Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal

Cone-beam-computed-tomography (CBCT) has been useful in providing insights of relevant anatomy prior to surgical procedures, including the assessment of the proximity of impacted mandibular-third-molar to the inferior-alveolar-canal (IAC). It is important to understand the reliability of conventiona...

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Main Authors: Azizah Ahmad Fauzi, Parker, Mohamed Ebrahim, Norval, Ej, Phrabhakaran Nambiar
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:http://journalarticle.ukm.my/10593/
http://journalarticle.ukm.my/10593/1/08%20Azizah%20Ahmad%20Fauzi.pdf
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author Azizah Ahmad Fauzi,
Parker, Mohamed Ebrahim
Norval, Ej
Phrabhakaran Nambiar,
author_facet Azizah Ahmad Fauzi,
Parker, Mohamed Ebrahim
Norval, Ej
Phrabhakaran Nambiar,
author_sort Azizah Ahmad Fauzi,
building UKM Institutional Repository
collection Online Access
description Cone-beam-computed-tomography (CBCT) has been useful in providing insights of relevant anatomy prior to surgical procedures, including the assessment of the proximity of impacted mandibular-third-molar to the inferior-alveolar-canal (IAC). It is important to understand the reliability of conventional panoramic-radiograph in the assessment of this criterion since it is more commonly used as first line radiographic approach due to its availability and lower radiation dose. This study aimed to investigate the reliability of conventional panoramic-radiograph in the evaluation of the proximity of impacted mandibular-third-molar root tip to the IAC by correlating the results with CBCT. A total of 65 root tips of impacted mandibular-third-molars that had both panoramic radiographs and CBCT images were included in this retrospective study. Two trained observers participated in all image evaluations. A prepared standard 1 cm ruler was used to measure the proximity of the third-molar root apices to the IACs. Measurements recorded in this study were categorized into positive (root apex above a roof of IAC), zero (root apex was superimposed on IAC) and negative (root apex below a roof of IAC). Data analysis was carried out using student t-test. In this study, both observers recorded statistically significant differences in the measurement between third-molars root apices and the IAC from panoramic radiographs and CBCT images. The low reliability of panoramic radiograph to assess the vertical proximity between these two anatomical structures suggests the importance of additional assessment with CBCT in cases where panoramic radiograph shows superimposition of the third molar root on the roof of the canal and presence of root below the roof of the IAC.
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spelling oai:generic.eprints.org:105932017-08-22T00:29:30Z http://journalarticle.ukm.my/10593/ Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal Azizah Ahmad Fauzi, Parker, Mohamed Ebrahim Norval, Ej Phrabhakaran Nambiar, Cone-beam-computed-tomography (CBCT) has been useful in providing insights of relevant anatomy prior to surgical procedures, including the assessment of the proximity of impacted mandibular-third-molar to the inferior-alveolar-canal (IAC). It is important to understand the reliability of conventional panoramic-radiograph in the assessment of this criterion since it is more commonly used as first line radiographic approach due to its availability and lower radiation dose. This study aimed to investigate the reliability of conventional panoramic-radiograph in the evaluation of the proximity of impacted mandibular-third-molar root tip to the IAC by correlating the results with CBCT. A total of 65 root tips of impacted mandibular-third-molars that had both panoramic radiographs and CBCT images were included in this retrospective study. Two trained observers participated in all image evaluations. A prepared standard 1 cm ruler was used to measure the proximity of the third-molar root apices to the IACs. Measurements recorded in this study were categorized into positive (root apex above a roof of IAC), zero (root apex was superimposed on IAC) and negative (root apex below a roof of IAC). Data analysis was carried out using student t-test. In this study, both observers recorded statistically significant differences in the measurement between third-molars root apices and the IAC from panoramic radiographs and CBCT images. The low reliability of panoramic radiograph to assess the vertical proximity between these two anatomical structures suggests the importance of additional assessment with CBCT in cases where panoramic radiograph shows superimposition of the third molar root on the roof of the canal and presence of root below the roof of the IAC. Penerbit Universiti Kebangsaan Malaysia 2017-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/10593/1/08%20Azizah%20Ahmad%20Fauzi.pdf Azizah Ahmad Fauzi, and Parker, Mohamed Ebrahim and Norval, Ej and Phrabhakaran Nambiar, (2017) Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal. Sains Malaysiana, 46 (1). pp. 59-65. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol46num1_2017/contentsVol46num1_2017.html
spellingShingle Azizah Ahmad Fauzi,
Parker, Mohamed Ebrahim
Norval, Ej
Phrabhakaran Nambiar,
Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
title Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
title_full Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
title_fullStr Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
title_full_unstemmed Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
title_short Reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
title_sort reliability of panoramic-radiograph to determine the position of third-molar from inferior-alveolar-canal
url http://journalarticle.ukm.my/10593/
http://journalarticle.ukm.my/10593/
http://journalarticle.ukm.my/10593/1/08%20Azizah%20Ahmad%20Fauzi.pdf