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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.


Article
Dental caries changes between(1989) and(2001) in children aged(3-14) years in KasaFakhra and Al-Shamsiat villages,Ninevah Governorate, Iraq

Authors: Tarik Y KHAMRCO --- Layla A MAKANI --- Karam H JAZRAWI
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2002 Volume: 2 Issue: 3 Pages: 269-278
Publisher: Mosul University جامعة الموصل

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Abstract

This study was designed to assess the trend of dental caries among children aged(3-14) years in KasaFakhira and Al-Shamsiat rural areas and compare the results with those obtained from the first study that conducted (12) years ago.The study comprised(255) chili aged(3-14) years, 117 (45.88%) males and 138 (54.12%) females.The sample was divided into four age groups (3-5),(6-8),(9-11) and (12-14) years. The numbers of children for each group were (31,62, 92 and 70) respectively. Clinical examination was carried out in the village school in good natural daylight using plane mouth mirror and sickle-shaped caries explorer. The index used was based on the WHO criteria and examination was done for both primary and permanent teeth.The results indicated that the mean DMFT for children aged (6-12) years regarding the total sample was (1.55), whereas the previous study recorded (3.06). The general mean for boys in this study (1.54) was nearly similar to the girls (1.56), while the boys in the previous study recorded a lower meanthan girls (2.44) and (3.52), respectively.Through the results, it could be noted that the mean dmft for primary teeth was (1.96) regarding the age group (3-5) years, increased with increase age to (2.43) for the age group (6-8) years,and decreased due to normal shedding of primary teeth and eruption of permanent teeth to (1.27) and (0.59) regarding age groups (9-11) and (12-14) years, respectively. All these means were lower than those in the previous study which were (3.7), (4.5), (2.6) and (0.9) respectively. The boys recorded lower mean of dental caries than girls (1.35) and (1.85) respectively. The results,therefore,confirmed that the trend of dental caries for this young age group was decreased gradually throughout this period (1989-2001) due to the sharp decrease in the quantity of sugar consumed in the previous years because of the unfair embargo on Iraq. This lowered percentage of dental caries could be maintained so and further decreased in the future.

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