We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A retrospective radiographic evaluation of incisive canal and anterior loop of mental nerve using cone beam computed tomography.
- Authors
Sridhar, M.; Dhanraj M.; Thiyaneswaran N.; Jain, Ashish R.
- Abstract
Introduction: The pattern of entry of mental nerve into the mental foramen after its emergence from the inferior alveolar nerve bundle is an important presurgical landmark in the mandibular premolar region. The inferior alveolar nerve gives an anterior loop before entering soft tissues and ends as mental nerve in mental foramen. When traced anteriorly, mental nerve continues as incisive nerve inside mandibular incisive canal. The aim of this study is to identify the presence and location of mandibular incisive canal and anterior loop of mental nerve. Materials and Methods: A total of 146 cone beam computed tomographic (CBCT) images of 146 patients were evaluated for the presence of anterior loop of mental foramen and mandibular incisive canal. These CBCT images were analyzed using Galileos software for measuring the diameter of the incisive canal and anterior loop and also buccal proximity, lingual proximity, and distance between the incisive canal and inferior border of mandible. The readings were tabulated and statistical analysis was done with Chi-square test using SPSS software. The prevalence among gender and also in different age groups was also noted. Results: On examining 146 CBCTs, only 26 (17.80%) patients had anterior loop of mental foramen and only 8 (5.48%) patients had mandibular incisive canal. Anterior loop of mental foramen was present, unilaterally (left or right side) in 24 cases (16.43%) and bilaterally in remaining 2 (1.36%) cases. Mandibular incisive canal was found unilaterally (left or right) in 6 (4.10%) and bilaterally in 2 (1.37%) patients. These structures were more commonly found in patients around 31-40 years of age. Conclusion: Care should be taken to avoid injury to mental nerve during implant placement in the interforaminal region. Hence, a safe fixed distance, anterior from mental foramen should not be taken into account for every patient. Alterations in the distance are present among different individuals.
- Subjects
MANDIBULAR nerve; MENTAL foramen; ALVEOLAR nerve; CORONECTOMY; COMPUTED tomography
- Publication
Drug Invention Today, 2018, Vol 10, Issue 9, p1656
- ISSN
0975-7619
- Publication type
Article