bone augmentation simultaneous to implant removal
ProcedurePlacement of bone substitutes in the socket simultaneous to implant removal, and reimplantation is performed after 6 months of healing.
Recruiting
NCT Number: NCT07078890
Effect of Bone Augmentation Simultaneous to Implant Removal on the Prognosis of Reimplantation at the Same Site
The aim of this study was to investigate the effect of bone augmentation simultaneous to implant removal on the prognosis of reimplantation at the same sites, providing recommendations for management strategies after failed implant removal.
Recruiting
Interested in participating?
Request InfoKey information
Conditions
Age range
18 year–90 year
Sex eligibility
All sexes
Study type
Interventional
Phase
Not applicable
Primary location
Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
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About this study
The study aims to compare the radiographic and clinical indicators between bone augmentation simultaneous to implant removal and natural healing after implant removal, thus evaluate the effect on the prognosis of reimplantation. At the same time, patients with implant failure were also retrospectively collected to investigate the factors influencing the prognosis of bone healing and reimplantation after implant failure.
Who can participate
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
- 1. Age greater than 18 years 2. Implant failure requiring removal 3. Plan to reimplant in the same site 4. Periodontal health, or stabilized periodontitis after treatment
Exclusion criteria
- 1. Uncontrolled metabolic diseases 2. Taking medications that have an effect on bone metabolism 3. The implant has detached at the time of consultation 4. Do not consent to reimplant in the same site 5. Unwillingness to participate in the follow-up of this study 6. Other conditions that do not qualify for implant therapy
Treatment and study plan
Primary outcomes
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Ridge Height (RH)
Time frame: Before implant removal and 6 months after implant removal
Two reference lines were established for the radiological analysis: the longitudinal axis of the implant and a line perpendicular to this axis and tangential to a reference point (sinus floor in the maxilla and mandibular base in the mandible).Ridge height (RH) in mm, defined as the distance between the tangential reference line and the most coronal point of the bone crest, assessed buccal (B-RH) and lingual (L-RH).
Secondary outcomes
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Ridge Width (RW)
Time frame: Before implant removal and 6 months after implant removal
Two reference lines were established for the radiological analysis: the longitudinal axis of the implant and a line perpendicular to this axis and tangential to a reference point (sinus floor in the maxilla and mandibular base in the mandible).Ridge width (RW) in mm, recorded at 1, 3, and 5 mm from the bone crest. In the event of discrepancy between the buccal and lingual bone crests, the most apical one was chosen as reference.
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Bone Plate Thickness (BPT)
Time frame: Before implant removal and 6 months after implant removal
Two reference lines were established for the radiological analysis: the longitudinal axis of the implant and a line perpendicular to this axis and tangential to a reference point (sinus floor in the maxilla and mandibular base in the mandible).Bone plate thickness (BPT) in mm, assessed at 1, 3, 5, and 7 mm below the crest and measured buccal and lingual.
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Bone Mineral Density(BMD)
Time frame: 6 months after implant removal
Bone density in the socket 6 months after implant removal
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Inserting Torque(IT)
Time frame: Replantation surgery
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Implant Survival Rate(SVR)
Time frame: 6 months and 12 months after restoration
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Probing Depth
Time frame: 6 months and 12 months after restoration
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Bleeding On Probing（BOP）
Time frame: 6 months and 12 months after restoration
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Marginal Bone Loss(MBL)
Time frame: 6 months and 12 months after restoration
MBL was defined as the linear distance (in mm) measured at both the proximal and distal mesial planes from the most coronal point of the surrounding bone to the cervical plane of the implant.
Study contacts
Contact information is provided by the study sponsor or research team.
Sponsors and collaborators
Lead sponsor
The Dental Hospital of Zhejiang University School of Medicine
Other
Collaborators
- Hospital of Stomatology, Wuhan University
- Shanghai Stomotological Hospital
Registry information
Important dates
- Study start
- 2025
- Primary completion
- 2027
- Study completion
- 2027
- First posted
- Jul 22, 2025
- Registry last updated
- Jul 22, 2025
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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