Current Issue : January - March Volume : 2013 Issue Number : 1 Articles : 6 Articles
Purpose. The aim of the present study was to evaluate the clinical response of the pulp in teeth with chronic periodontitis.Methods.\r\nConsecutive patients who had been admitted to the Clinics of Periodontology and fulfilled the criteria of inclusion were enrolled\r\nfrom January to December 2007. Ninety-eight single-root teeth from 27 patients with chronic periodontitis were evaluated clinically\r\nwith regard to clinical attachment level (CAL), probing depth (PD), and gingival recession (REC). After periodontal measurements,\r\nPulpal Sensitivity (PS) was evaluated with the use of a cooling stimulus test. Data was analyzed with Studentâ��s t test and\r\ncontingency C coefficient. Results. Teeth that responded positively to PS test presented lower values of CAL (7.8 �± 2.8 mm), PD\r\n(5.0 �± 2.3 mm), and REC (2.8 �± 1.8mm) in comparison to those that responded negatively (CAL = 12.0 �± 2.2 mm; PD = 7.9 �±\r\n1.6 mm; REC = 4.1 �± 2.4mm) (P < 0.01, Studentâ��s t test). In addition, significant correlations were observed between PS and\r\nperiodontal parameters. Conclusions. Within the limits of this study, it could be suggested that the progression of periodontitis\r\nmay significantly influence the negative pulpal response....
The prevalence of dental caries and supragingival plaque and calculus in 785 secondary schools students was assessed. More than\r\nhalf (53.6%) of the students were caries-free, and the majority of those with dental caries experience were aged 14ââ?¬â??17 (68.1%)\r\nand females (53%). Mean DMFT was 1.26, with mean D-component of 1.05, and molars were most affected. Most students had\r\nsupragingival plaque (74%) and calculus (56.9%) and more so in males than females (P > 0.05). Less than half of the students\r\nhad experience of dental caries and those with caries were mostly females and of the younger age group. The low DMFT was\r\ncontributed to the D-component, and molars were the tooth type most affected.The majority of students had supra-gingival\r\nplaque and calculus and more so in males than females....
Purpose. To evaluate the histopathological condition of the pulp in teeth with different levels of chronic periodontitis in humans.\r\nMethods. Twenty-five single-root nondecayed teeth were divided into three groups as follows: group 1, clinical attachment level\r\n(CAL) 3 to 4mm and alveolar bone loss (BL) from 4 to 6mm without reaching the tooth apex; group 2, CAL = 5mm and\r\nBL > 6mmwithout reaching the tooth apex; group 3, CAL = 5mmand BL > 6mmup to the tooth apex.Histological analyses were\r\naccomplished after laboratorial processing. Results. The mean of CAL was 3.2 �± 0.7mm in group 1, 7.6 �± 2.0mm in group 2, and\r\n12.1�±2.8mmin group 3, while for BL it was 4.8�±0.9 mm, 7.6�±2.2 mm, and 11.9�±2.1 mm, respectively. Histopathological data in\r\nthe pulpal chambers were similar among the three groups showing normal aspects, and, the radicular pulps showed variable levels\r\nof reactive dentin, fibrosis, dystrophic mineralizations, atrophy, and mononuclear inflammatory infiltrate. Conclusions. Gradual\r\nprogression of the chronic periodontitis led to changes in the histopathological aspects of the radicular pulp with progressive\r\ninvolvement....
The aim of the study was to assess the pattern of malocclusion in different ethnic group of Mauritian population visiting the\r\nOrthodontic Department at Mauras College of Dentistry and Hospital, Republic of Mauritius. The study population comprised\r\nof 624 patients who visited the orthodontic department during 2010. The clinical examination was conducted by a well-calibrated\r\northodontist. The data were recorded in the case sheets and was analyzed for presence of angles class I, class II, and class III malocclusion\r\nin both male and female patients of Asian, African, Caucasian, and Chinese ethnicity aged 5ââ?¬â??55 years.Malocclusion was\r\nfound to be high in females compared to males. 414 patients (150 male + 264 female) presented with class I, 182 patients (52 male +\r\n130 female) presented with class II, and 28 patients (12 male + 16 female) presented with class III. Asian ethnic group were more\r\naffected and patient seeking orthodontic treatment was high in 11ââ?¬â??15 years age group....
Introduction. Sealing abilities of two self-etch adhesives were evaluated after two aging processes: storage in water and\r\nthermocycling. Materials and Methods. Cl V cavities were prepared on the buccal and lingual aspects of 48 human premolars,\r\nwith cervical margins 1mm below the CEJ. Clearfil Protect Bond (CPB) and BeautiBond (BB) (two-step and one-step self-etch\r\nadhesives, resp.) were applied, each to half of the cavities and restored with composite resin. Each group was randomly subdivided\r\ninto 4 subgroups (n = 12) and evaluated for dye penetration after 24 hours, after 3000 thermocycling rounds, after a 6-month\r\nwater storage, and after 3000 thermocycling rounds plus 6-month water storage, respectively. Data was analyzed using SPSS 11.5\r\nand Kruskal-Wallis and Mann-Whitney U tests (a = 0.05). Results. There were no significant differences in enamel and dentin\r\nmicroleakage between the adhesives (P = 0.683; P = 0.154). Furthermore, no significant differences were observed in enamel\r\nmicroleakage of each one of CPB and BB (P = 0.061 and P = 0.318, resp.). However, significant decrease was observed in\r\nsubgroups 3 and 4 (P = 0.001) for CPB dentinal margins. Conclusion. In this study, limited aging procedures had no influence\r\non marginal integrity of composite resin restorations bonded with self-etch adhesives of CPB and BB. Furthermore, CPB dentinal\r\nsealing improved after aging....
The objective of this paper was to assess the effects of school-based fluoride mouthrinsing (S-FMR: weekly using 0.2% NaF solution) in two groups of school children with different periods of exposure to S-FMR in elementary school. Subjects were the S-FMR group consisted of 599 children, participated for six years. The control group consisted of 282 children, participated for less than one year in the sixth year of elementary school. From the results of the present survey, the caries reduction rate of S-FMR in the permanent teeth was 36.6% for DMFT and 42.8% for DMFS, and person rates with DMF, DMFT, DMFS, and CO (questionable caries under observation) were inhibited in both boys and girls. Girls in the control group showed clearly higher values for all parameters of dental caries because of earlier teeth eruption; however, no gender differences were observed in the S-FMR group. As caries prevalence in the first molars accounted for about 85% regardless of participation to S-FMR, and first molar caries were more common in the mandible than in the maxilla, consideration should be given to preventive measures against pit-and-fissure-caries in addition to S-FMR....
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