Clinical Research Directory

Clinical Performance of Nobel N1 System

The purpose of the study is to evaluate whether N1 dental implants are successful when a final crown is placed on them at 6 weeks from implant placement surgery.

Single _ Drill Vs Full Sequence Guided Implant Placement

This randomized clinical trial aims to compare the accuracy of single-drill (pilot-guided) computer-guided implant surgery versus full-sequence computer-guided dental implant placement. The study evaluates clinical and radiographic outcomes, focusing on apical, angular, coronal, and depth linear deviations using post-operative cone-beam computed tomography (CBCT) superimposition.

A Clinical Study of the TSX Dental Implant System (Xpresso)

A prospective, observational, multicenter study where 62 patients needing implants in the maxilla or mandible will be enrolled. The patients will be restored with a final prosthesis no later than 4 months following implant placement surgery. The patients will come back for follow-up evaluations yearly for 2 years.

An Observational Study of the T3 Pro Dental Implant System

A prospective, observational, multicenter study where 60 patients needing implants in the maxilla or mandible will be enrolled. The patients will be restored with a final prosthesis no later than 4 months following implant placement surgery. The patients will come back for follow-up evaluations yearly for 2 years.

Evaluation of Enamel Matrix Derivative in Immediate Dental Implants in the Mandibular Molar Region

This randomized clinical trial will evaluate the effect of using an enamel matrix derivative during immediate dental implant placement in the mandibular molar region. Patients who require extraction of a non-restorable mandibular molar and immediate implant placement will be randomly assigned to receive an implant placed with enamel matrix derivative or without enamel matrix derivative. Clinical and radiographic outcomes, including implant stability and peri-implant bone changes, will be assessed over a follow-up period of six months. The results of this study aim to determine whether the use of enamel matrix derivative improves osseointegration and healing around immediate dental implants.

Tissue Preservation in Immediate 1C Implants Using an Anatomical Prefabricated Healing Abutment

The goal of this clinical trial is to evaluate whether an anatomical prefabricated healing abutment (AHA) improves tissue preservation and clinical outcomes following immediate implant placement after tooth extraction in adults. Although immediate implant placement is a well-established treatment for replacing missing teeth, healing can result in changes to the surrounding bone and soft tissues that may affect the esthetic appearance, function, and long-term stability of the implant-supported restoration. This study will compare an anatomical healing abutment, designed to mimic the natural tooth emergence profile and support peri-implant tissues during healing, with a conventional healing abutment. The primary objectives are to determine whether the AHA better preserves soft tissue contours and alveolar bone, improves implant positioning accuracy and tissue stability during healing, and differs from a conventional healing abutment in complications or adverse events. Eligible participants will be adults requiring extraction of a hopeless tooth in the posterior maxilla or mandible who are suitable candidates for immediate implant placement. Following tooth extraction and implant placement, participants will receive either an anatomical prefabricated healing abutment or a conventional healing abutment and will return for scheduled follow-up visits over approximately 12 months to assess healing, implant stability, and changes in the surrounding hard and soft tissues. Researchers will collect clinical measurements, digital intraoral scans, photographs, and radiographic images throughout the study. Additional research imaging will be used to generate three-dimensional models to measure tissue volume changes and implant position accuracy. Specialized software will compare changes between the two groups over time. Safety will be evaluated by monitoring participants for complications, discomfort, inflammation, implant-related problems, and other adverse events throughout follow-up. All procedures will be performed by trained dental professionals using established clinical protocols. The results may improve understanding of how healing abutment design influences tissue preservation after immediate implant placement and help optimize future implant therapy by supporting better functional, esthetic, and long-term outcomes.

Changes in Oral Health-related Quality of Life (OHRQoL) During Full Arch Implant Treatment

Full-arch implant-supported fixed dental prostheses are a widely accepted treatment for edentulous patients, with high long-term implant survival rates. However, further research is needed on longer-term patient satisfaction and on the psychosocial impact of this treatment on patients' daily life and functioning. Assessing patient-reported outcomes - oral health-related quality of life (OHRQoL) and patient satisfaction - allows the impact of full-arch rehabilitation on patients to be evaluated.

Soft Tissue Augmentation Around Dental Implants Using Connective Tissue Graft, Submerged Tenting Abutment, or Sub-crestal Implant Placement

Peri-implant soft tissue thickness is an important determinant of the long-term stability and success of dental implants. Patients with a thin peri-implant soft tissue phenotype are at increased risk of soft tissue recession, marginal bone loss, and compromised esthetic and functional outcomes. Subepithelial connective tissue graft (SCTG) is considered the gold standard for soft tissue augmentation; however, it requires harvesting tissue from the palate, increasing surgical complexity, operative time, and postoperative morbidity. Less invasive approaches, including submerged tenting abutments and subcrestal implant placement, have been proposed as alternatives to improve peri-implant soft tissue dimensions while reducing patient morbidity, but direct comparative clinical evidence remains limited. This investigator-initiated, single-center, randomized, parallel-group clinical trial will compare three approaches for peri-implant soft tissue augmentation in patients with a thin peri-implant soft tissue phenotype requiring a single dental implant in the posterior mandible. Eligible implant sites will be randomly assigned in a 1:1:1 allocation ratio to receive either subepithelial connective tissue grafting, submerged tenting abutment placement, or subcrestal implant placement during implant surgery. The primary objective is to compare changes in peri-implant soft tissue thickness using three-dimensional digital intraoral scanning over a 12-month follow-up period. Secondary objectives include evaluation of keratinized tissue width, clinical soft tissue thickness, histological characteristics of peri-implant soft tissue, peri-implant crestal bone level changes, postoperative pain, operative time, patient-reported satisfaction, and postoperative complications. The results of this study are expected to provide evidence regarding whether minimally invasive treatment approaches can achieve clinical outcomes comparable to connective tissue grafting while reducing surgical morbidity and improving patient-centered outcomes.

Soft Tissue Volume Changes in Posterior Socket Sealing Abutment.

The aim is to clinically evaluate the effect of the alveolar sealing technique using a customised abutment on soft tissue volume changes following molar extraction and immediate dental implant placement. Thirty patients in ASA I-II health status who require immediate post-extraction implant treatment in the molar area were recruited after giving their informed consent, and were randomly allocated to two parallel groups (customised abutment vs. conventional abutment). The randomisation list was generated with the List Randomizer tool (Random.org), and allocation was performed by a secretary external to the research team after implant placement. The soft tissue status is recorded before and 6 months after treatment by means of a digital impression taken with the same intraoral scanner. The patient completes a 7-question questionnaire on their perception of the therapeutic process and the final result. A comparative volume measurement is made by digitally superimposing the two mesh files obtained before and 6 months after treatment. Digital models are anonymised and measured by an independent outcome assessor blinded to group allocation. Statistical data are analysed by an external statistician.

Evaluation of Autogenous Bone Graft on Immediate Dental Implant Osseointegration Using Piezosurgery

This clinical study aims to evaluate the clinical and radiographic outcomes of immediate dental implant placement in mandibular premolar sites. Patients requiring extraction of mandibular premolars will receive immediate implant placement, with or without autogenous bone grafting, according to the study protocol. When indicated, autogenous bone graft will be harvested using piezosurgery during the implant procedure. Participants will be followed up clinically and radiographically to assess implant stability, marginal bone level changes, and peri-implant tissue conditions over a defined follow-up period. The results of this study may help determine the effectiveness and predictability of immediate implant placement in mandibular premolar regions.

Alveolar Ridge Splitting With Simvastatin/PRF Composite and Simultaneous Implant Placement

This randomized controlled clinical trial evaluated the effectiveness of platelet-rich fibrin (PRF) and a simvastatin/PRF composite combined with a xenogeneic bone graft during alveolar ridge splitting with simultaneous implant placement in patients with horizontal alveolar ridge deficiency. Twenty-one participants were randomly allocated into three groups: a control group receiving xenogeneic bone graft alone, a PRF group receiving xenogeneic bone graft blended with PRF, and a simvastatin/PRF group receiving xenogeneic bone graft blended with a simvastatin/PRF composite. Clinical and radiographic outcomes were assessed to compare horizontal and vertical bone gain, bone density, and keratinized tissue width after treatment.

Flap Vs Flapless Technique for Delayed Implant Placement in the Maxillary Esthetic Zone

This randomized comparative clinical trial aims to evaluate the clinical, radiographic, and esthetic outcomes of flap versus flapless techniques for delayed dental implant placement in the maxillary esthetic zone. Twenty patients requiring implant placement in the maxillary anterior or premolar region will be randomly allocated into two equal groups. Group I will undergo implant placement using the conventional flap technique, while Group II will receive implant placement using the flapless technique. Clinical outcomes including postoperative pain, edema, surgical insertion time, and implant stability will be assessed. Radiographic evaluation will include peri-implant bone quantity, bone quality, and crestal bone loss. Follow-up examinations will be performed immediately after surgery and at 1, 3 and 6 months postoperatively.

PMCF Study on The Performance and Safety of ON DENT® PMMA Discs/Blocks and Resin Products for Temporary Restorations

This prospective, single-center, interventional post-market clinical follow-up (PMCF) study aims to evaluate the clinical performance and safety of temporary crown and bridge restorations fabricated using CE-marked ON DENT™ restorative materials throughout their functional intraoral clinical duration. A total of 120 adult patients requiring fixed prosthodontic treatments will be randomly assigned to four independent parallel groups (30 patients per group) based on the specific type of temporary material utilized: Tempo-CAD Monocolor PMMA, Tempo-CAD Monocolor SHT PMMA, Tempo-CAD Multicolor SHT PMMA, or Print On Cyclone Perma liquid resin. Patients will be monitored closely across 5 clinical visits up to a maximum duration of 6 months to assess prosthodontic survival, success rates, biological adaptations, and patient-reported quality of life outcomes.

Allogenic Bone Block for Oro-Antral Communication Closure for Subsequent Implant Placement

13 patients will be included in this study with a badly destructed upper molar indicated for extraction. Cone beam computerized tomography images revealed the presence of a large bone defect associated with oro-antral communication with the maxillary sinus. after extraction, The prefabricated allogenic scaffold will be seated. then 6 months later, implant will be inserted.

BMP Effect on Implant Stability and Marginal Bone Level After Immediate Placement

This randomized controlled clinical trial aims to evaluate the effect of recombinant human Bone Morphogenetic Protein-2 (rhBMP-2) on the stability and marginal bone level of dental implants following immediate placement. patients requiring extraction of unrestorable tooth in upper incisors or premolar region will be randomly assigned into two groups: the experimental group will receive immediate implant placement with rhBMP-2 application, while the control group will receive immediate implant placement without rhBMP-2. each group includes 16 immediate implants. Implant stability will be assessed using resonance frequency analysis (RFA) at baseline, and 16 weeks after implant placement. Marginal bone level changes will be evaluated radiographically using cone beam computed tomography (CBCT). The study aims to determine whether the use of rhBMP-2 enhances osseointegration and reduces marginal bone loss compared with conventional immediate implant placement.

Bone Level Tapered Multi-Center Study

The aim of this randomized, controlled, multi-center study is to assess the clinical and radiographic outcomes of using a Straumann® Bone Level Tapered implant for immediate implantation following extraction of a tooth in the pre-molar and anterior region of the maxilla and mandible (test) compared to the outcomes of placing this implant in healed sites (control).

Clinical Safety and Effectiveness of the Straumann Dynamic Navigation System Falcon

The Falcon Study is a prospective, multicenter, multinational clinical investigation evaluating the Straumann® Dynamic Navigation System (Falcon) for dental implant placement. The Falcon system is a real-time dynamic navigation device that helps clinicians visualize the position of dental instruments during surgery. The purpose of the study is to assess whether Falcon enables safe and precise implant placement in partially edentulous patients compared to benchmarks from the literature for freehand implant placement. The study will enroll approximately 75 adult patients across four European centers (Switzerland, Italy, the Netherlands, and Belgium). Each patient will undergo preoperative planning, implant surgery with the Falcon system, and a postoperative cone beam computed tomography (CBCT) scan to measure implant placement accuracy. The main outcomes are (1) angular deviation between planned and actual implant position, and (2) safety as measured by adverse device effects. Results will provide clinical evidence to support regulatory clearance and the safe adoption of the Falcon system in routine practice.

Mandibular Biological Drilling at Different Speeds for Dental Implant Placement

This randomized controlled clinical trial aims to evaluate the effect of different biological drilling speeds (50, 150, and 300 rpm) during implant osteotomy preparation in the mandible on marginal bone level changes and implant stability. Thirty-nine patients requiring a single dental implant in the mandible will be randomly allocated into three groups according to drilling speed. All implants will be placed using a biological drilling protocol without irrigation. Implant stability will be measured using resonance frequency analysis at implant placement and follow-up visits. Marginal bone levels will be evaluated radiographically using standardized periapical radiographs during the follow-up period up to 12 months. The study aims to determine whether different low-speed drilling protocols influence peri-implant bone remodeling and implant stability.

Effect of Mandibular Drilling Speed on Implant Stability and Osteogenic Potential: A Randomized Clinical Trial

This randomized clinical trial aims to evaluate the effect of different low-speed biological drilling protocols on implant stability and the osteogenic potential of autogenous bone particles collected during implant osteotomy. Patients requiring single dental implant placement in the mandible will be randomly assigned to different drilling speed protocols without irrigation. Implant stability will be measured clinically, while collected bone particles will be analyzed for osteogenic markers. The study aims to determine whether biological drilling improves implant stability and preserves the regenerative potential of autogenous bone.

Influence of Implant Insertion Depth on Peri-implant Bone Changes Around Short Implants

Dental implants are widely used to replace missing teeth and restore oral function and aesthetics. One of the key factors affecting the long-term success of dental implants is the stability of the bone surrounding the implant, particularly the crestal bone around the implant neck. Implant insertion depth relative to the alveolar crest may influence peri-implant tissue health and marginal bone remodeling. This randomized controlled clinical trial aims to evaluate the influence of implant placement depth on peri-implant health and radiographic bone changes around short dental implants placed using guided surgical protocol. All implants will be placed using the Bicon Implant System following computer-guided implant planning and surgical guide fabrication to ensure precise implant positioning. Participants requiring implant therapy will be randomly allocated into two groups. In the test group, implants will be placed 2 mm below the crestal bone level (subcrestal placement). In the control group, implants will be placed at the crestal bone level (crestal placement). Implant placement will be performed using guided implant surgery to standardize surgical positioning and minimize variability in implant angulation and depth. Clinical parameters related to peri-implant health, including Modified Plaque Index, Implant Mucosal Index, Peri-implant Mucosal Tissue Index and Probing Depth during follow-up visits at 3, 6 and 12 months. In addition, standardized radiographic examinations will be performed to measure peri-implant Crestal bone level changes at 12 months. The primary objective of this study is to determine whether subcrestal implant placement (2 mm below the bone crest) results in improved preservation of peri-implant crestal bone compared with crestal implant placement. Secondary outcomes will include assessment of peri-implant soft tissue health and overall implant stability. The findings of this study may help clarify the optimal implant insertion depth for short implants placed using guided surgery and may contribute to improving long-term implant success and peri-implant tissue stability.

Peri-implant Mucosal Changes Over Time Following Implant Provisional Removal in the Esthetic Zone

The study will examine the temporary volumetric change that happens in the gums around an implant crown when the crown is removed. The main question of the study is "how much time has to pass to see a significant change, especially when there could be a need to make a mold of the surrounding gum to make a new crown?" The area of the implant crown will be scanned with an intra-oral scanner over a period of 15 minutes.

Ti-Mesh Frame Comparison for Alveolar Bone Augmentation

This research compares a chairside Titanium Mesh frame fabrication used during bone grafting procedures with the use of a computer-aided design/computer-assisted manufacture (CAD-CAM) Titanium Mesh frame. In addition, a novel method of measuring soft tissue thickness will be tested using an Optical scanner at various times during the sequence of surgeries. The device used for shaping is a very thin, perforated titanium metal sheet with numerous small perforations (referred to as Micromesh). The construction of this device is usually accomplished chairside at the time of the surgery with custom cutting and shaping done using cues from the geometry of the surgical defect. An alternative approach will be tested where the mesh is pre-designed using digital information provided by a special xray and an optical scan device which takes a digital impression of the tooth and soft tissue surface. A digitally designed frame can then be printed using CAD-CAM software prior to surgery. This should reduce surgical time. A randomized control trial of 30 patients needing 3-D bone augmentation will be conducted comparing chairside fabrication of Ti-MESH or TEST- CAD-CAM designed and preprinted Ti-MESH to investigate these objectives: 1. Compare the operative times required for placement and removal of two different Ti-MESH frame fabrications 2. Compare post-op wound healing -Ti MESH exposure rates, bone production (volume, contour, and quality) and soft tissue thickness changes during the 1-year study period.

Autogenous Tooth Transplantation With Instrumentally Simulated Open Apex and Platelet-Rich Fibrin

Autogenous tooth transplantation (autotransplantation) represents a biologically valid alternative to implant therapy, particularly in young patients where implant placement is contraindicated due to ongoing skeletal growth. This approach preserves alveolar bone volume, maintains periodontal proprioception, and allows physiological adaptation over time.

Primary Stability and Peri-implant Outcomes of Short Implants in Post-extraction Single-tooth Sites

The placement of short implants in post-extraction sockets is a valuable option when residual bone height is limited, minimizing morbidity and treatment time. The management of the peri-implant gap and soft tissues may influence primary stability, hard/soft tissue remodeling, and implant success.