Canalis sinuosus: anatomical variation or structure?

Area of Science:

• Anatomy
• Radiology
• Oral Surgery

Background:

• The canalis sinuosus (CS) is a small anatomical channel in the maxilla.
• Its classification as a structure or variation requires further investigation.
• Understanding its prevalence and location is crucial for dental procedures.

Purpose of the Study:

• To determine the presence, location, trajectory, and size of the CS using CBCT.
• To characterize the CS as an anatomical structure or variation.

Main Methods:

• Cone beam computed tomography (CBCT) scans of 200 maxillary samples were analyzed.
• A dental radiology specialist evaluated the images for CS presence and characteristics.
• Patient demographics (age, gender) were recorded.

Main Results:

• The CS was present in 66.5% of individuals, often bilaterally.
• Males showed a higher frequency of CS.
• The CS most commonly ended near the central incisor region and typically measured up to 1 mm in diameter.

Conclusions:

• The high prevalence of CS supports its classification as an anatomical structure.
• CBCT imaging is recommended before invasive maxillary procedures to protect the CS.
• Dentists must be aware of the CS's potential presence and location.