Integrated correlation analysis of the thickness of buccal bone and gingiva of maxillary incisors.

J Appl Oral Sci

Sun Yat-sen University , Guanghua School of Stomatology , Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou , China .

Published: June 2024

AI Article Synopsis

  • The study aimed to explore the relationship between buccal bone and gingival thickness in the front part of the upper jaw to help improve measurements for dental implants.
  • Using cone beam computed tomography (CBCT) and scans of 350 participants, researchers measured the thickness of both the bone and gum at various points, finding a strong correlation between the two.
  • Results showed the average thickness ranged from 0.64 to 1.88 mm for bone and 0.66 to 1.37 mm for gum, with the area 2 mm below the cementoenamel junction being critical for accurate assessments.

Article Abstract

Objective: This study aimed to validate the integrated correlation between the buccal bone and gingival thickness of the anterior maxilla, and to gain insight into the reference plane selection when measuring these two tissues before treatment with implants.

Methodology: Cone beam computed tomography (CBCT) and model scans of 350 human subjects were registered in the coDiagnostiX software to obtain sagittal maxillary incisor sections. The buccal bone thickness was measured at the coronal (2, 4, and 6 mm apical to the cementoenamel junction [CEJ]) and apical (0, 2, and 4 mm coronal to the apex plane) regions. The buccal gingival thickness was measured at the supra-CEJ (0, 1mm coronal to the CEJ) and sub-CEJ regions (1, 2, 4, and 6 mm apical to the CEJ). Canonical correlation analysis was performed for intergroup correlation analysis and investigation of key parameters.

Results: The mean thicknesses of the buccal bone and gingiva at different levels were 0.64~1.88 mm and 0.66~1.37 mm, respectively. There was a strong intergroup canonical correlation between the thickness of the buccal bone and that of the gingiva (r=0.837). The thickness of the buccal bone and gingiva at 2 mm apical to the CEJ are the most important indices with the highest canonical correlation coefficient and loadings. The most and least prevalent subgroups were the thin bone and thick gingiva group (accounting for 47.6%) and the thick bone and thick gingiva group (accounting for 8.6%).

Conclusion: Within the limitations of this retrospective study, the thickness of the buccal bone is significantly correlated with that of the buccal gingiva, and the 2 mm region apical to the CEJ is a vital plane for quantifying the thickness of these two tissues.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11178351PMC
http://dx.doi.org/10.1590/1678-7757-2024-0018DOI Listing

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