The effect of additional fixation of the resorbable collagen in guided bone regeneration in the peri-implant dehiscence defect : a randomized clinical trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

CRIS

Registry ID

KCT0011238

Enrollment

Registered

2025-12-02

Start date

2022-11-10

Completion date

Unknown

Last updated

2025-12-08

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

Conditions

None listed

Interventions

Procedure/Surgery, Others(pin) : Divided into test group and control group depending on whether the absorbable shield is fixed with pins after bone grafting with granular bone grafting material.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: - Adult patients over 20 years of age - Patients who are expected to develop a labial or buccal dehiscence defect around the implant with a periapical-coronal width of 3 mm or more in the maxilla or mandible on computed tomography images taken before surgery. - Areas where more than 2 months have passed since tooth extraction

Exclusion criteria

Exclusion criteria: - Patients with uncontrolled metabolic systemic disease (i.e. uncontrolled diabetes). - Patients with a past history of craniofacial radiation therapy or chemotherapy - Patients with a history of taking drugs that inhibit bone metabolism (e.g. bisphosphonates or denosumab) within the last 4 months - Heavy smokers (more than 20 cigarettes per day) - Patients who are pregnant or lactating - Those who have a history of having a tumor removed from the same area in the past

Design outcomes

Primary

Measure	Time frame
Horizontal thickness of buccal hard tissue around implants 4 months after surgery on CBCT	—

Secondary

Measure	Time frame
Horizontal thickness of buccal hard tissue around the implant 3 months after surgery on computed tomography imaging;Change in the volume of soft tissue around the implant through overlapping intraoral scan images taken at different times;Horizontal thickness of soft tissue around the implant before surgery and 4 months after surgery through superimposition of intraoral scan image and computed tomography image ;Survey on patient satisfaction and operator difficulty after primary and secondary implant surgery: Quantification of evaluation results using analog scale (VAS)	—

Measure

Time frame

Horizontal thickness of buccal hard tissue around the implant 3 months after surgery on computed tomography imaging;Change in the volume of soft tissue around the implant through overlapping intraoral scan images taken at different times;Horizontal thickness of soft tissue around the implant before surgery and 4 months after surgery through superimposition of intraoral scan image and computed tomography image ;Survey on patient satisfaction and operator difficulty after primary and secondary implant surgery: Quantification of evaluation results using analog scale (VAS)

—

Countries

Korea, Republic of

Contacts

Public ContactJung seok Lee

Yonsei University

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

Outcome results