This year's theme at the ODA was 'Choose your weapon'. Our booth had a 3 foot 2x4, 3 hammers and several TLZ crowns to choose from. Dentists were asked to drive a crown into the wood with the hammer to experience the strength of a TLZ crown. It took a single hand sledge hammer to finally break a crown. This crown was abused for a month before finally succumbing to our punishment.
The TLZ crown is tough, yet esthetic, adjustable, and polishable chairside. TLZ crowns are appropriate for nearly all posterior cases.