Bilateral macrodontia of mandibular second premolars: a case report

Dugmore, C

doi:10.1046/j.1365-263x.2001.00215.x

Cited by 26 publications

(27 citation statements)

References 12 publications

(48 reference statements)

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“…This is in agreement with the finding of 0.2% from Sweden (13). Macrodontia of a single tooth is rare (20). Enamel hypoplasia was the most prevalent dental anomaly in this study at 2.8%, which is higher than the figure of 1.5% reported in Japanese children (2), but lower than 3.5% found among Brazilians (21).…”

Section: Discussionsupporting

confidence: 92%

Prevalence of oro-dental anomalies among schoolchildren in Sana'a city, Yemen

BaSalamah¹,

Baroudi²

2016

East Mediterr Health J

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Practitioners and policy-makers need information about the relative frequency of dental anomalies among children in their region. This study investigated the prevalence of different oral anomalies among schoolchildren in Sana'a city, Yemen. A sample of 1000 private and public schoolchildren aged 4-12 years were examined by the same examiner using disposable tongue blades. The total prevalence of oral anomalies was 15.1%, most commonly in boys (male:female ratio 3.2:1) aged 7-12 years. The most prevalent dental anomaly related to hard tissues was tooth hypoplasia (2.8%), followed by hypocalcification (2.6%), then microdontia (0.5%), macrodontia (0.4%), hypodontia (0.4%), supernumerary teeth (0.3%), tooth transposition (0.3%), dental fusion (0.2%) and gemination (0.2%). The most prevalent soft tissues anomaly was fissured tongue (4.0%), followed by ankyloglossia (1.8%), geographic tongue (0.9%), macroglossia (0.4%) and hairy tongue (0.3%). Appropriate measures need to be taken early to mitigate the negative impact and later costs of treatment of anomalies. RÉSUMÉ Les praticiens et les décideurs politiques ont besoin d'informations sur la fréquence relative des anomalies dentaires chez les enfants de leur région. La présente étude a évalué la prévalence de différentes anomalies bucco-dentaires chez des écoliers de la ville de Sanaa (Yémen). Dans un échantillon, 1000 enfants âgés de quatre à douze ans fréquentant des écoles publiques et privées ont été examinés par le même praticien à l'aide d'abaisse-langue à usage unique. La prévalence totale des anomalies bucco-dentaires était de 15,1 %, le plus souvent chez les garçons (rapport garçon : fille 3,2 : 1) âgés de sept à douze ans. L'anomalie dentaire la plus répandue liée aux tissus durs était l'hypoplasie dentaire (2,8 %), suivie de l'hypocalcification (2,6 %), puis de la microdontie (0,5 %), la macrodontie (0,4 %), l'hypodontie (0,4 %), les dents surnuméraires (0,3 %), la transposition dentaire (0,3 %), la fusion dentaire (0,2 %) et la gémination dentaire (0,2 %). Les anomalies des tissus mous les plus prévalentes étaient une langue fissurée (4,0 %), suivies d'une ankyloglossie (1,8 %), d'une langue géographique (0,9 %), d'une macroglossie (0,4 %) et d'une langue pileuse (0,3 %). Il est nécessaire de prendre des mesures précoces appropriées pour limiter l'impact négatif puis le coût ultérieur du traitement de ces anomalies. ‫باليمن‬ ‫صنعاء‬ ‫مدينة‬ ‫املتوسط‬ ‫لرشق‬ ‫الصحية‬ ‫املجلة‬ ‫العرشون‬ ‫و‬ ‫الثاين‬ ‫املجلد‬ ‫األول‬ ‫العدد‬ 35

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Section: Discussionsupporting

confidence: 92%

Prevalence of oro-dental anomalies among schoolchildren in Sana'a city, Yemen

BaSalamah¹,

Baroudi²

2016

East Mediterr Health J

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“…These signaling molecules affect both epithelial and mesenchymal cells and also their reciprocal interactions. [11][12][13][14] The mode of evolutionary modification in molarization of premolar is because of the overlapping expression of these signaling molecules and transcription domains in enamel knot (as seen in seals and ungulates). [15] The literature suggests that all six Dlx genes exhibit complex expression patterns in the developing teeth during the formation of transient structures within the enamel organ known as the enamel knot, enamel cord, and enamel navel in the cap stage, suggesting its role in tooth morphogenesis.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, Thomas and Sharpe stated that the patterning of dentition is also under the control of Dlx-1 and Dlx-2 genes which are specifically involved in patterning of molar tooth development, so any aberrancy in expression of this group of genes is also responsible for cuspal and morphological defects. [11][12][13][14][15] DD, a rare anomaly of unknown etiology, is classified into two types, radicular DD as Type I and coronal DD as Type II. In Type I, both the deciduous and permanent dentitions are affected.…”

Section: Discussionmentioning

confidence: 99%

Molarization of premolar with dentin dysplasia Type Ia - A rare unilateral entity

Mathur¹,

Thukral²,

Desai³

et al. 2018

JMRPS

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Human dentition exhibits variations in anatomic features. When the size and morphology of teeth are analyzed, a range exists within which a particular tooth should be probably placed, but some teeth show variance from this range. Mandibular premolars (MnP) are among such teeth. This paper presents a rare case of unilateral megadontia with dentin dysplasia, showing the presence of molariform appearance of second MnP which appeared radiographically as rootless tooth with deformative pulpal morphology. Clinically, the patient suffered from temporomandibular joint disorder which may be because of the occlusal instability caused by the lingually placed molarized premolar and so appropriate preventive therapy was recommended.

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“…Macrodontia is usually associated with systemic disturbances or syndromes such as insulin-resistant diabetes,2 otodental syndrome,3,4 facial hemihyperplasia,5,6 KBG syndrome,7 Ekman-Westborg-Julin syndrome,8 and 47, XYY syndrome 9. Isolated form of macrodontia has been rarely reported 10–13. The prevalence of macrodont permanent teeth is 0.03–1.9%,14–16 with a higher frequency in males 15,16.…”

Section: Introductionmentioning

confidence: 99%

Isolated bilateral macrodontia of mandibular second premolars: A case report

Canoglu

Canoglu²,

Aktaş

et al. 2012

Eur J Dent

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Isolated bilateral macrodontia of mandibular second premolars is an extremely rare dental anomaly with only 5 cases reported to date. This case report presents clinical and radiographic findings of isolated bilateral macrodontia in a 12-year-old child. The patient was referred to the clinic with local crowding of mandibular posterior teeth. Radiographic findings revealed the presence of impacted macrodont mandibular second premolars and their distinct morphological appearance, characterized by large, multitubercular, molariform crowns, and tapering, single roots. Following surgical removal of the impacted premolars, orthodontic therapy was initiated to correct the malocclusion. Along with the features and treatment of this rare anomaly, this case report also illustrates the benefits, in terms of treatment planning and surgical technique, of supplementing conventional radiography with cone-beam computed tomography to localize the macrodont premolars and accurately establish their relationship with the neighboring roots and anatomic structures.

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Bilateral macrodontia of mandibular second premolars: a case report

Cited by 26 publications

References 12 publications

Prevalence of oro-dental anomalies among schoolchildren in Sana'a city, Yemen

Prevalence of oro-dental anomalies among schoolchildren in Sana'a city, Yemen

Molarization of premolar with dentin dysplasia Type Ia - A rare unilateral entity

Isolated bilateral macrodontia of mandibular second premolars: A case report

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