Edentulous arcade
Conditions
Interventions
Guided surgery group: 29 patients received 3 implants on one side of the maxilla, through guided surgery, after performing virtual planning and making a prototype guide. Conventional surgery group: 29
Sponsors
Universidade Paulista
Universidade Santa Úrsula
Eligibility
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Total edentulous maxillary patients; minimum bone thickness of 5.5 mm for implant placement; minimum bone height of 9 mm for placement of 6 implants.
Exclusion criteria
Exclusion criteria: Pregnancy; lactation; antibiotic therapy in the last 6 months, long-term use of medications that could alter osseointegration, such as anti-inflammatory drugs, bisphosphates or immunosuppressive drugs; graft needs before or during surgery; history of previous regenerative procedures in the area designated for implant installation;Patients with severe complications associated with type 2 diabetes, cardiovascular disease; peripheral vascular diseases such as ulcers, gangrene or amputation; neuropathies; nephropathies.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome 1: It is expected that angular deviation between the angles formed between the planned and executed in the guided surgery is low than that obtained in the conventional surgery. The angular deviation was measured by the comparisson between a cone beam computed tomography done before and one week after the surgical procedure. The postoperative CT scan was matched with the virtual planning using a three-dimensional voxel-based registration. ;Expected outcome 2: It is expected that Linear deviations in guided surgery are low than that from conventional surgery. The linear deviation was measured by the comparisson between a cone beam computed tomography done before and one week after the surgical procedure. The postoperative CT scan was matched with the virtual planning using a three-dimensional voxel-based registration. ;Found outcome 1: Implants installed with guided less angular deviation. | — |
Secondary
| Measure | Time frame |
|---|---|
| It is expected that peri-implant bone loss is lower in guided surgery when compared to conventional surgery. To evaluate peri-implant bone loss, periapical radiographs were taken immediately after prosthesis (baseline) installation and at 6 and 12 months after surgery, with the parallel technique using a radiograph positioner.;It is expected that the quantification of Aa, Pg, and Tf is low in guided surgery than in conventional surgery. Microbiogical evaluation was done by real-time polymerase chain reaction (PCR). ;It is expected that the levels of angiogenesis- and bone-related markers are lower in guided surgery than in conventional surgery. These markers were measured by imonoenzimatic assay at 7, 14, 30, and 90 days after implant insertion. ;It is expected low morbidity in guided surgery than in conventional surgery. Patient Perceptions Regarding Therapy were measured by pain scale questionnaire -VAS. | — |
Countries
Brazil
Contacts
Public ContactMônica Correa
Universidade Paulista
Outcome results
None listed