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

Objective: Comprehensive knowledge about the anatomy of the surgical site is an important prerequisite for any surgical procedure. This study aimed to assess the prevalence, position and anatomical characteristics of mandibular incisive canal (MIC), lingual foramen (LF) and anterior loop of the mandibular canal (ALMC) in an Iranian population using cone beam computed tomography (CBCT). Materials and Methods: This study was conducted on 103 patients who underwent CBCT prior to implant placement. The CBCT scans of patients were evaluated by two observers to determine the visibility and length of MIC, LF and ALMC. The buccolingual inclination of MIC at the initiation point of canal and canal path were also studied. Results: The prevalence of MIC, LF and ALMC was 90%, 76% and 84% on CBCT scans, respectively. The mean length of MIC and ALMC was 7.5mm and 1.2mm, respectively and the mean width of LF was 0.9mm. The MIC had a buccal inclination at the initiation point and approximated the lingual plate as extended towards the midline. Analytical statistics including independent samples t-test, paired samples t-test, ANOVA analyses were applied. Conclusion: Considering the high prevalence of MIC, ALMC and LF and wide range of MIC (1.2mm to 20mm) and ALMC (1mm to 9.9mm) length, CBCT is recommended for patients prior to surgical procedures in the anterior mandible to determine the exact location of these anatomical structures.

Download Full-text

Measurement of Anterior Loop Length for the Mandibular Canal and Diameter of the Mandibular Incisive Canal to Avoid Nerve Damage When Installing Endosseous Implants in the Interforaminal Region: A Second Attempt Introducing Cone Beam Computed Tomography

Journal of Oral and Maxillofacial Surgery ◽

10.1016/j.joms.2008.05.352 ◽

2009 ◽

Vol 67 (4) ◽

pp. 744-750 ◽

Cited By ~ 80

Author(s):

Yuki Uchida ◽

Nobuhiro Noguchi ◽

Masaaki Goto ◽

Yoshio Yamashita ◽

Tsunehiko Hanihara ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Mandibular Canal ◽

Nerve Damage ◽

Cone Beam ◽

Loop Length ◽

Incisive Canal ◽

Endosseous Implants ◽

Anterior Loop

Download Full-text

Assessment of the anterior loop of the mandibular canal: A study using cone-beam computed tomography

Imaging Science in Dentistry ◽

10.5624/isd.2016.46.2.69 ◽

2016 ◽

Vol 46 (2) ◽

pp. 69 ◽

Cited By ~ 10

Author(s):

Eduarda Helena Leandro do Nascimento ◽

Maria Luiza dos Anjos Pontual ◽

Andréa dos Anjos Pontual ◽

Danyel Elias da Cruz Perez ◽

José Natal Figueiroa ◽

...

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Mandibular Canal ◽

Cone Beam ◽

Anterior Loop

Download Full-text

The Role of Cone-Beam Computed Tomography in Diagnostics of Cystic Masses of the Jaw

Medical Visualization ◽

10.24835/1607-0763-2017-3-14-19 ◽

2017 ◽

pp. 14-19

Author(s):

M. A. Batova

Keyword(s):

Computed Tomography ◽

Cone Beam Computed Tomography ◽

Panoramic Radiography ◽

Cone Beam ◽

Incisive Canal ◽

Computed Tomographic ◽

Cystic Masses ◽

Cbct Analysis ◽

Tomography Analysis

Research objective. The study aimed to evaluate cone-beam computed tomography (CBCT) capabilities in diagnostics of cystic masses of the jaw.Methods. Over a period of 2015–2016 32 patients age 6 to 67 underwent both panoramic tomography and CBCT (using panoramic tomographic scanner STRATO 2000 and cone-beam computed tomographic scanner i-Cat respectively). 47% (n = 15) of the participants were women, 53% (n = 17) – men. Radiation exposure for a single procedure amounts to 0,05 mSv for panoramic tomography, 0,07 mSv for CBCT (FOV =13 cm), 0,06 mSv for CBCT (FOV =8 cm).Results. Comparative analysis of obtained results demonstrates that CBCT showed 54% (n = 27) more cystic masses of the jaws than panoramic radiography could. CBCT additionally showed the following pathologies: granulomas smaller than4 mm diameter – 85% (n = 23), 83% (n = 23) of said granulomas were found on maxilla, radicular cysts of maxilla – 11% (n = 3), incisive canal cyst – 4% (n = 1). Additionally panoramic tomography analysis misdiagnosed 5 granulomas (80% (n = 4) on mandibular premolar and molar areas) that were not found during CBCT analysis.Conclusion. The low effective dose and high informativity of CBCT enables the method to be used instead of intraoral radiography, panoramic tomography and MSCT as a screening procedure in diagnostics of dento-facial system pathologies, including cystic masses of the jaw.

Download Full-text