Browsing of Articles

1. Kqiku L, Weiglein A, Städtler P. A Comparative Study of Five Different Obturation Techniques. Acta Stomatol Croat. 2006;40(1):3-11.
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   Title in English:	A Comparative Study of Five Different Obturation Techniques
   Title in Croatian:	Usporedno istraživanje pet različitih tehnika punjenja korijenskih kanala
   Type of Article:	original scientific paper
   MeSH:	ROOT CANAL FILLING MATERIALS ROOT CANAL OBTURATION + methods GUTTA-PERCHA RADIOGRAPHY
   Abstract:	The aim of the study was to evaluate the adaptation and quality of root fillings achieved by the lateral condensation, vertical condensation, Thermafil, Ultrafil and Obtura II techniques. Seventy-five straight and curved root canals of extracted human teeth were prepared according to the crown-down / step-back technique using 3% sodium hypochlorite. Apical patency was verified with a size 15 K-file and five groups of 15 root canals were formed for the different obturation techniques. Roekoseal Automix was used as sealer in all cases. Teeth were radiographed for overall material adaptation and filling material extrusion. There were no significant differences in the overall canal obturation and radiographic density and adaptation to canal walls. All thermoplastic obturation techniques demonstrated acceptable root canal filling and sealed well with no statistically significant difference between them and in comparison to lateral condensation. Root canal fillings were radiographically dense and well adapted throughout the entire root canal system.

2. Buneta Jurić L, Jurić H, Tambić Andrašević A, Škaljac G, Miletić Karlović I, Anić I. Antimicrobial Effect of Different Intracanal Dressings in Endodontic Treatment. Acta Stomatol Croat. 2006;40(1):12-8.
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   Title in English:	Antimicrobial Effect of Different Intracanal Dressings in Endodontic Treatment
   Title in Croatian:	Antimikrobni učinak različitih medikamentoznih uložaka tijekom endodontskog liječenja
   Type of Article:	original scientific paper
   MeSH:	ROOT CANAL THERAPY PSEUDOMONAS AERUGINOSA STAPHYLOCOCCUS AUREUS CANDIDA ALBICANS ANTIBACTERIAL AGENTS
   Abstract:	The effect of five intracanal dressings, calcium hydroxide, chlorhexidine gluconate (1% gel and 0.2% solution), camphorated parachlorphenole and 1% metronidazole was tested in vitro in four media. The canals of 40 test teeth were artificially infected with Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans. Significant differences were observed between five intracanal dressings regarding the number of P. aeruginosa after 3 and 7 days (p < 0.05) and C. albicans after 3 days (p < 0.05). Specimens with calcium hydroxide and camphorated parachlorphenole have significant antibacterial efficacy. Camphorated parachlorphenole has significantly reduced the number of all tested microorganisms P. aeruginosa and C. albicans after 3 and 7 days in comparison with other materials (p < 0.05). Calcium hydroxide has shown similar effect on P. aeruginosa as camphorated parachlorphenole regarding the efficacy after 3 days (p < 0.05). Chlorhexidine gel has shown the weakest efficacy on P. aeruginosa after 3 days, compared to all tested materials, but its antibacterial efficacy after 7 days was statistically greater compared to other materials (p < 0.05), except for camphorated parachlorphenole. All tested materials had good antimycotic efficacy against C. albicans except metronidazole that, as was expected, had no efficacy against yeast (p < 0.05). We can conclude that the antibacterial efficacy of chlorhexidine gel is enhanced with time, while camphorated parachlorphenole and calcium hydroxide have fastest and strongest antimicrobial efficacy.

3. Jukić Krmek S, Mihaljević D, Simeon P, Karlović Z. Measurement of the Root Canal Lenght by Endometers ES-02 and ES-03. Acta Stomatol Croat. 2006;40(1):19-27.
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   Title in English:	Measurement of the Root Canal Lenght by Endometers ES-02 and ES-03
   Title in Croatian:	Mjerenje radne duljine korijenskog kanala endometrima
   Type of Article:	original scientific paper
   MeSH:	ROOT CANAL PREPARATION TOOTH APEX ROOT CANAL THERAPY SODIUM HYPOCHLORITE CHELATING AGENTS
   Abstract:	The aim of this study was to compare the accuracy of measurements of endometers ES-02 and ES-03 in dry canals and canals filled with sodium-hypochlorite and ethylenediaminetetraacetic acid (EDTA).For the experiment 31 one-rooted human extracted teeth were used. Working length of the root canal was determined visually using a #15 reamer as a control measurement. After that the teeth were embedded in vial with freshly mixed alginate and the measurements were made with both devices. Two measurements were made in dry canal and canal filled with sodiumhypochlorite and EDTA for each device. The first value was the working length determined according to the sign -1,0 on the scale and display, respectively, which corresponds to the apical constriction. The second value was measured according to the sign 0,0 which corresponds to the external foramen. Results were analyzed statistically by MANOVA test, and as post-hoc test Student-t test was used. The measurements same as control were in 65% for ES-02 device, and 61%, for ES-03 device at point -1,0 in dry canal, although the difference was not statistically significant. Fluids in root canal statistically significant negatively influence on accuracy of measurements but that significance was 10 times greater at point of measurement -1,0 than at 0,0.

4. Katić D, Miletić Karlović I, Karlović Z, Janković B. Leakage of Different Canal Obturation Techniques. Acta Stomatol Croat. 2006;40(1):28-34.
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   Title in English:	Leakage of Different Canal Obturation Techniques
   Title in Croatian:	Propusnost ispuna korijenskih kanala kod različitih tehnika punjenja
   Type of Article:	original scientific paper
   MeSH:	ROOT CANAL OBTURATION + methods DENTAL LEAKAGE
   Abstract:	The aim of this study was to assess leakage of root canals obturated using different techniques: cold lateral condensation, warm lateral condensation (Touch’n Heat) and Thermafil. The experimental sample had 70 single rooted permanent teeth. Root canals were instrumented using step-back technique. The teeth were randomly assigned to three groups of 20 samples and obturated using experimental techniques. Ten samples were used as control samples. After a fifteen-day setting period in sterile saline, the samples were taken out, dried, covered by insulating varnish and placed in test-tube with dye. After seven days, the samples were subjected to demineralisation in nitrogen acid, dehidration in ethanol and submerged in methyl- silicilate, thus rendering them transparent. Dye penetration was then read using stereomicroscope. The results were processed by two-way analysis of variance with LSD post hoc test. The results indicate significantly lower dye-penetration in samples obturated using Touch’n Heat technique (0.63±0.35mm) and Thermafil (0.71±0.57mm), when compared to the sample obturated using cold lateral condensation (1.31 ±0.75mm).

5. Ćelić R, Jerolimov V, Pandurić J, Haban V. Depression and Somatization in Patients with Temporomandibular Disorders. Acta Stomatol Croat. 2006;40(1):35-45.
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   Title in English:	Depression and Somatization in Patients with Temporomandibular Disorders
   Title in Croatian:	Depresija i somatizacija u pacijenata s temporomandibularnim poremećajima
   Type of Article:	original scientific paper
   MeSH:	TEMPOROMANDIBULAR JOINT DISORDERS + therapy DEPRESSION SOMATOFORM DISORDERS
   Abstract:	Studies have indicated that patients with TMD demonstrate increased somatization, stress, anxiety, depression.A consistent relationship has been demonstrated among anxiety, general somatic complaints, and TMD-related pain. The aims of this study were to determine the differences in depression and somatization scores in patients in different RDC/TMD axis I diagnostic groups and to investigate the role of psychological factors (depression and somatization) in TMD. One hundred fifty- four patients (37 male and 117 female; mean age, 39.0 ± 14.5 years) with RDC/ TMD-defined clinical TMD were selected. Patients were subsequently classified into 7 groups based on the presence of the various RDC/TMD axis I diagnostic groups. Differences in mean SCL-90 depression and somatization scores between the diagnostic groups were compared by one-way analysis of variance and Scheffé post hoc tests at a significance level of 0.05. The frequencies of the different diagnostic groups were as follows: group 1 (muscle disorders, MD), 35.7%; group 2 (disc displacement, DD), 18.2%; group 3 (arthralgia, arthritis, arthrosis, AAA), 7.8%; group 4 (MD+DD), 9.1%; group 5 (MD+AAA), 13.0%; group 6 (DD+AAA), 9.1%; group 7 (MD+DD+AAA), 7.1%. The majority of patients had one diagnosis (61.7%) while the remaining patients experienced two or more diagnoses (38.3%). About 19.5% of TMD clinical patients yielded severe depression scores, and 27.3% experienced severe levels of non-specific physical symptoms scores. Only 6 patients (21.4%) had high disability with moderate and severe limitations (psychosocially dysfunctional patients). Patients diagnosed with myofascial pain and arthralgia (group 5 and 7) had significantly higher levels of depression and somatization than patients diagnosed with only disc displacements (group 2). These data mandate that screening and treatment for depression and somatization should be an integral part of the evaluation and management of patients with TMD.

6. Badel T, Pandurić J, Marotti M, Krolo I. Clinical Investigation of Temporomandibular Joint Arthrosis Frequency in Young Males. Acta Stomatol Croat. 2006;40(1):45-55.
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   Title in English:	Clinical Investigation of Temporomandibular Joint Arthrosis Frequency in Young Males
   Title in Croatian:	Klinička studija učestalosti artroze čeljusnog zgloba u mlađih muškaraca
   Type of Article:	original scientific paper
   MeSH:	TEMPOROMANDIBULAR JOINT DISORDERS + epidemiology
   Abstract:	Aim of this study was to investigate the frequency of symptoms, clinical signs and diagnosis of temporomandibular joint (TMJ) arthrosis in relation to loss of lateral teeth in the population of young males. Hundred and ninety recruits of the Croatian Army, aged 19 to 27 years were clinically examined. Crepitation and pain in TMJ was examined by manual functional analysis. The mandibular excursion was measured by caliper, and loss of lateral teeth by Eichner’s classification. The reliability of clinical diagnostic was crosschecked by means of magnetic resonance. Crepitation in TMJ was observed in 8.9% of the subjects. Osteoarthrosis was determined in 3.6% and osteoarthritis in 3.2% of the subjects. Spearman’s coefficient of correlation rank was significant for following variables: crepitation and pain p < 0,01; clinical signs and: - pain p < 0,01, - crepitation p < 0,01, - reduced movement of the mandible p < 0,01, - osteoarthrosis p < 0,05, - osteoarthritis p < 0,05 and reduced movement of mandible and pain p < 0,01. Eichner’s classification does not show significance in relation to clinical signs of TMJ arthrosis. Frequency of clinical signs of arthrosis in recruits is low as well as the need for treatment.

7. Mehulić K, Čvrljak-Tomić I, Schauperl Z, Komar D. Wear Characteristics of Esthetic Prosthetic Materials. Acta Stomatol Croat. 2006;40(1):56-64.
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   Title in English:	Wear Characteristics of Esthetic Prosthetic Materials
   Title in Croatian:	Tribološka svojstva estetskih protetskih materijala
   Type of Article:	original scientific paper
   MeSH:	DENTAL RESTORATION WEAR DENTAL MATERIALS CERAMICS POLYMERS
   Abstract:	Knowledge of wear characteristics of esthetic prosthetic materials is essential in everyday dental practice. To establish a new, original, method and produce a device for examining wear characteristics of constructive prosthetic materials, to assess the wear characteristics of different esthetic prosthetic materials and to examine the relationship in a wear pair: natural tooth - prosthetic material. The study was performed on a modified device Taber abraser on samples of six different esthetic prosthetic materials. The wear is smallest for samples of alumina ceramics (Creation and d.Sign), and greatest for polymer (Chromasit) and ceromer material (Targis). The smallest wear factors were established for alumina ceramics as well. The study has resulted in the development of a new method and new device for examining the wear characteristics of prosthetic materials.

8. Jakovac M, Živko-Babić J, Ćurković L, Carek A. Chemical Durability of Dental Ceramic Material in Acid Medium. Acta Stomatol Croat. 2006;40(1):65-71.
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   Title in English:	Chemical Durability of Dental Ceramic Material in Acid Medium
   Title in Croatian:	Kemijska postojanost dentalnih keramika u kiselom mediju
   Type of Article:	original scientific paper
   MeSH:	DENTAL RESTORATION WEAR DENTAL MATERIALS CERAMICS
   Abstract:	Dental materials need to be thoroughly examined in order to assess their long-term therapeutical value. Chemical degradation of dental ceramic material enhances its roughness, leading to the wear of the opposing natural tooth or restorative material, greater plaque attachment to ceramics, weakening of the ceramic structure causing the critical ion exchange at the surface and enhancing the sensitivity to future chemical agents. The aim of this study was to test loss of mass in samples of four different dental ceramic materials in an acid medium. The least mass loss was recorded in apatite glass ceramic (IPS-Empress 2 for layering) (4.9±0.3 μg/cm2), and most mass loss was recorded in alumina ceramic (Vitadur alpha) (15±0.2 μg/cm2). Lithium disilicate glass ceramic (IPS-Empress 2 for coloring) and alumina (IPS-Classic) showed very similar results (9.4±3.4 μg/cm2 and 10.1±0.3 μg/cm2). The values of mass loss in samples in this work, as well as in the most of the literature, are minimal and presumably do not have any clinical or toxicological effects. However, it does not imply that these values can be generalized and transferred to dental ceramic materials that were not yet analyzed.

9. Lončar A, Vojvodić D, Komar D. Fiber-Reinforced Polymers: Part I: Basic and Construction Problems. Acta Stomatol Croat. 2006;40(1):72-82.
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   Title in English:	Fiber-Reinforced Polymers: Part I: Basic and Construction Problems
   Title in Croatian:	Vlaknima ojačani polimeri: Prvi dio: osnove i problematika izgradnje
   Type of Article:	review
   MeSH:	COMPOSITE RESINS POLYMERS SILANES
   Abstract:	This article reviews the fracture problems of polymer materials for removable prostheses and the need for its reinforcement. The historical development of different attempts to strengthen the polymers all the way to the fiber-reinforcements is presented. Different materials can be used for polymer reinforcements: carbonated, aramidic, polyethylene and glass fibers, which are today most frequently used, creating composite materials with enhanced properties. Main features of the fibers in composites are greater rigidity and strength while the matrix provides the protection of the fibers as well as their position that gives the composite material the best properties. The border between the fiber and the matrix is somewhat dubious in a sense that there are often microfractures, caused by inclusion of air or impurities during the production process of composites that can weaken the mechanical properties of the material. Treating the fiber surface with adhesive agents, especially silanes, in order to enhance the grip between the fibers and polymer matrix, enhances the quality of the border.

10. Knežević B, Knežević P, Uglešić V, Zubčić V. Facial Bite Wound. Acta Stomatol Croat. 2006;40(1):83-8.
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    Title in English:	Facial Bite Wound
    Title in Croatian:	Ugrizna rana lica
    Type of Article:	case report
    MeSH:	BITES AND STINGS WOUND INFECTION BACTERIAL INFECTIONS
    Abstract:	Bite wounds are one of the most frequent human traumas. Most frequently it is the dog bites (more than 80%), cats, and humans. Great percentage of these traumas is located on the face, especially in children. Most frequently isolated bacteria in the wounds are aerobes and anaerobes from the oral flora of the attacker and aerobes from the victim’s skin. The treatment of facial bite wounds has its characteristics when compared to other body parts, in that they are primarily sutured. Due to the excellent vascularity the complications are rare, but if they occur, they can be life threatening. This article reports an infection of a facial bite wound caused by horse bite and the treatment of subsequent complications.