Efficacy of autogenous tooth roots for a combined vertical and horizontal alveolar ridge augmentation and staged implant placement. A prospective controlled clinical study

  • Objectives: To assess and compare the efficacy and safety of autogenous tooth roots (TRs) and autogenous bone blocks (ABs) for combined vertical and horizontal alveolar ridge augmentation and two-stage implant placement. Materials and Methods: A total of 28 patients in need of implant therapy and vertical ridge augmentation were allocated to parallel groups receiving either healthy autogenous tooth roots (e.g., retained wisdom teeth) (n = 14, n = 15 defects) or cortical autogenous bone blocks harvested from the retromolar area (n = 14, n = 17 defects). After 26 weeks of submerged healing, the clinical reduction in ridge height (RH) deficiency was defined as the primary outcome. Results: Both surgical procedures were associated with a similar mean reduction in RH deficiency values, amounting to 4.48 ± 2.42 mm (median: 4.25; 95% CI: 3.08–5.88) in the TR group and 4.46 ± 3.31 mm (median: 3.00; 95% CI: 2.54–6.38) in the AB group (p = .60, Mann–Whitney U-test). In all patients investigated, the reduction in RH deficiency values allowed for an adequate implant placement at the respective sites. The frequency of complications (e.g., soft tissue dehiscences) was low (TR: n = 4; AB: n = 0). Conclusions: Up to staged-implant placement, both TR and AB grafts appeared to be associated with comparable efficacy and safety for combined vertical and horizontal alveolar ridge augmentation.
Author:Frank SchwarzORCiDGND, Karina Anne-Marie ObrejaORCiDGND, Stephanie Mayer, Ausra RamanauskaiteORCiDGND, Robert Alexander SaderORCiDGND, Puria ParviniGND
Parent Title (English):Journal of clinical periodontology
Place of publication:Oxford [u.a.]
Document Type:Article
Date of Publication (online):2022/03/08
Date of first Publication:2022/03/08
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/09/25
Tag:alveolar ridge augmentation; clinical study; tooth transplantation
Page Number:10
First Page:496
Last Page:505
The study was funded by a grant from the Deutsche Forschungsgemeinschaft (DFG), Bonn, Germany.
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Licence (German):License LogoCreative Commons - CC BY-NC - Namensnennung - Nicht kommerziell 4.0 International