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Lateral Ridge Augmentation With Two Different Compositions of Deproteinized Bovine Bone and Autogenous Bone: A Randomized, Controlled Study
Sponsor study identifier
interventional
20
1 country
1
Study Start
June 1, 2016
Actual (reported)Primary Completion
December 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 31, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Background: Placement of oral implants is frequently compromised due to atrophy of the alveolar process. Lateral ridge augmentation with an autogenous bone block is frequently necessary to increase the width of the alveolar process before implant installation. However, harvesting of an autogenous bone block is associated with donor site morbidity. Consequently, bone substitutes alone or in combination with particulate autogenous bone graft are used increasingly to simplify the surgical procedure. Animal and human studies evaluating lateral ridge augmentation with Bio-Oss alone or in combination with particulate autogenous bone graft have demonstrated new bone formation and high implant survival. However, the optimal ratio of Bio-Oss and particulate autogenous bone graft for lateral ridge augmentation and long-term implant survival is unknown. Purpose: Test the H0-hypothesis of no difference in long-term implant survival, newly formed bone, volumetric stability of the graft, gained width of the alveolar process and patient satisfaction after lateral ridge augmentation with Bio-Oss alone or in combination with a diminutive amount of autogenous bone graft. Material and methods: lateral ridge augmentation will be performed in 20 adults with two different ratios of Bio-Oss and autogenous bone graft after a split mouth design. Clinical and radiological measurements will evaluate the long-term implant survival. Cone beam computer tomography (CBCT) will be obtained preoperatively, immediately postoperatively, prior to implant placement, 2 years after implant installation and 5 years after implant installation to estimate the volumetric changes of the augmented area. Moreover, the amount of newly formed bone will be estimated by histologic evaluation after implant placement. Conclusion: Long-term implant survival has never been evaluated after lateral ridge augmentation with Bio-Oss alone or in combination with a diminutive amount of autogenous bone graft.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 31, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
June 1, 2016
Actual (reported)February 7, 2021
Actual (reported)February 15, 2021
Actual (reported)December 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
December 31, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Newly formed bone
Amount of newly formed bone in the graft assessed by histological measurements
10 months after treatment
Height in mm
Height of the augmented area assessed by radiological measurements
10 months after treatment
Volume in mm3
Volume of the augmented area assessed by clinical and radiological measurements
10 months after treatment
Implant survival
Survival of implants placed in the graft assessed by clinical and radiological measurements
1 year after placement of the implants
100 % bone substitute, 0% autogenous bone
90% bone substitute, 10% autogenous bone
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
NU Hospital Organization
Trollhättan, 46273, Sweden
Hanna Aludden, DDS, PhD
NU Hospital Organisation, Trollhättan, Sweden
20 participants (actual enrollment reported by the registry).
First Submitted
February 7, 2021
First Posted
February 15, 2021
Study Start
June 1, 2016
Actual (reported)Implant survival
Survival of implants placed in the graft assessed by clinical and radiological measurements
3 year after placement of the implants
Implant survival
Survival of implants placed in the graft assessed by clinical and radiological measurements
5 year after placement of the implants
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Primary Completion
December 1, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 31, 2024
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
April 6, 2022
Record last verified: 2022-04
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Source: ClinicalTrials.gov.
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