Rubber Base Impression Material Slideshare

Impression materials elastic chemical reactions irreversible alginate elastomers polysulphides polyethers condensation silicon addition silicon temperature change reversible agar hydrocolloid chemical reactions irreversible plaster of paris zno eugenol temperature change reversible impression compound. 123 1234 123 1234 1231234 071231234 07 123 1234. Read before the academy of denture prosthetics columbus ohio may 3 1957.

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Elastomeric Impression Materials

Elastomers

Impression Materials 1

Silicone Based Impression Materials

Elastomeric Imp Mat

Elastomeric Impression Materials Dental Implant Courses

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Rubber base impression material slideshare.

Inaccurate portions can be remade without having to remakethe entire impression. An impression with a sufficiently high elastic limit should not sustain permanent deformation. Classification of elastomeric impression materials. Compress soft tissue while making impression.

Difficult to record. Impression materials a brief introduction dr saransh malot 2. Polyether impression material developed in germany 1970s. Distortion due to poor dimensional stability.

Accuracy can be improved by flaming surface material disadvantages. See my price quick order type item number or scan barcode item number required please enter a patterson item number in the correct format. Addition silicone was introduced as a dental impression material 1988. Elastic impression materials 1.

Impression material any substance or combination of substances used for making an impression or negative reproduction. These are basically synthetic rubber based materials which were initially called as rubber impression materials but currently they are known as non aqueous elastomeric impression materials. Difficult to remove if there are undercuts. Omniflex rubber base impression material bulk package fast set gc america inc.

The introduction of rubber based polysulfide impression materials was followed by silicone based materials both of which are still in use. Till now the elastomeric impression materials are divided into 3 types based on the material used. An impression material sustains some deformation as it is removed from the mouth but it must rebound to its pre removal dimensions. Direct inhibition direct contact with latex gloves impression are made with rubber dam in place mechanism of inhibition element sulphur react with chloroplatinic acid catalyst present in pvs impression material.

Impression a dental impression is a negative record of the tissues of the mouth. New auto devices and. Following these elastic polyether impression materials were introduced followed in recent times by polyvinylsiloxane impression materials. Earlier materials base and catalyst tubes present materials cartridges.

The elastic properties of these elastomeric impression materials improve with an increase in curing time in the mouth. Dean marquette university school of dentistry. Development of rubber base impression materials polysulphides and condensation silicones 1960s. A device that is used to carry confine and control impression material while.

Latest addition and light cure elastomers 1990 2000. Material can be reused several times. It is used to register or reproduce the form and relationship of teeth and surrounding tissues.