Evaluation of morphological variations of the nasopalatine canal; a retrospective study based on cone beam computed tomography

Öz

Aim: The morphology of the nasopalatine canal is important in treatment planning for the adjacent alveolar processes and teeth, as well as in various surgical procedures. The purpose of this study was to evaluate the morphology of the nasopalatine canal in a specific population using cone beam computed tomography. Method: Cone beam computed tomography images of 301 randomly selected patients were retrospectively examined. Nasopalatine canal morphological types were categorized on sagittal (cylindrical, cone, funnel, hourglass, tree branch, banana) and coronal (single, double, Y-type) sections. Additionally, the relationship between nasopalatine canal morphology and patients' age, gender, and anterior central teeth status was assessed. Results: Among the 301 individuals (170 females, 131 males), the most common nasopalatine canal shape in sagittal sections was cylindrical (42.5%), and the least common was tree branch type (6.3%). In coronal sections, the single canal type was the most prevalent (67.1%), while the least common was the two parallel canal type (5%). The presence of a single canal was over twice as frequent as the Y-type canal, and the Y-type canal occurred more than five times as often as two parallel canals. No significant correlation was found between nasopalatine canal morphology and the status of anterior dentition, gender, or age groups. Conclusion: Clinicians should be well-informed about the nasopalatine canal's morphology and examine it in detail with preoperative cone beam computed tomography to prevent complications and increase treatment success in local anesthesia and maxillary surgery procedures.

Anahtar Kelimeler

• Cone beam computed tomography
• nasopalatine canal
• nasopalatine canal morphology
• premaxilla

Nazopalatin kanalın morfolojik varyasyonlarının değerlendirilmesi; konik ışınlı bilgisayarlı tomografi tabanlı retrospektif çalışma

Öz

Amaç: Nazopalatin kanal morfolojisi komşuluğundaki alveolar proses ve dişlere yönelik tedavi planlamalarında ve çeşitli cerrahi prosedürlerde önemlidir. Bu çalışmanın amacı, nazopalatin kanalın morfolojisini belirli bir popülasyonda konik ışınlı bilgisayarlı tomografi kullanarak değerlendirmektir. Yöntem: Rastgele seçilen 301 hastanın konik ışınlı bilgisayarlı tomografi görüntüleri retrospektif olarak incelenmiştir. Sagittal (silindirik, koni, huni, kum saati, ağaç dalı, muz) ve koronal (tek, çift, Y tipi) kesitler üzerinde nazopalatin kanal morfolojik tipleri incelenmiştir. Ayrıca, nazopalatin kanal morfolojisinin hastaların yaşı, cinsiyeti ve anterior santral dişlerinin durumu ile ilişkisi değerlendirilmiştir. Bulgular: Bu çalışmada 170’i kadın, 131’i erkek olmak üzere toplam 301 kişinin konik ışınlı bilgisayarlı tomografi görüntüsünde nazopalatin kanal incelenmiştir. İncelenen görüntülerde sagittal kesitlerde en sık görülen nazopalatin kanal şekli %42.5 ile silindirik tip iken, en az görülen %6.3 ile ağaç dalı tipiydi. Koronal kesitlerde ise, %67.1 ile en sık görülen tek kanal iken, en az görülen ise %5 ile çift kanaldı. Koronal kesitte incelenen nazopalatin kanal şeklinde, her iki cinsiyette de tek kanal görülmesi, Y tipi kanalın iki katından fazlayken, Y tipi kanal görülmesi çift kanalın beş katından fazlaydı. Anterior dişlilik durumu, cinsiyet, yaş grupları ve nazopalatin kanal morfolojisi arasında anlamlı bir ilişki bulunmadı. Sonuç: Nazopalatin kanalın morfolojik özellikleri ve varyasyonları lokal anestezi ve maksiller cerrahi prosedürlerinde komplikasyonları önlemek ve tedavi başarısını arttırmak için klinisyenler tarafından çok iyi bilinmelidir ve operasyon öncesi konik ışınlı bilgisayarlı tomografi ile detaylı olarak incelenmelidir.

Anahtar Kelimeler

• Konik Işınlı Bilgisayarlı Tomografi
• nazopalatin kanal
• nazopalatin kanal morfolojisi
• Premaksilla

Kaynakça

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