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05.03.2020 | Anatomic Bases of Medical, Radiological and Surgical Techniques

Bucco alveolar bone thickness of mandibular impacted third molars with different inclinations: a CBCT study

verfasst von: Livia Sonia Zambrano-De la Peña, Aron Aliaga-Del Castillo, Yalil Augusto Rodríguez-Cárdenas, Gustavo Armando Ruiz-Mora, Luis Ernesto Arriola-Guillén, Maria Eugenia Guerrero

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 9/2020

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Abstract

Purpose

To compare the buccal alveolar bone thickness of mesioangulated mandibular impacted third molars (MITM) with buccal versus lingual inclination using cone-beam computed tomography (CBCT).

Methods

This retrospective cross-sectional study evaluated 69 individuals (39 women and 30 men) who presented a total of 101 mesioangulated MITM according to the Winter classification and in B position according to the Pell and Gregory classification. The average age was 22.99 ± 3.94 years. The superior, medial and inferior alveolar thickness regarding buccal (n = 44) or lingual (n = 57) mandibular third molar inclination were measured. T test or Mann–Whitney U test and finally, a multiple linear regression were applied (p < 0.05).

Results

The buccal alveolar bone thickness of mesioangulated mandibular impacted third molars was significantly greater in the group with lingual inclination compared to the group with buccal inclination, in the superior region (6.21 ± 3.27 vs. 4.85 ± 3.06; p = 0.036). The lingual inclination significantly influenced the buccal alveolar bone thickness in the middle region (p = 0.011).

Conclusions

The mesioangulated MITM in B position with lingual inclination have a greater thickness of the superior and medial buccal alveolar bone than the MITM with buccal inclination. These results should be considered during MITM diagnosis and surgical planning.

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Titel: Bucco alveolar bone thickness of mandibular impacted third molars with different inclinations: a CBCT study
verfasst von: Livia Sonia Zambrano-De la Peña
Aron Aliaga-Del Castillo
Yalil Augusto Rodríguez-Cárdenas
Gustavo Armando Ruiz-Mora
Luis Ernesto Arriola-Guillén
Maria Eugenia Guerrero
Publikationsdatum: 05.03.2020
Verlag: Springer Paris
Erschienen in: Surgical and Radiologic Anatomy / Ausgabe 9/2020
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-020-02447-1

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Bucco alveolar bone thickness of mandibular impacted third molars with different inclinations: a CBCT study