Mandibular incisive canal-related prevalence, morphometric parameters, and implant placement implications: a multicenter study of 847 CBCT scans

Da, Barbosa; Lm, Kurita; Av, Pimenta; Rc, Teixeira; Pg, Silva; Tr, Ribeiro; Melo, Daniela Pita de; Fw, Costa

doi:10.4317/medoral.23350

Cited by 12 publications

(20 citation statements)

References 19 publications

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“…Detailed preoperative study of anatomical structures with cone-beam computed tomography is crucial for the success of the procedure and to reduce the number of postoperative complications after procedures in the area of the synphysis. Several studies have shown that, due to its excellent anatomical resolution, this test is the best method for obtaining incisor canal and for preoperative measurements, due to its reproducibility and high degree of reliability, results similar to anatomical studies in dry skull have been obtained [16], [17].…”

Section: Introductionmentioning

confidence: 80%

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Morphometric Analysis of The Mandibular Incisive Canal in Different Facial Patterns

Filho

Barreto

Oliveira

2020

EJDENT

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The study evaluated the morphometry of the mandibular incisive canal correlating with the different patterns of facial growth. The sample consisted of 90 cone beam computed tomography scans, divided into 3 groups: brachyfacial (n=30), mesofacial (n=30) and dolicofacial (n=30). For the determination of these groups, the acquisitions were arranged in the Dolphin 3D software to perform the Ricketts 3D cephalometric tracing and the VERT index. Next, the images were worked on the Ondemand3d software to perform the morphometric analysis of the incisive canal. For data analysis, the Kruskal-Wallis and Mann Whitney test were performed to test the interference of facial patterns, sex and age in the Mandibular Incisive Canal Extension. In the intragroup analysis of the MICE, the Friedman test was used, considering a 95% confidence interval and a significance level of 5%. The sample consisted of 54.4% of males and 45.6% of females. Sex and age had no effect on morphology and incisive canal extension. When the relationship between facial patterns and MICE was observed, brachyfacials (11.09 mm) presented a larger extent (p<0.001) than dolicofacial (4.10 mm) and mesofacial (5.55 mm). When the morphology of the MIC was analyzed, most individuals presented the linear horizontal format, and there was no direction between the groups. Thus, we can conclude that the facial pattern influences the MICE and sex, age and morphology were not influenced by the facial pattern.

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Section: Introductionmentioning

confidence: 80%

“…All images were processed and worked on on Demand3d® (Cybermed, Seoul, Republic of Korea). These procedures were performed according to the protocol described above by Barbosa et al 2020 [17] as shown in Fig. 1.…”

Section: Mic Extension Analysismentioning

confidence: 99%

Morphometric Analysis of The Mandibular Incisive Canal in Different Facial Patterns

Filho

Barreto

Oliveira

2020

EJDENT

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“…In clinical practice, the most commonly used radiological technique for morphological assessment of the MIC is cone-beam computed tomography (CBCT) [ 3 , 4 , 5 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ] ( Figure 1 ).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have investigated the presence, size, and position of the MIC on CBCT images [ 1 , 2 , 3 , 4 , 5 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. However, to our knowledge, no CBCT study has evaluated the presence, size, and distance of the MIC from adjacent anatomical landmarks, and the observer variability of MIC measurements, in the dentate mandibles of Caucasian (Italian) patients.…”

Section: Introductionmentioning

confidence: 99%

Detection Rate and Variability in Measurement of Mandibular Incisive Canal on Cone-Beam Computed Tomography: A Study of 220 Dentate Hemi-Mandibles from Italy

et al. 2022

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The mandibular incisive canal (MIC) is a small bony channel located in the interforaminal region; it represents the anterior continuation of the mandibular canal. Cone-beam computed tomography (CBCT) is the most commonly utilized radiological technique for assessing the MIC. The main purpose of this study was to evaluate the detectability and variability in measurements of the MIC on CBCT. A total of 220 dentate hemi-mandibles were retrospectively selected for this study. For each hemi-mandible, the detectability, diameter, and distance of the MIC from anatomical landmarks (cortical plates and tooth apices) were evaluated in consensus by two observers. The analysis was performed at four different levels (first premolar, canine, lateral incisor, and central incisor) and was repeated after one month. The variability of MIC measurements was expressed as the coefficient of repeatability (CR), obtained from the Bland–Altman analysis. The MIC detection rate reduced from the first premolar to the central incisor (from 82.3% to 0.5%). The CR of MIC measurements (diameter and distances from anatomical landmarks) was ≤0.74 mm. Although the MIC is difficult to detect in a non-negligible percentage of cases, the limited variability in measurements confirms that CBCT is an effective technique for the assessment of the MIC.

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“…It enters the mandible through the mandibular foramen and travels to the mental foramen and may make a loop by running upward and backward before creating the mental foramen [ 5 ]. With regard to the mandibular canal, several investigations have noted that an extension of the mandibular canal called the mandibular incisive canal may locate mesial to the mental foramen, which can be in danger during implant insertion as well [ 6 – 8 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Mandibular Angulation on Preoperative Assessment of Dental Implant Insertion at Premolar Region: CBCT Study

Mahmoudinezhad

AryanKia

Shooshtari

et al. 2022

BioMed Research International

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Backgrounds. This study investigated the effect of mandibular angulation on the perioperative evaluation of the implant placement at the premolar region on panoramic reconstructed images using cone beam computed tomography (CBCT). Methods. A total of six dried anonymous human mandibles was included. Two implants were inserted in the left and right first premolar region. CBCT scans were obtained from each mandible at the standard position, +20° extension, and -20° flexion. The distance of the implant from the anterior loop of the inferior alveolar nerve and mental foramen was measured. Mean absolute error (MAE) of the distance of the implant from both anatomical landmarks was measured. The Wilcoxon matched-pair signed-rank test was used for the comparison of the measurements. All data were analyzed with the Stata program (version 15.1). Results. No statistically significant differences were found between the distance of the implant from the mental foramen and the anterior loop of the inferior alveolar nerve up to 20° extension and flexion at both sides of the mandible. (All p > 0.1 ) However, a variable range of MAE (SD) in the distance of the implant from different anatomical landmarks was found ( 0.9 ± 0.7 to 3.3 ± 2.1 ). Conclusions. We found no statistical difference in measurements of the distance of the implant from two anatomical landmarks at different head positions up to 20° extension and flexion. However, clinically, variable range in the distance of the implant from anatomical landmarks should be considered. Our findings could alert dentists of the possibility of error up to 20° extension and flexion on the perioperative evaluation of dental implant placement.

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Mandibular incisive canal-related prevalence, morphometric parameters, and implant placement implications: a multicenter study of 847 CBCT scans

Cited by 12 publications

References 19 publications

Morphometric Analysis of The Mandibular Incisive Canal in Different Facial Patterns

Morphometric Analysis of The Mandibular Incisive Canal in Different Facial Patterns

Detection Rate and Variability in Measurement of Mandibular Incisive Canal on Cone-Beam Computed Tomography: A Study of 220 Dentate Hemi-Mandibles from Italy

The Effect of Mandibular Angulation on Preoperative Assessment of Dental Implant Insertion at Premolar Region: CBCT Study

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