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Objective: The aim of this research was to determine the prevalence, distribution and association of developmentalalteration in tooth number with gender, location, and presence of delayed eruption of tooth among children whoattended to Student’s polyclinic of IIUM Kuantan, Malaysia. Methods: A cross sectional study on total 727Orthopanthomograms (OPGs) of 3-17 years old children from April 2009 to July 2012. OPGs with presence ofalteration number were scrutinized to find out the prevalence, distribution and association. The data was analyzedcomparing gender, location and presence of delayed eruption and tested using Chi-square test. Results: Out of 727OPGs, 71 OPGs showed developmental alteration in tooth number. The prevalence was 98/1000 OPGs within 3 years.Among those 71 OPGs, the gender differences were: males (49.3%) and females (50.7%). Locations were found inmaxilla (45.1%), mandible (40.8%) and both (14.0%). The finding of delayed eruption was (7.0%). There weresignificant differences between alteration in tooth number with location as (p < 0.05) while there were no significantdifferences with gender and delayed eruption as (p > 0.05). Conclusions: This study showed that hyperdontia wasconsiderably lower than hypodontia. There was association between alteration in tooth number with location, but noassociation with gender and delayed eruption. |
