ternopil state medical university named by i. horbachevskyj department of therapeutic dentistry...
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Ternopil State Medical Ternopil State Medical University named by I. HorbachevskyjUniversity named by I. Horbachevskyj
Department of Department of Therapeutic DentistryTherapeutic Dentistry
Topic: Topic: Filling materials for permanent and temporary Filling materials for permanent and temporary fillings and linings. General requirements. Classification. fillings and linings. General requirements. Classification. Modern filling materials (cements, amalgam, composite Modern filling materials (cements, amalgam, composite materials). Composition, properties. Indications for use.materials). Composition, properties. Indications for use.
Lecturer : Levkiv MarianaLecturer : Levkiv Mariana
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1. 1. Classification of filling materialsClassification of filling materialsDepending to which group the tooth belongs, Depending to which group the tooth belongs,
filling materials are distinguished:filling materials are distinguished:
For front group of teethFor front group of teeth For molars and premolarsFor molars and premolars
According to the material from which restorative materials are produced, they are divided into:
Metals : amalgam, alloys, pure metals (gold); Non metals: cements, plastic, composite materials.
According to the purposeFilling materials are divided for:
Permanent Permanent TemporaryTemporary
Light-curing composite filling materialLight-curing composite filling material
Therapeutic liningsTherapeutic linings
Calcium hydroxide cements
Zinc oxide/eugenol
cements
Objectives of pulp protection are as Objectives of pulp protection are as follows:follows: .
■ Therapeutic:Stimulate odontoblasts to lay down reparative dentine.Encourage remineralisation of dentine.Act against any remaining bacteria.
■ Protect from chemicals. These may come from the oral cavity, bacteria or from the restorative material.
■ Protect from temperature. Metal restorative materials, such as amalgam and gold, will transmit changes in temperature from the oral cavity and, in the absence of a suitable layer of dentine in deep cavities, additional protection must be provided.
■ Seal the dentinal tubules. This will prevent fluids containing bacteria, molecules and ions entering the dentinal tubules, and as a result prevent pain and possible further caries.
Materials for therapeutic Materials for therapeutic liningslinings
Methods of pulp protection
aa – – ‘indirect pulp capping’ bb - - ‘direct pulp capping’
Classification of cementsClassification of cements
Zinc-phosphate cements
Zinc-sulfate cements
Zinc-eugenol cements
Glass-ionomer cements
Poly-carboxylate cements
Zinc-phosphate cementZinc-phosphate cement
Mixing rules of phospate Mixing rules of phospate cementcement
Silicate cementsSilicate cements
Mixing rules for silicate cementMixing rules for silicate cement
Silico-phosphate cementSilico-phosphate cement
Poly-carboxylate cementPoly-carboxylate cement
Glass ionomers
Ready to use formulations of glass-Ready to use formulations of glass-ionomer cementionomer cement
Dental amalgamDental amalgam
Useage of silver amalgamUseage of silver amalgam:: а – а – amalgam is taken out from the capsuleamalgam is taken out from the capsule; ;
б, в, г – б, в, г – filling offilling of I, II I, II andand V V classes respectivelyclasses respectively
Amalgam without gamma-2 phase -Amalgam without gamma-2 phase -Sybraloy (Kerr)Sybraloy (Kerr)
AmalgamtreggersAmalgamtreggers
Instruments for placing amalgam into Instruments for placing amalgam into carious cavitycarious cavity
Finishing of amalgam fillingFinishing of amalgam filling
Composite materialsComposite materials
Macrofilled0,04 – 0,1 (8 – 12 мcм)
Microfilled0,04 – 0,1 –
1 – 5 (1 -5 мcм )
HybrideHybride( ( has macro- and has macro- and micro- particlesmicro- particles))
Nanohybride (has nano-particles –
0,0004 мcм)
Chemical cured compositeChemical cured composite
Light-curing unitsLight-curing units
Light-curing composite Light-curing composite materialmaterial
Conditioning of dentineConditioning of dentine
Dentine conditioning and adhesion. (a) Freshly cut dentine surface. (b) Conditioned dentine. (c) With bonding agent
applied.