Introduction:
The distal decay extended deep onto the root. As a consequence, I struggled to get the Greater Curve band to extend beyond the distal margin. This great technique solves these kinds of dilemmas.
A matrix within a matrix has an additive benefit of properly contouring the composite. Less finishing will be necessary.
I learned this trick from others on Dentaltown. Passing it on.
Matrix within a matrix
Struggled to get the Greater Curve band to go beyond the distal margin. Placed a rounded cut band fragment within the matrix past the margin. Look closely and you can see the piece of stainless within the confines of the Greater Curve matrix.
![](https://cdn.shopify.com/s/files/1/1373/1595/files/1_cf22ba4f-9c91-42c0-aea6-a4e16e7cf02e.jpg?v=1673470636%20art-step=)
Band fragment
The band fragment was cut from the middle portion of a Standard Greater Curve band.
![](https://cdn.shopify.com/s/files/1/1373/1595/files/2_5d29eeda-98d2-4632-ba04-3921e1bd9869.jpg?v=1673470636%20art-step=)
Composite placement
The band fragment also kept the composite from extending too far distally. This made shaping the distal simpler, since there was less bulk to cut back.
![](https://cdn.shopify.com/s/files/1/1373/1595/files/3_0e3465c7-9e97-4ca8-8397-576884ff90ea.jpg?v=1673470636%20art-step=)
Final composite
![](https://cdn.shopify.com/s/files/1/1373/1595/files/4_66dabe2c-870a-4183-8fbb-c5c2818c73cf.jpg?v=1673470636%20art-step=)