Abstract
Prevalence of the inferior alveolar nerve's anterior loop and mandibular incisive canal by use of Cone Beam Computed Tomography (CBCT) in an Iranian population
Highlights
Background and AimMental nerve injury is one of the challenges of implant surgeries in the anterior mandibular region, which leads to complications such as paresthesia of the lip and chin
High resolution Cone Beam Computed Tomography (CBCT) images were obtained by NewTom Giano unit (QR SRL Company, Verona, Italy) with a 11×5 cm field of view (FOV) and exposure parameters of kVp=90, mA=10, t=9s
Panoramic-like reconstructed images were prepared from the axial slice in 1mm sections and upon the detection of the anterior loop, cross-sectional slices with 1mm thickness and 1mm intervals were prepared
Summary
In this cross-sectional descriptive analysis, according to the performed calculations with 95% confidence interval and considering the deviation (error rate) from the actual prevalence in the society, the sample size was calculated to be 200 patients (400 hemi- mandibles). Measurements were performed in NNT viewer software. By counting the slices between the most anterior border of the mental foramen (Figure 1). By considering the thickness of each slice, the exact dimensions of the anterior loop were calculated for each sample. Two observers simultaneously evaluated the images in NNT viewer software, and they were in agreement regarding the presence or absence of anterior loop and its dimensions. The maximum diameter (height) of circular or ovoid mandibular incisive canals was measured, and the location of this diameter was determined on cross-sectional slices relative to dental roots.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
