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Allogenic Bone Block for Oro-Antral Communication Closure for Subsequent Implant Placement

Novel Application of CAD-CAM Designed Allogenic Bone Block in Oro-Antral Communication Closure for Subsequent Implant Placement: Radiographic and Histological Analysis

Status
Enrolling by invitation
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07604142
Acronym
CAD-CAM
Enrollment
13
Registered
2026-05-22
Start date
2025-09-20
Completion date
2026-11-30
Last updated
2026-05-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Tooth Loss

Keywords

CAD-CAM allogenic block, oroantral communication, radiographic analysis, histological analysis

Brief summary

13 patients will be included in this study with a badly destructed upper molar indicated for extraction. Cone beam computerized tomography images revealed the presence of a large bone defect associated with oro-antral communication with the maxillary sinus. after extraction, The prefabricated allogenic scaffold will be seated. then 6 months later, implant will be inserted.

Detailed description

13 patients will be included in this study with a badly destructed upper molar indicated for extraction. Cone beam computerized tomography images revealed the presence of a large bone defect associated with oro-antral communication with the maxillary sinus. : Extraction will be performed atraumatically using a piezotome surgical motor with an extraction kit. After removal of tooth, oro-antral communication will be verified .The prefabricated CAD-CAM allogenic bone will be seated and covered with nonporous d-PTFE membrane which was secured with simple interrupted sutures. After 6 months, a new CBCT scan will be performed. A mucoperiosteal flap will be reflected ,and a bone biopsy will be taken using a trephine bur. Under strictly aseptic circumstances, the selected implant will be inserted

Interventions

DEVICEExtraction will be performed atraumatically using a piezotome surgical motor with an extraction kit

Extraction will be performed atraumatically using a piezotome surgical motor with an extraction kit. After removal of tooth, oro-antral communication will be verified .The prefabricated CAD-CAM Allogenic bone will be seated and covered with nonporous d-PTFE membrane

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* ≥ 20 badly destructed upper molar indicated for extraction CBCT revealed the presence of a large bone defect associated with oro-antral communication with the maxillary sinus

Exclusion criteria

* any systemic disesse affect healing heavy smoker sinus disease

Design outcomes

Primary

MeasureTime frameDescription
the integration of graft6 monthsCBCT
histological analysis of graft6 monthshistomorphometric analysis

Countries

Egypt

Contacts

PRINCIPAL_INVESTIGATORmohamed helal, lecturer

Tanta University

PRINCIPAL_INVESTIGATORrehab ghouraba, professor

Tanta University

PRINCIPAL_INVESTIGATORaya alsherif, lecturer

Tanta University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 23, 2026