Age-related changes in the location of the mandibular and mental foramen in children with Mongoloid skeletal pattern

Lim, Myeong-Seop; Lim, Wye-Keat; Rajan, Sadna; Nambiar, Phrabhakaran; Ngeow, Wei Cheong

doi:10.1007/s40368-015-0184-x

Cited by 16 publications

(18 citation statements)

References 39 publications

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“…The findings of this study were in accordance with the results of Lim et al' study which found mental foramen position changed during primary dentition and remained mostly stable during the eruption of the primary and mixed dentitions [20]. Our samples were above 18 years of age; therefore, the distance from mental foramen to midline and inferior border of mandible was constant between different ages.…”

Section: Discussionsupporting

confidence: 91%

CBCT Assessment of Mental Foramen Position Relative to Anatomical Landmarks

Sheikhi

Kheir

2016

International Journal of Dentistry

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Purpose. This study was carried out on an Iranian population aiming to investigate mental foramen position relative to inferior border of mandible and skeletal midline and its gender and age differences on CBCT projections. Materials and Methods. A number of 180 CBCT images of patients were analyzed in different planes (tangential, cross-sectional, and axial). The distances from the superior border of mental foramen to the inferior border of mandible and from the anterior border of mental foramen to the midline were calculated. Results. The mean distance from mental foramen to the inferior border of mandible in the right side was 13.26 mm (SD ± 2.34) and in the left side was 13.37 mm (SD ± 2.19). There was a statistically significant difference between genders in terms of the distance between mental foramen and inferior border of mandible (P value = 0.000). The mean distances from mental foramen to midline were 25.86 mm (SD ± 0.27) and 25.53 mm (SD ± 0.31) in the right and left sides, respectively. Conclusions. The vertical and horizontal positions of mental foramen can be determined from stable anatomical landmarks such as mandibular inferior border and skeletal midline in both dentulous and edentulous patients. The distance from the superior border of mental foramen to the inferior border of mandible exhibited sexual dimorphism.

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Section: Discussionsupporting

confidence: 91%

CBCT Assessment of Mental Foramen Position Relative to Anatomical Landmarks

Sheikhi

Kheir

2016

International Journal of Dentistry

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“…, which is similar to the study by Rashid et al 201111 , Samanta PP2013 13 andLinganna CS20158 .In our study the mandibular foramen shows a shift with age which is similar to the study byLim MY et al7 . The observation found in our study was a posterior shift because we studied adult population whereas in the study by Lim MY et al 20157 ,the population studied were children. When compared between genders the mean values superoinferiorly were higher in males than females which is similar to the study conducted by Shendakar AT etal, 201014 .…”

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confidence: 92%

Mandibular Foramen –The Peephole

Deepali P Mohite,

Prakash M Mohite,

Devendra Palve

et al. 2021

Indian Journal of Forensic Medicine & Toxicology

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Background: Forensic Odontology is a rapidly evolving branch of dentistry which deals with the identification of an individual. In instances of deceased individual, establishing identity may still pose difficulties depending upon the time that has elapsed since death. The oral structures can reliably be used for establishing identity of the deceased as they are preserved for long after death. The mandibular foramen is amongst the core structures & has been used for age estimation with reliable degree of accuracy using radiographs which is a non-invasive and easily reproducible technique. Hence we decided to assess its importance in establishing gender. Methods: Digital Orthopantomograph (OPG) were used for the study as they are taken for all dental procedures and can be preserved as records and may facilitate comparison of ante-mortem and post-mortem records. Various dimensions from the mandibular foramen were recorded. Conclusion: We found statistically significant correlation of Anteroposterior and Posteroanterior dimensions in position of mandibular foramen to gender.

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“…On average, the mandibular foramen was 3.1 ± 2.6 mm above the occlusal plane, which is consistent with our results. In the same way, in a population of children with Mongoloid skeletal pattern, Lim [18] described a higher percentage of MF located below the OP under 9 years, and above in older children. In line with our results, Paryab [17] confirmed this position of MF 3-4 mm above the mandibular plane in mixed dentition (from Hellman's stages IIA to IVA), whether the patients were retrognathic or not.…”

Section: Discussionmentioning

confidence: 73%

“…and the reference landmarks are sometimes difficult to identify clinically, especially in children [6,[11][12][13][14]. Previous attempts to determine the position of the MF relative to the occlusal plane have mainly been based on dry mandibles [7,15,16] or on 2D radiographs which were deformed (panoramic radiographs [6,[11][12][13][14][17][18][19]) and/or had a high level of anatomical superimposition (lateral cephalometric radiographs [20,21]). Nowadays, the development of 3D computer software combined with computed tomography (CT) allows indisputable data on the mandibular foramen location to be produced [10,[22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

The mandibular plane: a stable reference to localize the mandibular foramen, even during growth

et al. 2019

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Objectives The location of the mandibular foramen is essential for the quality of the inferior alveolar nerve block anaesthesia and has often been studied with contradictory results over the years. The aim of this study was to locate the mandibular foramen, according to the dental age of the subject, through 3D analysis. Methods Three-dimensional images were reconstructed from mandibular computed tomography of 260 children, adolescents and adults. The occlusal plane was determined as the average plane passing through the buccal cusps of mandibular molars, premolars, and canines, and through the incisor edge. The mandibular foramen was located three dimensionally in relation to the anterior edge of the ramus (or coronoid notch), the sagittal plane and the occlusal plane. Results All along mandibular growth, the three distances defining the relative position of the mandibular foramen showed negligible changes. The mandibular foramen is located from − 0.4 to 2.9 mm above the occlusal plane. The distance between the mandibular foramen and the leading edge of the mandibular ramus ranged from 17 to 19.5 mm. The angle between the ramus and the sagittal plane ranged from 3° to 5.4°. Conclusion In our sample, and using the occlusal plane and the anterior edge of the ramus as anatomical references, the location of the mandibular foramen was considered to be similar in all patients regardless of age.

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Age-related changes in the location of the mandibular and mental foramen in children with Mongoloid skeletal pattern

Abstract: With advancing age and growth, the position of MF remained constant at the ramus with tendency to move from below to at the level of occlusal plane, while mf moved distally and inferiorly.

Cited by 16 publications

References 39 publications

CBCT Assessment of Mental Foramen Position Relative to Anatomical Landmarks

CBCT Assessment of Mental Foramen Position Relative to Anatomical Landmarks

Mandibular Foramen –The Peephole

The mandibular plane: a stable reference to localize the mandibular foramen, even during growth

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