Stainless Steel Crowns Flashcards
What are the indications for stainless steel crowns?
Extensive caries on primary teeth leading to pulpotomy
Caries involving 3 or more surfaces
Rampant caries
Hypomineralised or hyperplastic molars.
Other enamel defects like amelogenesis imperfecta and dentinogenesis
imperfecta
Severe damage due to bruxism
Temporary restorations following developmental defects or immature molars following endodontic treatment
For children unlikely to come back to another appointment
How can space be created for placement of a stainless steel crown?
Contact points can be wedged using a wooden wedge moving the teeth apart with the elasticity of gingival tissue.
How should the tooth be prepared for a crown?
Occlusal reduction should be done by 1.5mm to provide clearance for the crown occlusally.
Reduce the crown proximally
Buccal and lingual surfaces should not be cut because they provide retention.
Occassionally it is necessary on the buccal side.
Ensure rounding the sharp edges
Retention is achieved from the overhanging enamel created in the preparation because the stainless steel crown hugs the tooth from the top.
How are stainless steel crowns chosen?
Preformed crowns can be bought but they can also be trimmed and contoured.
What is the Hall technique?
No preparation, Crown just put over the tooth and is used for carious teeth where there is no cooperation from the patient.
What are the indications for the hall technique?
No clinical/radiographical signs of pulpal involvement
Tooth should have sufficient sound tissue to retain the crown
Patient cooperation with no issues
How is the Hall technique done?
Check for adequate space and use orthodontic separators and then place then leave for 3 - 4 days.
What are the problems with the hall technique?
Aesthetic problems due to being metal and silver in colour.
Debater regarding leaving caries.
What is the success rate like on the hall technique?
Pretty high
