Inferior alveolar nerve canal position in relation to mandibular molars: A cone-beam computed tomography study

Vidya, Konduru; Pathi, Jugajyoti; Rout, Sanjeeb; Sethi, Alok Kumar; Sangamesh, NC

doi:10.4103/njms.njms_53_17

Cited by 7 publications

(7 citation statements)

References 22 publications

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“…The use of cone beam computed tomography (CBCT) in implantology, oral surgery, periodontology, orthodontics, and endodontics has greatly improved treatment success 1–7 . CBCT is the scan of choice for implant treatment planning as it offers greater measurement accuracy at lower radiation dosage, reduced scan time, and reduced artifacts compared to 2D and conventional medical CT imaging 8–13 .…”

mentioning

confidence: 99%

Incidental Findings in Cone Beam Computed Tomography for Dental Implants in 1002 Patients

Kachlan

Yang

Balshi

et al. 2021

Journal of Prosthodontics

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Purpose The purpose of this study is to analyze the frequency and elevate the awareness of the prevalence of nondental pathology in cone beam computed tomography (CBCT) scans taken for implant placement treatment planning and postplacement evaluation. The data from the CBCT should be read by an oral and maxillofacial radiologist for proper diagnosis of dental and nondental pathology and referred to the medical specialist for proper management when necessary. Materials and methods This retrospective study analyzed 1002 consecutive CBCT scans taken at a single private practice noting the prevalence of nondental pathology in CBCT images for all dental implant procedures. All scans were taken from November 2007 to March 2020. One board certified oral and maxillofacial radiologist systemically read all scans and reported all findings in the maxilla and mandible, condyles and TMJ, paranasal sinuses, nasal fossa, pharyngeal airway, skull base and temporal bone, neck soft tissues, and cervical spine. The incidental findings, variation of normal anatomy, or pathology reported in these structures were categorized based on anatomic location and significance and the incidence was investigated. Results Pathologies ranged from innocuous sinusitis, to more serious atherosclerotic calcification of the carotid arteries, narrowed airways, and neoplastic lesions. Fifty‐one different findings were noted, of which 36 were pathologies that required referral or follow‐up. Conclusions Incidental findings can be detected in CBCT scans for dental implants. The clinician must be familiar with the radiographic diagnosis of head and neck pathology, and/or must refer these images to an appropriate specialist for the radiographic interpretation of the full volume.

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confidence: 99%

Incidental Findings in Cone Beam Computed Tomography for Dental Implants in 1002 Patients

Kachlan

Yang

Balshi

et al. 2021

Journal of Prosthodontics

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“…Our values were difficult to compare with majority of papers, since some authors either grouped all patients of different age groups together and took the mean distances as Hsu et al [23], while other authors did not divide patient by age decades as we did in our study; Vidya et al [24] divided patients into three groups, GI from 25 to 30 years, GII 30-35 years, and GIII 32-42 years, no patients older than 42 years were included in the study. Kovisto et al [25] divided patient into three groups GI <18y, GII from 18 to 48 years and GIII more than 49 years.…”

Section: Discussionmentioning

confidence: 73%

Mandibular Canal Location and Cortical Bone Thickness in Males and Females of Different Age Groups: A Cone-beam Computed Tomography Study

El-Bahnasy

Youakim

Shamel

et al. 2021

Open Access Maced J Med Sci

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AIM: The purpose of the study was to measure and compare the prevalence of mandibular canal (MC) location variations in regard to mandibular first molars in both genders at different age groups. METHODS: A retrospective study was performed on 80 cone-beam computed tomography scans. Distance between MC and apical apices of first molars, buccal and lingual cortical plates was measured in both sides. RESULTS: 80 scans with 160 sides were analyzed. Distances was measured bilaterally for all scans with mean (5.22 ± 0.77) in men versus (4.1 ± 0.7) in women at group age 31–40 apical to apices of first molars. The mean was (3.77 ± 0.62) in men versus (2.81 ± 0.47) in women at same age group at buccal side, lingually the mean was (4.02 ± 0.67) in men versus (3.67 ± 0.26) in women in the same age group. CONCLUSION: Our study showed that there were decrease in measurements in older age group in both genders and in female groups more than male groups but with no statistical significant difference.

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“…Previous studies that used CBCT reconstructions employed different anatomical structures as the points of measurement, including bone margins, 15 the mental foramen, 16 or the root apices. 6 7 17 18 19 20 21 22 23 24 25 26 27 28 29 The relationship between the root apices and the bone margin or mental foramen is important for surgery, endodontic microsurgery, and implant procedures. Knowledge of the relationship between the root apices and the MC is important for endodontic treatments.…”

Section: Discussionmentioning

confidence: 99%

“…Knowledge of the relationship between the root apices and the MC is important for endodontic treatments. When the root apices were used as a reference point, some studies reported the position of the MC in millimetres, 6 7 17 18 19 20 21 23 24 26 27 28 29 while another described the contact or lack of contact between the MC and the root tips 25 and yet others described the position of the MC relative to the roots (i.e., lingual; buccal; interradicular; lingual and interradicular; apical/inferior/in-line with the apex/middle; lingual and inferior; buccal and inferior; or interradicular and inferior). 22 Studies that used root apices as the reference points and made measurements in millimetres used different definitions of the reference point on the MC.…”

Section: Discussionmentioning

confidence: 99%

The influence of age, sex, and tooth type on the anatomical relationship between tooth roots and the mandibular canal

Puciło

Safranow

et al. 2021

Imaging Sci Dent

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Purpose Cone-beam computed tomography (CBCT) reconstructions were analysed to elucidate factors affecting the anatomical relationship between tooth roots and the mandibular canal(MC). Materials and Methods Images of 300 volumetric tomography scans of patients aged between 20 and 79 years old (167 women and 133 men) were analysed. The mean distances between 2,053 dental root apices and the internal border of the MC were obtained by measuring the horizontal and vertical distances on coronal CBCT images. The actual distance was then calculated mathematically with the Pythagorean formula. The statistical significance of differences between men and women was assessed using the Mann-Whitney test. Correlations with patient age were evaluated with the Spearman rank correlation coefficient. Results The mean distances ranged from 2.17 mm, for single right third molar roots in women, to 8.02 mm for single left third molar mesiolingual roots in men. The mean distances measured for the mandibular right second molar mesial roots and the right second premolar roots were larger in men than in women. Age showed a significant positive correlation with the measured distances for mesial and distal roots of the first and second molar on both sides and the right third molar, mesiolingual roots of the left third molar, and single roots of the right third molar. Conclusion The root-to-mandibular canal distance depended on age and the type of tooth. In 2 root types, this distance was impacted by sex.

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Inferior alveolar nerve canal position in relation to mandibular molars: A cone-beam computed tomography study

Cited by 7 publications

References 22 publications

Incidental Findings in Cone Beam Computed Tomography for Dental Implants in 1002 Patients

Incidental Findings in Cone Beam Computed Tomography for Dental Implants in 1002 Patients

Mandibular Canal Location and Cortical Bone Thickness in Males and Females of Different Age Groups: A Cone-beam Computed Tomography Study

The influence of age, sex, and tooth type on the anatomical relationship between tooth roots and the mandibular canal

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