scholarly journals Evaluation of the Lingual Canals of Mandible in Cone Beam Computed Tomography

2019 ◽  
Vol 70 (11) ◽  
pp. 4105-4111
Keyword(s):  
Computed Tomography ◽  
Inferior Alveolar Nerve ◽  
Mandibular Canal ◽  
Sensory Innervation ◽  
Cone Beam ◽  
Cortical Plate ◽  
Incisive Canal ◽  
Mandibular Body ◽  
Mylohyoid Nerve ◽  
Lingual Canal

This study aims to assess the frequency of the lingual foramina and canals relative to their location on the mandibular cortical plate and also to closely inspect the course of the lingual canals inside the mandibular body using 3D reconstruction of the evaluated area. A retrospective study was conducted with 55 cone bean computed tomography (CBCT) scans in order to analyze the location, number, course and anastomosing pattern of the lingual canals. A total number of 165 lingual canals (LCs) were recorded from 55 patients, as follows: 94 median (MLC), 16 paramedian (PLC) and 55 lateral lingual canals (LLC). MLCs were a constant finding in all 55 patients (100% of the cases), PLCs were present in 15 patients (27.3% of the cases), and LLCs were identified in 35 patients (63.3% of the cases). The anastomosing pattern of the MLC, in which a supraspinous canal anastomosed with an infraspinous canal, was found in 10.9% of the cases (6 of 55 patients),. The LLCs were anastomosed with the mandibular incisive canal (MIC) in 56.3% of the cases (31 of 55 LLCs) and with the mandibular canal (MC) in 3.6% of the cases (2 of 55 LLCs). CBCT revealed itself to be a reliable tool for evaluating the intramandibular topography of the LCs. The anastomosing pattern of the lingual canals might raise the question whether the LCs could be responsible for incomplete anesthesia after conventional mandibular block by carrying sensory innervation from the mylohyoid nerve to the inferior alveolar nerve. Keywords: mandible, lingual canal, intramandibular anastomosis, CBCT

scholarly journals Evaluation of the Lingual Canals of Mandible in Cone Beam Computed Tomography

2019 ◽  
Vol 70 (11) ◽  
pp. 4105-4111
Author(s):  
Andrei Leonid Chirita ◽  
Mugurel Constantin Rusu ◽  
Ruxandra Stanescu ◽  
Gabriela Tanase ◽  
Mihai Butucescu ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Inferior Alveolar Nerve ◽  
Mandibular Canal ◽  
Sensory Innervation ◽  
Cone Beam ◽  
Cortical Plate ◽  
Incisive Canal ◽  
Mandibular Body ◽  
Mylohyoid Nerve

This study aims to assess the frequency of the lingual foramina and canals relative to their location on the mandibular cortical plate and also to closely inspect the course of the lingual canals inside the mandibular body using 3D reconstruction of the evaluated area. A retrospective study was conducted with 55 cone bean computed tomography (CBCT) scans in order to analyze the location, number, course and anastomosing pattern of the lingual canals. A total number of 165 lingual canals (LCs) were recorded from 55 patients, as follows: 94 median (MLC), 16 paramedian (PLC) and 55 lateral lingual canals (LLC). MLCs were a constant finding in all 55 patients (100% of the cases), PLCs were present in 15 patients (27.3% of the cases), and LLCs were identified in 35 patients (63.3% of the cases). The anastomosing pattern of the MLC, in which a supraspinous canal anastomosed with an infraspinous canal, was found in 10.9% of the cases (6 of 55 patients),. The LLCs were anastomosed with the mandibular incisive canal (MIC) in 56.3% of the cases (31 of 55 LLCs) and with the mandibular canal (MC) in 3.6% of the cases (2 of 55 LLCs). CBCT revealed itself to be a reliable tool for evaluating the intramandibular topography of the LCs. The anastomosing pattern of the lingual canals might raise the question whether the LCs could be responsible for incomplete anesthesia after conventional mandibular block by carrying sensory innervation from the mylohyoid nerve to the inferior alveolar nerve.

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

2014 ◽  
Vol 15 (6) ◽  
pp. 740-745
Author(s):  
Mojdeh Mehdizadeh ◽  
Navid Ahmadi ◽  
Mahsa Jamshidi
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Mandibular Canal ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Cross Sectional ◽  
Mandibular Third Molar ◽  
The Relationship

ABSTRACT 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. How to cite this article Mehdizadeh M, Ahmadi N, Jamshidi M. Evaluation of the Relationship between Mandibular Third Molar and Mandibular Canal by Different Algorithms of Cone-beam Computed Tomography. J Contemp Dent Pract 2014;15(6):740-745.

scholarly journals Inferior alveolar nerve paraesthesia after overfilling into the mandibular canal, confirmed by cone-beam computed tomography: a case report

2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Claudemir de Souza Júnior ◽  
Ricardo Machado ◽  
Renee Ashley Batts ◽  
Lucas da Fonseca Roberti Garcia
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Inferior Alveolar Nerve ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Filling Material ◽  
Mandibular Molar ◽  
Patient Reported

The filling material should be restricted to the root canal, and not extend to the periradicular tissues. Overextension occurs when there is an overflow of gutta-percha and sealer, whereas overfilling refers to the overflow only of sealer beyond the apical foramen. Both may cause several negative clinical consequences. Nevertheless, an accurate diagnosis of where they occurred cannot always be performed by conventional radiographic examination, because of the two-dimensional aspect of the image. This paper describes a clinical case of labiomandibular paraesthesia after overfilling into the mandibular canal (MC), as diagnosed by cone-beam computed tomography (CBCT), later used to perform the treatment planning. A 34-year-old Caucasian female patient sought a private dental clinic complaining of pain in the right mandibular posterior region. After taking the anamnesis and performing clinical and radiographic exams, the patient was diagnosed with pulp necrosis in the second right mandibular molar, and underwent root canal treatment. The final radiography showed overextension or overfilling, probably into the MC. About 2 hours after the procedure, the patient reported paraesthesia of her lower right lip and chin. A CBCT confirmed a small overfilling into the MC. For this reason, vitamin B12 was prescribed as the first treatment option. After 7 days, the patient reported a significant decrease in paraesthesia, and was completely normal after 15 days. This case report shows that CBCT is an effective radiographic diagnostic tool that can be used as an alternative in clinical cases of labiomandibular paraesthesia caused by overextension or overfilling.   Keywords Endodontic treatment; Overfilling; Paraesthesia; Conebeam computed tomography.

Retrospective Study of the Anterior Loop of the Inferior Alveolar Nerve and the Incisive Canal Using Cone Beam Computed Tomography

2013 ◽  
Vol 28 (2) ◽  
pp. 388-392 ◽  
Author(s):  
Marcio Borges Rosa ◽  
Bruno Salles Sotto-Maior ◽  
Vinicius de Carvalho Machado ◽  
Carlos Eduardo Francischone
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Cone Beam Computed Tomography ◽  
Inferior Alveolar Nerve ◽  
Cone Beam ◽  
Incisive Canal ◽  
Anterior Loop

scholarly journals Reliability of cone beam computed tomography in locating and measuring the mandibular canal for planning of surgical techniques in the mandibular body

2015 ◽  
Vol 37 (4) ◽  
pp. 182-187
Author(s):  
Francisco Azcárate-Velázquez ◽  
Jorge Bertos-Quilez ◽  
Francisco Marmesat-Guerrero ◽  
Pablo Núnez-Arcos ◽  
Federico Hernández-Alfaro ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Surgical Techniques ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Mandibular Body

scholarly journals Relationship between mandibular incisive canal and mental foramen using cone-beam computed tomography in a selected Brazilian Amazon population

RSBO ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 12-09
Author(s):  
Cláudia Gemaque Marinho ◽  
Pedro Luiz de Carvalho ◽  
Edson Marcos Leal Soares Ramos ◽  
Fabricio Mesquita Tuji ◽  
Nicolau Conte Neto
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Brazilian Amazon ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Cone Beam ◽  
Median Line ◽  
Anatomic Structure ◽  
Incisive Canal ◽  
The Mean

The mandibular canal is an anatomic structure that extends bilaterally from the mandibular foramen to the mental foramen. Objective: To identify the presence, extension, and length of the mandibular incisive canal with a cone-beam computed tomography, and to determine correlations with the positioning of the mental foramen and mandibular canal in a selected Brazilian Amazon population. Material and methods: The measurements of the incisive canal that ends at the mandible’s lower buccal and lingual border, at its initial and terminal portions, were obtained from 95 odontological examinations using cone-beam computed tomography. These measurements were compared with the measurements of the distance between the mandibular canal ending at the same cortices in 2 distinct regions at the mental foramen region. Pearson’s correlation test was used to establish a relationship between these measurements. Results: The mandibular incisive canal’s bilateral identification mean age was of 44.29 ± 11.04 y and the mean length was 10.38 ± 4.01 mm. Moderate correlations were found between the measurements of the mandibular incisive canal, mental foramen, and mandibular canal. Conclusion: The mandibular incisive canal can reach the region of the median line, and it did not present differences between the genders or for the length and distance of the mandibular incisive canal to the cortices ending at the mandible base.

scholarly journals Evaluation of Juxta-Apical Radiolucency as a Risk Factor for Inferior Alveolar Nerve Damage: A Cone-Beam Computed Tomography (CBCT) Study

2020 ◽  
Vol 21 (10) ◽  
Author(s):  
Leila Khojastepour ◽  
Mohammad Ghasemi ◽  
Shabnam Rasti ◽  
Mahvash Hasani
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Cortical Plate ◽  
Third Molar Surgery ◽  
Cross Sectional ◽  
The Relationship

Background: Injuries to the lingual and inferior alveolar nerves (IAN) through third molar surgery are common and complicated clinical problems. Juxta-apical radiolucency (JAR) is one of the new radiographic signs, suggestive of IAN damage. Objectives: This study aimed to assess the relationship between JAR and IAN and to determine its effects on the cortical plate. Methods: In this cross-sectional study, after evaluating an initial sample of 450 cases, the cone-beam computed tomography (CBCT) images of 20 patients with JAR were compared with those of 20 age-matched patients without JAR in the axial and multi-planar images. The relationship between JAR and IAN was evaluated, and thinning of the mandibular cortical plates was also investigated. Statistical analysis was performed using descriptive tests and chi-square test in SPSS version 23. Results: The relationship between JAR and IAN was statistically significant (P = 0.001). The cortical plates were perforated in 75% of cases with JAR as opposed to 45% of cases without JAR (P = 0.06). The relationship between the location of JAR and IAN was also significant (P = 0.004). Conclusions: Based on the present results, JAR was associated with IAN in most cases. Thinning of the cortical plates was observed in all cases of JAR.

Prevalence and position of mandibular incisive canal, anterior loop of the mandibular canal and lingual foramen using cone beam computed tomography

2020 ◽  
Author(s):  
Zahra Ghoncheh ◽  
Behrang Moghaddam Zadeh ◽  
Sahar Shaeri
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mandibular Canal ◽  
T Test ◽  
Cone Beam ◽  
Incisive Canal ◽  
Initiation Point ◽  
Lingual Foramen ◽  
Anterior Loop ◽  
The Mean

Objective: Comprehensive knowledge about the anatomy of the surgical site is an important prerequisite for any surgical procedure. This study aimed to assess the prevalence, position and anatomical characteristics of mandibular incisive canal (MIC), lingual foramen (LF) and anterior loop of the mandibular canal (ALMC) in an Iranian population using cone beam computed tomography (CBCT). Materials and Methods: This study was conducted on 103 patients who underwent CBCT prior to implant placement. The CBCT scans of patients were evaluated by two observers to determine the visibility and length of MIC, LF and ALMC. The buccolingual inclination of MIC at the initiation point of canal and canal path were also studied. Results: The prevalence of MIC, LF and ALMC was 90%, 76% and 84% on CBCT scans, respectively. The mean length of MIC and ALMC was 7.5mm and 1.2mm, respectively and the mean width of LF was 0.9mm. The MIC had a buccal inclination at the initiation point and approximated the lingual plate as extended towards the midline. Analytical statistics including independent samples t-test, paired samples t-test, ANOVA analyses were applied. Conclusion: Considering the high prevalence of MIC, ALMC and LF and wide range of MIC (1.2mm to 20mm) and ALMC (1mm to 9.9mm) length, CBCT is recommended for patients prior to surgical procedures in the anterior mandible to determine the exact location of these anatomical structures.

scholarly journals Cone beam computed tomography for evaluation of mandibular lingual canal in an Egyptian subpopulation

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Rabab Amin Elmasry ◽  
Mona Mahmoud Abu El-Fotouh ◽  
Shaimaa Mohamed Abu el Sadat ◽  
Wael Aboelmaaty
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Cortical Plate ◽  
Anatomical Location ◽  
Canal Diameter ◽  
Significant Difference ◽  
High Prevalence ◽  
The Mean ◽  
Lingual Canal

Abstract Background A sample of three hundred cone beam computed tomography (CBCT) scans was evaluated. Median lingual canals (MLC) were identified and classified according to their anatomical location. Evaluation of the canal diameter, length, thickness of the buccal cortical plate, and the remaining bone above and below the canal was performed. The results were assessed twice with 2 weeks interval and statistically analyzed. The study was designed to evaluate MLC in an Egyptian subpopulation by the use of CBCT. Results Most of the scans presented with one MLC, with a maximum number of four canals, the mean diameter was 1.68± 1.27 mm, with a statistically significant difference in the length from the canal opening to the alveolar crest between females and males. Conclusions As the study detected a high prevalence of the MLC with a vast majority of the canals supra-spinosum, a vigilant examination is required using CBCT to avoid subsequent bleeding and airway obstruction.

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