Radiographic examination of mesiodens and their associated complications

Asaumi, Jun Ichi; Shibata, Yoshihiro; Yanagi, Yoshinobu; Hisatomi, Miki; Matsuzaki, Hidenori; Konouchi, Hironobu; Kishi, Kanji

doi:10.1259/dmfr/68039278

Cited by 119 publications

(144 citation statements)

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“…The shape of mesiodens may vary from a simple conical form to a larger, more complicated crown shape with a number of tubercles (3)(4)(5)(6)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). Conical mesiodens is more common, and is more likely to erupt between the central incisors as a diminutive but fully developed tooth (3-7).…”

Section: Discussionmentioning

confidence: 99%

“…The reason for this difference might be that the present series included children aged between 4 and 14 years. Asaumi et al (10) reported 51 cases of mesiodens in patients over 20 years of age; 19 (37%) had dentigerous cyst formation, and only 3 cysts were discovered in patients aged under 19 years. Primosch (16) reported an enlarged follicular sac in 30% of cases, but histological evidence of cyst formation was available in only 4-9%.…”

Section: Discussionmentioning

confidence: 99%

“…Primosch (16) reported an enlarged follicular sac in 30% of cases, but histological evidence of cyst formation was available in only 4-9%. This indicates that when mesiodentes have been impacted for a long period, they have a high risk of forming dentigerous cysts (10).…”

Section: Discussionmentioning

confidence: 99%

“…However, in the clinical management of mesiodens, very often there can be confusion about whether and when they should be surgically removed, or whether they should be retained and followed up radiologically. Irrespective of whether an immediate or delayed surgical approach is adopted, early diagnosis is critical (3)(4)(5)(6)(7)10,15,16). Immediate surgical removal is indicated after diagnosis of mesiodens because intra-or postoperative complications are less likely to ocur in younger patients (3).…”

Section: Discussionmentioning

confidence: 99%

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Mesiodens: a radiographic study in children

et al. 2008

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The presence of an unerupted supernumerary tooth, or tooth bud between the 2 central incisors or as unilateral or bilateral teeth in the midline of the maxilla was noted as mesiodens on radiographs. Eighty-five cases of mesiodens in 69 patients were found. Complete documentation, including radiographs, for these 69 patients were studied and analyzed. In addition to gender and age, the following information about the mesiodens was recorded: 1) number; 2) shape; 3) position; 4) complications caused by the mesiodens; 5) treatment. Of the 69 patients, the ratio of boys (47 cases) to girls (22 cases) was 2.1:1. Fifty-three (76.8%) of the children had 1 mesiodens, and 16 (23.1%) had 2 mesiodentes bilaterally to the midline. Of the 85 mesiodentes, 67 (78.8%) were fully impacted, 6 (7%) were partially erupted, and 12 (14.1%) were fully erupted. Most of the mesiodentes (55.2%) were found in the vertical position, followed by inverted position (37.6%), and horizontal position (7%). The main complications were delayed eruption of the permanent incisors (38.8%), maxillary midline diastema (17.6%), axial rotation or inclination of erupted permanent incisors (16.4%), and resorption of the adjacent teeth (4.7%) The prevelance of mesiodens has been estimated to be 0.15% to 2

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Mesiodens: a radiographic study in children

et al. 2008

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“…They might cause clinical complications like retention of the primary teeth, delayed/failure of eruption of permanent teeth, ectopic eruption, rotation of adjacent teeth, root resorption, abnormal diastema, formation of dentigerous and primodial cysts, hence requiring surgical or orthodontic intervention. 1,[4][5][6][7][8] This study was conducted to determine radiographic features and management of mesiodens in the Department of Pediatric Dentistry at Kantipur Dental college and hospital.…”

Section: Introductionmentioning

confidence: 99%

Mesiodens: A Hospital Based Study

Limbu

Dikshit

Gupta

2017

J Nepal Health Res Council

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Background: A mesiodens, is the most frequent supernumerary tooth present in the maxillary central incisor region. This study is conducted to know the radiographic characteristics and management of mesiodens in children visiting hospital. Methods:A cross-sectional retrospective data collection was done from hospital dental records of children who visited the institution from December 2015-December 2016. Radiographic characteristic of mesiodens including the number, shape, position, direction of crown and complication caused by mesiodens were recorded. Data were analyzed using IBM SPSS v.20.0. Results:Out of 1871 dental records, it was found that 40 children had 53 mesiodens, with male female ratio of 3:1 and most of them were discovered at 8 years. Majority of mesiodens, 54.7% were erupted, conical, palatally placed with 77.3% vertically directed crown.Complications associated with it were crowding followed by diastema and delayed eruption. Among 40 children, one had three mesiodens, eleven had two mesiodens and rest had one each. Radiographically fully formed tooth was seen in 29 mesiodens. Immature apex was seen in 38 central incisors associated with mesiodens. Management undertaken was simple/surgical extraction and only few cases were kept for periodic observation. Conclusions:Periodic radiographs act as an important tool for clinicians in detecting and managing mesiodens.

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Performance of a deep learning system for simultaneously diagnosing radiolucent and radiopaque lesions in the anterior maxilla on panoramic radiographs

Ebata,

Kise,

Morotomi

et al. 2024

Oral Science International

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AimTo validate the performance of a deep learning system with detection and classification functions for a mix of radiolucent and radiopaque lesions in the anterior maxilla on panoramic radiographs.MethodsPatients with radiolucent or radiopaque lesions in the anterior maxilla on panoramic radiographs were selected retroactively from May 2022 until Feb 2002 to obtain 100 preoperative radiographs each for nasopalatine duct cysts (NDCs), radicular cysts (RCs), and impacted supernumerary teeth (ISTs). An additional 100 patients with no lesions in the anterior maxilla were selected. Two deep learning systems (Systems 1 and 2) were created and tested. For System 1, the models were created and tested using datasets of radiolucent lesions (NDCs and RCs) and No lesions. For developing System 2, the data of radiopaque lesions (ISTs) were added to those used in System 1. The neural network used was You Only Look Once ver. 7 (YOLOv7). The recall, precision, F1 score, and accuracy calculated from the confusion matrix were used to evaluate diagnostic performance.ResultsThe performance of System 2, which included the IST data, was worse than that of System 1. Even when NDCs and RCs were addressed as a joint category of radiolucent lesions, the addition of IST data resulted in a worse performance than that of System 1.ConclusionOur results indicate that combined use of radiopaque lesions (ISTs) with radiolucent lesions (NDCs and RCs) reduces the deep learning performance for radiolucent lesions with the volume of data used in the present study.

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Radiographic examination of mesiodens and their associated complications

Abstract: Although mesiodentes are not caused by malocclusion, they may cause it. A long period of impaction of mesiodentes may bring about dentigerous cyst formation or movement of the mesiodentes.

Cited by 119 publications

References 5 publications

Mesiodens: a radiographic study in children

Mesiodens: a radiographic study in children

Mesiodens: A Hospital Based Study

Performance of a deep learning system for simultaneously diagnosing radiolucent and radiopaque lesions in the anterior maxilla on panoramic radiographs

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