?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Decompression+of+inferior+alveolar+nerve%3A+case+report+comment&rft.creator=Ngeow%2C+Dr.+W.C.&rft.subject=JOURNALS&rft.subject=Online+Journal+of+Health+and+Allied+Sciences&rft.description=Paresthesia+as+a+result+of+mechanical+trauma+is+one+of+the+most+frequent+sensory+disturbances+of+the+inferior+alveolar+nerve.+This+case+report+describes+surgical+treatment+for+paresthesia+caused+by+a+compressive+phenomenon+within+the+mandibular+canal.+The+cause+of+the+compression%2C+a+broken+instrument+left+in+the+patient's+mouth+during+previous+endodontic+therapy%2C+was+identified+during+routine+radiography+and+computed+tomography.+Once+the+foreign+object+was+removed+by+surgery%2C+the+paresthesia+resolved+quickly.+This+case+highlights+the+potential+for+an+iatrogenic+mechanical+cause+of+paresthesia.+Comment+%3A+The+article+by+Marques+and+Gomes+(J+Can+Dent+Assoc+2011%3B77%3Ab34)+caught+my+attention.+For+your+information%2C+there+is+almost+an+almost+similar+case+reported+recently%2C+but+with+dysesthesia.1+It+is+fortunate+that+the+patient+in+the+current+case+has+less+severe+symptoms+(occasional+numbness+of+her+left+lip+and+a+small+part+of+her+chin%2C+and+a+tingling+sensation+in+the+vestibular+gingival).+What+I+can+deduce+from+the+radiographs+shown+is+that+the+file+was+actually+lodged+onto+the+wall+of+the+periapical+defect+and+the+mandibular+canal%2C+and+because+of+this+the+inferior+alveolar+nerve+(IAN)+was+spared+direct+injury.+Ikeda+et+al.2+had+shown+that+there+is+room+between+the+IAN+and+the+canal.+However%2C+as+reported+by+the+Marques+and+Gomes%2C+her+symptoms+were+more+aggravated+in+the+morning+and+during+stressful+situations.+This+may+be+a+result+of+fluid+accumulation+in+the+morning%2C+or+during+any+sympathetic+(stressful)+event%2C+that+may+result+in+vasodilatation%2C+and+hence+compression+within+the+narrow+mandibular+canal+that+usually+average+3.4+%2B+0.5+mm+in+diameter.+2%2C3+I+hope+this+opinion+is+of+help.+Thank+you.&rft.publisher=CANADIAN+DENTAL+ASSOC%2C+1815+ALTA+VISTA+DRIVE%2C+OTTAWA%2C+ON+K1G+3Y6%2C+CANADA&rft.date=2011-03-17&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F8171%2F1%2FDecompression%2520of%2520Inferior%2520Alveolar%2520Nerve%2520Case%2520Report%2520Comment.pdf&rft.identifier=++Ngeow%2C+Dr.+W.C.++(2011)+Decompression+of+inferior+alveolar+nerve%3A+case+report+comment.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F8171%2F