Crown Sizing Guide
KTR crowns use a standardized sizing system across both zirconia and stainless steel product lines. Each tooth position has a range of sizes to accommodate natural variation in primary tooth dimensions.
Complete Coverage
Every tooth, every size
Incisors, cuspids, and molars, every position covered
| Position | Sz 1 | Sz 2 | Sz 3 | Sz 4 | Sz 5 | Sz 6 | Sz 7 |
|---|---|---|---|---|---|---|---|
| Incisors | |||||||
D | |||||||
E | |||||||
F | |||||||
G | |||||||
N/O/P/Q | |||||||
| Cuspids | |||||||
C | |||||||
H | |||||||
M | |||||||
R | |||||||
| Molars | |||||||
A | |||||||
B | |||||||
I | |||||||
J | |||||||
K | |||||||
L | |||||||
S | |||||||
T | |||||||
Tips for Selecting the Right Size
Start with the second-smallest size
Begin with the second-smallest size for the given tooth and adjust up if the crown does not fully seat. This approach minimizes over-contouring.
The zirconia crown should seat with light, passive pressure
A properly sized zirconia crown will seat fully with gentle fingertip pressure. Any resistance or force suggests the crown is too small or additional tooth reduction is needed.
The stainless steel crown should snap on with gentle pressure
A properly sized SSC will snap into place with firm but gentle finger pressure. Excessive force suggests the crown is too small.
Test sizes with free samples
Not sure which size to start with? Request our sample crowns and try different sizes in your practice before committing to a full order.