Description
Matrix Retainer
Size: No. 9
Dental Instruments
SMS Instrument Matrix retainer ivory no.9 is introduced for the improvement on the ivory no.8. The No 9 Matrix retainer simplified the adaptation of the band to the retainer and its release after the restorative procedure. The matrix was indicated for restorations of three or more surfaces . It, too, produced loss of contour and contact when tightened.
| Surname | Matrix Retainer |
| Size / Model / Figure | No.9 |
| curvature | Straight |
| Finishing | Mirror Polish Finishing |
| Instrument Type | Dental Matrix Retainer |
| Material | Stainless Steel |
| Disposable or Reusable | Reusable |
| Rusting Prevention | Passivation Processed |
| Cleaning | Ultrasonic Cleaned |
| Sterile or Non-Sterile | Non-Sterile |
| Latex or Latex-Free | Latex-Free |
| Test Performed | Boil, Shape & Performance Test |
| Grade | Premium OR-Grade |
| Packing | Individually Packed in SMS Brand printed Poly-sleeve |
Matrix Retainer
A Dental Matrix Retainer is mechanical used to secure the ends of a matrix band around a tooth. The band provides a substitute wall where a part of the tooth is missing and helps to compact a restoration into a prepared tooth cavity after the carious lesion has been removed. Usually by engaging the ends of the matrix band and drawing the band tight. When a restoration involves an interproximal surface, it is not possible to achieve a properly adapted restoration without a matrix band. A matrix band creates a temporary interproximal surface, and, when appropriate, a matrix retainer secures the matrix band in place.
Function of matrix
- To confine restorative material while it is hardening.
- To established optimal contacts and contours for the restoration.
- To prevent gingival overhangs off restoration.
- To provide acceptable surface texture for restoration.
