NCT06049823

Brief Summary

The aim of the present study was to compare the half-packed grafts that are covered with either a collagen or a nonresorbable membrane to the conventional alveolar ridge preservation procedures involving full-packed grafts and collagen membrane. The primary purpose was to evaluate the bone dimensional changes between the groups, and the secondary objective was to assess the potential contributing factors to clinical, radiographic and implant-related outcomes under different alveolar ridge preservation procedures.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 10, 2021

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 7, 2023

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 12, 2023

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 11, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

September 22, 2023

Completed
Last Updated

September 22, 2023

Status Verified

September 1, 2023

Enrollment Period

1.8 years

First QC Date

September 11, 2023

Last Update Submit

September 16, 2023

Conditions

Keywords

alveolar ridge preservationsealing materialresorbable membranenon-resorbable membranedental implants

Outcome Measures

Primary Outcomes (1)

  • bone dimensional changes between the groups

    Based on CBCT images, horizontal measurements by using AVIZO software (version 7.0, FEI). The measurements were repeated twice at a 2-week interval, and mean values were used for the final analysis (width or height in millimeters, mm): * Buccal bone plate thickness (BT) at 1 mm, 3mm, 5mm apical to the crest * Horizontal ridge width (HRW) at 1 at 1 mm, 3mm, 5mm apical to the crest * The change of HRW at 1, 3, 5 mm apical to crest (T2-T1). Vertical measurements in cross-sectional images: * Buccal bone height (BH)(mm) * Palatal/lingual bone height (PH)(mm) * The discrepancy between buccal and palatal/lingual height.(mm) * Midcrestal height (Mid-H)(mm) * The change of BH, PH, and Mid-H between immediate post-operative and 6 months later. (T2-T1)(mm).

    6-month healing period after alveolar ridge preservation

Secondary Outcomes (1)

  • Clinical and implant related outcomes

    6-month healing period after alveolar ridge preservation

Study Arms (3)

Test1

EXPERIMENTAL

half- (bottom 50% of socket filled with gelatin sponge and the top 50% of the socket filled with deproteinized bovine bone mineral mixed with collagen (DBBM-C)) then covered with a collagen membrane in tooth sockets

Procedure: Alveolar ridge preservation

Test2

EXPERIMENTAL

half- (bottom 50% of socket filled with gelatin sponge and the top 50% of the socket filled with deproteinized bovine bone mineral mixed with collagen (DBBM-C)) then covered with a nonresorbable membrane in tooth sockets

Procedure: Alveolar ridge preservation

Control

EXPERIMENTAL

full-grafting (DBBM-C+ Collagen membrane) in tooth sockets

Procedure: Alveolar ridge preservation

Interventions

Different grafting strategy of alveolar ridge preservation with different sealing materials

ControlTest1Test2

Eligibility Criteria

Age24 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥ 20 years old
  • presence of one or more hopeless teeth requiring extraction and subsequent implant placement due to reasons such as crack tooth, vertical root fracture, endodontic failure, unrestorable caries and severe periodontitis
  • the extraction socket should have more than two walls for ARP, which includes type I-II sockets (Palatal/ lingual defects were also included)
  • participants should have a stable periodontal condition or history of periodontitis that is well-controlled with good oral hygiene. The pocket depth of the adjacent tooth around the socket should be less than 3 mm as assessed with a periodontal probe (Hu-Friedy, Chicago, IL, USA).

You may not qualify if:

  • heavy smokers consuming more than half pack of cigarettes daily
  • women who were pregnant, lactating, or planning to be pregnant
  • history of psychiatric disorders
  • uncontrolled and complicated medical conditions that might hinder wound healing or bone metabolism, including poorly controlled diabetes, autoimmune disorders, receiving current radiotherapy in the head and neck regions, taking bisphosphonate and other antiresorptive agents.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taipei Chang Gung Memorial hospital

Taipei, 105, Taiwan

Location

Related Publications (2)

  • Hsieh CH, Kuo PY, Chiu MY, Lin CY. The Effectiveness of Different Grafting Strategies in Alveolar Ridge Preservation: A Retrospective Study of Two- and Three- Dimensional Radiographic Analysis. Int J Oral Maxillofac Implants. 2026 Jan 12;0(0):1-38. doi: 10.11607/jomi.11369. Online ahead of print.

  • Lin CY, Chiu MY, Kuo PY, Wang HL. Half- and full-grafting alveolar ridge preservation with different sealing materials: A three-arm randomized clinical trial. Clin Implant Dent Relat Res. 2024 Jun;26(3):651-662. doi: 10.1111/cid.13327. Epub 2024 Apr 18.

MeSH Terms

Conditions

Bone Resorption

Condition Hierarchy (Ancestors)

Bone DiseasesMusculoskeletal Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
The operator (L.C.Y.) was blinded to the assignment and opened the envelope just before the alveolar ridge preservation procedures, while both the participants and the examiners (C.M.Y., P.Y.K.) remained completely blinded to the assignments in the study protocol.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
assistent professor

Study Record Dates

First Submitted

September 11, 2023

First Posted

September 22, 2023

Study Start

May 10, 2021

Primary Completion

March 7, 2023

Study Completion

July 12, 2023

Last Updated

September 22, 2023

Record last verified: 2023-09

Locations