Inferior alveolar nerve damage after lower third molar surgical extraction: A prospective study of 1117 surgical extractions

Valmaseda‐Castellón, Eduard; Berini-Aytés, Leonardo; Gay‐Escoda, Cosme

doi:10.1067/moe.2001.118284

Cited by 279 publications

(190 citation statements)

References 21 publications

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“…[1][2][3][4] For such patients, it is necessary to quantitatively evaluate the severity of the damage and its recovery after treatment. However, at present, there are no purely objective clinical neurosensory testing modalities for the evaluation of the IAN.…”

Section: Discussionmentioning

confidence: 99%

“…An injury to the IAN during dental treatment, including impacted tooth extraction, dental implant placement and osteotomy, may cause prolonged paraesthesia or paralysis of the lower lip and mental region. [1][2][3] Paraesthesia can also be caused by traumatic injury, osteomyelitis and pressure from intrabony mass lesions. When an IAN injury occurs, subjective methods based on patient complaints are commonly used to assess the severity of the neurosensory deficit.…”

Section: Introductionmentioning

confidence: 99%

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Diffusion tensor imaging of the inferior alveolar nerve using 3T MRI: a study for quantitative evaluation and fibre tracking

Kotaki¹,

Sakamoto²,

Kretapirom³

et al. 2016

Dentomaxillofacial Radiology

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Objectives: Diffusion tensor imaging (DTI) can provide structural information and objective values for nerves. The aims of this study were to perform quantitative evaluation and fibre tracking of the normal inferior alveolar nerve (IAN) using DTI on 3.0-T MRI. Methods: DTI was applied to 92 IANs of 46 healthy volunteers. Circular regions of interest (ROIs) were placed on three different positions at the mandibular foramen, second molar and mental foramen of each nerve on apparent diffusion coefficient (ADC) and fractional anisotropy (FA) maps, and the ADC and FA of each ROI were measured. Differences in the values arising from the nerve positions were evaluated. Furthermore, fibre tracking of the IANs was performed by tractography, and the quality of visualization was evaluated. Results: There were no significant differences in the ADC and FA between the right and left sides regardless of the anteroposterior positions. Regarding differences arising from the anteroposterior measurement positions, the ADC and FA showed no significant differences (p . 0.017), except for the ADCs between the positions at the mandibular foramen and mental foramen in the left side (p 5 0.0068). Overall, 70 (76%) of the 92 IANs could be visualized fully or partially by tractography. Conclusions: The ADC and FA of the IAN were successfully obtained from healthy volunteers using DTI and were confirmed to be symmetrical regardless of the measurement positions. DTI is a feasible technique for the quantitative evaluation and visualization of the IAN.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diffusion tensor imaging of the inferior alveolar nerve using 3T MRI: a study for quantitative evaluation and fibre tracking

Kotaki¹,

Sakamoto²,

Kretapirom³

et al. 2016

Dentomaxillofacial Radiology

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show abstract

“…Cette relation racines des troisièmes molaires/NAI et le besoin d'effectuer une ostéotomie doivent être soigneusement examinés. Ainsi, le taux de lésions du NAI peut être minimisé sur la base de ces précautions préopératoires [40].…”

Section: Discussionunclassified

Difficultés d’avulsion de la troisième molaire mandibulaire incluse : place de l’orthopantomogramme

Tamba

Tine

Bâ

et al. 2015

Med Buccale Chir Buccale

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Résumé -Objectif : L'objectif de cette étude était de mettre en exergue le rôle de l'orthopantomographie dans la prédiction des difficultés rencontrées lors de l'avulsion des troisièmes molaires incluses en utilisant l'échelle de Pederson. Abstract -Difficulties of impacted lower third molar extraction: the role of the orthopantomogram. Introduction: The orthopantomogram allows for the classification of impacted lower third molars according to depth, the spatial relationship with the ramus and the root relationship/mandibular canal. The aim of this study was to show the role of orthopantomography in the prediction of the difficulties encountered in the extraction of impacted lower third molars using the Pederson scale. Material and Method: This was a cross-sectional descriptive study in the Oral Surgery Service of the Dentistry Department at the Cheikh Anta Diop University of Dakar. The study was done between October 2012 and February 2013. 62 patients were involved. Results: The age group 15-25 was the most represented (57%). The mean age of patients was 26 ± 9 years with extremes of 15 and 73 years. Lower third molars with two roots accounted for 92%. Horizontal angulation (44%) and mesial angulation (35%) were the most represented. Half of the sample exhibited a depth of inclusion of position A (54%). The position I represented 40% of cases. In 33% of cases there was no contact between the roots and the mandibular canal. Conclusion: The orthopantomogram allows grading of the difficulty level for third molar extraction, using the Pederson scale. In our sample, extraction was difficult in 69% of the cases, moderate in 21% and easy in 33%.

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“…There is evidence to suggest that factors like older age, bone cutting distal to the third molar and the radiologic relationship between 3rd molar and IAC alongwith deflection of the mandibular canal, increase the risk of IAN damage [11].…”

Section: Discussionmentioning

confidence: 99%

Protocol for Removal of Third Molar Root Tips from the Inferior Alveolar Canal—Crossing the line

Punga¹,

Keswani²

2013

J. Maxillofac. Oral Surg.

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Introduction The safe removal of third molars involved with the inferior alveolar canal (IAC) has been an area of concern since long. Many times we hesitate for the removal of third molars, fearing injury to the inferior alveolar nerve. Materials and Methods The authors here describe a simple technique which can be used to remove third molars showing evidence of proximity to IAC on presurgical radiographic evaluation, as well as those root tips which, during removal, accidentally enter the IAC space. Conclusion A step-by-step protocol is presented along with necessary precautions during the operative procedure.

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Inferior alveolar nerve damage after lower third molar surgical extraction: A prospective study of 1117 surgical extractions

Cited by 279 publications

References 21 publications

Diffusion tensor imaging of the inferior alveolar nerve using 3T MRI: a study for quantitative evaluation and fibre tracking

Diffusion tensor imaging of the inferior alveolar nerve using 3T MRI: a study for quantitative evaluation and fibre tracking

Difficultés d’avulsion de la troisième molaire mandibulaire incluse : place de l’orthopantomogramme

Protocol for Removal of Third Molar Root Tips from the Inferior Alveolar Canal—Crossing the line

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