Evaluation of Prevalence and Positions of Mesiodens Using Cone-Beam Computed Tomography

Abstract

ObjectivesThe aim of this retrospective study is to investigate the prevalence, three-dimensional positions and supplementary findings of the presence of a mesiodens by using cone-beam computed tomography. Material and MethodsA total of 5000 cone-beam computed tomography (CBCT) scans, taken between December 2015 and March 2018, from the archive of Istanbul University Faculty of Dentistry Department of Oral and Maxillofacial Radiology, were screened. In sum, 2003 CBCT scans fulfilled inclusion criteria in this study. In addition to number of mesiodens, age and sex of the patients, shape, eruption status and direction, findings of the presence of a mesiodens were also recorded. Mesiodentes were classified according to their positions in frontal, sagittal and axial planes.ResultsIn this study, the prevalence of mesiodens was found 5.04% and to be more frequent in males than in females with the ratio of 1.9 : 1. One hundred thirty maxillary mesiodentes were detected in 101 cases out of 2003 CBCT scans. In 77 cases (76.2%), single mesiodens; in 19 cases (18.8%), two mesiodentes; and in 5 cases (4.9%), three mesiodentes were found. According to our classification, mesiodentes were mostly found in between midlines of central incisors (both the crown and root of mesiodens) in frontal plane, impacted and in contact with central incisors in sagittal plane, anterior to nasopalatine canal and in contact with nasopalatine canal in axial plane.ConclusionsCone-beam computed tomography provides more detailed information about position, neighbouring anatomic structures, and local findings of the presence of mesiodentes in multiplanar sections.

Prevalence and presentation of hyperdontia in a non-syndromic, mixed Nigerian population

“…In this light, our prevalence of 1.74% which has been deduced from the OPG analysis of a mixed population, cuts across the various ethnicities in the region; thus, presenting an occurrence rate that may better characterize the frequency of the dental anomaly and allow for extrapolations to Nigerians and sub-Saharan Africans regardless of their ethno-cultural background. Regarding the sex preponderance of hyperdontia, our study reports an equal prevalence of 0.87 in both males and females which is in contrast with the observations of Mahabob et al (28) and Goksel et al (29) in South India and Turkey respectively despite the similarity in the male to female ratio of the total subjects in all three studies.…”

A rare case of a supernumerary tooth (mesiodens) in an Iron Age (2470 ± 35 bp) skeleton from Koziegłowy (Poland)

“…The features of the presented mesiodens, such as impaction, position, conical shape and complications, can be associated with population studies available in the literature (e.g., Goksel et al, 2018).…”

“…The curvature of the apical part of the root is about 151 degrees. According to Goksel et al (2018), this mesiodens can be classified as type B IV c.…”

“…lows: lamp voltage: 90 kVp; current: 4 mA; slice thickness: 0.23 mm; voxel size: 0.23 × 0.23 × 0.23 mm; field-of-view 679 × 679 × 343 voxels, 156.2 × 156.2 × 78.9 mm; acquisition time: 104.7 s.The mesiodens was assessed according to its radiological features: anatomic location, effects on surrounding tissues (relation to the teeth, the bottom of the nasal cavity and the nasopalatine canal), size and shape. The position of the mesiodens was evaluated usingGoksel, Agirgol, Karabas, and Ozcan's (2018) classification, according to which assessment was performed in the frontal plane (type A, no inclination of long axis; type B, crown in the midline, root distally; type C, crown distally, root in the midline), sagittal plane (type I, fully erupted mesiodens; type II, partially erupted; type III, impacted between the crest of the alveolar bone and the root apex; type IV, impacted above the upper incisors' root apices; type V, in contact with compact bone of the nasal cavity floor; type VI, in contact with the nasal septum), axial plane (type a, labially positioned; type b, in line with the dental arches; type c, anteriorly and in contact with the nasopalatine canal; type d, posteriorly and in contact with the nasopalatine canal; type e, posteriorly and not in contact with the nasopalatine canal). 4 | RESULTS A total of 28 teeth are present in the surviving dentition.…”

Intervenção cirúrgica de mesiodens na dentição mista e impacto na qualidade de vida: relato de caso / Surgical intervention of mesiodens in mixed dentition and impact on quality of life: case report

“…A porcentagem na dentição decídua varia de 0,2 a 0,8, sendo maior na dentição permanente entre 0,5 e 5,3% e 0,9% na dentição mista. Possui duas vezes mais predileção pelo gênero masculino quando comparado ao gênero feminino (GOKSEL et al,2018;ZHAO et al, 2020 No exame radiográfico além da presença do mesiodens, foi possível identificar a presença outro dente supranumerário, com posicionamento invertido em maxila, localizado no palato duro, próximo ao ápice da raiz do dente 11 (Figura 3).…”