Bone Augmentation, Implant Failure, Prognosis
Conditions
Brief summary
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.
Detailed description
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.
Interventions
PROCEDUREbone augmentation simultaneous to implant removal
Placement of bone substitutes in the socket simultaneous to implant removal, and reimplantation is performed after 6 months of healing.
Sponsors
Hospital of Stomatology, Wuhan University
Shanghai Stomotological Hospital
The Dental Hospital of Zhejiang University School of Medicine
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ridge Height (RH) | 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
| Measure | Time frame | Description |
|---|---|---|
| Bone Plate Thickness (BPT) | 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. |
| Bone Mineral Density(BMD) | 6 months after implant removal | Bone density in the socket 6 months after implant removal |
| Inserting Torque(IT) | Replantation surgery | — |
| Ridge Width (RW) | 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. |
| Probing Depth | 6 months and 12 months after restoration | — |
| Bleeding On Probing（BOP） | 6 months and 12 months after restoration | — |
| Marginal Bone Loss(MBL) | 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. |
| Implant Survival Rate(SVR) | 6 months and 12 months after restoration | — |
Countries
China
Contacts
Primary ContactMisi Si
Outcome results
None listed