[The role of panoramic radiography in assessing the risk of injury to the inferior alveolar nerve before the extraction of mandibular wisdom teeth. The effect of the extent of root curvature and inferior alveolar canal-root tip overlap on the risk assessment].
The aim of the present study was to determine on panoramic radiographic images the effect of the distance between the root curvatures and inferior alveolar canal (IAC) root tip overlap on the surgeon's risk assessment predicting inferior alveolar nerve (IAN) paresthesia after lower third molar removal. In this case-control study 41 cases with postoperative IAN paresthesia and 359 controls without any postoperative complications were involved. Demographic data, root curvatures and the extent of IAC-root tip overlap were registered. The cases of major curvature--larger than 90 degrees (P=0.015; odds ratio [OR]=2.65), the "deepest" superimposition (P<0.001; OR=1.96), female gender (P=0.020) and increased age (P=0.008) were significantly associated with IAN paresthesia. Assessing root curvatures and the extent of IAC-root tip overlap for predicting IAN paresthesia after mandibular third molar removal should help to improve risk assessment.
Szalma
József
J
Pécsi Tudományegyetem Altalános Orvostudományi és Egészségtudományi Centrum Altalános Orvostudományi Kar Fogászati és Szájsebészeti Klinikája, Arc-, Allcsont- és Szájsebészeti Tanszék.
Lempel
Edina
E
Csuta
Tamás
T
Bártfai
Dóra
D
Jeges
Sára
S
Olasz
Lajos
L
D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery*; D008340:Mandibular Nerve / Q000601:surgery; D008875:Middle Aged; D008964:Molar, Third / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D011862:Radiography, Panoramic; D018570:Risk Assessment; D012307:Risk Factors; D019227:Tooth Apex / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014081:Tooth Extraction / Q000009:adverse effects*; D061221:Trigeminal Nerve Injuries