A comparative study of cone-beam computed tomography and conventional panoramic radiography in assessing the topographic relationship between the mandibular canal and impacted third molars

Tantanapornkul, Weeraya; Okouchi, Kiyoshi; Fujiwara, Yoshikuni; Yamashiro, Masashi; Maruoka, Yutaka; Ohbayashi, Naoto; Kurabayashi, Tohru

doi:10.1016/j.tripleo.2006.06.060

Cited by 265 publications

(244 citation statements)

References 23 publications

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“…30 Knowledge of both the anatomy and the anatomical variations of the mandibular canal are essential to the success of mandible-related dental procedures. It is important that these variations be identified to prevent treatment complications.…”

Section: A B C D Ementioning

confidence: 99%

Classification of bifid mandibular canals using cone beam computed tomography

et al. 2013

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The objective of this study was to classify the morphology of bifid mandibular canals and to evaluate their relationship with the roots of third molars, using cone beam computed tomography (CBCT) scans. The CBCT scans of 75 patients were analyzed and the bifurcations were classified according to Langlais et al. (1985). The relationship of bifurcation and third molars was established according to the following classification: class A -uninvolved, class B -close relationship, class C -intimate relationship and class D -absence of third molars. Data were submitted to descriptive statistics, and the results indicated that the patients' mean age was 48.2 (± 13.2) years. Unilateral bifurcation (Type 1) was the most frequent type (72.6%), followed by unilateral Type 2 (19.3%). Class D was the most frequent (57.33%), followed by class C (21.33%), class B (13.33%) and class A (8%). It could be concluded that most cases presented unilateral bifid mandibular canals extending to the third molar or adjacent regions, and when present, the roots seemed to be a continuation of the bifid mandibular canal.

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Section: A B C D Ementioning

confidence: 99%

Classification of bifid mandibular canals using cone beam computed tomography

et al. 2013

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“…It is recommended in this study to use CBCT as secondary diagnostic modality when panoramic radiograph Gomes et al 2008 Panoramic radiograph does not has a high diagnostic accuracy when it is used in the assessment of risk in surgical extractions of lower third molars Tantanapornkul et al 2007Ghaeminia et al 2011 The diagnostic accuracy of CBCT was superior to panoramic radiography in predicting neurovascular bundle exposure following assessment of the relationship of the third molar root tip to the IAC Hasegawa et al 2013 Panoramic findings mostly inconsistent (62.5%) to CBCT findings. Thus, in planning surgical removal of mandibular third molar, panoramic radiography alone does not provide sufficiently reliable images to assess the risk associated with nerve exposure Peker et al 2014 Less accuracy in panoramic radiograph may indicate further preoperative assessment of impacted mandibular third molar with CBCT especially when darkening of the roots and interruption of the white line are observed on panoramic images shows superimposition of the third molar root on the roof of IAC and the presence of root below the roof of the canal.…”

Section: Resultsmentioning

confidence: 97%

“…Unlike panoramic radiography which uses an average dental arch as focal trough, the ability of the CBCT technology to customize the focal trough shape to suit an individual dental arch allows for improved visualization of the anatomical structures of the region of interest. It is generally agreed that CBCT proved to be a reliable technique for visualizing anatomical structures in the maxillofacial region including the IAC, and for assessing its relationship to the adjacent roots of teeth (Angelopoulus et al 2008;Sawamura et al 2003;Tantanapornkul et al 2007). However, the higher radiation dose and cost of CBCT in comparison to panoramic radiography limits the use of this modality to cases where conventional radiographic findings justify further assessment with CBCT (SEDENTEXCT project 2011).…”

Section: Introductionmentioning

confidence: 99%

Reliability of Panoramic-Radiograph to Determine the Position of Third-Molar from Inferior-Alveolar-Canal

Fauzi

Parker

Norval

et al. 2017

JSM

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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 Keywords: Panoramic radiography; third molar ABSTRAK Sinaran-kon-tomografi-berkomputer (CBCT) amat berguna dalam memberikan kefahaman berkenaan anatomi berkaitan sebelum prosedur pembedahan, termasuklah penilaian terhadap kedudukan mandibular-molar-ketiga-terimpak ke kanal inferior alveolus (IAC). Adalah penting untuk memahami kebolehpercayaan radiograf-panorama konvensional dalam penilaian kriteria ini memandangkan ia sering digunakan sebagai pendekatan radiografi baris hadapan kerana lebih mudah diperoleh dan mempunyai dos radiasi yang rendah. Kajian ini bertujuan untuk mengenal pasti kebolehpercayaan radiograf-panorama konvensional dalam penilaian kedudukan mandibular-molar-ketiga-terimpak

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“…7 Panoramic signs of superimposition of the roots on the canal along with interruption of radiopaque border of canal were most frequent while panoramic signs of superimposition in conjunction with narrowing and deviation of the inferior alveolar canal were least frequent respectively found in another study. 10 On the other hand, had shown that darkening of roots (42.9%) was the most common finding followed by narrowing of inferior alveolar canal (28.9%). 11 In different studies reported that the root of lower third molar was in contact with the inferior alveolar canal 85 and 94% respectively.…”

Section: Discussionmentioning

confidence: 96%

Pre-operative assessment of impacted mandibular third molar and inferior alveolar canal using orthopantomograhpy and cone beam computed tomography

Akter

Rahman

Uddin

et al. 2016

Bangabandhu Sheikh Mujib Medical University Journal

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<p class="Abstract">The aim of this study was to assess the proximity and relation of impacted mandibular third molar and inferior alveolar canal on orthopantomogram and cone beam computed tomography (CBCT). Sixty impacted mandibular third molars having close proximity with the inferior alveolar canal were included. CBCT images were done to determine the exact location and relationship of impacted third molar tooth and inferior alveolar canal. We assessed the radiographic signs from orthopantomogram, the course of inferior alveolar canal and proximity to the third molar tooth in CBCT. The buccal course of inferior alveolar canal was most frequently detected (n=36) in CBCT findings. The impacted lower third molar roots were 55% contact with the inferior alveolar canal and 45% separate from the canal. On orthopantomogram, the following signs were strongly correlated with actual contact: Superimposed relationship between the third molar and the inferior alveolar canal. CBCT is useful as a presurgical planning in patients with impacted mandibular third molar showing close proximity to the inferior alveolar canal.</p>

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A comparative study of cone-beam computed tomography and conventional panoramic radiography in assessing the topographic relationship between the mandibular canal and impacted third molars

Cited by 265 publications

References 23 publications

Classification of bifid mandibular canals using cone beam computed tomography

Classification of bifid mandibular canals using cone beam computed tomography

Reliability of Panoramic-Radiograph to Determine the Position of Third-Molar from Inferior-Alveolar-Canal

Pre-operative assessment of impacted mandibular third molar and inferior alveolar canal using orthopantomograhpy and cone beam computed tomography

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