1,720,986 research outputs found
19th SIOI National Congress in Pisa
No full textEditoriale di presentazione del numero di EJPD dedicato al 19th SIOI National Congress svoltosi a Pisa l'1.12.201
Clinical Performance of CentionTM Alkasite Restorative Material vs. Glass Ionomer Cement Used in Deciduous Teeth: One-Year Evaluation
No full textConservative dentistry in primary dentition aims to remove and repair existing carious lesions and to prevent secondary caries up until exfoliation of the primary tooth happens, in order to maintain the important role in terms of the space maintenance and guidance for eruption that deciduous teeth have. Many different materials are used, and some of them, recently commercialized, show bioactive properties able to prevent secondary caries. This trial’s primary focus is to evaluate the biological, functional, and aesthetic characteristics of Cention-N alkasite material compared to glass ionomer cement (GIC) through the use of standardized FDI criteria for direct restorations. A blinded, split-mouth study was designed for this purpose, including 112 deciduous molars in 45 children showing class II caries restored with either GIC or alkasite material. The data from this study indicates that the Cention-N alkasite material showed equal performance compared with Fuji IX GIC after one year. A thorough evaluation of exfoliated teeth restored with this material will provide long-term data and an evaluation on infiltration rates
Clinical Evaluation of the Use of Desensitizing Agents in the Management of Dentinal Hypersensitivity
No full textDentinal hypersensitivity represents one of the most widespread dental problems and symptoms in the general population. It mainly affects the age group between 18 and 65 years old, presents an incidence of 35%, and may negatively affect the oral health-related quality of life of these patients. This longitudinal study aims to measure dentinal hypersensitivity in adult patients after the use of domiciliary desensitizing devices. In this study, 52 patients were included (32 females and 20 males, mean age: 53 ± 9.4) At T0 (baseline), patients were instructed to use a desensitizing toothpaste and, at T1, 27 patients reported using sodium monofluorophosphate (1450 ppm) and arginine 8% product (product A), while 25 patients reported using a toothpaste containing n-HAp (nano-hydroxyapatite) in effective dose 2.25% and 0.15% fluoride (1500 ppm) (product B). The study was carried out through three follow up appointments, 14 days apart from one another (T1 and T2). Results showed that the air sensitivity test did not exhibit a significant difference between the time points (p > 0.05), while a significant improvement of DH was recorded for tactile, osmotic, cold thermic, acid, and omni-comprehensive tests in both groups. Both desensitizing agents were effective in reducing DH for different stimuli
Clinical evaluation of salivary indices and levels of Streptococcus mutans and Lactobacillus in patients treated with Occlus-o-Guide.
No full textThe Italian perspective on fluoride intake in children and adolescents.
No full textThis paper represents the outcome of the meetings of the Committee composed by Pedodontists (SIOI - Italian Society of Paediatric Dentistry) and Paediatricians (FIMP - Italian Association of Paediatricians) with the aim to share an evidence- based common approach in caries prevention during childhood and adolescence. The most important topic was an update on fluoride administration methods in order to minimise the risk of fluorosis and maximise its caries-preventive effect.
CONCLUSION:
The conclusions of this work are exposed in a synoptic table
Age limit for infiltration anaesthesia for the conservative treatment of mandibular first molars. A clinical study on a paediatric population.
No full textEffects of cigarette smoke on salivary superoxide dismutase and glutathione peroxidase activity
No full textAbstract
Cigarette smoke contains oxidants such as oxygen-free radicals and volatile aldehydes, which are probably the major causes of damage to biomolecules exposed to cigarette smoke. However, saliva has an antioxidant defense system able to counter toxic activities of radical species that is formed by antioxidant enzymes, including superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px). The purpose of this study is to verify the possible effects of cigarette smoke on SOD and GSH-Px. Forty-four patients (25 males and 19 females) were enrolled in this study. The participants were 20 smokers (12 males and 8 females) and 24 non-smokers (13 males and 11 females). Furthermore, 10 subjects of the control group were ex-smokers (9 males and 1 female). Their mean age plus or minus standard deviation (SD) was 58.8 plus or minus 15.9 years for the case group and 73.8 plus or minus 10.6 years for the control group. All patients were underwent a careful anamnestic investigation and examination of the oral cavity. After rinsing the mouth with water, each subject put 3 cc of non-stimulated saliva inside a test tube. The saliva was centrifuged and oral peroxidase and superoxide dismutase activity was measured according to a specific assay. Statistical analysis was performed to evaluate differences between the groups and significant differences were observed for p less than 0.05. A significant decrease of GSH-Px activity was detected in the smoking group (p less than 0.05), while the SOD activity was similar in the control and case groups. According to the sex, a significant decrease of GSH-Px activity was noted in males of the smoker group (p less than 0.05), while in the sample of females no significant difference of the enzymatic activity was found. Moreover, among ex-smokers, there was a significant difference in the values of GSH-Px between those who had not smoked for less than ten years and those who had not smoked for more than ten years. Cigarette smoke may alter the detoxification of hydrogen peroxide through a decrease of GSH-Px activity. The overproduction of H2O2 may lead to an oxidative stress that is involved in a large number of diseases, including precancerous and neoplastic lesions of the oral cavity. The effects of cigarette smoke on salivary antioxidant enzymes decrease after withdrawal from smoking and the benefits become more evident with the passage of time
Clinical evaluation of salivary indices and levels of Streptococcus mutans and Lactobacillus in patients treated with Occlus- o-Guide.
No full textAIM: The aim of this study was to assess the changes over time associated with salivary indices and the presence of Streptococcus mutans and Lactobacillus in patients treated with Occlus-o-Guide.
MATERIALS AND METHODS: Two groups of patients were evaluated: a test group of 20 patients treated with Occlus-o-Guide and a control group of 20 patients not subjected to orthodontic treatment. Both groups were homogeneous for age and sex. We examined the levels of S. Mutans and Lactobacillus, the salivary flow, the buffer capacity of saliva and the Sillness and Loe plaque index (PI). The samples were taken at baseline (T0), after 3 months (T1) and after 6 months of treatment (T2). All data were compared using Student's t test.
RESULTS: The percentage of patients with a level of Streptococcus mutans able to cause caries was decreased in the test group (T0 = 10%, T1 = %, T2 = 0%) compared to the control group (T0 = 0%, T1 = 5%, T2 = 35%), whereas the amount of Lactobacilli was different (test group T0 = 15%, T1 = 0%, T2 = 10%; control group T0 = 0%, T1 = 5%, T2 = 35%). The total salivary flow was increased in the test group (T0 = 47, T1 = 61, T2 = 61) compared to the control group, in which it had remained almost constant (T0 = 44, T1 = 45, T2 = 45). The buffer capacity of saliva was unchanged in both groups over time; the sum of PI-plaque indices was reduced in the test group (T0 = 3, T1 = 0, T2 = 2) compared to the control group (T0 = 0, T1 = 14, T2 = 27).
CONCLUSION: Despite the presence of the Occlus-o-Guide device, patients are able to maintain a good level of oral hygiene, showing improvements of the examinated parameters at follow-ups
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