Clinical Trial: Effects of Splinted or Non-splinted Single-unit Crowns on Marginal Bone-level Alterations Around Implants

Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Interventional

Official Title: School and Hospital of Somatology, Peking University

Brief Summary:

The microthreaded and platform switched implants could control the stress in the suitable range. The splint would disturb the function. So it is necessary to know whether the splinted single-unit crowns is fit for the adjacent multi-implants.

Outcome variables: Splinted single-unit crowns on one side implants and non-splinted single-unit crowns on the other side Materials and method: 80-100 consecutive implants in at least 20 patients would be included for implant- supported restorations in the posterior maxilla or mandibular. All patients would be in general good health. For every patient, the same posterior teeth had lost on both sides for more than 6 months. All patients were treated by the same qualified surgeon.

Prosthetics procedure would be performed by an experienced prosthodontist. The two sides were allocated to the test or the control group according to the predefined computer-generated randomization table. Clinical evaluations and radiographic analysis were performed by an oral and maxillofacial radiologist who was not aware of the type of Prosthetics technique that was used.


Detailed Summary:
Sponsor: Peking University

Current Primary Outcome:

  • Marginal Bone Levels (MBL) [ Time Frame: three years ]
    marginal bone level around the implants using CT scan
  • Probing Pocket Depth (PPD) [ Time Frame: three years ]
    Probing Pocket Depth (PPD) for the implants
  • Plaque (implant level) [ Time Frame: three years ]
    Plaque (implant level) of the crowns
  • Bleeding on Probing (Implant level) [ Time Frame: three years ]
    Bleeding on Probing of the crowns


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Peking University

Dates:
Date Received: August 18, 2016
Date Started: September 2016
Date Completion: September 2022
Last Updated: August 22, 2016
Last Verified: August 2016