Morphometric Analysis of Greater Palatine Canal by Computed Tomography

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Aim: The greater palatine canal connects to the oral cavity through the greater palatine foramen. Preoperatively identifying the morphology of the greater palatine canal and greater palatine foramen is very important to avoid possible complications during surgery. This study aimed to evaluate the greater palatine canal and surrounding anatomical structures using computed tomography. Material and Methods: Images from 100 patients (35 female and 65 male) who had previously undergone computed tomography for various reasons were evaluated. The study data were divided into three age groups, <20 years, 20-60 years, and >60 years. Morphological parameters measured in this study included; diameter measurement from the widest part of the canal, length of the canal, beginning diameter of the canal, the ends diameter of the canal, localization of the canal entrance with respect to the third molar tooth, distance of the canal entrance to palatine suture. The values obtained from the measurements were compared in terms of age group, gender, and side. Results: The mean length of the canalis palatinus major was 15.19±4.38 mm. The diameter of the widest part of the canal and the end of the canal, and the distance between the canal entrance and the sutura palatina increased with age, but these increases were not statistically significant. Conclusion: Proper administration of anesthesia through the greater palatine foramen in maxillofacial surgeries and related applications requires a detailed understanding of the anatomy of the greater palatine canal, and the results of the present study will contribute to the understanding of this anatomy.

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