Browsing of Articles

1. Vranić L, Granić P, Rajić Z. Basic amino acid in the pathogenesis of caries. Acta Stomatol Croat. 1991;25(2):71-6.
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   Title in English:	Basic amino acid in the pathogenesis of caries
   Title in Croatian:	Bazične amino kiseline sline u patogenezi karijesa
   Type of Article:	original scientific paper
   MeSH:	DENTAL CARIES + etiology SALIVA + chemistry AMINO ACIDS CHROMATOGRAPHY, ION EXCHANGE HISTIDINE + analysis METHYLHISTIDINES + analysis
   Abstract:	Amino acid pattern in total saliva was studied in 43 children with caries, aged 12-15 years, using the method of ion exchange chromatography. The results were compared to those obtained in a control group of 39 children without caries. In saliva from the children with caries, a significantly lower level of arginine (22.02 mumol/l), and a complete lack of histidine and its derivatives were observed when compared to the control group, where the concentrations of arginine and 1-methylhistidine were 28.36 and 26.34 mumol/l, respectively. The results obtained suggested that a decreased concentration of arginine, and a lack of histidine and its derivatives might imply an increased risk of caries.

2. Šutalo J, Meniga A, Rukavina J, Azinović D, Pichler G. Indium light source for curing composite resins. Acta Stomatol Croat. 1991;25(2):77-82.
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   Title in English:	Indium light source for curing composite resins
   Title in Croatian:	Indijev svjetlosni izvor za polimerizaciju kompozita
   Type of Article:	original scientific paper
   MeSH:	COMPOSITE RESINS INDIUM
   Abstract:	There is an existing problem of cumulative hazardous effect of violet and near ultra-violet light which is produced by standard polymerisation units. Another restrict is shallow depth of cure, particularly of darker composite shades in premolar and molar region. Searching for better light source we used indium resonance lines from several indium high pressure lamps and tested curing effect on three different composite resins. The overall results are better with the lamp in which two strong resonance lines of indium are present, rather than with a lamp with just one strong resonance line. The improvements in lamp design are necessary to overcome conventional polymerisation lamps.

3. Ivanović V. [Bond strength of newer dentine adhesive systems]. Acta Stomatol Croat. 1991;25(2):83-9.
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   Title in English:	Bond strength of newer dentine adhesive systems
   Title in Croatian:	Snaga adhezije novijih dentinskih vezivnih sistema
   Type of Article:	original scientific paper
   MeSH:	ADHESIVES TENSILE STRENGHT SHEAR STRENGTH
   Abstract:	Introduction of new dentine bonding agents in a practice of dentistry, variety of results on their crucial characteristics in foreign literature and lack of information in our literature led to a necessity to conduct own scientific research on dentine adhesives in order to facilitate the choice of available products. The purpose of this study was to estimate the adhesive strength of different dentine bonding agents to a treated human dentine immediately after light curing of a compatible composite material. Shear and tensile bond strength of Tripton, Gluma, Scotchbond-2 and Dentin Protector was measured. Control material was glass-ionomer base-cement Vitrabond. Human extracted premolars from both jaws were prepared to a flat surface from either occlusal or buccal aspect, and materials were applied, respectively. The results showed: a) values of shear bond strength ranged from 2.01-3.92 MPa with no statistical differences between tested systems; b) tensile bond strength varied from 13.7-26-84 MPa; the highest value showed Scotchbond-2, following by Gluma, but significantly lower values showed Tripton and Dentin Protector; c) the aspect of prepared tooth crown had no significant effect on bond strength with the exception of shear bond strength for Gluma-system, when applied on buccal surface showed significantly higher values than applied occlusally; d) dentine-bonding agents which dissolve smear layer with acid components and remove it from prepared dentine surface showed stronger adhesion than agents which leave this debris on a dentin surface.

4. Temmer K, Stipetić D, Cekić-Arambašin A, Kraljević K. [Effect of prosthesis cleansing agent on prosthetic base fungi]. Acta Stomatol Croat. 1991;25(2):91-6.
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   Title in English:	Effect of prosthesis cleansing agent on prosthetic base fungi
   Title in Croatian:	Utjecaj sredstva za čišćenje proteze na kvasnice protezne baze
   Type of Article:	original scientific paper
   MeSH:	DENTURE CLEANSERS FUNGI + drug effects DENTAL PLAQUE CANDIDA ALBICANS DENTURE BASES
   Abstract:	Candida albicans and other fungi are frequently found in subjects wearing prostheses, especially in prostheses with poor hygiene, i.e. with accumulations of food, plaques and calculi. The aim of this study was to assess the efficacy of Corega extradent relative to fungi adhering to the prosthetic base. Results of the study showed the prosthesis hygiene to be substantially related to inflammation of palatal mucosa. The mean number of fungi per sq.cm of prosthetic base was 64 x 10(5). The number of fungi was redetermined after a two-day treatment with Corega extradent, with unchanged other habits of the prosthesis wearing and cleansing. The number of fungi decreased in all study subjects, the mean value of individual differences being 2238 times. In prostheses with a great number of fungi and extremely poor hygiene, the effect of Corega extradent was poorer, indicating the need of additional mechanical cleansing with a brush.

5. Seifert D, Vukovojac S, Muretić Ž, Pandurić J. [Comparison of location between nasion and orbitale points on soft tissue and on osseal structures, in articulatory technique]. Acta Stomatol Croat. 1991;25(2):97-102.
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   Title in English:	Comparison of location between nasion and orbitale points on soft tissue and on osseal structures, in articulatory technique
   Title in Croatian:	Usporedba položaja nasiona i orbitale na mekim tkivima i koštanim strukturama glave u artikulacijskoj tehnici
   Type of Article:	original scientific paper
   MeSH:	CEPHALOMETRY + methods NASAL BONE + anatomy & histology ORBIT
   Abstract:	A skin projection of the orbitale as palpated through soft tissues was designated on the left cheek of 22 subjects. The nasion, orbitale and cephalostat nasion direction medium were plotted on transparent paper after teleroentgenography. Mutually parallel lines were drawn through the points, the line obtained on the construction of the nasion direction medium used as a basic one. Distances between the lines were measured and results statistically processed. Transfer of the model into the articulatory region by means of the orbitale and buccal arch nasion direction appeared not to orientate reliably the model according to reference planes of the head. Our results are consistent with literature data available.

6. Anić I, Pavelić B, Vidović D. [Possibility of the application of CO2 laser in the prevention of demineralisation of the enamel]. Acta Stomatol Croat. 1991;25(2):103-8.
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   Title in English:	Possibility of the application of CO2 laser in the prevention of demineralisation of the enamel
   Title in Croatian:	Mogućnost primjene CO2 lasera u prevenciji demineralizacije cakline
   Type of Article:	original scientific paper
   MeSH:	DENTAL ENAMEL + radiation effects TOOTH DEMINERALIZATION LASERS + therapeutic use
   Abstract:	Tooth enamel laser irradiated under certain conditions previously has been shown to have reduced subsurface demineralizations rate. The teeth were cut vertically in half with a thin diamond disc. One half of each tooth served as a control and the other half was irradiated using the CO2 laser. Laser energy was applied at incisive labial surface (15 W, 0.5 s, spot size 3.5 mm). After irradiation the specimens were coated with wax leaving only the windows 3 x 3 mm on the labial surfaces. After experimental demineralisation with 0.2 M sodium acetate and 0.1 M lactic acid solution for 10 days, dissolved calcium and phosphorus were analyzed in the demineralizating solutions using atomic absorption spectrophotometry and colorimetric method (method described by Lowey), respectively. Ca and P concentrations in demineralizing solutions per unit surface area were lower then the controls.

7. Blašković-Šubat V. [Frequency and most common localisation of root canal curvature]. Acta Stomatol Croat. 1991;25(2):109-15.
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   Title in English:	Frequency and most common localisation of root canal curvature
   Title in Croatian:	Učestalost i najčešći položaj zavinuća korijenskih kanala
   Type of Article:	original scientific paper
   MeSH:	DENTAL PULP CAVITY + anatomy & histology ROOT CANAL THERAPY + instrumentation DENTAL CAVITY PREPARATION TOOTH ROOT + anatomy & histology
   Abstract:	The root canal therapy of the curved canals is a complex operative procedure. Therefore 260 root canals were analysed radiologically to determine the frequency and the most common localisation of the root canal curvature. The frequency of the curved canals averaged at 59%, being greater in the sample of posterior than in the anterior teeth (p less than 0.05). The root canal curvature was most frequently localised at the apical third part (53.9%), followed by the cervical (33.3%) and the middle (12.8%) third part. The apical curvature was predominant in the sample of the anterior, while the cervical predominant (45.2%) in the sample of the posterior teeth. This study pointed out that the frequency of the curved canals is rather high. Consequently, the necessity for practising the modern root canal preparation techniques, bearing in mind their potential danger, is emphasized.

8. Pećina-Hrnčević A, Stevanović N. [Role of psychologic factors in dental practice with siblings]. Acta Stomatol Croat. 1991;25(2):117-21.
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   Title in English:	Role of psychologic factors in dental practice with siblings
   Title in Croatian:	Značenje psiholoških faktora u stomatološkom radu u djece iste obitelji
   Type of Article:	professional paper
   MeSH:	ANXIETY SIBLING RELATIONS DENTIST-PATIENT RELATIONS
   Abstract:	Results of a study of psychologic environmental factors and their effects on siblings in terms of fear from dental interventions are presented. Thirty pairs of siblings aged 6-15 years, treated at the Zagreb University Institute of Pediatric and Preventive Dental Medicine in Zagreb, were included in the study. The main criterion for inclusion in the study was the fact that one child accepted the treatment without reluctance, while the other child from the same family refused it or accepted it with considerable difficulties. According to this criterion, a cooperative group and a non-cooperative group of children were formed. The study was performed using a poll taken by means of a special questionnaire containing 22 questions. Results showed the psychologic environmental factors to have a marked but not most important role in the genesis of fear from dental interventions in children. Each child revealed himself/herself to be a person of his/her own, whereas environment, i.e. upbringing and education, was found to induce specific reactions in each of them. Therefore, care must be taken by a dental doctor-pedodontist to approach each little patient individually, fully respecting his/her personality.

9. Brkić H, Filipović I. [The meaning of traurodontism in oral surgery - case report]. Acta Stomatol Croat. 1991;25(2):123-7.
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   Title in English:	The meaning of traurodontism in oral surgery - case report
   Title in Croatian:	Značenje taurodontizma u oralnoj kirurgiji - prikaz slučaja
   Type of Article:	professional paper
   MeSH:	BICUSPID TOOTH EXTRACTION ALVEOLECTOMY DENTAL PULP CAVITY + anatomy & histology
   Abstract:	Taurodontism represents morphological abnormality of the teeth followed by the enlargement of the elongation of the pulp chamber in vertical direction; and which is connected with: racial traits, some syndromes, or in most cases appears as the consequence of the increased number of X chromosomes. In the study is presented rare case of hypertaurodont maxillary second premolar and surgical admission during the extraction. Since the classical extraction was not possible because of the rooth mass and the alveol wideness, we did the alveotomia.