Microstructural volumetric analysis of vertical alveolar ridge augmentation using autogenous tooth roots

Background To volumetrically assess the bone microstructure following vertical alveolar ridge augmentation using differently conditioned autogenous tooth roots (TR) and second‐stage implant placement. Materials and methods The upper premolars were bilaterally extracted in n = 4 beagle dogs and rando...

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Bibliographic Details
Published in:Clinical implant dentistry and related research 2020-10, Vol.22 (5), p.647-653
Main Authors: Parvini, Puria, Schwarz, Frank, Hüfner, Mira Kristin, Rauch, Nicole, Nienkemper, Manuel, Becker, Kathrin
Format: Article
Language:English
Subjects:
Alveolar bone
Alveolar Ridge Augmentation
animal experiment
Augmentation
Autoclaving
Bone grafts
Bone Transplantation
Computed tomography
Dental Implantation, Endosseous
Dental roots
Dentistry
Grafting
micro CT
Microstructure
morphometry
Premolars
Quadrants
Roots
Surgical implants
Teeth
Titanium
Tooth Root - diagnostic imaging
Tooth Root - surgery
tooth transplantation
Transplants & implants
Vestibular system
Volumetric analysis
X-Ray Microtomography
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Summary:Background To volumetrically assess the bone microstructure following vertical alveolar ridge augmentation using differently conditioned autogenous tooth roots (TR) and second‐stage implant placement. Materials and methods The upper premolars were bilaterally extracted in n = 4 beagle dogs and randomly assigned to either autoclavation (TR‐A) or no additional treatment (TR‐C). Subsequently, TR were used as block grafts for vertical alveolar ridge augmentation in both lower quadrants. At 12 weeks, titanium implants were inserted and left to heal 3 weeks. Microcomputed tomography was used to quantify bone volume per tissue volume (BV/TV), trabecular thickness (Tb.Th), and trabecular spacing (Tb.Sp) at vestibular (v) and oral (o) aspects along the implant and in the augmented upper half of the implant, respectively. Results Median BV/TV [TR‐C: 51.33% (v) and 70.42% (o) vs TR‐A: 44.05% (v) and 64.46% (o)], Tb.th [TR‐C: 0.22 mm (v) and 0.27 mm (o) vs TR‐A: 0.23 mm (v) and 0.29 mm (o)] and Tb.Sp [TR‐C: 0.26 mm (v) and 0.13 mm (o) vs TR‐A: 0.29 μm (v) and 0.15 mm (o)] values were comparable in both groups. Conclusion Both TR‐C and TR‐A grafts were associated with a comparable bone microstructure within the grafted area.
ISSN:1523-0899
1708-8208
DOI:10.1111/cid.12947