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| CD (MichaelBurov); crown-down preparation (MichaelBurov); crown down preparation (MichaelBurov); crown down (– the concept is to widen the root canal with burs or files to remove dentin hangover and widen the canal orifices MichaelBurov) | |||
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| CD (MichaelBurov); crown-down preparation (MichaelBurov); crown down preparation (MichaelBurov); crown down (– the concept is to widen the root canal with burs or files to remove dentin hangover and widen the canal orifices MichaelBurov) | |||