Purpose: To investigate the survival of adhesive restorations after selective carious tissue removal to soft dentin in primary molars.
Methods: This two-arm randomized clinical trial included 62 subjects (5.9 years ± 1.
Objectives: We investigated factors associated with failure of adhesive restorations in primary teeth and whether repair may increase the survival of failed restorations placed in high-caries risk children.
Materials And Methods: The sample comprised children who attended a university dental service to perform restorative treatment in primary teeth. Data were collected retrospectively from clinical records to assess the longevity of restorations.
Objective: The aim of this retrospective study was to analyze the survival probability of selective caries removal (SCR) treatments in the primary teeth of children with high caries experience and factors potentially associated with treatment failure.
Methods: The sample included SCR treatments conducted in anterior and posterior teeth without sedation or general anesthesia among children attending a university dental service. Kaplan-Meier survival analysis was used to estimate the longevity of restorations and multivariate Cox regression with shared frailty was used to assess risk factors.
Aim: To compare 24-month pulp health outcomes of partial caries removal (PCR) and total caries removal (TCR) with composite restoration in primary molars.
Methods: 48 children aged 3-8 years with at least one molar with a deep carious lesion were included. 120 teeth were randomized to control (TCR; n = 54; 69% class II) and test (PCR; n = 66; 63% class II) groups.
In children with temporal lobe epilepsy (TLE), memory deficit is not so well understood as it is in adults. The aim of this study was to identify and describe memory deficits in children with symptomatic TLE, and to verify the influence of epilepsy variables on memory. We evaluated 25 children with TLE diagnosed on clinical, EEG and MRI findings.
View Article and Find Full Text PDFPurpose: To clinically evaluate the status of caries lesions adjacent to restorations (AdjCL) in primary molars, and its relationship to the child's carious activity and marginal restoration integrity.
Methods: Three independent examiners (trained, calibrated and blinded) evaluated 64 randomly selected restorations (occlusal and occluso-proximal) by the AdjCL status (kappa = 0.844), the restoration marginal integrity (kappa = 1) and the radiographic presence of lesions in the occlusal restoration margins (kappa = 1).
Aim: To evaluate the dentin microhardness of primary teeth undergoing indirect pulp capping (IPC) after partial caries removal.
Materials: Primary molars were treated with IPC, restored with self-etching primer (Clearfil SE Bond; CSE), and filled with composite resin (Filtek Z250) with (n = 10) or without (n = 7) a calcium hydroxide base liner (Dycal; Dy). After tooth exfoliation, the microhardness of the demineralized dentin remaining under the restoration (n = 17) was analyzed and compared with that of sound and carious primary dentin (n = 20).
Objective: The goals of the work described here were to determine if hippocampal and extrahippocampal atrophy in children with temporal lobe epilepsy (TLE) follows a pattern similar to that in adult patients, and to assess the clinical and neuropsychological relevance of regional brain atrophy in pediatric TLE.
Methods: Children with symptomatic TLE (n=14: 9 with mesial TLE due to hippocampal atrophy and 5 with TLE due to neocortical lesions), healthy children (n=14), and 9 adults with mesial temporal lobe epilepsy (MTLE) were compared using voxel-based morphometry (VBM) of brain magnetic resonance imaging (MRI). The children underwent a comprehensive neuropsychological battery.
There is evidence that adults with temporal lobe epilepsy present executive impairments. However, there is limited information in children, especially when using a comprehensive neuropsychologic battery. We aimed to: 1) investigate the presence and severity of executive dysfunctions in children with temporal lobe epilepsy, and 2) determine the implications of clinical variables (including etiology) in the occurrence and severity of executive dysfunction, using eight paradigms.
View Article and Find Full Text PDFThe neuropsychological features of children with temporal lobe epilepsy are not yet well defined. The aim of this study was to identify the neuropsychological deficits in children with temporal lobe epilepsy. We evaluated 25 patients and compared them with 25 normal children.
View Article and Find Full Text PDFPurpose: To evaluate the clinical and radiographic changes in primary teeth submitted to indirect pulp treatment (IPT) over a 36-month period.
Methods: Thirty-nine primary molars with deep caries, but without preoperative signs and symptoms of irreversible pulpits, received IPT. The teeth were randomly divided into two groups, according to the material used for protection of the dentin-pulp complex: (1) a calcium hydroxide liner (Hydro C) and (2) a gutta-percha sheet.
The authors clarified the value of interictal discharges and verified which extratemporal regions may also show epileptiform activity in temporal lobe epilepsy (TLE) in childhood. Thirty consecutive patients aged 3 to 18 years (mean age = 12.16 years; 16 male) with TLE associated with hippocampal atrophy were studied.
View Article and Find Full Text PDFPurpose: To evaluate clinically and microbiologically the effect of calcium hydroxide (CH) on carious dentin on primary teeth submitted to indirect pulp capping (IPC).
Methods: Twenty 4-7 year-old subjects with 42 treated teeth participated in the study. The treatment consisted of incomplete excavation of the demineralized dentin, application of a CH or gutta-percha (GP) layer and sealing with a resin-based composite for 4-7 months.
The objective of this study was to evaluate the safety and efficacy of clobazam in children with refractory focal epilepsy. We investigated 100 consecutive patients concerning etiology of epilepsy, previously used antiepileptic drugs, seizure frequency and adverse events. Clobazam was introduced as add-on therapy in patients with previous failure of at least two monotherapies.
View Article and Find Full Text PDFObjective: To characterize clinical and interictal electroencephalographic aspects of children and adults with temporal lobe epilepsy (TLE) due to tumoral lesions.
Method: We performed a retrospective analysis of the clinical and interictal electroencephalographic aspects of 16 children (64 exams) and 12 adults (78 exams) with lesions in the temporal lobe.
Results: The most frequent etiologies were gangliogliomas, DNETs, followed by astrocytomas.
Although several advances have occurred concerning the use of electroconvulsive therapy, little progress has been made in understanding the mechanisms underlying its therapeutic or side effects. Na(+),K(+)-ATPase is an important enzyme of central nervous system, responsible for ionic gradient maintenance and consumption of approximately 40-50% of brain ATP. This work was performed in order to determine Na(+),K(+)-ATPase activity after acute and chronic electroconvulsive shock.
View Article and Find Full Text PDFUnlabelled: West syndrome (WS) is a severe epileptic encephalopathy of childhood, characterized by spasms, developmental deterioration and hipsarhythymia.
Objective: To evaluate the safety and efficacy of vigabatrin (VGB) in the treatment of WS.
Method: We evaluated every patient diagnosed with WS seen at the pediatric epilepsy clinic and exposed to VGB.
The aim of this study was to investigate Na+, K(+)-ATPase activity in cerebral cortex, hippocampus and hypothalamus of diabetic rats. The action of dietary soy protein on the effect produced by diabetes on this activity was also tested. Forty-nine-day-old Wistar were divided into two groups: diabetes streptozotocin (50 mg/kg body weight) and control (citrate solution).
View Article and Find Full Text PDFNeurobiol Learn Mem
September 2005
In the present study we investigate the effect of homocysteine (Hcy) administration, the main metabolite accumulating in homocystinuria, on butyrylcholinesterase (BuChE) activity in serum of rats. For the acute treatment, 29-day-old Wistar rats received one subcutaneous injection of Hcy (0.6 micromol/g) or saline (control) and were killed 1 h later.
View Article and Find Full Text PDFThis study describes the clinical, electroencephalographic, and behavioral features of 36 children with temporal lobe epilepsy. Patients were divided into two groups: group A, with 6 patients (< 6 years), and group B, with 30 patients (6-18 years). Statistical analysis was performed considering the significance level of .
View Article and Find Full Text PDFTemporal lobe epilepsy in childhood is characterized by great clinical, electroencephalographic, and etiological diversity. The prognosis after temporal lobe epilepsy surgery in childhood is usually good, with most patients achieving complete seizure control. However, in some children behavior deteriorates postoperatively.
View Article and Find Full Text PDFGuanidinoacetate methyltransferase deficiency (GAMT-deficiency) is an inherited neurometabolic disorder clinically characterized by epilepsy and mental retardation and biochemically by accumulation of guanidinoacetate (GAA) and depletion of creatine. Although the neurological symptoms are predominant, the pathogenesis of the brain dysfunction in this disorder is not yet established. In the present study we investigated the in vitro effect of GAA on Na+, K+-ATPase and Mg2+-ATPase activities in synaptic plasma membrane from hippocampus of young rats.
View Article and Find Full Text PDFHomocystinuria is an inborn error of sulphur amino acid metabolism, resulting in accumulation of tissue homocysteine. This disease is characterized predominantly by vascular and nervous system dysfunction. In the present study we investigated the in vitro effects of homocysteine, the main metabolite accumulated in homocystinuria, on platelet Na+,K+-ATPase and serum butyrylcholinesterase (BuChE) activities of young rats.
View Article and Find Full Text PDFIn the present study, we investigated the effect of Vitamins E and C on the inhibition of Na(+),K(+)-ATPase activity provoked by proline (Pro) administration in rat hippocampus. Five-day-old rats were pretreated for 1 week with daily i.p.
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