[Anwendung von promazin in der stomatologie zur beruhigung unruhiger kindern]

Autori su primijenili promazin (Prazine »Pliva«, Sparine »Wyeth« ) u dozi od 25 mg (1 tb l) 1 do 1 i pol sata prije terapijskog zahvata, za smirenje uzbuđene nemirne djece od 3 do 15 godina života. Kod toga su primijetili, da se umanjila hipermotorička aktivnost malih pacijenata. Makar su neka djeca vikala, dopustila su terapijski zahvat u ustima. Promazin je imao kod 70 pacijenata u 80— 86,7% slučajeva sedativno djelovanje. Osobito je kod druge posjete učinak bio izrazitiji, dok se kod daljnjih posjeta mogla izostaviti primjena promazina. Kod djece, kod koje promazin nije djelovao (1 3,3— 2 0 % ), radilo se o osobito teškim slučajevima. Ta su djeca vriskala već u čekaonici i nisu mogla biti uvedena bez sile u ordinaciju. U tim slučajevima davali smo dan ranije, navečer prije spavanja, 25 mg (1 tb l), a 1 do 1 i pol sata prije terapijskog zahvata još 25 mg (1 tb l) promazina. Kod neke smo djece opazili nakon primjene promazina indiferentnost prema okolini, stoga ih je trebalo otpustiti iz ambulante s pratnjom.The authors applied Promazine ( Prazine »Pliva«, Sparine »Wyeth«) in a dose of 25 mg (1 tab let) an hour to an hour and a half prior to undertaking a therapeutic intervention in order to calm agitated and restless children aged from 3 to 15 years. They noticed that the hyperm otorial activity of the small patients decreased. In spite of the fact that some children screamed, they permitted treatment to be carried out in their mouths. Promazine had a sedative effect in 70 patients, i.e. in 80 to 86,7% of ali cases. Especially during the second visit to the dentist was the effect more marked and in the course of the follow ing visits the application of Promazine could be omitted. On some children Promazine had no effect at all (1 3 .3— 2 0 % ). These were particularly serious cases. These children screamed while in the waiting room and it was impossible to take them into the surgery without using force. In such cases we prescribed a day earlier in the evening 25 mg (1 tablet) and another 25 mg (1 tablet) of Promazine an hour to an hour and a half before starting the actual treatment. In some children complete indifference to their urroundings was noticed after application of Promazine and they had to be escorted home.Die Verfasser vervvendeten zur Beruhigung erregter, unruhiger Kinder im Alter von 3— 15 Jahren Promazin (Prazine »Pliva«, Sparine »Wyeth«) in der Dosis von 25 mg (1 Tabl.) welche 1 bis 1 V2 Stunden vor den therapeuthischen Eingriff verabreicht wurde. Dabei bemerkten wir, dass die hypermotorische Aktivitat der Patienten abnahm. Obwohl einige Kinder noch schrien, gestatteten sie doch den therapeutischen Eingriff im Munde. Promazin entfaltete bei 70 Patienten in 80 bis 86,7% der Falle sedative wirkung. Besonderst in der zweiten Sitzung war die Wirkung noch ausgepragter und bei weiteren Sitzungen konnte sogar auf die Anwendung von Promazin verzichtet werden. Bei den unbeeinflussten Kindern (13,3— 20 %) handelte es sich um besonderst schwierige Falle, die schon im Wartesaal schrien und nicht ohne Zwang in die Ordination gefuhrt werden konnten. In solchen Fallen verabreichten wir am Vorabend vor dem Schlafengehen 25 mg (1 Tabl.) und 1 bis 1 V2 Stunden vor dem therapeutischen Eingriff noch 25 mg (1 Tabl) Promazin. Bei einzelnen Kindern bemerkten wir Teilnahm losigkeit gegenuber der Umwelt, deshalb sollen dieselben auf dem Heimweg begleitet werden

Microwave-Assisted Depolymerisation of Biolignintm in the Presence of Zeolite-Based Catalysts

In this work a microwave-assisted depolymerisation of lignin in the presence of zeolite-based catalysts was studied in order to obtain a valuable bio-oil. Catalytic activity of H-ZSM-5, H-Y, H-BETA and H-Mordenite containing nano-NiO particles was investigated in the depolymerisation of BioligninTM. The catalysts were prepared by mechanochemical dry milling (MCDM) method following by calcination under air at 400 °C. The highest bio-oil yield of 8.78 wt. %, was obtained in the presence of NiO-containing H-ZSM-5

Fatigue life prediction of casing welded pipes by using the extended finite element method

The extended finite element (XFEM) method has been used to simulate fatigue crack growth in casing pipe, made of API J55 steel by high-frequency welding, in order estimate its structural integrity and life. Based on the critical value of stress intensity factor KIc, measured in different regions of welded joint, the crack was located in the base metal as the region with the lowest resistance to crack initiation and propagation. The XFEM was first applied to the 3 point bending specimens to verify numerical results with the experimental ones. After successful verification, the XFEM was used to simulate fatigue crack growth, position axially in the pipe, and estimate its remaining life

Fatigue life prediction of casing welded pipes by using the extended finite element method

The extended finite element (XFEM) method has been used to simulate fatigue crack growth in casing pipe, made of API J55 steel by high-frequency welding, in order estimate its structural integrity and life. Based on the critical value of stress intensity factor KIc, measured in different regions of welded joint, the crack was located in the base metal as the region with the lowest resistance to crack initiation and propagation. The XFEM was first applied to the 3 point bending specimens to verify numerical results with the experimental ones. After successful verification, the XFEM was used to simulate fatigue crack growth, position axially in the pipe, and estimate its remaining life

Derivative spectrophotometric determination of partition coefficient of hydrochlorothiazide between cetyltrimethylammonium bromide micelles and water

The interaction of hydrochlorothiazide (HCT), benzothiadiazine diuretic, with cationic surfactant cetyltrimethylammonium bromide (CTAB) was studied as a model system for drug/membrane interactions. From the dependence of first order derivative amplitude 1 D250.1 on CTAB concentration, by using mathematical models based on the partition of the drug between micellar and aqueous pseudo-phase, CTAB/water partition coefficient Kp was calculated.Physical chemistry 2004 : 7th international conference on fundamental and applied aspects of physical chemistry; Belgrade (Serbia); 21-23 September 200

The Patient’s and the Therapist’s Evaluation of Bridges of Different Materials and Age

The aim of this study was to find out patients\u27 satisfaction with their bridges made of different materials (metal-ceramics, Au/resin, Ag-Pd/resin). One hundred and sixty four patients were examined at the Dental School, University of Zagreb, Croatia. They assessed their bridges – the overall quality, aesthetics, speech, chewing and the health of the gingiva by the scale from 1–5. The same categories were also assessed by a trained prosthodontist. The majority of the patients was really satisfied and gave the highest grades (quality, aesthetics, speech, etc.) and therefore the results were skewed and asymmetrical towards the biggest scores (biggest grades). The best gingival health was evaluated by the group of patients with ceramic crowns and bridges (p < 0.05) and the worst by the patients with Ag-Pd bridges. Speech was scored higher for the lateral than for the frontal bridges. Patients evaluated the health of the tissue surrounding their bridges, overall quality of fixed prosthodontic appliance and aesthetics with significantly higher scores than the prosthodontist (p < 0.01). The results point at a difference between the patient’s and the therapist\u27s evaluations and to the patient\u27s insufficient care about the gingiva around the bridge abutments

Diet, sex, and social status in the Late Avar period: stable isotope investigations at Nuštar cemetery, Croatia

Diet often plays a vital role in defining social divisions within and between social groups and thus can be used to understand the social paradigms of archaeological cultures. During the Early Avar period (568 – 630 A.D.), burial evidence indicates that there were strong demarcations of social stratification, and divisions between sexes and age groups; however, the symbols of intra-population heterogeneity become increasingly rare during the Late Avar period (680 – 822 A.D.). In this study, we investigate social differences expressed through diet in the cemetery population from Nuštar, eastern Croatia (8th to early 9th century), to determine whether dietary social disparities existed during the Late Avar period in this region. Stable isotope analysis of carbon (δ13C) and nitrogen (δ15N) from bone and dentine collagen show no dietary differences, neither between high, middle and low status individuals, nor between males, females and juveniles. These results likely reflect the outcome of the social homogenization process that began after the failed Avar attack on Constantinople in 626 A.D. Geographical patterning is visible when the data from Nuštar is compared to data from other Middle and Late Avar sites. While Avar sites in the southern and south-eastern frontiers of the Avar qaganate do not display dietary differences between sexes, previous isotopic work on populations in Lower Austria show that males consumed a higher proportion of animal protein than females. This is likely the result of Frankish influence and reflects diversity in social practices within the Avar qaganate itself during the Middle and Late Avar periods

Investigation of Ion Release from Ni-Cr Alloy in Various Acidity Conditions

Cytotoxicity is in direct correlation to the level of ion release, with non-precious alloys having higher ion release than that of precious alloys. The most often used non-precious dental alloy is Ni-Cr alloy. The aim of the investigation was to determine the type and quantity of ions released from Ni-Cr alloy (Wiron 99(r), Bego, Germany), in acid solutions with different pH values, and to determine the influence of the type of acid solution, its pH value, and duration of interaction on ion release. The overall sample consisted of 180 pieces of Ni-Cr alloy, 60 samples submerged in each of three different solutions (buffered phosphate solutions pH 3.5 and pH6, and lactic acid solution pH 3.5). Quantity of ion release was measured on solution samples taken at 10 different time intervals by means of the ICP-AES method. Average release of Ni ions in lactic acid solution was 432.42 μg/L, while the highest average Ni+ ions release of 541.67μg/L was measured in buffered phosphate solution pH 6.0. MANOVA demonstrated significant influence of the type of solution on Ni ion release (p<0.01), while the time of exposure was not a significant factor (p=0.23). Zn ions demonstrated the lowest average ion release (88.95 μg/L, phosphate solution pH 3.5). Statistically significant influence of the type of solution and pH value on ion release was determined, except for chromium ions (p<0.05). Dentobacterial plaque acidity is sufficient to start corrosion of Ni-Cr dental alloys