Stainless steel crowns Flashcards
Indications for the use of SSC
Caries involving two or more surfaces after pulp therapy Restoration of teeth with developmental defects Restoration of fractured teeth As an abutment for space maintainers In children with bruxism
Contraindications of the use of SSC
Known nickel allergy
teeth close to exfoliation
caries beneath the level of the bone
infection associated with the tooth
Conventional use of SSC
Caries removal, complete pulp therapy if necessary and then proceed with crown preparation
Occlusal reduction 1 - 1.5 mm
Interproximal reduction with a smooth feather edge. Not over tapered
Remove any buccal/lingual bulbosities if required. reductions must end in a feather edge
Cementation of SSC
Aquacem - GIC based cement
Reinforced zinc oxide eugenol
Where should an SSC finish
1 mm below the gingival margin
Post op instruction
No sticky foods and to return if the SSC is lost
Problems with SSC
Space loss may occur
iatrogenic damage to adjacent teeth
Distal margin of E may prevent the 6 for erupting
What is the Hall technique
SSC is placed without any tooth preparation. There is no caries removal and no irreversibly inflammed pulp, with sufficient tooth tissue
Paper to quote for the use of Halls crowns
Innes et al 2007. A randomised control trail which showed the Hall technique was preferred to conventional restorations by the majority of children, carers and GDPs. After two years, Hall crowns showed more favourable outcomes for pulpal health and restorations longevity than conventional restorations
Does the Hall technique work?
Yes. At 60 months, sealing in caries by the Hall technique statistically and clinically significant outperformed the GDPs standard restorations. Innes et al 2011, sealing caries in primary molars; randomized control trail 5-year results
