Search

Summary Introduction Knowledge of biological and cultural heritage represents a significant basis for the advance of human civilization. The aim of this study was to determine and define dental health status of pre-historic people of the Vinca culture. Material and method Study included twenty skeleton remnants of different gender and age from anthropological series of Gomolava. Skeletons originated from one necropolis and two individual graves dating from mid and early Neolithic periods of the Vinca culture. Based on radiocarbon analysis absolute skeletal age was determined to date within the periods from 5848±38 to 5739±35 BC. Preservation of skeletons varied from completely preserved skulls and jaws to fragmented parts of jaws. Data analysis was performed with methodology used in the research of human population teeth and jaws from the Lepenski Vir culture. Results Results showed high level of teeth abrasion (98,1%), medium level of dental calculus deposits (44,9%), low level of tooth decay, significant number of retained roots, as well as the occurrence of periapical lesions and periodontal disease within the neolith population of Gomolava site. Conclusion Taking into account absolute age of examined skeletons, collected data are very significant, from the perspective of its wide content. From a pathological perspective, teeth abrasion stands out as a dominant feature, while tooth decay fits within standard values for human population of the neolith period.

Background: Premixedcalcium silicate-based sealers are ready-to-use, injectable materials with advantageous biological properties that create environment favorable for periapical tissues repair and health. The aim of our study was to examine the radiopacities of premixed calcium silicate-based sealers:TotalFill BCSealer, EndoSequence BC Sealer, Ceraseal, Bio-C Sealer and to compare them with epoxy-basedsealer, AH Plus. Material and methods: Three specimens (2 mm thick and 5 mm in diameter) of each sealer were radiographed using charge-coupled device-baseddigital sensor (Trophy Radiology, Cedex, France) along with an aluminum stepwedge reference.For radiopacity determination, a graph of the logarithm of aluminum thickness versus radiographic density was plotted and a calibration curve was generated. Radiopacities were assessed from the graph and presented as millimeters of aluminum per millimeter of material (mmAl).ANOVA with a post hoc Tukey test was used for statistical analysis and significance was set at 0.05. Results: Radiopacity values of EndoSequence BC Sealer and Bio-C Sealerwere significantly lower than radiopacities of Ceraseal and AH Plus. Differences in values between EndoSequence BC Sealer and Bio-C Sealer as well as between Ceraseal and AH Plus were nonsignificant. TotalFill BC Sealer was nonsignificantly different from all other sealers. Conclusion: Premixed calcium silicate-based endodontic sealers evaluated in our study had radiopacity values higher than 9 mmAl, in ascending order,from Bio-C Sealer, EndoSequence BC Sealer, TotalFill BC Sealer to Ceraseal.

Introduction Vascular network of dental pulp is supplied through common and external carotid artery and terminal dental branches that supply each pulp tissue. Age related changes of pulp tissue influence pulpal vascularization as well. The aim of this study was to compare and correlate pulpal and common and external carotid artery blood flow in young and middle age individuals of general population. Material and Methods Two groups of 10 participants were included in the study, young (20-25 years) and middle age (50-55 years) group. Pulpal blood flow (PBF) measurements on intact right and left upper central incisors were performed using laser Doppler flowmetry (LDF) method. Carotid arteries blood flow was assessed using carotid ultrasonography. Results PBF levels were significantly higher in young (3.11±0.67 and 3.46±1.11, right and left upper central incisors, respectively) compared to middle age (1.93±0.47 and 2.30±0.64, right and left upper central incisors, respectively) participants (independent sample t test; p Conclusion Absence of correlation between carotid arteries blood flow and PBF suggests that reduced PBF in middle age participants was probably not due to reduced blood supply from carotid arteries but it was result of age related changes at the level of pulpal blood vessels.

Introduction Calcium silicate cements can be successfully used for the treatment of root perforations due to their exceptional biological and sealing properties. The aim of this study was to test, using dye penetration method, marginal microleakage of newly synthesized nanostructured biomaterials based on calcium silicate system and hydroxyapatite after their application in interradicular perforation of extracted teeth. Material and Methods The study included 34 extracted human molars. Newly synthesized nanostructured materials: one based on calcium silicate system (CS), and the other one based on hydroxyapatite and active calcium silicate system (HA-CS) were tested. Mineral trioxide agreaggate (MTA; Angelus, Londrina, Brazil) was used as control. Marginal microleakage was evaluated using dye penetration test 6 months after the application of materials in experimentally prepared inter-radicular perforations in extracted human molars. Dye penetration was analyzed using light microscope at 30X magnification, a method of quantifying visual information in computer software for image processing (Adobe Photoshop CS5 Extended, version 12.0 x 32). The values were expressed in millimeters, and the results statistically analyzed using one-way ANOVA and Tukey post-hoc test (α=0.05). Results The shortest dye penetration was measured for calcium silicate system (0.44 mm), while slightly higher values were found for MTA (0.54 mm). Dye penetration for hydroxyapatite and active calcium silicate system (2.00 mm) was longer than for the other two materials (p lt 0.05). Conclusion The lowest marginal microleakage was observed in CS and was comparable to MTA. Microleakage in HA-CS was significantly higher than CS and MTA., Uvod Primena cemenata od kalcijum-silikata u lečenju perforacija korena zuba zasniva se na njihovim izuzetnim biološkim svojstvima i odgovarajućem rubnom zaptivanju. Cilj ovog rada bio je da se testom prodora boje ispita marginalna mikropropustljivost novosintetisanih nanostrukturnih biomaterijala na bazi kalcijumsilikatnih sistema i hidroksiapatita nakon primene materijala u interradiksne perforacije ekstrahovanih zuba. Materijal i metode rada Ispitivanje je realizovano na 34 ekstrahovana humana molara. Testirani su novosintetisani nanostrukturni materijali: materijal na bazi aktivnih kalcijumsilikatnih sistema (CS) i materijal na bazi hidroksiapatita i aktivnih kalcijumsilikatnih sistema (HA-CS). Kao kontrolni materijal korišćen je komercijalni kalcijumsilikatni cement (MTA Angelus, Londrina, Brazil). Marginalna mikropropustljivost je ispitivana testom prodora boje šest meseci nakon primene materijala u eksperimentalno preparisane interradiksne perforacije na ekstrahovanim humanim molarima. Prodor boje je analiziran svetlosnim mikroskopom na uveličanju od 30 puta metodom kvantifikovanja vizuelnih informacija kompjuterskim programom za obradu slike (Adobe Photoshop CS5 Extended, verzija 12.0x32). Dobijene vrednosti su izražene u milimetrima, a dobijeni rezultati statistički su obrađeni primenom jednofaktorskog testa ANOVA sa Tukijevim (Tukey) post-hoc testom (α=0,05). Rezultati Najmanji prodor boje izmeren je kod materijala CS (0,44 mm), dok su nešto veće vrednosti zabeležene kod MTA (0,54 mm). Prodor boje kod materijala HA-CS (2,00 mm) bio je značajno veći u odnosu na materijale CS i MTA (p lt 0,05). Zaključak Najmanja marginalna mikropropustljivost zabeležena je kod materijala CS i bila je komparabilna sa MTA. Mikropropustljivost materijala HA-CS bila je značajno veća u odnosu na materijal CS i kontrolni materijal MTA.