Clinical Research Directory

Effect of PEEK and Titanium Framework Reinforcement on Marginal Bone Loss Around Implants Supporting a Fixed All-on-four Prosthesis in Completely Edentulous Mandibles

A fixed all-on-four prosthesis will be constructed for the lower arch for each patient and the marginal bone loss will be evaluated at baseline, 3,6,9 and 12 months.

Autogenous Mesenchymal Stem Cell Culture-Derived Signalling Molecules as Enhancers of Bone Formation in Bone Grafting

This study aims to evaluate bone formation in grafts in terms of its quality (density), quantity (volume) and maturation obtained with the application of a tissue-engineered bone grafting compound containing concentrated autogenous cell-culture medium (CM) and a synthetic bone substitute. The present study was designed as an experimental prospective split-mouth randomized controlled clinical trial. After protocol approval by the Research Ethics Committee, a total of 20 consecutive participants in need of maxillary reconstruction aiming implant-supported oral rehabilitation will be invited to join the study. To collect autogenous adipose tissue-derived mesenchymal stem cells (hASCs), an outpatient lipoplasty procedure at the abdominal area of each patient will be performed. To isolate and expand hASCs from the lipoaspirate, specific cell culture protocols will be followed, resulting in cultured viable cells and their conditioned medium (CM). Cells and CM will be then separated by a sequence of filters and centrifugation, and isolated CM will be frozen. ELISA will analyze the presence of chemokines and their concentration in CM before grafting. Following pre-op surgical planning, both maxillary sinuses of each patient will be grafted internally applying a lateral window to each sinus. The bony floor of the test maxillary sinus will be augmented with synthetic bone substitute (BoneCeramic™ 1-2 mm) mixed with 10 to 15 ml of CM (test). The control site will receive bone substitute with saline. Lateral windows in both sinuses will be then closed with a collagen membrane (Bio-Gide™). After 6 months, first-stage implant surgery will be performed placing 6 implants in each patient. Registration of implant stability by manual torque wrench will be performed. Also, bone biopsies from each drilled implant site will be collected for histology, histomorphometry and immunohistochemistry (RT-PCR). Tomographic evaluation of the bone formation will include cone beam computed tomographies (CBCTs) at pre-operative \[Baseline\], 90 \[T1\] and 180 \[T2 = implant placement\] days for bone 3D image analysis.

Assessment of Customized 3D Zirconium Versus Titanium Mesh for Anterior Maxillary Ridge Augmentation With Delayed Implant Placement

The aim of the present study is to assess the customized 3D zirconium versus titanium mesh for anterior maxillary ridge augmentation with delayed implant placement.

Implant-supported Rehabilitation With SPAL Technique or Soft Tissue Augmentation

The primary aim of the present study is to compare the Sub-periosteal Peri-implant Augmented Layer (SPAL) technique and soft tissue augmentation (STA), performed simultaneously to implant placement, in terms of (i) implant survival rate and (ii) health/disease condition of the peri-implant tissues at 6 and 12 months following implant loading. The secondary aim of the project will be to compare the SPAL technique and STA in terms of intra- and post-operative morbidity. The study is designed as a single-blind, parallel-arm, randomized clinical trial. Patients will be recruited and treated at the Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (A.U.S.L.) of Ferrara, Italy, and one University center (Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Italy). Each patient will contribute the study with one sextant ("experimental sextant"). Each eligible patient will be randomly assigned to receive SPAL technique or STA according to a computer-generated randomization list. Surgical procedures will be performed by experienced periodontal and implant surgeons. Two calibrated, blinded examiners will take care of the assessment of clinical and radiographic parameters, Case Report Form (CRF) filling, as well as data extraction from CRFs for the preparation of the study database. The proportion of patients free from peri-implantitis at 12 months following loading will be the primary outcome variable of the study. The proportion of patients with complete resolution of the bone dehiscence (BD), dimensional variations and 12-months characteristics of BD, and patient-reported outcome measures will be the secondary outcomes. The design will test two hypotheses, with a non-inferiority trial in terms of primary outcome and a superiority trial in terms of secondary outcomes.

Grafting of the Peri-implant Bony Defects Around Immediate Implants Using Xenogenic Versus Alloplastic Sticky Grafts: Randomized Controlled Clinical Trial

In patients with a single non restorable tooth, does filling the peri-implant buccal gap with alloplastic sticky grafts result comparable results compared to xenogenic sticky grafts?

A Randomized Control Trial Phase (IIIa) Unicentric, Placebo Controlled, Double-Blinded Efficacy and Safety of Topical Alendronic Acid on Alveolar Bone Remodeling After Tooth Extraction

The purpose of the study is to determine the efficacy and safety of the effects of a topical medication on bone remodeling after dental extraction, in order to establish whether such treatment can be a new therapeutic option for said pathology. The participation of 60 patients is expected, who will be divided randomly in equal proportions into two groups. Treatment groups: Group A (30 patients): medication administered topically. Group B (30 patients): placebo with characteristics equal to the drug under investigation.

Evaluation of Bone Gain Using Customized 3D Zirconia Barrier Versus Titanium Mesh

Evaluation of clinical and radiographical amount of bone gained using customized 3D printed zirconia barrier compared to titanium mesh in combined ridge defect at the esthetic zone.

Evaluation of Regenerative Potential in Horizontal Bone Loss Using VCMX Along With LASER Therapy

Background- Periodontitis, an inflammatory disease of the periodontium, is one of the major causes of tooth mortality. Of all the bone destruction patterns that are present in periodontitis, horizontal bone loss is the most common. Therefore, treatment modalities that help in rebuilding horizontal defects are vital in total periodontal reconstruction. Rationale- The supracrestal bone regeneration in cases of horizontal bone loss has remained a mirage with very little recorded success. Volume stable collagen matrix(VCMX), is a porous, cross-linked collagen matrix of porcine origin designed to facilitate cell and vascular ingrowth and soft-tissue volume augmentation, may be beneficial in maintaining the supracrestal space and may overcome the limitation of bone regeneration in horizontal defects. Evidence has shown that Low level laser therapy(LLLT) based on principal of biostimulation of osteoclastic cells, can have a positive effect on the regeneration of supracrestal bone in horizontal bone destruction. So, this study will be first of its kind using combination of VCMX with LLLT to assess regenerative outcome in treatment of horizontal bone destruction in patients with periodontitis. Objectives: To assess clinical and radiographic regenerative outcome of periodontal tissues using LLLT and placing VCMX with single flap approach(SFA) in treatment of horizontal bone loss as compared to LLLT and SFA. Method: A total of 60 patients will be randomly divided into three groups: Test Group 1: VCMX +LLLT +SFA, Test Group 2:LLLT+SFA, and Control group: SFA. Periodontal parameters will be evaluated at baseline, 3, 6, and 9 months. CBCT will be evaluated at baseline and 9 months. Expected outcome: VCMX with Laser could achieve supracrestal bone regeneration in horizontal bone loss.