September 2007

Volume 24, Issue 3

Prevalence of dental developmental anomalies: a radiographic study.

Authors: H. Ahmadi M.H. Sheikhha F. Ezoddini Ardakani


Objectives: To determine the prevalence of developmental dental anomalies in patients attending the Dental Faculty of Medical University of Yazd, Iran and the gender differences of these anomalies. Design A retrospective study based on the panoramic radiographs of 480 patients. Patients referred for panoramic radiographs were clinically examined, a detailed family history of any dental anomalies in their first and second degree relatives was obtained and finally their radiographs were studied in detail for the presence of dental anomalies. Results 40.8% of the patients had dental anomalies. The more common anomalies were dilaceration (15%), impacted teeth (8.3%) and taurodontism (7.5%) and supernumerary teeth (3.5%). Macrodontia and fusion were detected in a few radiographs (0.2%). 49.1% of male patients had dental anomalies compared to 33.8% of females. Dilaceration, taurodontism and supernumerary teeth were found to be more prevalent in men than women, whereas impacted teeth, microdontia and gemination were more frequent in women. Family history of dental anomalies was positive in 34% of the cases.. Taurodontism, gemination, dens in dente and talon cusp were specifically limited to the patients under 20 year’s old, while the prevalence of other anomalies was almost the same in all groups. Conclusion Dilaceration, impaction and taurodontism were relatively common in the studied populaton. A family history of dental anomalies was positive in a third of cases. Key words: Developmental dental anomalies, family history, panoramic radiography, prevalence.

£10 single article

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The positive and negative impacts, and dangers of the Impact Factor 130-134 £10 single article
The prescription and outcomes of fissure sealants applied to a group of high caries risk children by general dental practitioners working in the North West of England 135-139 £10 single article
Prevalence of dental developmental anomalies: a radiographic study. 140-144 £10 single article
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Cross-cultural adaptation of the Oral Health Impact Profile (OHIP) for the Malaysian adult population. 166-175 £10 single article
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Provision of dental services in a dedicated clinic for HIV infected people in Greece 181-185 £10 single article
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