Stricker, Andres; Fretwurst, Tobias; Abdullayeva, Arzu; Bosshardt, Dieter; Aghaloo, Tara; Duttenhöfer, Fabian; Cordaro, Luca; Nelson, Katja; Gross, Christian (2024). Vitality of autologous retromolar bone grafts for alveolar ridge augmentation after a 3-months healing period: A prospective histomorphometrical analysis. Clinical oral implants research, 35(9), pp. 1151-1162. Wiley 10.1111/clr.14306
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Clinical_Oral_Implants_Res_-_2024_-_Stricker_-_Vitality_of_autologous_retromolar_bone_grafts_for_alveolar_ridge.pdf - Published Version Available under License Creative Commons: Attribution-Noncommercial-No Derivative Works (CC-BY-NC-ND). Download (5MB) | Preview |
OBJECTIVES
The incorporation of retromolar bone grafts used for alveolar ridge augmentation is not well understood. This prospective observational study aims to supply histomorphometrical data from bone graft biopsies taken at the time of retrieval and after a 3-month healing period using patient-matched biopsies.
MATERIALS AND METHODS
In 17 patients, trephine biopsies of the graft were acquired at the time of graft retrieval and after a 3-month healing period. The biopsies were compared histomorphometrically regarding the number of osteocytes, appearance of osteocyte lacunae, quantity, surface area, and activity of the Haversian canals.
RESULTS
All grafts appeared clinically stable after screw removal and 17 implants were placed. Histomorphometric analysis revealed no significant difference in the number of osteocytes (p = .413), osteocyte lacunae (p = .611), the ratio of filled/empty osteocyte lacunae (p = .467) and active Haversian canals (p = .495) between the biopsies retrieved after a 3-months healing period with those at the time of grafting. The only significant difference was noted in the mean surface area of the Haversian canals (p = .002). Specifically, the grafts post 3-month healing showed a significantly larger mean area (0.069 mm2) compared to the time of grafting (0.029 mm2).
CONCLUSION
This study demonstrates, compared to other data, a high rate of vital structures in retromolar bone block grafts after 3 months of healing, exhibiting the same histological features in comparison to the biopsies from the native alveolar ridge. Standard histomorphometrical parameters, e.g., the amount of filled or empty osteocyte lacunae for the description of the vitality of the graft need to be reappraised.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > School of Dental Medicine > Department of Oral Surgery and Stomatology 04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology |
UniBE Contributor: |
Bosshardt, Dieter |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1600-0501 |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
11 Jun 2024 14:58 |
Last Modified: |
01 Oct 2024 00:13 |
Publisher DOI: |
10.1111/clr.14306 |
PubMed ID: |
38847078 |
Uncontrolled Keywords: |
autologous bone graft haversian canal osteocyte lacunae osteocytes retromolar |
BORIS DOI: |
10.48350/197662 |
URI: |
https://boris.unibe.ch/id/eprint/197662 |
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