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Clinical Trials in Egypt / NCT07394179
Starting soon Not applicable

Transforming Channel Osteotomy Into Tunnel Osteotomy in Zygomatic Implant Preparation

NCT07394179 · tracked via the Priya Life Science Egypt tracker
Sponsor
Fayoum University
Phase
Not applicable
Started
2026-02-01
Last updated
2026-02-06

Condition(s) studied

Zygomatic Implants

Investigational drug(s) / intervention(s)

Group AGroup B

Group A: after zygomatic implant placed with channel shape osteotomy,Wetting, trimming and fixation of xenogenic lamina shell buccal to placed zygomatic implants in combination with xenogenic particulate form to fill all gaps between lamina from one side and native bone and implant from other side

Group B: after zygomatic implant placed with channel shape osteotomy ,Blunt dissection to buccal space to extract buccal pad of fat which will be mobilized and advanced to cover buccal surface of zygomatic implants and fixed over it with either suturing to palatal mucosa or with bone tacs

Study summary

The evolution of zygomatic implant techniques, from the original procedures to the Zygomatic Anatomy-Guided Approach (ZAGA), has significantly improved outcomes for patients with severe maxillary atrophy. Despite these advancements, challenges such as peri-implant tissue recession, sinus complications, and aesthetic concerns persist. Bone augmentation and soft tissue enhancement techniques, including sinus lifts, connective tissue grafts, and buccal fat pad utilization, have been employed to address these issues with varying degrees of success. However, the need for predictable and stable bone regeneration and soft tissue contouring remains critical for long-term implant success.

The following study aims to assess bone gain, soft tissue contour, and stability after using bone lamina shell, providing a potential solution to enhance peri-implant tissue integrity and optimize functional and aesthetic outcomes in zygomatic implant rehabilitation

Eligibility

Sex
ALL
Min age
21 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria: 1 -Patients older than 21 years. 2. Patients with severe alveolar bone atrophy in posterior maxilla (residual alveolar crest less than 5mm in height, in the area immediately distal to the canine pillar) 3. Patients with at least more than half of the zygomatic implant platform diameter inside the alveolar bone crest. Exclusion Criteria: 1 - Patients with systemic conditions contra-indicating general anesthesia. 2. Patients with conditions contraindicating implant placement (e.g.: radiation to the head and neck, intra-venous bisphosphonates, uncontrolled Diabetes mellitus). 3\. Patients with acute maxillary sinus infection or maxillary sinus cyst. 4. Restricted mouth opening (less than 3cm inter-arch distance anteriorly).

Primary outcome measure(s)

  • 1-soft tissue thickness 2-Soft tissue recession — 6 months of healing
    For soft tissue recession, a clinical visual exploration was performed, and defects were measured through a periodontal probe from fixed reference point (buccal surface of implant platform). For soft tissue thickness, a clinical method by using the average of three measurement points on the buccal side of the implant platform registered with a periodontal probe

Trial sites (1)

FacilityCityRegionStatus
Fayoum University Al Fayyum Egypt

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Other trials for the same condition

Buccal Fat Pad vs. Palatal Rotation Scarf Grafts for Soft Tissue Management Around Zygomatic Implants Recruiting
Evaluation of Zygomatic Implant Placement Accuracy Using Fully Metallic vs Resin-based Static Surgical Guides in Severely Atrophic Maxilla Recruiting
Assessment of Soft Tissue Thickness Over Zygomatic Implants in Atrophied Maxilla Covered With Buccal Fat Pad vs. Palatal Pedicle Flap Recruiting
Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07394179 on ClinicalTrials.gov ↗ ← All trials in Egypt