Assessment of Soft Tissue Thickness Following Utilization of Buccal Pad of Fat Versus Platelet-rich Fibrin for Covering Zygomatic Implants: A Randomized Clinical Trial
25 april 2026 bijgewerkt door: Caroline John George, Cairo University
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?
Studie Overzicht
Toestand
Werving
Interventie / Behandeling
Gedetailleerde beschrijving
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.
Studietype
Ingrijpend
Inschrijving (Geschat)
24
Fase
- Niet toepasbaar
Contacten en locaties
In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.
Studiecontact
- Naam: Caroline John Caroline John George, masters
- Telefoonnummer: +201282101184
- E-mail: caroline.john@dentistry.cu.edu.eg
Studie Locaties
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Cairo Governorate
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Cairo, Cairo Governorate, Egypte, 11562
- Werving
- Cairo university, Faculty of dentistry
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Contact:
- Telefoonnummer: 01223617956
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Deelname Criteria
Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Nee
Beschrijving
Inclusion Criteria:
- Patients with severely atrophic edentulous upper arch (Cawood class IV, V, VI) that could not be restored by other type of treatment
- Patients who had at least 8-12 mm vertical bone height in anterior maxilla to allow installation of 2 conventional implants.
- Lacking posterior maxillary bone support due to significant sinus pneumatization
- Good systemic health (ASA score I-II)
- Highly motivated patients
Exclusion Criteria:
- Patient not willing to give his/her informed consent.
- Patients with systemic disease that did not permit the surgical procedure (including general anesthesia).
- Patients with uncontrolled diabetes or under bisphosphonate therapy.
- Heavy smoker. (> 20 cigarettes daily)
- Patient with psychiatric problems, severe bruxism or other parafunctional habits.
- Acute sinusitis.
- Malignancy or pathology in Maxilla or Zygoma.
Studie plan
Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: Coverage 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
|
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
|
|
Actieve vergelijker: Coverage with buccal fat pad for Zygomatic implant placed
Broad muco-periosteal dissection of the anterior maxilla and its lateral sides can easily be used to make an incision of the periosteum in the area of the wisdom teeth during implant insertion. The buccal fat pad will be dissected into the oral cavity after being enlarged with scissors. The pad can be moved forward and lower to cover the implants by gently pulling it with an atraumatic clamp. Resorbable sutures are then used to secure it to the palatal mucosa, The flap will be repositioned over the BPF and sutured to the palatine mucosa. The posterior implant typically has the easiest time achieving implant coverage. To prevent premature traction, the dissection must be done very carefully. The pad must be gradually released from its capsule in order to complete the task. It is not problematic if there are pieces of the fat pad along the crestal suture. After surgery, this will turn into the epidermis in a few days. The buccal fat pad going to be repositioned over implant body |
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
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
The peri-implant soft tissue thickness
Tijdsspanne: 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.
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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)
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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.
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Postoperative complications
Tijdsspanne: 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.
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Recording of frequency and Incidence of Zygomatic fracture/oroantral communication/implant failure
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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.
|
Medewerkers en onderzoekers
Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.
Sponsor
Publicaties en nuttige links
De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.
Algemene publicaties
- Blanco-Ruiz S, Molinero-Mourelle P, Blanco-Ruiz M, Fernandez-Tresguerres FG, Blanco-Samper S, Lopez-Quiles J. Effect of the buccal fat pad in the prevention of zygomatic implant surgery postoperative complications: A pilot study. Med Oral Patol Oral Cir Bucal. 2023 Jul 1;28(4):e371-e377. doi: 10.4317/medoral.25792.
- Lima VCDS, Miguel MMV, Ferraz LFF, Filho ABM, Jardini MAN, Santamaria MP. Use of Platelet-Rich Fibrin Membranes With Single Implant Placement for Peri-Implant Mucosal Thickness Augmentation: A Case Series Study. Clin Adv Periodontics. 2022 Mar;12(1):17-20. doi: 10.1002/cap.10143. Epub 2021 Jan 12.
Studie record data
Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.
Bestudeer belangrijke data
Studie start (Werkelijk)
1 december 2025
Primaire voltooiing (Geschat)
1 februari 2027
Studie voltooiing (Geschat)
1 mei 2027
Studieregistratiedata
Eerst ingediend
25 april 2026
Eerst ingediend dat voldeed aan de QC-criteria
25 april 2026
Eerst geplaatst (Werkelijk)
1 mei 2026
Updates van studierecords
Laatste update geplaatst (Werkelijk)
1 mei 2026
Laatste update ingediend die voldeed aan QC-criteria
25 april 2026
Laatst geverifieerd
1 december 2025
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 29425
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Nee
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Nee
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