In Vitro Evaluation of Gastric Acid and Toothbrushing Effect on the Surface State of Different Types of Composite Resins.

: The aim of this in vitro study was to evaluate the effect of gastric acid associated with the effect of toothbrushing on the surface roughness of different types of composite resin used for direct restorations. : The materials used in this study were two microhybrid (Filtek Z250, Herculite XRV) and two nanohybrid (Filtek Z550, Herculite XRV Ultra) composite resins. Two hundred and forty cylindrical samples with a height of 2 mm and a diameter of 6 mm were divided into four groups (groups A, B, C and D) corresponding to each tested material (n = 60).

Conventional and Resin-Modified Glass Ionomer Cement Surface Characteristics after Acidic Challenges.

The aim of the present study was to assess by atomic force microscopy (AFM) the surface roughness of a traditional glass ionomer cement- GIC (Fuji IX GP, GC Corporation, Tokyo, Japan) and a resin modified glass ionomer cement- RMGIC (Vitremer, 3M ESPE, St. Paul, MN, USA) after different immersion regimes on some acidic drinks. Sixteen cylindrical samples having the height of 5 mm and the thickness of 2 mm were obtained from each material and they were divided into two groups: Group I (Fuji IX samples) and Group II (Vitremer samples).

PECULIARITIES OF PHARMACOTHERAPY IN ARTERIAL HYPERTENSION AND COMORBID PATHOLOGY.

Unlabelled: In patients with arterial hypertension (AH) pharmacotherapy often remains ineffective because of comorbid pathology. Research of haemodynamic and metabolic processes in such patients allows prescribe effective antihypertensive medicines, improve life quality and prognosis.

Material And Methods: 60 patients with AH, coronary artery disease and obesity were divided into three groups: 1st group was treated with lisinopril + atorvastatin + aspirin (regimen I); 2nd group was treated with lisinopril + atorvastatin + bisoprolol + aspirin (regimen II); 3rd group was treated with lisinopril + bisoprolol + indapamide + atorvastatin + aspirin (regimen III).

[Role of the L-arginine-NO system in the prevention and treatment of cardiovascular diseases in pregnant women].

Investigations on using of index possibilities of L-arginin/NO system in evaluation of sanatorium-resort treatment effectiveness of pregnant with cardiovascular disorders were conducted. It was analyzed the dynamics of twenty four hour cycle rhythm of L-arginin and total nitrites and nitrates constance in saliva of 58 pregnant, 20 of which were suffering from metabolic cardiomyopathy, 23-from neurocirculatory dystonia and 15 were healthy pregnant. As the result of examination there were found out considerable changes of parameter values of biological rhythms: duration of rhythm, average twenty four hour cycle range of activity, amount of difference between max index per twenty hour cycle and average index per twenty hour cycle, period of max and min activity.

Q fever urban cases in Romania.

Q fever urban sporadic cases in Romania in the 1981-87 period are reviewed as concerns their incidence, seasonality and epidemiological data. Urban cases represented 76.8% as against 23.