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Article
Eruption Time Estimation of Permanent 1st Molar, Central &, Lateral Incisors in 5.5 - 10 Years Age Children at Al Ramadi City / Iraq

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Abstract

The Parents consider tooth eruption as an important thing in thechild's life development, and they have often showed theirconcern about the timing of eruption of teeth. The purpose ofthis study were to Estimate the average age for eruption time ofPermanent 1st molar, central & lateral incisors in upper & lowerJaw (right & left) in both gender and to Compare the eruptiontime of these teeth between upper & lower Jaw ,right & left side,male &female. This study was conducted at Al Ramadi City /Iraq, where the sample was consisted of “786” children (391male & 395 female) of age 5.5 years to 10 years were theytaken randomly from various schools. Eruption of variouspermanent teeth (1st Molar, Central & Lateral Incisors teeth)were noted in both jaws and both sides. In our study we foundthat the permanent 1st molars were the first permanent tooththat erupts in all children at the age between 5.87 – 7.96 yearson both jaws and on both right and left sides with the mean ageof eruption at 6.57 ± 0.55 years in lower jaw and 6.62 ± 0.53years in upper jaw. In addition to that our study showed that thenext permanent teeth to erupt were central incisors which eruptat the age between 6.14 – 8.93 years on both jaws and on bothright and left sides with the mean age of eruption at 7.23 ± 0.61years in lower jaw and 6.29 ± 0.57 years in upper jaw. Finally,the eruption of permanent lateral incisors were at the agebetween 7.66 – 9.93 years on both jaws and on both right andleft sides with the mean age of eruption at 8.89 ± 0.56 years inlower jaw and 8.93 ± 0.55 years in upper jaw. The teeth eruptedin female earlier than male and in the lower Jaw than upperJaw. In the most cases the right lower teeth erupted earlier thanthe other quadrant of both jaws. In general, we found that therewas delay in the time of eruption of nearly all the teeth thatwere included in this study.


Article
Examination of Third Molars Eruption Circumstances by OPG

Author: Ayman Hameed Uraibi
Journal: Medical Journal of Babylon مجلة بابل الطبية ISSN: 1812156X 23126760 Year: 2016 Volume: 13 Issue: 2 Pages: 398-404
Publisher: Babylon University جامعة بابل

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Abstract

Third molars or wisdom teeth, as they are more commonly known, are the teeth which are most often missing, impacted and with altered morphology.The aim of this study is to evaluate third molars eruption circumstances which include number, angulation, level, and amount of room for eruption of wisdom teeth per subjects.A total of 300 subjects (150 male and 150 female students within the age group of 17-26 years were selected . Any case who had history of extraction of any of the third molars or who rejected to give approval for participation were excluded, for each subject, panoramic imaging were obtained. The Results showed that the level of occlusal plane of third molar similar to that of adjacent tooth was seen in (40.79%)in male and (51.94)in female, also the results showed that 3.3%of the third molars were congenitally missing, and nearby (90.3%) of the students had all four third molars.0.66%had one third molars and 2%had two third molars, third molar agenesis showed no difference between male and female. Angulations position was maximum with vertical position in maxilla (73.45%) and mesio-angular position in mandible (41.6%) level of occlusal plane of third molar similar to that of adjacent tooth was seen in (45.8.%) in maxilla and (42.73%)in mandible. The present study concluded that panoramic imaging is a valuable radiographic modality in detection of third molars eruption variability.


Article
Time of Emergence of Permanent Teeth and Impact of Nutritional Status among 4-15 Years Old Children and Teenagers in Basrah City /Iraq

Authors: Hiyam S. Ahmed هيام احمد --- Zeyneb A. Al-Dahan زينب عبد الرضا الدهان
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2016 Volume: 28 Issue: 4 Pages: 134-140
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The timing of eruption of permanent teeth is of considerable importance to the dental health planning for diagnostic, preventive and therapeutic measures for children and teenagers. The purposes of this study were to determine timing of maxillary and mandibular permanent teeth emergence (except third molars) and to evaluate the effect nutritional status by anthropometric measures on the eruption time of permanent teeth, investigations had been done according to jaw and gender variations.Materials and Methods: This study was conducted among four to fifteen years old children and teenagers from kindergarten and schools in Basrah city in the south region of Iraq. The total sample composed of 1807 children and teenagers that were collected randomly from kindergartens, primary and secondary schools in Basrah city.The data were statistically analyzed by using probit model in order to compute the median 5th and 95th percentile range of emergence. Athropmetric measures of height and weight were used for the purpose of assessment of nutritional status. The indices include: Weight for age, Height for age and Weight for height; each was considered as in term of standard deviation score (Z – score) as primary indicator of underweight, stunting and wasting respectively. The statistical significance of differences in mean of a normally distributed variable (nutritional indices z score) between 2 groups was assessed by independent samples t-test.Results: The results showed significant differences (p<0.05) between the timing of maxillary and mandibular teeth emergence in girls and boys, with earlier emergence in girls , also the mandibular teeth emerge before their maxillary opposing teeth in both sexes except for premolars .The prevalence of malnutrition according to height for age, weight for age, and weight for height nutritional status indicators were found to be 7.4 %, 3.7 % and 1.5% respectively.The results showed that among well-nourished children and teenagers described by height for age nutritional status indicator, most teeth were significantly erupted earlier than stunted except the lateral incisor which erupted earlier in stunted boys than well-nourished boys but the difference was not significantly accepted. The greatest difference of median eruption age of permanent teeth between well -nourished and stunted found in girls in the second molar tooth.Conclusions: Records indicated that the Iraqi children exhibit variation in their times of permanent teeth emergence when compared with other studies, and among well-nourished children and teenaged described by height for age nutritional status indicator, most teeth were significantly erupted earlier than stunted children and teenagers

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