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Article
Effect of Some Medicines on Caries of Deciduous Teeth

Authors: Manar M. Mahmoud --- Saher S. Gasgoos
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2017 Volume: 4 Issue: 2 Pages: 52-61
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background Dental caries in addition known as tooth decay is a breakdown of teeth due to actions of bacteria. The cavities may be a number of dissimilar colors from yellow to black. Symptoms may contain pain and diffculty with eating. Aims To determine the direct effect of the oral medicines which were used for long time by children on the teeth. To reduce the negative effect of these drugs. Material and Methodsthe study used medications that are prescribed for children for long time that administrated only orally to determine the direct effect of these drugs. The study sample included lower deciduous molars, which were obtained from children who required extraction of their mobile molars after taking the agreement of parents. Sample size was (50) freshly extracted, caries-free lower molar of patients aged 10-12 years old. Teeth were divided into fve groups with 10 samples in each group, natural saliva was collected from a number of children and was added to the solution to simulate the oral cavity. The incubation period was 32 days then sectioning the samples and measure the lesion depth by polarized microscope. Results Verapamil produced maximum lesion depth in enamel while Dexamethasone was associated with minimum lesion depth. Conclusion it is obvious that all test medications affect the enamel of tooth by different degree.

Keywords

deciduous teeth --- enamel --- caries --- medications


Article
Time and order of eruption of primary teeth for children in Mosul City, Iraq

Authors: Tarik Y KHAMRCO --- Aisha A QASIM
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2002 Volume: 2 Issue: 3 Pages: 327-340
Publisher: Mosul University جامعة الموصل

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Abstract

The aims of the study were to determine the time and sequence of eruption of primary teeth. Also, to determine the differences in timing of tooth emergence according to side, jaw and gentler variation.Tinning and sequence of cruption were studied cross-sectionally in a group of (1843) children from Mosul City, Iraq:(940) were males and(903) were females aged between (2-37)months. The data were statistically analysed by using Karber's analysis in order to compute the mean and standard deviation of emergence.The results showed that there are no significant differences between the mean time of corresponding right and left teeth in both genders. The findings of the study indicated that the males have their primary teeth to emerge earlier than those of females. The differences between the two genders are clearly seen in the eruption of maxillary lateral incisor and maxillary first molar. The males acquired all their primary teeth to emerge in shorter time span than the females (difference 2.04 months).The results demonstrated that the maxillary teeth emerge before their mandibular opposing teeth in males with the exception of central incisor. However, in females, the mandibular teeth emerge before their maxillary opposing teeth with the exception of the canine and second molar.A specific sequence of primary teeth emergence was found in both arches and for both genders. In general, the emergence of primary teeth started with the emergence of mandibular central incisor and ended with mandibular second molar.

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