Radiographic Measurements of Inferior Alveolar Nerve Anterior Loop, Mandibular Interforamen and Interloop for Implant Placement among Saudi Population of Aseer Province
Journal Title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY - Year 2018, Vol 5, Issue 12
Abstract
Introduction: The anatomical variation of inferior alveolar nerve anterior loop (IANAL) is benign, but an accurate identification and measurement of anterior loop length is essential for surgical planning in this region. Purpose: The purpose of this study was to assess the occurrence and extent of IANAL and also to determine mandibular interforamen and interloop measurements for implant placement in Saudi population of Aseer province. Materials and Methods: The panoramic radiographs were retrospectively accessed for a period of 1 year before start of the study from the patient database system. The presence of IANAL was identified by carefully observing the course of mandibular canal and reverse looping upward and backward. The length of IANAL and interforamen and interloop distances was measured using digital ruler. Results: Among a total of 236 radiographs, IANAL was visualized in 54 (22.9%) subjects, of which 33 (61%) were males and 21 (39%) females. The length of IANAL was significantly greater in males than females (P = 0.000). There was no statistically significant difference found in interloop distance between males and females (P = 0.361). The interforamen distance was significantly greater in males than females (P = 0.000). Conclusions: The occurrence of IANAL was found to be 22.9%. The males had greater occurrence of IANAL than females. Interforamen distance was significantly greater in males than females. Author recommends a distance of around 5 mm from the most anterior point of mental foramen could be considered safe for placing implants among Saudi population of Aseer province.
Authors and Affiliations
Nabeeh A Al-Qahtani
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