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Evaluation of Submandibular Gland Fossa Concavity Using Cone-Beam Computed Tomography
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SH Razavi    , A Ansarilari * , M Poormohammadi |
| 1.Department of Oral and Maxillofacial Radiology, School of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, I.R.Iran. , ansari.1376@gmail.com |
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Abstract: (90 Views) |
Background and Objective: The submandibular gland fossa is one of the most critical anatomical regions in implant therapy of the posterior mandible. The present study was conducted to evaluate the location and anatomical characteristics of this fossa using cone-beam computed tomography (CBCT).
Methods: In this cross-sectional study, 140 CBCT images were selected from the archives of the Radiology Department of Yazd School of Dentistry, and the frequency of deep submandibular gland fossa was evaluated. In cases with a U-shaped ridge, the location, depth, angle of concavity, and distance from the deepest point of the fossa to the alveolar crest were calculated according to sex (male/female) and side (left/right).
Findings: The frequency of deep submandibular gland fossa (U-shaped ridge) was 56.4%. The mean concavity depth in men (2.86±0.70 mm) was significantly greater than in women (2.42±0.57 mm) (p<0.001). This value was also significantly greater on the right side (2.67±0.60 mm) compared to the left side (2.45±0.68 mm) (p<0.05). The distance from the deepest point of the submandibular gland fossa to the alveolar crest was also significantly greater in men (15.34±2.31 mm) compared to women (13.33±2.10 mm) (p<0.001). The overall mean concavity angle in the study population was 42.76±7.91 degrees. The location of the deepest point of the fossa in men (aligned with the distal half of the second mandibular molar) was significantly different from and more posterior than that in women (aligned with the junction between the first and second mandibular molars) (p<0.05).
Conclusion: The results of the study demonstrated that the frequency of the submandibular gland fossa in the studied population is high. Therefore, thorough evaluation of this region on CBCT imaging prior to implant treatment in the mandibular molar areas is essential. |
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| Keywords: The Submandibular Gland Fossa, Cone-Beam Computed Tomography (CBCT), Dental Implants, Anatomy. |
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Full-Text [PDF 726 kb]
(21 Downloads)
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Type of Study: Dicscriptive |
Subject:
Dentistry (Radiology)
Received: 2024/11/18 | Accepted: 2025/01/19 | Published: 2026/05/9
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