Validity of the vertical tube-shift method in determining the relationship between the mandibular third molar roots and the inferior alveolar nerve canal
Arora Anjana, Sodhi Amandeep, Patil Bharati A.,
소속 상세정보
( Arora Anjana ) - The Oxford Dental College Department of Oral Medicine and Radiology
( Sodhi Amandeep ) - The Oxford Dental College Department of Oral Medicine and Radiology
( Patil Bharati A. ) - The Oxford Dental College Department of Oral Medicine and Radiology
KMID : 0355620150410020066
Abstract
Objectives: To assess the validity of the vertical tube-shift method using intraoral periapical radiography (IOPAR) for determining the relationship between the mandibular third molar roots and the inferior alveolar nerve (IAN) canal in comparison with cone-beam computed tomography (CBCT).
Materials and Methods: Fifty impacted mandibular third molars were analyzed using the IOPAR vertical tube-shift method and CBCT. The re-lationship of the IAN canal to the impacted mandibular third molar was recorded as buccal, lingual or in line with the apex and was compared with CBCT findings.The sensitivity, specificit, positive predictive value (PPV), and negative predictive value (NPV) of the vertical tube-shift method in depicting the relationship (buccal/lingual/in line with the apex) of the IAN canal to the third molar root apex was calculated.
Results: The sensitivity and specificityPPV and NPV of the IOPAR vertical tube-shift technique was found to be highest for a lingual relationship (100%) followed by buccal (94.4%, 92.3%, 97.1%, and 85.7%) and in line with the apex relationship (88.9%, 95.0%, 80.0%, and 97.4%) of the IAN canal with the third molar root apex, respectively. A statistically significantassociation was observed between the IOPAR vertical tube-shift method and the CBCT with a P-value <0.01.
Conclusion: The vertical tube-shift method can be used as an effective diagnostic tool in assessing the relationship of the IAN canal to the third molar root apex with high sensitivity, specificit, PPV, and NPV.
키워드
Third molar; Inferior alveolar nerve; Vertical tube-shift method; Cone-beam computed tomography
원문 및 링크아웃 정보
등재저널 정보