In our study, mesiodens was the most common primary supernumerary tooth. This agrees with the results of Nik-Hussein et al.[13] But contrasts with the other studieswho reported that maxillary lateral incisors were the most frequently occurring supernumeraries in primary dentition.[14,18,21] Hypodontia The prevalence of hypodontia in the primary dentition selleck kinase inhibitor ranges from 0.08 to 1.55% in various pediatric populations.[16,22] In our survey, Bengali children demonstrated a prevalence of 0.5%, which is lower than the results of Yonezu et al.,[17] who obtained 2.4% in Japanese children, but higher than the results of a Turkish study[23] (0.2%). In this investigation, children with hypodontia exhibited one or two teeth missing, and the maxillary lateral incisors were the most common missing teeth (85.
7%). These results support the observations of Whitington et al.,[16] Arte and others,[5] and Ravn et al.,[24] but disagree with the findings of Yonezu and others,[17] who reported that mandibular lateral incisors were the most frequently missing teeth. Double teeth Double teeth describe Inhibitors,Modulators,Libraries both germination and fusion.[7] These anomalies are more common in the primary dentition than in the permanent dentition. The prevalence of primary double teeth varies from 4.1% in Japan,[17] 0.5% in Croatia,[14] in 0.4% in Belgium,[19] and 0.6% in Finland,[15] to 1.3% in Turkish children.[23] Tasa et al. have reported a prevalence of 1.5% in a group of children Inhibitors,Modulators,Libraries from western India.[25] In our investigation, Bengali subjects demonstrate a prevalence of 0.4%, with no significant gender distribution.
Our results have shown that double teeth typically occur unilaterally (81.8%), are more common in the mandibular arch (91.9%), and all the cases involve anterior Inhibitors,Modulators,Libraries teeth. These observations support the findings of Yonezu et al.,[17] Cheng and others,[26] and J?rvinen et al.,[15] Inhibitors,Modulators,Libraries but disagree with the reports of Aguil�� and others,[27] who found statistically no significant difference between the maxilla and mandible. Talon cusp Talon cusps are uncommon dental anomalies affecting both primary and permanent dentitions. Its incidence is less common in the primary dentition, with three-fourth of all cases occurring in the permanent dentition.[10,11] To date, no prevalence study on primary talon cusp is available. The lack of precise criteria Inhibitors,Modulators,Libraries to classify an accessory cusp as a ��talon�� has contributed to extensive variations in its prevalence.
[28] Case reports on talon cusps in the primary dentition indicate that maxillary central incisors are more frequently affected than maxillary lateral incisors.[10,11] In the present study, talon cusps in the primary dentition have shown a prevalence of 0.07% (two patients) and the accessory cusps have occurred exclusively on the maxillary central incisor. Brefeldin_A Correlation with permanent dentition Anomalies in the primary dentition are positively correlated with anomalies in the permanent dentition.