DirectCrown Natural 1™ Composite Temporary Crown
 
 Direct Technique 
   
TOOTH PREPARATION & CROWN SHELL SELECTION

 

 

• Prepare the tooth using standard preparation techniques.

• Select the appropriate DirectCrown Natural 1™ crown shell that passively fits over the prepared tooth.

• Try in the Natural 1 crown shell by placing it over the prepared site and adjusting the buccal/lingual walls as necessary. Verify that the patient can close into centric occlusion by having them close gently on the Natural 1 crown shell.

PROCEED TO EITHER THE ACRYLIC INSTRUCTIONS (below) OR BIS-ACRYL INSTRUCTIONS

 

 

DIRECTIONS USING ACRYLIC

PREP SHELL

• Air abrade or roughen the inside of the DirectCrown Natural 1™ crown shell.

MIX & FILL

 

• Follow acrylic manufacturer’s instructions for use.

• Fill the selected crown shell with the mixed resin.

 

FIT

 

• Seat the filled crown shell over the tooth preparation and have the patient gently bite down into proper occlusion.

• Using an explorer (or other instrument), remove the excess material from the margins. Allow the temporary crown to remain in the patient’s mouth until the material begins to set but prior to complete set so that “lock on” does not occur.

• Remove the crown shell from the tooth preparation and replace it back into the mouth (repeat this process several times during acrylic set time).

TRIM & POLISH

 

• Remove the fitted crown shell from the tooth preparation. Mark the margins with a pencil and trim as necessary.

• Polish the crown with polishing instruments.

SEAT

• Cement the Natural 1 crown into place using a conventional, non-eugenol crown and bridge cement. 

 

TOOTH PREPARATION & CROWN SHELL SELECTION 
 
Prepare tooth and select crown shell following instructions on side one. 
 
DIRECTIONS USING BIS-ACRYL WITH BONDING MATERIAL

PREP SHELL

• Air abrade or roughen the inside of the DirectCrown Natural 1™ crown shell. 

 

LAYER & FILL

 

• Brush the inside of the Natural 1 crown shell with Composive and light cure 10 seconds.

• Following the bis-acryl manufacturer’s instructions, fill the internal portion of the crown shell with the bis-acryl material.

 

FIT

 

• Seat the crown shell filled with bis-acryl over the prepared tooth.

• Allow the material to set according to the manufacturer’s directions.

TRIM & POLISH

 

• Remove the Natural 1 crown shell from the tooth while the material is still in the “elastic” phase and follow the bis-acryl manufacturer’s instructions for removing excess material from the preparation site.

• Remove the excess material and oxygen-inhibited layer from the crown shell using the bis-acryl product’s recommended technique.

• Polish the crown as desired.

SEAT

• Adhere the Natural 1 crown using a conventional, non-eugenol crown and bridge cement.