Three-dimensional radiographic assessment of the mandibular interforaminal donor site in different vertical facial growth types

B Husseini; G Khoury; F Riachi; N Ghosn; N Khoury; F Jerbaka; J Bouserhal; R Younes

doi:10.1016/j.jormas.2021.02.003

Three-dimensional radiographic assessment of the mandibular interforaminal donor site in different vertical facial growth types

J Stomatol Oral Maxillofac Surg. 2022 Feb;123(1):9-15. doi: 10.1016/j.jormas.2021.02.003. Epub 2021 Feb 17.

Authors

B Husseini¹, G Khoury², F Riachi³, N Ghosn⁴, N Khoury⁵, F Jerbaka⁶, J Bouserhal⁷, R Younes⁸

Affiliations

¹ Department of Oral Surgery, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon; Cranio-Facial Research Laboratory, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon.. Electronic address: bachar.husseini@net.usj.edu.lb.
² Department of Advanced Surgical Implantology, Service of Odontology, U.F.R. of Odontology, Rothschild Hospital, AP-HP, University Denis Diderot, Paris, France. Electronic address: Khouryg75@gmail.com.
³ Department of Oral Surgery, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon.
⁴ Cranio-Facial Research Laboratory, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon.. Electronic address: nabil.ghosn@usj.edu.lb.
⁵ Department of Oral Surgery, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon. Electronic address: Nicolas.khoury2@net.usj.edu.lb.
⁶ Private Practice, Beirut, Lebanon. Electronic address: Jerbaka1@hotmail.com.
⁷ Cranio-Facial Research Laboratory, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon.; Department of Orthodontics, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon; Department of orthodontics, Henry M. Goldman School of Dental Medicine, Boston, USA.
⁸ Department of Oral Surgery, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon; Cranio-Facial Research Laboratory, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon.. Electronic address: ronald.younes@usj.edu.lb.

PMID: 33609788
DOI: 10.1016/j.jormas.2021.02.003

Abstract

Purpose: To assess volumetrically, the impact of vertical facial growth types (VFGT) on the mandibular interforaminal region as a potential bone donor site.

Material and methods: 60 cone beam computed tomography (CBCT) scans of adult individuals were classified in three groups according to their SN-GoGn angle: hypodivergent group (hG) (N=20), normodivergent group (NG) (N=19) and hyperdivergent group (HG) (N=21). Total harvestable bone volume (TBV), cortico-cancellous bone volume (CBV-cBV), and cortical bone surface (CBS) were evaluated. ANOVA test followed by Tukey post hoc tests were used to compare the mean continuous outcomes according to their VFGT.

Results: The whole sample showed a mean TBV of 1376.32±541.01mm³, CBV of 468.52±121.54mm³ and cBV of 908.73±474.71mm³. The mean CBS amounted to 782.58±146.80mm². The comparison between the groups stated a significantly different mean TBV and cBV (-p-value<0.001). The mean CBS was significantly different (-p-value=0.015): the smallest for the NG, but not significantly different (-p-value<0.001): the highest for the HG, intermediate for the NG and the smallest for the hG.

Conclusion: Hypodivergent individuals have the thickest cancellous bone suitable for an onlay bone graft, while hyperdivergent individuals have the thinnest bone ideal for a 3D grafting approach.

Keywords: Bone donor site; Cancellous bone; Cone beam computed tomography; Cortical bone; Growth patterns; Symphysis.

MeSH terms

Adult
Cone-Beam Computed Tomography*
Face / diagnostic imaging
Humans
Mandible* / diagnostic imaging