Browsing of Articles

1. Šlaj M, Goja Ž, Lapter V. [Measurement of orthodontic appliance forces by means of originally constructed sensors]. Acta Stomatol Croat. 1989;23(2):95-107.
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   Title in English:	Measurement of orthodontic appliance forces by means of originally constructed sensors
   Title in Croatian:	Sile mobilnih ortodontskih naprava evaluirane senzorima vlastite konstrukcije
   Type of Article:	original scientific paper
   MeSH:	ORTHODONTIC APPLIANCES DENTAL STRESS ANALYSIS
   Abstract:	In introductory remarks the most important biomechanical principles, which are relevant for the research, and conditions which must be satisfied presented in intraoral measuring of orthodontic forces were pointed out. First the aim of the research was defined, and then the investigation of mechanical properties of acrylics as a material for orthodontic appliances were carried out. The type of strain gauges, bonds and measuring system configurations, as well as measuring amplifiers and recording instruments were discussed. Some of measuring sensors, their principles and applicability were discussed. The calibration apparatus was modified for the sensor developed, and the calibration results were analysed by means of statistical methods (linear regression). The behaviour of all used sensors were found to be linear, which enables their application and reduces the measuring results interpretation.

2. Živko-Babić J. [Influence of heat treatment on the silver-palladium alloy microstructure]. Acta Stomatol Croat. 1989;23(2):109-19.
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   Title in English:	Influence of heat treatment on the silver-palladium alloy microstructure
   Title in Croatian:	Utjecaj toplinske obrade na mikrostrukturne promjene srebro-paladijeve legure
   Type of Article:	original scientific paper
   MeSH:	DENTAL ALLOYS DENTAL CASTING TECHNIQUE HEAT PALLADIUM SILVER + therapeutic use
   Abstract:	Cast dental alloys, even those made of precious metals, are not homogeneous. In order to ensure a high-quality cast, it was necessary to determine optimal casting temperature and additional heat treatment to allow for homogenization of the cast in the microarea of the dendritic structure to occur which, in turn, implies chemical inertia of the metal construction to the organic medium of the mouth. A number of melting, homogenizing and aging tests showed the optimal regimen for bringing an Ag-Pd alloy to the level of hardness of the tooth enamel (about 330 HV 0.1) to consist of a technological treatment involving the following procedures: casting at 1100--1150 degrees C, homogenization at 850 degrees C, quenching in water and 20-min precipitation at 350 degrees C.

3. Tihaček L, Stamenković D. [Anatomical and histological characteristics of proximal surfaces of abutment teeth]. Acta Stomatol Croat. 1989;23(2):121-6.
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   Title in English:	Anatomical and histological characteristics of proximal surfaces of abutment teeth
   Title in Croatian:	Anatomske i histološke karakteristike aproksimalnih površina retencionih zuba
   Type of Article:	original scientific paper
   MeSH:	DENTURE, PARTIAL DENTAL ABUTMENTS DENTAL PROSTHESIS RETENTION
   Abstract:	When the guide planes are formed on the proximal surfaces of abutment teeth the part of enamel is removed. Thickness of enamel and inclination of tooth are the factors that limit the possible tooth reduction. In this report anatomical and histological characteristics of proximal surfaces of the abutment teeth are analysed. Thickness of the enamel has been measured using the optical microscope for 280 prepared teeth. Measurements were performed on four zones of tooth's proximal surfaces, on the different distances from the top of enamel edge. Undercut of 420 proximal surfaces of tooth have been determined by micro-analyser with accuracy of 0.05 mm. By comparing the mean values of enamel thickness, in occlusal thirds, and undercut of proximal surfaces, it is possible to conclude that the formed guide plane remains in the enamel even after the removing of all natural undercuts.

4. Nastić MM. [Changes of the retentional forces ceka intraoral anchors caused by the repeated removals]. Acta Stomatol Croat. 1989;23(2):127-36.
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   Title in English:	Changes of the retentional forces ceka intraoral anchors caused by the repeated removals
   Title in Croatian:	Promene retencione sile ceka intrakoronarnih sidara izazvane višestrukim razdvajanjem patrice i metrice
   Type of Article:	original scientific paper
   MeSH:	DENTURE, PARTIAL DENTAL ABUTMENTS DENTAL PROSTHESIS RETENTION
   Abstract:	A retainer should provide force capable of securing the position of the partial denture an still not damaging the periodontium of the abutment teeth. It's almost generally accepted that the retentional force should not be greater than 10N nor weaker than 5N. This study was designed to measure the forces required to disconnect parts of CEKA intracoronal anchors initially and repeatedly up to 50000 cycles. The results are compared with suggested values. It was found that the initial force exceeded 10N. After repeated removals retentional force decreased, but never under values of 5N.

5. Čelebić A, Kraljević K, Valentić-Peruzović M, Živković Ž, Stipetić J. [The angle between the occlusal plane and the horizontal plane of the articulators with the quick mounting face bow]. Acta Stomatol Croat. 1989;23(2):137-43.
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   Title in English:	The angle between the occlusal plane and the horizontal plane of the articulators with the quick mounting face bow
   Title in Croatian:	Nagib protetske plohe u odnosu na horizontalu artikulatora s obraznim lukom za brzu montažu
   Type of Article:	original scientific paper
   MeSH:	DENTAL ARTICULATORS JAW RELATION RECORD DENTAL OCCLUSION
   Abstract:	Correct determination of the occlusal plane is important for estetic, phonetic and masticatory function of the denture. As many different criterias are used in clinical practice to determine the occlusal plane on the wax rims, the aim of this study was to find the angle between the occlusal plane and the horizontal plane in the articulators with the quick mounting face bow. The measurements were made on the casts of 30 eugnath individuals with at least 28 natural teeth, mounted in S.A.M. articulator through the transfer with the Quick mounting face bow, in the position of maximum intercuspation. Measurements were made with a precise caliper and were transferred to the calibrated paper. The angles were measured between the occlusal plane and the horizontal plane. The angle is 9.42 degrees +/- 4.1 degrees in the population of this country. This result can be helpful to determine the occlusal plane or to control if the occlusal plane, determined by the other methods is in the correct position in articulator.

6. Šutalo J, Meniga A, Pichler G, Fijan D. [Analysis of spectral distribution of some commercial light sources for curring composite resins]. Acta Stomatol Croat. 1989;23(2):145-50.
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   Title in English:	Analysis of spectral distribution of some commercial light sources for curring composite resins
   Title in Croatian:	Analiza spektralne raspodjele nekih komercijalnih svjetlosnih izvora za polimerizaciju kompozitnih materijala
   Type of Article:	original scientific paper
   MeSH:	COMPOSITE RESINS SPECTROPHOTOMETRY
   Abstract:	Analysis of spectral distribution of four commercial light sources for polymerisation of light cured composite materials is presented. Particular attention is paid to the valve lengths about 400 nm, as a critical area responsible for the possible eye damages.

7. Vojinović J, Yoshida S, Anđelić P, Pintarić J, Tatić E. [Experimental testing upon the effects of organic fluorides in the gingival inflamation prevention]. Acta Stomatol Croat. 1989;23(2):151-8.
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   Title in English:	Experimental testing upon the effects of organic fluorides in the gingival inflamation prevention
   Title in Croatian:	Eksperimentalno ispitivanje mogućeg mehanizma dejstva organskih fluorida u prevenciji inflamacije gingive
   Type of Article:	original scientific paper
   MeSH:	FLUORIDES PERIODONTAL DISEASES + prevention & control GINGIVITIS
   Abstract:	The possible mechanismus of Aminfluoride action in the inhibition of plaque maturation is presented in the paper. Experiment was performed on dogs during the eruption of permanent molars. Experimental side was brushed with Aminfluride gel and control without any paste during 5 weeks. The groove in the enamel representing a border between supra and subgingival surface was prepared. The enamel was investigated by means of electron probe for elements Ca, P and F. The presence of fluoride in the surface layers was determined on the experimental side supragingivali and subgingivali till the depth of 500 in the sulcus. A release of fluorides from these deposits could be responsible for detoriation of plaque maturation and gingivitis prevention.

8. Srkoč O, Bajan M, Stilinović D. [A contribution to the etiology of nursing caries]. Acta Stomatol Croat. 1989;23(2):159-65.
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   Title in English:	A contribution to the etiology of nursing caries
   Title in Croatian:	Prilog etiologiji cirkularnog karijesa
   Type of Article:	original scientific paper
   MeSH:	DENTAL CARIES + etiology BOTTLE FEEDING BREAST FEEDING
   Abstract:	Some etiological factors believed to play a role in the genesis of nursing caries (i. e. prolonged bottle-feeding, prolonged breast feeding, illnesses, drug intake and hospitalization) were analyzed and evaluated. A group of 179 pre-school children with a clinical picture of nursing caries were examined. Prolonged bottle--and breast-feeding were recorded in 54% and 72% of the children, respectively. Allergy, respiratory, infections and other diseases were observed in 71% of the children. Drugs were frequently taken by 57%, and hospitalization was recorded in 32% of the children examined. Prolonged bottle- and breast-feeding were found to significantly influence the occurrence of nursing caries (p less than 0.001.) No significant relationship was found between illnesses, drug usage or hospitalization, and the occurrence of nursing caries. The prevalence of nursing caries as assessed in a sample of the children from Zagreb was 15%.

9. Cekić-Arambašin A, Đurčević-Matić A. [Oral lichen ruber]. Acta Stomatol Croat. 1989;23(2):167-74.
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   Title in English:	Oral lichen ruber
   Title in Croatian:	Oralni lihen ruber
   Type of Article:	review
   MeSH:	LICHEN PLANUS MOUTH DISEASES MOUTH MUCOSA + pathology
   Abstract:	As oral lichen ruber is quite frequently encountered in contemporary man, dental physicians should be familiar with the characteristics of the disease. Regardless of various forms of the disease, clinical features of lichen ruber may help in making the diagnosis. Recent research on the pathogenesis of the diseases has pointed to a local immune response. An individual diagnostic and therapeutic approach has been imposed by the complex etiology of the disease. In therapy, antimicrobial agents have resumed their place, along with the use of vitamins.

10. Rajić A, Džingalašević G. [Autistic children and dental care]. Acta Stomatol Croat. 1989;23(2):175-83.
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    Title in English:	Autistic children and dental care
    Title in Croatian:	Dječji autizam i stomatološka zaštita
    Type of Article:	professional paper
    MeSH:	AUTISM DENTAL CARE FOR HANDICAPPED
    Abstract:	The problems encountered with autistic children in dental office are presented. Following a review of autism in the light of the development of such a child, the treatment of autistic children within dental prevention and in the office is described in detail. Activities during an academic year are tabularly presented, showing that collaboration between the Dental Office for Retarded Children and Center for Autism resulted in a decreased prevalence of caries in the total KEP from 3.3 to 1.3, i. e. the percentage of successfully treated teeth increased by 190%; the primary dentition kp had been 3.3 per child without any treatment, whereas after a year 2.4 teeth per child were successfully treated. Thus, a combined treatment, provided by a dental team and a pedopsychiatric team together, can obviously result in good rehabilitation of oral health in autistic children.