Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography

Shaban, Baratollah; Khajavi, Amin; Khaki, Nasim; Mohiti, Yones; Mehri, Tahere; Kermani, Hamed

doi:10.5125/jkaoms.2017.43.6.395

Cited by 16 publications

(14 citation statements)

References 27 publications

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“…Several studies have appraised the anatomy and prevalence of the AL by using different methods such as cadaver dissection; radiographs such as orthopantomograms, 3D CT, and CBCT; or a combination of anatomical and radiographic evaluation ( Apostolakis and Brown, 2012 , Greenstein and Tarnow, 2006 , Jacobs et al, 2004 , Kuzmanovic et al, 2003 , Misch and Crawford, 1990 , Misch and Crawford, 1990 , Shaban et al, 2017 , Uchida et al, 2009 ).…”

Section: Discussionmentioning

confidence: 99%

Anterior loop of the mental nerve in Saudi sample in Riyadh, KSA. A cone beam computerized tomography study

Alyami

Alotaibi

Koppolu

et al. 2021

The Saudi Dental Journal

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Background The portion of inferior alveolar nerve (IAN) existent anterior to the mental foramen, before parting the canal, is referred to as the anterior loop (AL) of the IAN. The presence of AL is important when placing the implant interforaminal area of the mandible. These anatomical discrepancies can be assessed by cone-beam CT (CBCT), for evaluating its position and exact location. The AL is classified into Types I, II and III. In Type I, Y-shaped anatomy; in Type II, anatomy is T-shaped; and in Type III, Y-shaped anatomy is seen, and the incisive branch is thicker as compared to the main branch. Aim In this study, we aim to analyse the prevalence of different types of AL of the IAN in Saudi sample population. Materials and Methods The present study is a retrospective analysis of 149 (86 female & 63 male) CBCT images of patients records from 2018 June to 2018 September in the department of implant dentistry, KSMC, Riyadh. The age range of the patients who participated in the study was 30–60 years. The mean age of female participants is 42.5 ± 5.8, for the male participants is 48.6 ± 11.4 years respectively. Results The most frequent type of AL of mental nerve noticed on the right side was of type I (59.1%), followed by type II (27.5%) and type III (13.4%). The most frequent type of AL of mental nerve noticed on the left side was type I (61.7%), followed by type II (26.8%) and type III (11.4%). Conclusion The results of the study encourage the usage of CBCT for planning implant treatment. We also suggest that it is obligatory for professionals to categorise the presence of AL and to measure them appropriately when planning for the procedures in the interforaminal region.

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Section: Discussionmentioning

confidence: 99%

Anterior loop of the mental nerve in Saudi sample in Riyadh, KSA. A cone beam computerized tomography study

Alyami

Alotaibi

Koppolu

et al. 2021

The Saudi Dental Journal

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“…Considering these findings, it is important to consider a minimum safe distance to the AL, which may vary widely in function of the different studies carried out: 2 mm, 4 mm, or 6 mm. [192021222324] In practical terms, we emphasize the importance of a case by case evaluation and no specific measurements for a safety distance. Individual, gender, age, race, assessing technique used, and degree of alveolar bone atrophy largely influence the different anatomical variations.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the anterior loop of the mandibular canal using cone-beam computed tomography in Eastern India: A record-based study

Sinha¹,

Kandula²,

Sangamesh³

et al. 2019

J Int Soc Prevent Communit Dent

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Objective: The aim of this study was to assess the presence and course of the anterior loop (AL) in an Odisha sample population using cone-beam computed tomography (CBCT) and to accurately identify and analyze the length, height, and diameter of AL in male and females. Materials and Methods: CBCT images from 1000 patients obtained for various clinical indications were randomly selected and evaluated to determine the presence, length, height, and diameter of the AL. The various parameters were then compared based on gender, age, and the side of the mandible. The data were analyzed using the Chi-square test, independent t -test, multiple post hoc procedure, and one-way ANOVA test. Results: An AL was identified in 9.7% of the cases, and its mean length ranged from 1.8 to 4.8 mm. The loop had a greater mean length and was significantly more prevalent in males. The diameter ranged from 1 to 4 mm and height ranged from 7.8 to 15.1 mm. The AL was most commonly found in the middle-aged patients (39–48 years) which attributed to around 27.83%. Conclusion: In this study, a lower prevalence of the AL of the mandibular canal was found. Being an anatomical variation, an exact evaluation of the AL must be established using the imaging techniques prior to any surgical procedure.

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“…According Solar et al's classification, the paths of the MC were in frequency order: type III (AL + Y), type II (T), and type I (Y) [ 3 , 4 , 34 ] ( Table 3 ). Moreover, they had another type called “others,” including other forms of AL seen at 26.8% [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Mental Foramen with Cone Beam Computed Tomography: A Systematic Review of Literature

Pelé

Berry

Evanno

et al. 2021

Radiology Research and Practice

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Purpose. The aim of this systematic review is to assess whether the anatomy of mental foramen is precisely evaluable with cone beam computed tomography (CBCT) before implantation in humans. Methods. A systematic review was carried out to evaluate the anatomy of mental foramen (size, position, symmetry, anterior loop, and accessory mental foramen or multiple mental foramina). According to Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines, an electronic search of three databases (Medline, Web of Science, and Cochrane Library) was undertaken until June 2020 and was supplemented by manual searching. Two reviewers will independently perform the processes of study inclusion, data extraction, and quality assessment. Systematic reviews, studies about children, and case reports were excluded. Only studies using CBCT to do preoperative evaluation were selected. Results. From 728 potentially eligible articles, 72 were included in the qualitative analysis and quantitative synthesis. This systematic review provided an assessment of the anatomy of the mental foramen. The mental foramen was located mostly between the two premolars (between 50.4% and 61.95%) or apically to the second premolar (from 50.3% to 57.9%). The mean diameter of the mental foramen was bigger in males than in females; the difference between them could reach 0.62 mm. The anterior loop seemed to be longer in males (between 0.87 ± 1.81 and 7.25 ± 2.02 mm) than in females (between 0.81 ± 1.18 and 6.52 ± 1.63 mm) and with the presence of teeth (from 0.91 ± 1.18 to 2.55 ± 1.28 for dentate people and from 0.25 ± 0.61 to 2.40 ± 0.88 mm for edentate population). The anterior loop and the accessory mental foramina were detected more frequently with CBCT than panoramic X-ray: only between 0.0 and 48.6% AMFs detected with CBCT were also seen with panoramic images. Clinical Significance. The mental foramen (MF) is an important landmark for local anesthesia and surgical and implantology procedures. Its location, morphology, and anatomical variations need to be considered to avoid mental nerve injury. The aim of this review is to evaluate the mental foramen using CBCT through a systematic literature review to improve knowledge of this complex area for the clinician.

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Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography

Cited by 16 publications

References 27 publications

Anterior loop of the mental nerve in Saudi sample in Riyadh, KSA. A cone beam computerized tomography study

Anterior loop of the mental nerve in Saudi sample in Riyadh, KSA. A cone beam computerized tomography study

Assessment of the anterior loop of the mandibular canal using cone-beam computed tomography in Eastern India: A record-based study

Evaluation of Mental Foramen with Cone Beam Computed Tomography: A Systematic Review of Literature

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