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DENTAL MATERIALS AND TECHNOLOGY Filling materials and adhesive technologies Dental cements and endodontic materials Dr. Zsolt Zalai. The aims of filling a teeth. to repair the shortage of substance to restore the masticatory function suitable anatomic form aesthetics.
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DENTAL MATERIALS AND TECHNOLOGYFilling materials and adhesive technologiesDental cements andendodonticmaterialsDr. Zsolt Zalai
The aims of filling a teeth • torepairtheshortage of substance • torestorethemasticatoryfunction • suitableanatomicform • aesthetics
The idealfillingmaterial • no irritationagainstthepulportheperiodontalattachment • minimalabrasion • protectsthepulpagainstheat, physical and chemicaleffects • cariesprotectiv • minimalsettingcontraction and expansion • aesthetics (colour, transparency) • chemical and physicalcontacttotheenamel/dentin • simplyapplication • cheap
Classification • Aims of using • Basefillings • Temporaryfillings • Permanentfillings • Plastic • Inlay
Fillings • Plastic • amalgam • cements • composite • Inlays • metallic • ceramic • metallo-ceramic • composite
Amalgam Content: liquidmercury and an alloypowder of mostlysilver, and somecopper Advantage: easytoadapttocavitywalls longlasting lowercosts Disadvantage: no protectionagainstheat notaesthetic corrosion no chemicaladhesionbetween theteeth and amalgam settingexpansion (0.2%)
Cements Cementscan be classifiedbasedonthetype of theirmatrix: Phosphate Polycarboxylate (zincpolycarboxylate, glassionomer) EBA Resin Indications: crown, bridge, inlaycementation corebuild-ups post cementation base and liningmaterial temporaryfillings semi-permanentfillings
GIC Sealing of pits and fissures
Composite fillings Advantages chemicaladhesiontothesurface of theenamel and dentine widerange of toothcolours-aesthetics suitableforMinimallyInvasivedentistry require less removal of toothstructure less sensitiveto hot and cold Disadvantages technique-sensitive expensive shrinkage (1,5-3%)
How to make a composite filling? Choosecolour Anesthesia Cleanthecavity Isolation Desinfection Lining Useadhesive Polimerization of theadhesive Placethematerial Polimerization of thecomposite Finishing, polishing Checktheocclusion
phosphoric acid Matrix band
Root canal treatment Removing the caries and opening the teeth Removing the pulp chamber Cleaning the root canal with files, solutions Dried with paper points Filling with gutta percha
Materials • Pointor stift • Thisgivesthecore of therootcanalfilling • Sealer • This is a pastetypematerialweusetofillthegapbetweenthepoint and thecanalwall • Can be usedas a temporaryfilling
Points • Metal points • Silver • Titanium • Theywereusedinthepast, nowadayswemainlyuse • Guttapercha • Rubbertypematerial • Differenttypesfordifferentsystems
Sealers • Cink-oxid-eugenol (Tubliseal, Endoseal) • Poli-keton (Diaket) • Epoxi-resin (AH26, AHPlus) • Glassionomer (Ketac-Endo) • Dentinadhesive (Epiphany) • Formaldehid asingredient (Endomethasone, N2) • Materialscontainingmedicaments (CRSC, Sealapex, Apexit)
Root filling by lateral condensation Spreader Accesoric point Master point
Endodontictreatment Opening the teeth Including:Blood vessels, nerves, pulp tissues