Permanent lateral incisors have been considered as major missing teeth in the mouth. The main aim of the present study is to conduct a comparative study of maxillary and mandibular arch widths, overjet and overbite for a sample with missing lateral incisors and normal class I occlusion.The sample of the study comprises sixty pairs of study models of both genders, which were separated into two groups. The first group consisted of thirty casts of bilateral congenital missing lateral incisors, while the second group consisted of thirty casts of the class I occlusion. The intercanine width, interpremolar width, intermolar width, overjet and overbite were measured for the sixty samples.The results of this study demonstrate a significant reduction in maxillary and mandibular arch width in bilateral missing lateral Incisors as compared with normal class I group. The results also revealed a significant reduction in overjet and overbite in bilateral missing lateral incisors as compared with normal class I group. A significant difference was also reported between the two groups based on gender difference in the maxillary arch width. Conversely, non-significant difference was found in the mandibular arch width. The present study also shows non-significant difference based on gender difference in overjet and overbite in the two groups.
Objectives: the aim of this study to evaluate changes in the saliva of individuals undergoing orthodontic treatment with fixed appliances. Materials and Methods: Thirty-four people (15male and 19 female) in this study, aged (16-32) years old with the mean age of 23.60±5.46 were selected among individuals that sought dental care at the Ramadi city. Two samples were taken from each patient, one before beginning the orthodontic treatment and the other1 month after placement of the appliance. pH, Salivary flow rate, concentrations of calcium, phosphate, magnesium. glucose total proteins, albumin, and IgA were measured in all salivary samples. Results: There was a significant decrease in the salivary pH, concentration of calcium and phosphate after placement of fixed appliance (p<0.05), there was also significant increase in salivary flow rate, glucose, and IgA concentrations in the saliva after placement of fixed appliance and no significant change in magnesium concentration. Conclusions: Orthodontic treatment changes the oral environmental factors. It is necessary to maintain the balance between the protective factors and the caries risk factors during the orthodontic treatment with a rigorous home care program toward correct oral hygiene procedures necessary to control plaque accumulation for caries and periodontal disease prevention.
The present study aimed to isolate and identify the microorganisms associated with causing problems to patient in all period of wearing fixed orthodontic appliance ( FOA) in Ramadi city. Sixty-six patients treated with FOA for a period ranged from 14 -35 years included in this study wabs were collected from gingival area around fixed orthodontic appliance to be cultured aerobically. Many important pathogens were isolated and identified in all age groups and in all duration include candida albicans, E.coli, Klebsiella spp., Staphylococci and many α.Hemolytic and β.Hemolytic Streptococci. The study recommended the use of antibiotic and antifungal drugs during wearing appliance in addition to the maintenance of a good oral hygiene. Further study is also recommended to cover the role of anaerobic bacteria.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.