Matrix systems for Operative Dentistry

60 %
40 %
Information about Matrix systems for Operative Dentistry
Education

Published on March 9, 2014

Author: Hakanolak1

Source: slideshare.net

Matrix Systems for Restorative Dentistry Dr. Hakan ÇOLAK Ishık University School of Dentistry

Introduction  A matrix system provides and takes the place of the proximal tooth surface that was removed to restore the proximal contours and contact to their normal shape and function.

Classification of Matrices

Ivory Matrix Holder (Retainer) No. 1  Ivory matrix holder No. 1 is most commonly used matrix band holder for unilateral class II tooth preparations.

Ivory Matrix Holder (Retainer) No. 1 Diagrammatic representation of Ivory no. I retainer and band

Tofflemire Universal Matrix Band Retainer  It was designed by Dr BF Tofflemire. It is also well known as ‘universal’ matrix because it can be used in all types of tooth preparations of posterior teeth.  In this, the matrix band is fitted onto the retainer and then fitted loosely over the tooth, which then can be tightened in position by means of the screw

Types of Tofflemire Matrix  Based on type of head  Straight    i. Head of matrix system is straight ii. Placed only from buccal side Contra-angle    i. Head is angulated ii. Placed either from buccal or lingual side. Based on type of dentition  Standard-use in permanent dentition  Small-used in primary dentition.

Types of bands  Two types of bands are usually used:  1. Flat Bands  2. Precontoured bands.

Types of bands  Flat bands:  Available in two thicknesses   0.0015 inches   0.0020 inches Any of these thickness can be used, it depends upon operators preference. According to shapes, three shapes of flat bands are available  No. 1 or universal band  No. 2 or (MOD band):    It has two extensions projecting at gingival edge. Commonly used in molars No. 3:  Similar to No. 2 band in design but narrower than No. 2

Types of bands  According to shapes, three shapes of flat bands are available  No. 1 or universal band  No. 2 or (MOD band):    It has two extensions projecting at gingival edge. Commonly used in molars No. 3:  Similar to No. 2 band in design but narrower than No. 2

Types of bands  Flat band need to be contoured before placing in retainer.  Contouring of band can be done with the help of:  Ovoid burnisher  Spoon excavator (using its convexside)

Types of matrix bands

Types of bands  Precontoured bands:

Retainerless Automatrix System  This matrix system can be adjusted according to tooth shape and size. The bands are available in different sizes, and come in preformed and disposable form

Precontoured Matrix/Palodent Bitine System  This system consists of precontoured matrices made up of soft metal. In this, the wedge is used to separate the teeth and hold the sectional matrix in position.

Matrix and Wedge Combined Systems  These type of matrix systems offers a unique solution by combining a wedge and a matrix in its design, allowing for fast and efficient approximal contacts for Class II restorations. This one-piece wedge and matrix inserts as easy as a wedge and can be placed in only 5 seconds. No ring required  Achieve restorations with natural contact and tight cervical margins  Tight cervical marginal adaptation avoids overhangs  Convex natural contact point  Flexible wing exerts pressure for maintained separation

FenderMate Assortment Kit

FenderMate Assortment Kit

Cervical matrices

Translucent Matrix Systems

Translucent Matrix Systems

Wedges

Wedges  Types of wedges:  Wooden  Plastic wedges wedges.

Wedges  Wooden wedges:  These are most commonlyused and preferred as they can be easily trimmed and can be fitted in gingival embrasure.  Adapt well in the gingival embrasure  Easy to use  Wooden wedges absorb water, thus increase the interproximal retention  Provide stabilization to matrix band  Available in two shapes  1. Triangular  2. Round

Plastic Wedges  Trimming is difficult  Adaptability is difficult in some cases.

Types of Plastic Wedges  Normal wedges:   They are similar to the wooden wedges in shape and use. Wave shaped wedges :  Their curved shape helps in easy placement and proper seal of buccal and lingual embrasures without impinging gingiva.  Wave shaped wedges are available in three different sizes, i.e. small (white), medium (pink) and large (violet) color

Types of Plastic Wedge Wave shaped wedges

Light transmitting wedges  As the name indicates, these types of wedges transmit 90 to 95 percent of incident light  They are a type of plastic wedges  Transparent in nature  Designed for use in cervical area of class II composite resin restoration

Light transmitting wedges  Advantages of light transmitting wedges over other wedges in composite restorations:  Help in reducing the polymerization shrinkage because of light transmission  Better adaptability.

Interdental Wedges with Hemostatic Properties  Made of maple wood from sustainably managed swiss forest  Contain aluminium potassium sulphate  Well know agent with astringent (hemostatic) effect of gingiva

Add a comment

Related presentations

Related pages

Matrix Systems for Restorative Dentistry - [CSI] College ...

Title: Matrix Systems for Restorative Dentistry Author: Ann Ehrlich Last modified by: Mike Dumonceaux Created Date: 3/16/2002 12:50:36 PM Document ...
Read more

49. Matrix Systems for Restorative Dentistry | Pocket ...

Operative Dentistry; ... Matrix Systems for Restorative Dentistry. ... The matrix system most commonly used today for the class II restoration is the ...
Read more

21. Restorative Procedures | Pocket Dentistry

Matrix. Operative Dentistry. Preparation. ... Matrix Systems. ... Comments Off on 21. Restorative Procedures.
Read more

Operative Dentistry - Modified Matrix Band Design for ...

... Modified Matrix Band Design for Ultra-conservative Posterior Restorations. Operative Dentistry ... Careful adaptation of the matrix system is ...
Read more

Ch. 39 Matrix Systems for Restorative Dentistry flashcards ...

Ch. 39 Matrix Systems for Restorative Dentistry ... Matrix system used to create temporary wall to support the tooth restoration without using a retainer ...
Read more

Modified Matrix Band Design for Ultra-conservative ...

©Operative Dentistry, 2008 ... tion of the matrix system is paramount to ... Modified Matrix Band Design for Ultra-conservative Posterior Restorations.
Read more

Chapter 49: Matrix Systems for Restorative Dentistry ...

Chapter 49: Matrix Systems for Restorative Dentistry 10 terms by dmessenger. Study Study ...
Read more

By -Dr. KanupriyaChoudhary - Jagadguru Sri ...

MATRIX SYSTEMS FOR PRIMARY TEETH The T-band is a T-shaped copper band or stainless steel band. When formed , ... Operative dentistry –Marzouk
Read more