Loading clinical trials...
Loading clinical trials...
Showing 1-2 of 2 trials
NCT06967649
The success of rehabilitation with osseointegrated implants is associated with numerous factors, including patient characteristics, installed implants, proper planning, and the prosthetic connections used. In the long term, success is closely related to the clinical radiographic follow-up of the implanted region and the identification of intrinsic or extrinsic factors that may interfere with implant survival. Therefore, the objective of this study is to evaluate, through clinical and radiographic analysis, the peri-implant tissues and prosthetic connections of research participants rehabilitated with osseointegrated implants at the Implant Dentistry Clinic of the Federal Fluminense University, over a period of 5 years. This will be a double-blind longitudinal study. A total of 148 research participants will be selected, respecting the inclusion criteria: completion of surgical-prosthetic planning by the Implant Dentistry Clinic team at UFF, including osseointegrated implants and prosthetic components manufactured by SIN Implant System (São Paulo, Brazil); agreeing to and signing the informed consent form, being willing to be monitored for a period of 5 years; systemically healthy patients who do not use antiresorptive and antiangiogenic drugs; patients with a plaque index \<20% (Ainamo \& Bay 1975) and bleeding on probing \<20% (Muhlemann \& Son 1971) at the start of the study. Participants will undergo clinical and radiographic analysis of peri-implant tissues and prosthetic connections at the following intervals: up to 7 days after implant installation (Time 0), at the time of prosthesis installation (Time 1), 6 months after prosthesis installation (Time 2), and 1 to 5 years after prosthesis installation (Times 3, 4, 5, 6, and 7, respectively). It is expected that this longitudinal study will lead to a better understanding of the factors influencing peri-implant bone loss and long-term success.
NCT04492111
Several recent systematic reviews have highlighted how the macrodesign of dental implants can influence stress distribution and biomechanical and biological behavior in implants immediately inserted in post-extraction sites. Finite element analyzes have confirmed the benefit of the inclination of the implant threads in reducing implant displacement in post-extraction sites, increasing primary stability, and decreasing stress in contact with the trabecular bone. Other comparative studies have shown that the design of the threads of the implant does not affect the distribution of stress in the surrounding bone. In view of the need to evaluate the influence of implant macrodesign in the case of implants inserted in post-extraction alveoli, this study will examine the clinical results of two different types of implants with different macrodesigns, with the aim of providing scientific evidence in this regard. The present study will investigate through a randomized controlled trial the effect of thread macrodesign of X-space implants on primary stability and osseointegration when inserted in post-extraction sites, as compared to cylindric 2P implants.