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RESTORATIVE MATERIALS
This document discusses restorative materials used in pediatric dentistry. It defines restorative materials as synthetic components that can repair or replace tooth structure. Ideal materials should be biocompatible, restore aesthetics, maintain strength, prevent microleakage, bond permanently, and promote tissue repair. The document discusses various temporary and permanent restorative materials like glass ionomer cement, composite resin, amalgam, pit and fissure sealants, and stainless steel crowns. It provides the advantages and disadvantages as well as indications for use of each material in restoring primary and young permanent teeth in children. Selection of the appropriate material depends on factors like the child's age, caries risk, tooth type, and cooperation level.
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RESTORATIVE MATERIALS
- 1. RESTORATIVE MATERIALS IN PEDIATRICDENTISTRY DR.VIGNESH R, BDS
- 2. DEFINITION • Synthetic componentsthat can be used to repair or replace tooth structure (ANUSAVICE)
- 3. IDEAL REQUISITES • Bebiocompatible • Should restore aesthetics • Maintain the physical strength of crown • Preserve the occlusal anatomy and intercuspal relation • Prevent micro leakage • Bond permanently to tooth • Be capable of initiating tissue repair and regeneration
- 4. Materials Used • Temporaryrestorative materials • Glass Ionomer cements & modifications of GIC • Silver Amalgam • Compomer • Composite resin • Pit and fissure sealants • Resin-strip crowns with composite resins • Stainless steel crowns
- 5. Base materials • ZincOxide-Eugenol Cement • Calcium hydroxide • Zinc phosphate cement • Glass Ionomer
- 6. Selection criteria • Ageof the child • Caries risk • Type of tooth • Size and shape of cavity • Nature of the child
- 7. Amalgam Advantages • Simple • Quick •Economic • Technique sensitive • Durable
- 8. Silver Amalgam Disadvantages • Notadhesive • Requires mechanical retention • Loss of sound tooth structure • Environmental and occupational hazards
- 9. INDICATIONS OF SAIN PEDIATRIC DENTISTRY • Restoration of primary posterior teeth (Class II) • Children at moderate caries risk and not totally cooperative • Limited indication in Class I • Restoration of young permanent posterior teeth
- 10. Composite resin Merits • Adhesive •Aesthetic • Reasonable wear properties • Command set
- 11. Composite Resin(Bowen 1963) Demerits •Technique sensitive • Rubber dam • Expensive • Polymerization shrinkage
- 13. INDICATIONS OF COMPOSITES •Restoration of primary molar (Class I) • Moderately durable in Class II • Restoration of young permanent anterior teeth.
- 15. Glass Ionomer Cement (Wilson& Kent 1972)
- 17. GIC Merits • Adhesive • Aesthetic •Fluoride leaching • Minimal cavity preparation • Biocompatible • Act as fluoride reservoir • Modifications available for every specific purpose
- 18. GIC Demerits • Brittle • Susceptibleto wear and erosion • Technique sensitive • Reduced compressive strength
- 19. INDICATIONS • Material of`choicefor restoration of primary posteriors • Small occlusal and inter proximal cavities in permanent teeth • For luting crowns • As fissure sealants • Metal modified as crown build up • As base material under composite restorations • For orthodontic bonding
- 24. Resin-modified GIC Merits • Adhesive •Aesthetic • Command set • Simple to handle Demerits • Water adsorption • Significant wear
- 27. Resin modified GIC-Indications
- 29. Compomer Merits • Adhesive • Aesthetic •Command set • Simple to handle • Radio-opacity Demerits • Technique sensitive • Less fluoride release
- 30.
- 31. Pit and Fissuresealants
- 32. Pit and fissuresealants
- 33. Stainless steel crowns Merits •Very durable • Protect and support Demerits • Extensive tooth prep • Patient cooperation • Unaesthetic
- 35. INDICATIONS OF SSCROWNS • Grossly broken-down teeth • Primary molars that have undergone pulp therapy • Hypo plastic primary or permanent teeth • Dentitions of children at high risk of caries, particularly those having treatment under G.A
- 36. RESIN-STRIP CROWNS • Materialof choice for primary anterior teeth
- 37. •Strip crown +Composite = Aesthetics
- 38.