Table of Contents
- 1 What holds a matrix band in place?
- 2 What is a matrix retainer?
- 3 Which would be used to hold a posterior matrix band in position?
- 4 What instrument is commonly used to contour the matrix band?
- 5 Where is a universal matrix band used?
- 6 What are the different types of matrix bands?
- 7 What is the function of the matrix band?
What holds a matrix band in place?
Universal retainer Also referred to as the Tofflemire retainer. This device holds the matrix band in position. The retainer is positioned most commonly from the buccal surface of the tooth being restored.
What is a matrix retainer?
[re-tān´er] an appliance or device that keeps a tooth or partial denture in proper position. matrix retainer a mechanical device that clamps the ends of a matrix band and tightens it around a tooth.
What are matrix bands used for in dentistry?
Matrices are placed for interproximal restorations to aid in restoring normal contour and contact areas and to prevent extrusion of restorative materials into gingival tissues. Many types of matrix bands are available for use in pediatric dentistry.
Which would be used to hold a posterior matrix band in position?
What is used to hold a posterior matrix band in position intraorally? Universal retainer or Toffelmire retainer.
What instrument is commonly used to contour the matrix band?
What instrument is commonly used to contour the matrix band? The burnisher or the end of a mirror handle.
What is a matrix band?
matrix band a cylindrical metal band with a special clamp or holder (the matrix retainer); it is filled with softened impression compound and seated over a tooth so that the compound flows into the prepared cavity and an impression of the tooth can be obtained.
Where is a universal matrix band used?
restorations
Matrix Band Placement The Universal (Tofflemire) matrix system is used in Class II restorations. The primary function of the matrix is to restore anatomic proximal contours and contact areas.
What are the different types of matrix bands?
Matrix bands for primary and permanent Class II composite restorations
- Choosing the best matrix system for the procedure and the patient can enhance clinical success.
- Case 1: T-bands. The T-bands that provide the best contacts are the .
- Case 2: Omni-matrix.
- Case 3: Sectional matrices with separation rings.
What is a matrix band and retainer used for in dentistry?
Contact ring matrix retainers (trade names: BiTine, Contact matrix, Composi-Tight) have been developed for use with sectional matrices to provide tooth wedging and reduce the need for interproximal wedging.
What is the function of the matrix band?
Matrix Band Placement The primary function of the matrix is to restore anatomic proximal contours and contact areas. A properly placed matrix should: Be rigid against the existing tooth structure. Establish proper anatomic contour.