Morphological and Morphometric Study of the Mental Foramen on the M-CP-18 Jiachenjiang Point

Oliveira, Edilamar Menezes de; Araújo, Amanda Lopes da S.; Silva, Carlos Monteiro; Sousa‐Rodrigues, Célio Fernando de; Lima, Fernando José Camello de

doi:10.4067/s0717-95022009000100039

Cited by 31 publications

(22 citation statements)

References 16 publications

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“…In the present study, predominant shape observed is round both on right (94%) and left sides (87%) which is similar to study conducted by Al-Khateeb et al [13] However Oliveira Junior et al [14] reported round shape only in 26.2% and 28.7% of mandibles on right and left sides respectively and in rest of mandibles, oval shape was observed 73.8% on right side and 71.3% on left side.…”

Section: Shape Of Mfsupporting

confidence: 90%

Evaluation of position, shape, size and incidence of mental foramen and accessory mental foramen in Indian adult human skulls

Singh¹

2011

Anatomy

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Objectives: Analysis of morphometry and incidences of mental and accessory mental foramina are important for dental surgeons in nerve block and surgical procedures to avoid injury to neurovascular bundle. This study was carried out to present such data on mental and accessory mental foramina in Indian population. Methods:The study experimented with 100 dried adult human mandibles. Size and position were determined using digital vernier callipers. Incidences and shapes of mental and accessory mental foramina were also observed.Results: Bilateral mental foramina were presented in all one hundred mandibles. Accessory mental foramina were found in 8% on left side, 5% on right side and nil bilaterally. Mental foramina were predominantly rounded. Average diameters of mental and accessory mental foramina were measured as 2.68 mm and 1.00 mm, respectively. The percentages of locations of mental foramina below the apex of second premolar, between first and second premolars and between second premolar and first molar were found as 68.8, 17.8 and 11.5, respectively. Accessory mental foramina were located 0.67 mm lateral to mental foramen and below the apex of first molar tooth. Conclusion:This study may supplement very useful new data of variations in incidence, position, shape and size of mental and accessory mental foramina for Indian population which may help the surgeons, anaesthetists, neurosurgeons and dentists to help carrying out surgical procedures successfully.

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Section: Shape Of Mfsupporting

confidence: 90%

Evaluation of position, shape, size and incidence of mental foramen and accessory mental foramen in Indian adult human skulls

Singh¹

2011

Anatomy

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“…The numerical values in parentheses indicate ranges. reported in most previous studies [6,15]. However, Sankar [21] found that the round MF form was most common in an Indian population.…”

Section: Discussionmentioning

confidence: 88%

“…The same position was also observed to be most common in Saudi [28], Nigerian [29], Kenyan [17], Sri Lankan [6], and Kurdish [7] populations. However, other studies suggested that most MF were located between the first and second premolars [8,15,30]. Thus, the location of the MF appears to show racial differences [31].…”

Section: Discussionmentioning

confidence: 92%

“…H:V was used to classify the form of each MF into one of three types [15]: type I, oval horizontal form, H:V>1.24; type II, oval vertical form, H:V<0.76; and type III, round form, 0.76 ≤ H:V ≤ 1.24.…”

Section: Evaluation Of Cbct Imagesmentioning

confidence: 99%

“…If the difference between the two values was ≥0.2 mm, a third measurement was made. Mean values were then calculated [14][15][16].…”

Section: Evaluation Of Cbct Imagesmentioning

confidence: 99%

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Anatomic Relationship between Mental Foramen and Peripheral Structures Observed By Cone-Beam Computed Tomography

Zhang¹,

Zheng²

2015

Anat Physiol

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IntroductionThe mental foramen (MF) is a funnel-like opening located on the lateral aspect of the mandible. It is an important anatomical landmark through which the inferior alveolar nerve and vessel bundles pass. Once the nerve leaves the MF, it branches to innervate the anterior teeth and neighboring structures. The blood vessels supply the soft tissues of the lower jaw. Surgeons must establish the position of the MF accurately because any invasive procedure performed in this oral and maxillofacial region may damage the neurovascular bundles and cause serious sequelae, such as labiomandibular paresthesia or anesthesia [1,2]. Knowledge of the precise position of the MF would also facilitate a mental nerve block.Although root canal therapy is the primary method to treat endodontic diseases, its rate of success is less than 100% and some patients require periapical surgery [3,4]. Because the MF is located near the root apices of the mandibular premolars, periapical surgery performed in this region may damage the neurovascular bundles. Thus, it is important to explore the precise position of the MF and its relationship with peripheral structures. However, previous studies of the MF, which were performed on human cadavers [5,6] or using panoramic radiographs [7,8], had some shortcomings. Sample sizes were relatively small, and the superimposition of structures on radiographs made it difficult to identify the three-dimensional (3D) relationships between the MF and root apices.Recently, cone-beam computed tomography (CBCT) has been introduced to dental practice. It has shown several advantages, such as improved spatial resolution and reduced radiation dose. This technique has significantly improved the 3D imaging of osseous structures [9,10]. Due to these superiorities, CBCT has been utilized frequently in dental practice, such as for the diagnosis of endodontic diseases and the planning of periapical surgery and implant placement. A large CBCT database has thus accumulated, allowing the analysis of particular features in a large sample. CBCT also enables the visualization of 3D structures from different directions, and the ability to avoid superimposition allows the relationships between peripheral structures to be identified clearly. No significant difference in measurements of mandibular anatomy made with CBCT software or calipers has been found [11][12][13]. Hence, the exploration of the precise location of the MF could be facilitated by the use of CBCT images. The aim of this study was to investigate the position of the MF and its relationship to AbstractBackgroud: This study investigated the anatomic relationship between mental foramen and peripheral structures using cone-beam computed tomography. Methods:In total, 172 cone-beam computed tomography images were evaluated. Mental foramen number, size, and form were recorded, and their three-dimensional relationships with mandibular premolar root apices were investigated. The percentile position of each mental foramen relative to bony reference points was measure...

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Morphological variation in dentate and edentulous human mandibles

2010

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Morphological and Morphometric Study of the Mental Foramen on the M-CP-18 Jiachenjiang Point

Cited by 31 publications

References 16 publications

Evaluation of position, shape, size and incidence of mental foramen and accessory mental foramen in Indian adult human skulls

Evaluation of position, shape, size and incidence of mental foramen and accessory mental foramen in Indian adult human skulls

Anatomic Relationship between Mental Foramen and Peripheral Structures Observed By Cone-Beam Computed Tomography

Morphological variation in dentate and edentulous human mandibles

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