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 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.

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Author:Puria ParviniGND, Frank SchwarzORCiDGND, Mira Kristin Hüfner, Nicole Rauch, Manuel Nienkemper, Kathrin Becker
Parent Title (English):Clinical implant dentistry and related research
Place of publication:Oxford [u.a.]
Document Type:Article
Date of Publication (online):2020/09/02
Date of first Publication:2020/09/02
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2020/12/05
Tag:alveolar ridge augmentation; animal experiment; micro CT; morphometry; tooth transplantation
Page Number:7
First Page:647
Last Page:653
Institutes:Medizin / Medizin
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Licence (German):License LogoCreative Commons - Namensnennung 4.0