Common conditions associated with displacement of the inferior alveolar nerve canal: A radiographic diagnostic aid

Abstract

Purpose This study reviewed the common conditions associated with displacement of inferior alveolar nerve canal. Materials and Methods General search engines and specialized databases including Google Scholar, Pub Med, Pub Med Central, Science Direct, and Scopus were used to find relevant studies by using keywords such as “mandibular canal”, “alveolar canal”, “inferior alveolar nerve canal”, “inferior dental canal”, “inferior mandibular canal” and “displacement”. Results About 120 articles were found, of which approximately 70 were broadly relevant to the topic. We ultimately included 37 articles that were closely related to the topic of interest. When the data were compiled, the following 8 lesions were found to have a relationship with displacement of mandibular canal: radicular/residual cysts, dentigerous cyst, odontogenic keratocyst, aneurysmal bone cyst, ameloblastoma, central giant cell granuloma, fibrous dysplasis, and cementossifying fibroma. Conclusion When clinicians encounter a lesion associated with displaced mandibular canal, they should first consider these entities in the differential diagnosis. This review would help dentists make more accurate diagnoses and develop better treatment plans according to patients' radiographs.

Oral Hard Tissue Lesions: A Radiographic Diagnostic Decision Tree

“…Root resorption, tooth displacement, bone expansion, and perforation have been also reported in some cases [17], [38] (Figure 6). ABC is a rare pseudocyst filled with blood [4]. There is no sex predilection and most of the patients are in the first to second decades of life [39].…”

“…This entity is more common in mandible than maxilla and frequently has been reported in the body of the mandible, followed by mandibular ramus, angle, coronoid process, and condyle [4], [39]. It is clinically represented as a tender, painful, and rapidly growing lesion that causes bone swelling [4]. Their radiographic features may vary from unilocular radiolucency to a "ballooned-out" multilocular radiolucency with a honeycomb or soap-bubble pattern.…”

“…Their radiographic features may vary from unilocular radiolucency to a "ballooned-out" multilocular radiolucency with a honeycomb or soap-bubble pattern. Aneurysmal bone cysts can cause expansion, destruction, periosteal reaction, root resorption and perforation of bone, and soft-tissue herniation [4], [39].…”

Marsupialization Followed by Enucleation and Chemical Cauterization for Treatment of Odontogenic Keratocyst Involving Maxillary Sinus: A Case Report

“…In mandible, the highest frequency occurs in the body of the mandible (20%) followed by the angle of the mandible (18%) and vertical ramus (10%), but in the maxilla, it is seen most commonly in the canine area, followed by third molar tuberosity and anterior maxilla. 2,3 Maxillary sinus pathology can occur when the Schneiderian membrane is breached by conditions such as the odontogenic pathology of the maxillary bone. Odontogenic infections and pathology account for 11%-12% cases of maxillary sinusitis.…”

“…They have a predilection for males and are more frequent in the posterior region of the mandible. 2 Most of the cases are incidentally discovered on routine radiographs for dental problems. Mostly they appear as well-demarcated unilocular radiolucency having a thin, sclerotic well-defined margin.…”