
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:title xml:lang="srp">Efekat trikalcijum silikatnog cementa (biodentina) na zarastanje humanih periapeksnih lezija nakon retrogradnog punjenja kanala korena zuba: klinička i eksperimentalna studija</dc:title>
  <dc:creator>Eraković,  Mile, 1978-, 65027593</dc:creator>
  <dc:description xml:lang="srp">U ovoj disertaciji je testirana originalna hipoteza po kojoj je trikalcijum silikatni cement, Biodentin, primenjen za retrogradnu opturaciju kanala korena zuba, efikasniji u zarastanju humanih periapeksnih lezija (PL) u odnosu na amalgam. Rezultati su potvrđeni u randomizovanoj kliničkoj studiji na 24 (Biodentin) odnosno 25 (amalgam) korena zuba. Eksperimentalna studija je
imala za cilj objašnjenje mehanizama kliničkih rezultata ispitivanjem citotoksičnosti, inflamacije,
imunomodulacije i osteogene diferencijacije mezenhimalnih stromalnih matičnih ćelija (MSC)
uspostavljenih iz PL. Iako je pokazano da je kondicionirani medijum (KM) Biodentina
citotoksičniji u odnosu na KM amalgama, necitotoksične koncentracije oba KM su inhibirale
produkciju proinflamacijskih citokina i hemokina (IL-1β, TNF-α, IL-6, IL-8 i MCP-1) od strane
infiltrišućih ćelija izolovanih iz PL. Međutim, za razliku od amalgama, necitotoksične
koncentracije KM Biodentina su pokazivale imunomodulacijski efekat (povećanje produkcije IL10, Th2 citokina i IL-17A) i osteoprotekciju (smanjenje nivoa RANKL i odnosa RANKL/OPG).
Analizom 9 osteblastnih gena (RUNX2, ALP, BGLAP, COL1A1, SP7, BMP2, TGF-β1, FGF2 i
WNT2) i Ca depozita pokazano je da KM Biodentina snažno stimuliše proliferaciju i osteoblastnu
diferencijaciju MSC u osnovnom medijumu i potencira osteoblastogenezu u prisustvu
osteoinduktivnog medijuma. Iako je KM amalgama stimulisao ekspresiju pojedinih osteoblastnih
gena, nije indukovao osteoblastnu diferencijaciju MSC. Zaključeno je da je stimulacijski efekat
Biodentina na regeneraciju koštanih i meko-tkivnih struktura nakon hirurškog tretmana PL povezan sa stimulacijom proliferacije i osteoblastne diferencijacije MSC kao i lokalnim antiinflamacijskim, imunomodulacijskim i osteoprotektivnim efektima.</dc:description>
  <dc:description xml:lang="eng">In this dissertation, the original hypothesis was tested according to which tricalcium silicate cement, Biodentine, applied for retrograde root canal filling, is more efficient in healing of human periapical lesions (PLs) compared to amalgam. The results were confirmed in a randomized
clinical study on 24 (Biodentine) and 25 (amalgam) tooth roots, respectively. The experimental study aimed to explain these mechanisms by examining cytotoxicity, inflammation,
immunomodulation, and osteogenic differentiation of mesenchymal stromal stem cells (MSCs)
established from PLs. Although the conditioned medium of Biodentine (B-CM) has been shown
to be more cytotoxic than CM of amalgam (A-CM), non-cytotoxic concentrations of both CMs
inhibited the production of proinflammatory cytokines and chemokines (IL-1β, TNF-α, IL-6, IL8, and MCP-1) by PL cells. However, in contrast to amalgam, non-cytotoxic concentrations of BCM showed immunomodulatory effects (increased production of IL-10, Th2 cytokines and IL17A) and osteoprotection (decreased RANKL levels and RANKL/OPG ratio). Analysis of 9
osteblastic genes (RUNX2, ALP, BGLAP, COL1A1, SP7, BMP2, TGF-β1, FGF2 and WNT2) and
Ca deposits showed that B-CM strongly stimulated the proliferation and osteoblastic
differentiation of MSCs in the basal medium and potentiated osteogenesis in the osteoinductive
medium. Although A-CM stimulated the expression of some osteoblastic genes, it did not induce
osteoblast differentiation of MSCs. It was concluded that the stimulating effect of Biodentine on
the regeneration of bone and soft tissue after surgical treatment of PLs is associated with the stimulation of proliferation and osteoblastic differentiation of MSCs as well as its local antiinflammatory, immunomodulatory and osteoprotective effects.</dc:description>
  <dc:description xml:lang="srp"></dc:description>
  <dc:contributor>Duka,  Miloš, 1961-, 2363751</dc:contributor>
  <dc:contributor>Lukić,  Aleksandra, 1946-, 12216167</dc:contributor>
  <dc:contributor>Mitrović,  Slobodanka, 1967-, 13571687</dc:contributor>
  <dc:contributor>Kanjevac,  Tatjana, 1963-, 4236391</dc:contributor>
  <dc:contributor>Jovanović,  Ivan, 1977-, 3999847</dc:contributor>
  <dc:contributor>Bubalo,  Marija, 1973-, 1646951</dc:contributor>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:date>2020</dc:date>
  <dc:type xml:lang="eng">baccalaureate Dissertation</dc:type>
  <dc:format>155 listova</dc:format>
  <dc:format>4224129 bytes</dc:format>
  <dc:identifier>o:1315</dc:identifier>
  <dc:identifier>ID=32456457 ; D-3398</dc:identifier>
  <dc:identifier>thesis:7904</dc:identifier>
  <dc:identifier>cobiss:32456457</dc:identifier>
  <dc:identifier>https://phaidrakg.kg.ac.rs/o:1315</dc:identifier>
  <dc:source>Thesis:7904</dc:source>
  <dc:source>Cobiss:32456457</dc:source>
  <dc:language>srp</dc:language>
  <dc:rights>CC BY-NC-SA 2.0 AT</dc:rights>
  <dc:rights>http://creativecommons.org/licenses/by-nc-sa/2.0/at/</dc:rights>
</oai_dc:dc>
