Radiographic outcomes of ridge reconstruction with autogenous bone block versus collagenated xenogeneic bone block: A randomized clinical trial.

Autor: Romito GA; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil., Soares HH; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil., do Amaral GCLS; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil., Fonseca MA; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil., Sapata VM; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil., Conde MC; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil., Hammerle CHF; Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland., Schwarz F; Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany., Villar CC; Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Clinical oral implants research [Clin Oral Implants Res] 2023 Aug; Vol. 34 (8), pp. 863-871. Date of Electronic Publication: 2023 Jun 13.
DOI: 10.1111/clr.14114
Abstrakt: Aim: To compare, at different levels from the alveolar crest, the radiographic outcomes of equine-derived collagenated xenogeneic bone blocks (CXBB) and autogenous bone blocks (ABB) used for lateral alveolar ridge augmentation.
Materials and Methods: Sixty-four patients with tooth gaps in atrophic alveolar ridges with ≤4 mm were randomly assigned to lateral augmentation using CXBB or ABB. The lateral bone thickness (LBT) was measured 2, 4, 6, 8, and 10 mm below the alveolar crest using CBCT scans obtained before augmentation surgery and at 30 weeks, prior to implant placement. Statistical analysis was performed using Shapiro-Wilk, Fisher's exact, Mann-Whitney, and Wilcoxon signed-rank tests.
Results: Both CXBB and ABB resulted in significant total and buccal LBT gains at 2, 4, 6, 8, and 10 mm. LBT gains were similar between CXBB- and ABB-augmented sites, except for greater buccal LBT gains at 8 mm at CXBB-augmented sites. While ABB-augmented sites gained vertical bone height, CXBB-treated sites suffered vertical bone loss (CXBB: -0.16 mm; ABB: 0.38 mm, p < .0009).
Conclusions: CXBB and ABB were both associated with significant and similar LBT gains at 30 weeks.
(© 2023 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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