Soft Tissue Augmentation at Dental Implants
Conditions
Keywords
evaluation of soft tissue thickness around zygomatic implants
Brief summary
Would buccal pad of fat be comparable to platelet rich fibrin for Zygomatic implant coverage as a step for reconstruction of atrophic posterior maxilla, in terms of peri-implant soft tissue thickness and avoiding complicated postoperative sequalae?
Detailed description
This study aims to assess whether the buccal fat pad might prevent mucosal dehiscence and avoid potential postoperative complications when buccal fat pad is used to cover the body part of the zygomatic implants compared to the platelet rich fibrin during the reconstruction of atrophic maxilla. The expected benefit from the current study is to select the most suitable coverage for Zygomatic implant placement with the least postoperative complications also providing an appropriate soft tissue profile during the immediate loading phase preparing it for the final restoration.
Interventions
BIOLOGICALCoverage with PRF for Zygomatic implant placed
PRF preparation and placement: Shortly before being positioned at the surgical site, the PRF was freshly prepared. Ten milliliters of blood were extracted from the antecubital vein and put into a test tube devoid of anticoagulant for the PRF preparation. The blood sample was centrifuged right away for 10-12 minutes at 3000 rpm. The PRF membrane was obtained by squeezing the fibrin clot between pieces of gauze after centrifugation
Sponsors
Cairo University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
1. Patients with severely atrophic edentulous upper arch (Cawood class IV, V, VI) that could not be restored by other type of treatment 2. Patients who had at least 8-12 mm vertical bone height in anterior maxilla to allow installation of 2 conventional implants. 3. Lacking posterior maxillary bone support due to significant sinus pneumatization 4. Good systemic health (ASA score I-II) 5. Highly motivated patients
Exclusion criteria
1. Patient not willing to give his/her informed consent. 2. Patients with systemic disease that did not permit the surgical procedure (including general anesthesia). 3. Patients with uncontrolled diabetes or under bisphosphonate therapy. 4. Heavy smoker. (\> 20 cigarettes daily) 5. Patient with psychiatric problems, severe bruxism or other parafunctional habits. 6. Acute sinusitis. 7. Malignancy or pathology in Maxilla or Zygoma.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The peri-implant soft tissue thickness | Clinical evaluation will be performed at the operation day, 72 hours, 1st week, 15 days, 1month, 4-month intervals will be the first assessment for the soft tissue thickness then at 6 months and 12 months interval. | The peri-implant soft tissue thickness using the average of three measurement points on the buccal side of the implant platform registered with a periodontal probe (HH12 periodontal probe, Deppeler SA) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Postoperative complications | Clinical evaluation will be performed at the operation day, 72 hours, 1st week, 15 days, 1month, 4-month intervals will be the first assessment for the soft tissue thickness and postoperative complications then at 6 months and 12 months interval. | Recording of frequency and Incidence of Zygomatic fracture/oroantral communication/implant failure |
Countries
Egypt
Contacts
CONTACTCaroline John Caroline John George, masters
Outcome results
None listed