Skip to content

Horizontal alveolar ridge augmentation using a block-type collagenated xenograft: a randomized controlled trial comparing membrane-covered and membrane-free approaches

Horizontal alveolar ridge augmentation using a block-type collagenated xenograft: a randomized controlled trial comparing membrane-covered and membrane-free approaches

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0011916
Enrollment
30
Registered
2026-04-29
Start date
2026-08-03
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

None listed

Interventions

Medical Device, Procedure/Surgery : 1. Test Group (n=15): Intervention: 'Simplified GBR' procedure using block-type collagenated xenograft (LEGO Graft) alone. Details: Bone regeneration is induced by

Sponsors

Yonsei University Health System, Dental Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: ? Adults aged 19 years or older ? Patients expected to require guided bone regeneration (GBR) due to confirmed horizontal buccal bone defects at the planned implant placement site

Exclusion criteria

Exclusion criteria: ? Patients requiring GBR in extensive defect areas where three or more implants must be placed simultaneously. ? Patients with uncontrolled periodontal disease. ? Patients with systemic metabolic diseases, such as uncontrolled diabetes. ? Heavy smokers (more than 20 cigarettes per day) or those who smoke pipes or cigars. ? Patients with a history of head and neck radiation therapy or chemotherapy. ? Pregnant or breastfeeding patients. ? Patients with a history of taking bisphosphonates within the last four months. ? Patients with poor oral hygiene (Full-mouth plaque score = 25%).

Design outcomes

Primary

MeasureTime frame
Hard tissue dimensional changes, including horizontal bone width, augmented area, and volume, measured by superimposing CBCT(Cone Beam Computed Tomography) scans at baseline, immediate post-op, and 4 months post-op.

Secondary

MeasureTime frame
Early wound healing index (EHI) evaluated through clinical photographs at the time of suture removal.;Clinician-reported outcomes (CRO) including operability, stability, and overall satisfaction evaluated via questionnaires.;Patient-reported outcomes (PRO) for postoperative pain and discomfort assessed via questionnaires.

Countries

Korea, Republic of

Contacts

Public ContactJung-Seok Lee

Yonsei University

cooldds@gmail.com+82-2-2228-3187

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Aug 10, 2026