University of Texas Study

The University of Texas Study On C-Shape Composite Restorations


The University of Texas research study was conducted to evaluate the how well C-Shape systems improve or hinder microleakage resistance and adaption in composite restorations and sealant placement.


After the composite or sealant material is applied with either a traditional tool or series of tools or a C-Shape instrument, they were put in a thermocycler for 500 rounds. The teeth were later placed in dye and allowed to set for 24-hours. Then, they were sectioned and examined under a scanning electron microscope. Beneath the SEM the marginal adaptation and any microleakage were evaluated.


The study determined that results with the C-Shape system consistently demonstrated a stronger marginal seal without any microleakage. The restoration was more reliable with higher density.

Clinical Significance:

A C-Shape composite restoration is scientifically proven to be denser and stronger with no microleakage for a more durable restoration.

"Composites are easier to place since there is no pull back"

- Dr. G. Felen

"Works very well! It makes resins much more efficient to complete"

- K. Ducote (dental student)

"I can't believe how much I love the instrument. I'm ready to order more!"

- I. Renieris

"I have added it to my composite placement instruments."

- C. Kerbaugh