid will then be collected using sterile paper cones from one implant of each patient in all groups at follow-up intervals of 1, 3 and 6 months for subsequent processing and evaluation of the data. The integration of these analyses aims to offer valuable insights to optimize peri-implantitis treatment strategies, aiming at the health and longevity of dental implants.

Longitudinal Evaluation of Regenerative Treatment of Peri-implantitis Assited by Er,Cr:YSGG Laser: up to 10 Years Follow-up

Peri-implantitis is a pathological condition characterized by the inflammation of peri-implant connective tissues and progressive alveolar bone loss. There is a global concern about the increasing prevalence of this disease, which may affect up to 43% of implants in function. This cohort study will evaluated the long term follow up of a randomized, controlled, double-blind placebo study that evaluated the regenerative treatment of peri-implant diseases with surgical debridement and Er,Cr:YSGG AG laser associated with systemic antibiotics. A total of 80 subjects with peri-implantitis (PD\>5mm, BoP and/or sup, bone loss \>3mm) will be treated reavluated after 10years follow-up. Clinical, radiographic, and microbiological parameters will be recorded at baseline and 120 months follow-up. The primary outcome variable of this trial was be the difference between groups for the change in clinical attachment level from baseline to 6 months. We did consider composite outcomes, although not as the primary outcome. We also aim to evaluate the number and percentage of patients (and implants) reaching the following clinical endpoint for treatment: Probing depth \< 5mm, absence of bleeding on probing and no further bone loss (Heitz-Mayfield and Mombelli, 2014). The secondary variables will be the differences between groups in PI, GI, BOP, SUP and PD and microbial profile.

Monitoring of Implant Diseases: Diagnosis and Monitoring With aMMP-8 Test Technology

68 patients underwent the aMMP-8 chair-side test as well as clinical traditional measurement methods. Those who had one or more implants in their mouth were selected as patients. The condition of the attachment tissues of these implants is monitored at a control visit after five years.

Evaluation of Hydrogel Application in the Treatment of Periodontitis and Peri-implantitis

To date, systemic/local antibiotics, antimicrobials, laser application, and probiotics have been used as adjuncts to improve the outcome of non-surgical periodontal treatment for both periodontitis and peri-implantitis patients. H42® hydrogel, obtained by combining a high molecular weight hydrogel with type I collagen, is a collagen paste for regenerating periodontal/peri-implant pockets caused by periodontitis/peri-implantitis. This study aimed to clinically, biochemically, and radiologically evaluate the effect and reliability of hydrogel application into the pocket in addition to non-surgical periodontal treatment in the treatment of periodontal and peri-implant pockets. Fifteen patients with stage 2 periodontitis, each with 30 teeth and 30 implants with 5-8 mm pocket depth in the contralateral quadrants, and a total of 30 patients, will be equally divided into two groups. The test group will receive non-surgical periodontal treatment followed by H42 hydrogel application (Hydrogel Oral- 3 syr 0.4 cc/syr), while the control group will receive only non-surgical periodontal treatment. All patients will undergo the same procedure of non-surgical periodontal treatment

SPiT-frequency II_Peri-implantitis

This is an interventional clinical study on the peri-implant treatment necessary to improve the clinical conditions surrounding dental implants registered with peri-implant inflammation. The focus of this double-armed, examiner blinded, controlled, randomized clinical trial is to examine the effect of short-term increased frequency of a Non-surgical protocol on implants diagnosed with peri-implantitis. The study is a part of a project assessing the frequency of supportive peri-implant therapy. The current is on non-surgical treatment of peri-implantitis (inflammation and exposed implant surface). The other study is a RCT on treatment of peri-implant mucositis (inflammation and no attachment loss at the implants) and secondary prevention of peri-implant mucositis (REK 790097). Exposure of rough surface may dramatically change the frequency of maintenance needed to improve the inflammatory condition. Thus, a segregation between adequate and low bone level at the implant is necessary. Subjects with more than one implant and both diagnoses, may be enrolled in both studies, following the frequency of treatment randomized in the peri-implant mucositis study

SPiT-frequency I_Peri-implant Mucositis

This is an interventional clinical study on the peri-implant treatment necessary to improve the clinical conditions surrounding dental implants registered with peri-implant inflammation. The focus of this double-armed, examiner blinded, controlled, randomized clinical trial is to examine the effect of short-term increased frequency of a SPiT (supportive peri-implant treatment) protocol on implants diagnosed with peri-implant mucositis. The study is a part of a project assessing the frequency of supportive peri-implant therapy. The current is on treatment of peri-implant mucositis (inflammation and no attachment loss at the implants) and secondary prevention of peri-implant mucositis. The other study is a RCT on non-surgical treatment of peri-implantitis (inflammation and exposed implant surface) (REK 790240). Exposure of rough surface may dramatically change the frequency of maintenance needed to improve the inflammatory condition. Thus, a segregation between adequate and low bone level at the implant is necessary. Subjects with more than one implant and both diagnoses, may be enrolled in both studies, following the frequency of treatment randomized in the peri-implant mucositis study.

Effectiveness of Zirconia Glaze Removal and Polish in the Treatment of Peri-implant Mucositis

This clinical trial is being conducted to study peri-implant mucositis (inflammation in the gums around dental implant that does not extend into the implant-supporting bone). There are currently no available treatment options able to provide long-term resolution of implant gum inflammation even with our current gold standard treatment of non-surgical cleanings and oral hygiene instructions. The purpose of the study is to compare the effect of crown glaze removal and subsequent polishing in addition to mechanical debridement compared to only mechanical debridement on the implant affected by implant gum inflammation. In this study, participants will be randomized (put into a group by chance) into one of 2 study groups, groups A and B. Group A: The implant crown will be cleaned with titanium scaling instruments and powered instruments. The screw-retained crown will be removed and the remaining build-up on the crown will be photographed. The crown will then be sent to a lab technician who will remove the glaze and polish the crown only in the areas that sit under the gums. Group B: The implant crown will be cleaned with titanium scaling instruments and powered instruments. The screw-retained crown will be removed and the remaining build-up on the crown will be photographed. The crown will then be sent to a lab technician to perform a superficial cleaning only. In both groups, the crown will be placed back on the implant and customized oral hygiene instructions will be provided. The study will require four appointment. Appointment #1 is the screening appointment and will take 30-60 minutes. Appointment #2 is when treatment is delivered and will occur within 4 weeks of appointment #1. Appointment #3 is for the short-term follow-up and will occur within 60-70 days of appointment #2. Appointment #4 is for the long-term follow-up and will occur within 12-13 months of appointment #2. All these appointment will be in an outpatient setting at the institutional graduate periodontics clinic. A total of 2 x-rays will be taken of the implant. One will be taken during appointment #1 to assess the bone around the implant. One will be taken during appointment #2 to ensure that the crown is fully seated when the crown is re-inserted. The following information will be collected in appointment #1: gum measurements around the implants, how tight the implant contacts adjacent teeth, when the crown was delivered, previous cleanings around the implant, age, sex, gender, previous systemic antibiotic use in the last 2 weeks, smoking habits, presence of diabetes and HbA1C values. At appointments #2, 3, and 4, the following information will be collected: plaque around implant, gum measurements around implants, previous systemic antibiotic use in the last 2 weeks, smoking habits, presence of diabetes and HbA1C values, gum fluid samples around the implant crown. In appointment #4, additionally, information on how the implant has been cleaned throughout the year will be collected.

Risk Assessment of Proximal Contact Loss Between Implant-supported Prostheses and Adjacent Teeth.

In this study, we collected and analysed the review results of 100 patients over 18 years of age who received implant fixed restorations in the Department of Stomatology of the First Hospital of Nanjing, China. The aim was to investigate the incidence of loss of contact between implant restorations and adjacent teeth and its influencing factors. Our findings may provide better insights for treatment planning and prevention of PCL.

Salivary Minerals in Patients With Peri-implantitis

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.