RESUMEN
This study was carried out to measure the dimensional changes in silicone impression material, which can affect the fitness of the prosthesis. Using both single and double mix techniques, 20 impression samples for each of 3 different proprietary silicones, Xantopren- H, President and Fulldent, were made. Selected measurements were made on the stone casts made from each impression. In all 3 cases, the single mix gave more accurate casts than the double mix technique. The Xantopren- H impressions had the most accurate dimensions
Asunto(s)
Técnica de Impresión Dental , Modelos Dentales , Elastómeros de Silicona , Ensayo de Materiales , Propiedades de Superficie , Materiales de Impresión DentalRESUMEN
Sharp dental bridges are still used among dental treatments in certain countries including Iraq. This study was conducted to indicate the differences in microbial and immunological effects on patients using sharp versus cast dental bridges
Asunto(s)
Inmunoglobulinas , Saliva , Bacterias , Materiales Dentales , DentadurasRESUMEN
We measured the dental arch of 220 Baghdad patients [120 females and 100 males] attending the University of Baghdad Dental Clinic. Alginate impressions were taken from which stone casts were made. Specified points were noted on the casts and length and width measurements were taken. We found that the length measurements were smaller than the width measurements indicating an ovoid shape of arch. Also, the size of male arches was greater than those of females
Asunto(s)
Mandíbula , Arco DentalRESUMEN
The aim of this study was to assess the effect of age on tooth colour and to record the range of tooth colour in patients in Baghdad, Iraq. A total of 650 patients who were treated by fixed prosthesis were included in the study. In younger patients the commonest colours found in teeth were white-red and yellow. The proportion of patients with grey colour and red-grey increased with age. Since each tooth might possess different shades in its surface, the quadrant method of shade selection is recommended
Asunto(s)
Diente , Factores de Edad , Color , Decoloración de Dientes , DenticiónRESUMEN
A total of 420 Benghazi patients were clinically examined for root caries. Root caries was not limited to older patients and the proportion of root caries among young adults was similar to that of the older age groups. Most of the lesions were located proximally and underneath restorations rather than labially or lingually. Our results may serve as baseline data for further studies on root caries in the Libyan Arab Jamahiriya
Asunto(s)
Caries Dental , Caries RadicularRESUMEN
We investigated the causes of tooth extraction among patients in Sebha in southern Libyan Arab Jamahiriya. A total of 600 patients who had undergone tooth extraction were surveyed. We found more males [68%] than females had t~adle etti extracted and also patients with no education [53%]. Caries and periodontal disease were the main causes of tooth extraction. For those patients who opted for tooth extraction over other treatment, they mostly did so for financial reasons. There was generally poor oral hygiene and oral knowledge, which should be tackled