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Objectives <p>This study assessed the association of the accessory maxillary sinus ostium (AMO) with mucosal thickening (MT) and other anatomical variations of the maxillary sinuses in two age groups using cone-beam computed tomography (CBCT).</p> Materials and methods <p>This cross-sectional study was conducted on 265 eligible CBCT scans (530 maxillary sinuses) of patients in two groups under (<i>n</i> = 117) and over (<i>n</i> = 148) 20 years of age. The axial, coronal, and sagittal planes were evaluated for presence of the AMO, MT &gt; 2&#xa0;mm, nasal septal deviation (NSD) &gt; 3&#xa0;mm, concha bullosa (CB), Haller cells (HCs), and primary maxillary ostium (PMO) obstruction by a senior dental student and an oral radiologist. Data were analyzed by using Chi-square test in SPSS software version 24 (alpha = 0.05).</p> Results <p>The frequency of AMO and MT was 37.3% and 45.3%, respectively. AMO had no significant association with MT, CB, HCs, PMO obstruction, or NSD (<i>P</i> &gt; 0.05). The frequency of PMO obstruction was significantly higher in patients with MT (<i>P</i> &lt; 0.001). The frequency of MT and AMO was significantly higher in those over 20 years of age (<i>P</i> &lt; 0.001).</p> Conclusion <p>Individuals over 20 years of age had a significantly higher frequency of AMO and MT. Also, PMO obstruction was significantly more prevalent in patients with MT. AMO and MT had no significant association with NSD, CB, or HCs. AMO and PMO obstruction had no significant association either.</p>

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Association of the Accessory Maxillary Sinus Ostium with Mucosal Thickening and Anatomical Variations of the Maxillary Sinuses in Different Age Groups: A Cone-Beam Computed Tomography Study

  • 期刊论文

  • 发表日期：

    2026年5月11日

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  • Mehdi Pooyandeh Khorram,
  • Faezeh Kashi,
  • Naghmeh Nasrollahi,
  • Arian Azadnia

摘要

Objectives

This study assessed the association of the accessory maxillary sinus ostium (AMO) with mucosal thickening (MT) and other anatomical variations of the maxillary sinuses in two age groups using cone-beam computed tomography (CBCT).

Materials and methods

This cross-sectional study was conducted on 265 eligible CBCT scans (530 maxillary sinuses) of patients in two groups under (n = 117) and over (n = 148) 20 years of age. The axial, coronal, and sagittal planes were evaluated for presence of the AMO, MT > 2 mm, nasal septal deviation (NSD) > 3 mm, concha bullosa (CB), Haller cells (HCs), and primary maxillary ostium (PMO) obstruction by a senior dental student and an oral radiologist. Data were analyzed by using Chi-square test in SPSS software version 24 (alpha = 0.05).

Results

The frequency of AMO and MT was 37.3% and 45.3%, respectively. AMO had no significant association with MT, CB, HCs, PMO obstruction, or NSD (P > 0.05). The frequency of PMO obstruction was significantly higher in patients with MT (P < 0.001). The frequency of MT and AMO was significantly higher in those over 20 years of age (P < 0.001).

Conclusion

Individuals over 20 years of age had a significantly higher frequency of AMO and MT. Also, PMO obstruction was significantly more prevalent in patients with MT. AMO and MT had no significant association with NSD, CB, or HCs. AMO and PMO obstruction had no significant association either.