Comparative Efficacy of Spiral Computed Tomography and Orthopantomography in Preoperative Detection of Relation of Inferior Alveolar Neurovascular Bundle to the Impacted Mandibular Third Molar

Jhamb, Aakarsh; Dolas, R. S.; Pandilwar, P.K.; Mohanty, Sujata

doi:10.1016/j.joms.2008.06.014

Cited by 73 publications

(93 citation statements)

References 21 publications

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“…Several studies 15,[17][18][19][20][21][22][23][24] that evaluated the relationship between the mandibular canal and the third molar suggest pre-operative evaluation by CT when specific signs are observed in panoramic radiography. In the present study, most panoramic radiographic signs were interruption of white line (20.4%) and darkening of roots (17.4%).…”

Section: Discussionmentioning

confidence: 99%

“…3 In the present study, we used the most common signs (darkening of roots, diversion of mandibular canal, narrowing of mandibular canal and interruption in white line) associated with a higher risk of IAN injury [15][16][17][18] (Figure 1). On the CBCT images, the presence or absence of corticalization between the mandibular third molar and the mandibular canal was evaluated using cross-sectional images.…”

Section: Methodsmentioning

confidence: 99%

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Correlation of panoramic radiography and cone beam CT findings in the assessment of the relationship between impacted mandibular third molars and the mandibular canal

Neves¹,

Souza²,

Almeida³

et al. 2012

Dentomaxillofacial Radiology

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Objectives: The aim of this study was to assess the reliability of four panoramic radiographic findings, both individually and in association, in predicting the absence of corticalization between the mandibular canal and the third molar on cone beam CT (CBCT) images. Methods: The sample consisted of 72 individuals (142 mandibular third molars) who underwent pre-operative radiographic evaluation before extraction of impacted mandibular third molars. On panoramic radiographs, the most common signs of corticalization (darkening of roots, diversion of mandibular canal, narrowing of mandibular canal and interruption of white line) and the presence or absence of corticalization between the mandibular third molar and the mandibular canal on CBCT images were evaluated. Results: Darkening of roots and interruption of white line associated with the absence of corticalization between the mandibular third molar and the mandibular canal on CBCT images were statistically significant, both as isolated findings (p50.0001 and p50.0006, respectively) and in association (p50.002). No statistically significant association was observed for the other panoramic radiographic findings, either individually or in association (p . 0.05). Conclusion: Darkening of roots and interruption of white line observed on panoramic radiographs, both as isolated findings and in association, were effective in determining the risk relationship between the tooth roots and the mandibular canal, requiring threedimensional evaluation of the case.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Correlation of panoramic radiography and cone beam CT findings in the assessment of the relationship between impacted mandibular third molars and the mandibular canal

Neves¹,

Souza²,

Almeida³

et al. 2012

Dentomaxillofacial Radiology

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“…A utilização da TC para avaliação do CM é recente, mostrando-se superior aos métodos bidimensionais de obtenção de imagens, principalmente no que diz respeito à avaliação de estruturas anatômicas da mandíbula, visto que as relações topográficas podem ser visualizadas em múltiplos planos (sagital, transversal e horizontal), bem como a reprodução de forma tridimensional, o que pode alterar favoravelmente o plano cirúrgico (Jhamb et al, 2009;Lofthag-Hansen et al, 2009). No entanto, a falta de familiaridade dos Médicos Veterinários com a técnica de obtenção das imagens, e as dificuldades resultantes de sua leitura e interpretação, podem ocasionar erros por requerer um bom conhecimento da anatomia macroscópica e fisiologia, o que leva à necessidade constante de atualização, bem como saber o momento certo de usá-la (Friedland et al, 2008;Lee et al, 2010).…”

Section: Discussionunclassified

Estudo anatômico do trajeto do canal mandibular em felinos (Felis catus domesticus)

Cotrim

Nardotto

Abreu

et al. 2015

Arq. Bras. Med. Vet. Zootec.

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RESUMOObjetivou-se descrever, por meio de tomografia computadorizada, o trajeto do canal mandibular (CM) em 20 gatos sem raça definida, com ausência de alterações na cavidade oral, provenientes do Centro de Controle de Zoonoses do Distrito Federal. Foram realizados cortes tomográficos com 2mm de espessura, acompanhando todo o trajeto do CM, tendo como referência a região do forame mandibular, as raízes distais e mesiais dos dentes pré-molares e molares e o forame mentoniano, obtendo-se medidas desde o CM até as faces vestibular, lingual, ventral e alveolar (profundidade) do corpo da mandíbula, bem como seu diâmetro. Pôde constatar que o CM manteve-se no aspecto lingual do corpo da mandíbula desde o forame mandibular até a raiz mesial do 1º pré-molar, onde se deslocou para a face vestibular, emergindo no forame mentoniano. Com relação à profundidade, seu trajeto sofreu declive a partir do forame mandibular até a região da raiz mesial do 1º molar, onde alcançou seu ponto mais profundo para prosseguir em suave ascensão até o forame mentoniano. Os dados apresentados contribuem para o estudo anatômico da mandíbula de gatos, bem como auxiliam no melhor planejamento e execução de procedimentos cirúrgicos na mandíbula dessa espécie.

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“…9,[12][13] Before CBCT was introduced, surgeons had only an estimate of the vertical position of the mandibular canal to the mandibular border. 14 After the introduction of CBCT, three-dimensional imaging became more readily available in order to use in dental applications.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography

Mehdizadeh

Ahmadi

Jamshidi

2014

The Journal of Contemporary Dental Practice

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Objectives: Exact location of the inferior alveolar nerve (IAN) bundle is very important. The aim of this study is to evaluate the relationship between the mandibular third molar and the mandibular canal by cone-beam computed tomography. Study design:This was a cross-sectional study with convenience sampling. 94 mandibular CBCTs performed with CSANEX 3D machine (Soredex, Finland) and 3D system chosen. Vertical and horizontal relationship between the mandibular canal and the third molar depicted by 3D, panoramic reformat view of CBCT and cross-sectional view. Cross-sectional view was our gold standard and other view evaluated by it.Results: There were significant differences between the vertical and horizontal relation of nerve and tooth in all views (p < 0.001). Conclusion:The results showed differences in the position of the inferior alveolar nerve with different views of CBCT, so CBCT images are not quite reliable and have possibility of error.

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Comparative Efficacy of Spiral Computed Tomography and Orthopantomography in Preoperative Detection of Relation of Inferior Alveolar Neurovascular Bundle to the Impacted Mandibular Third Molar

Cited by 73 publications

References 21 publications

Correlation of panoramic radiography and cone beam CT findings in the assessment of the relationship between impacted mandibular third molars and the mandibular canal

Correlation of panoramic radiography and cone beam CT findings in the assessment of the relationship between impacted mandibular third molars and the mandibular canal

Estudo anatômico do trajeto do canal mandibular em felinos (Felis catus domesticus)

Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography

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