Juxta-apical radiolucency and relations with surrounding structures on cone-beam computed tomography

Yalçın, Eda Didem; Artas, Ali

doi:10.1016/j.bjoms.2019.12.004

Cited by 7 publications

(21 citation statements)

References 19 publications

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“…Nascimento et al found that JAR was in the lingual position relative to IAN (59.6%) [12], while in a study by Kapila et al, the most frequent positions were buccal and superior to IAN [17]. Also, Yalcin and Artas showed that JAR was mostly in the superior position [15]. In our study, lingual and buccal positions were the most common ones, and most JARs with paresthesia were on the lingual side of the mandibular canal.…”

Section: Discussionsupporting

confidence: 44%

“…Also, Gilvetti et al [9] studied 50 cases of JAR in panoramic images and found no temporary or permanent paresthesia after at least 18 months. Yalcin and Artas [15] con rmed this result, as they found no signi cant relationship between JAR and the mandibular canal. In a study by Nascimento et al, in most JAR cases, the mandibular canal is positioned lingual to the third molar and contacts the JAR [12].…”

Section: Discussionmentioning

confidence: 84%

“…In contrast, a study by Kapila et al showed that 28.57% of JAR cases were in contact with the mandibular canal in CBCT images [18]. Similarly, Yalcin and Artas found that JAR was mostly distant from the mandibular canal (76.3%) [15].…”

Section: Discussionmentioning

confidence: 89%

“…On the other hand, in the study by Nascimento et al, JAR was related to vertically positioned teeth [13], although panoramic images were examined in their study. Yalcin and Artas also found that the vertical position was the most common angulation related to JAR in CBCT images; however, they did not include a control group in their study [15].…”

Section: Discussionmentioning

confidence: 90%

“…Considering the limitations of previous studies, which mostly applied panoramic radiography [9,13] and lacked a control group [9,15], in this case-control study, we aimed to determine the relationship between the presence of JAR in cone-beam computed tomography (CBCT) images and the presence of paresthesia after mandibular third molar surgeries. Moreover, we scrutinized whether the presence of JAR is related to tooth angulation, proximity to the mandibular canal, position to the IAN and thinning of the cortical plates.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Presence of Paresthesia in Patients with Juxta-apical Radiolucency after Third Molar Surgery: A Case-control Study

Hasani

Razavi

Haghnegahdar

et al. 2021

Preprint

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Background: Juxta-apical radiolucency (JAR) has been presented as a radiographic sign, suggestive of the IAN injury through third molar surgery. This study aimed to evaluate the relation of JAR with paresthesia in cone-beam computed tomography (CBCT) images and to determine whether the presence of JAR is related to tooth angulation, proximity to the mandibular canal, position to the IAN and thinning of the cortical plates.Methods: Of an initial sample of 545 mandibular third molars, a total of 75 JAR and 75 control teeth were evaluated by CBCT. The association of JAR with the IAN, position to IAN, lingual cortical plate thinning, and tooth angulation was investigated in this study. Temporary and permanent paresthesia were also examined in the subjects. Descriptive statistics, Chi-square test, and Fisher’s exact test were performed for statistical analysis.Results: A significant relationship was found between JAR and temporary paresthesia (P=0.034). However, there was no case of permanent paresthesia. JAR showed no significant relationship with the tooth angulation, cortical plate thinning, position to IAN and proximity to the mandibular canal. The lingual position of JAR relative to the mandibular canal was related to the presence of paresthesia in the JAR group. Also, most cases of paresthesia showed some degree of lingual cortical plate thinning (P=0.012). Conclusion: JAR is generally in contact with the mandibular canal, and some degree of cortical thinning can be found in most cases. In this study, JAR was significantly related to temporary paresthesia. The present findings may indicate the increased risk of nerve injury during the surgical removal of third molars.

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Section: Discussionsupporting

confidence: 44%

Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluating the Presence of Paresthesia in Patients with Juxta-apical Radiolucency after Third Molar Surgery: A Case-control Study

Hasani

Razavi

Haghnegahdar

et al. 2021

Preprint

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Mandibular canal vs. inferior alveolar canal: Evidence‐based terminology analysis

et al. 2020

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Introduction The mandibular canal, as it was formerly named in Terminologia Anatomica (TA), has also been called the inferior alveolar (nerve) canal in many scientific publications. This study was conducted to investigate how these terms have been understood in different regions and different areas of expertise and to discuss the appropriate future application of the term “mandibular canal.” Methods A literature search was conducted using PubMed, and articles using different terms for this structure were classified into two groups, inferior alveolar canal/inferior alveolar nerve canal (IAC/IANC) and the mandibular canal (MC). The 50 most recent articles in each group were included. Publication year, journal title, country of the first author, and affiliation of all authors were recorded in both groups for all 100 articles. Results There was a significant difference between the IAC/IANC and MC groups in the numbers of anatomy journals, other journals, and anatomy affiliations. Turkey published most frequently with a total of 15 articles, followed by Iran with 10 articles, and China/India/United States with seven each. When the six countries of the first author that had three or more publications in each group were compared, only Turkey appeared in both groups; otherwise, different countries were in the two groups. Conclusions Based on the results of this analysis, and considering that the tentative new term “inferior alveolar foramen” is used in the latest TA, we suggest that the mandibular canal should be renamed the “inferior alveolar canal.”

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Evaluating the presence of IAN injury in patients with juxta-apical radiolucency after third molar surgery: a retrospective cohort study

et al. 2021

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Background Juxta-apical radiolucency (JAR) has been presented as a radiographic sign, suggestive of the IAN injury through third molar surgery. This study aimed to evaluate the relation of JAR with IAN injury in cone-beam computed tomography (CBCT) images and to determine whether the presence of JAR is related to tooth angulation, proximity to the mandibular canal, position to the IAN, and thinning of the cortical plates. Methods Of an initial sample of 545 mandibular third molars, a total of 75 JAR+ and 75 JAR− teeth were evaluated by CBCT. We assessed the relationship between the presence of JAR in cone-beam computed tomography (CBCT) images and the presence of IAN injury after mandibular third molar surgeries. Moreover, we investigated whether the presence of IAN injury is related to tooth angulation, proximity to the mandibular canal, position to the IAN, and thinning of the cortical plates. Descriptive statistics, Chi-square test, and Fisher’s exact test were performed for statistical analysis. Results A significant relationship was found between JAR and temporary IAN injury (P = 0.036). However, there was no case of permanent IAN injury. IAN injury showed no significant relationship with the tooth angulation, position to IAN and proximity to the mandibular canal, lingual cortical plate thinning, sex, and age. Conclusions JAR is generally in contact with the mandibular canal, and some degree of cortical thinning can be found in most cases. In this study, JAR was significantly related to temporary IAN injury. JAR may increase the risk of nerve injury during the surgical removal of third molars.

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Juxta-apical radiolucency and relations with surrounding structures on cone-beam computed tomography

Cited by 7 publications

References 19 publications

Evaluating the Presence of Paresthesia in Patients with Juxta-apical Radiolucency after Third Molar Surgery: A Case-control Study

Evaluating the Presence of Paresthesia in Patients with Juxta-apical Radiolucency after Third Molar Surgery: A Case-control Study

Mandibular canal vs. inferior alveolar canal: Evidence‐based terminology analysis

Evaluating the presence of IAN injury in patients with juxta-apical radiolucency after third molar surgery: a retrospective cohort study

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