Rubber Base Impression Material Slideshare

Impression a dental impression is a negative record of the tissues of the mouth.

Rubber base impression material slideshare. Development of rubber base impression materials polysulphides and condensation silicones 1960s. Polyether impression material developed in germany 1970s. 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. Impression material any substance or combination of substances used for making an impression or negative reproduction.

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

735 north water st. An impression with a sufficiently high elastic limit should not sustain permanent deformation. Earlier materials base and catalyst tubes present materials cartridges. Read before the academy of denture prosthetics columbus ohio may 3 1957.

New auto devices and. Inaccurate portions can be remade without having to remakethe entire impression. Omniflex rubber base impression material bulk package fast set gc america inc. Distortion due to poor dimensional stability.

Difficult to record. Classification of elastomeric impression materials. Dean marquette university school of dentistry. 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.

See my price quick order type item number or scan barcode item number required please enter a patterson item number in the correct format. Accuracy can be improved by flaming surface material disadvantages. An impression material sustains some deformation as it is removed from the mouth but it must rebound to its pre removal dimensions. Following these elastic polyether impression materials were introduced followed in recent times by polyvinylsiloxane impression materials.

Elastic impression materials 1. Till now the elastomeric impression materials are divided into 3 types based on the material used. Impression materials a brief introduction dr saransh malot 2. Difficult to remove if there are undercuts.

Addition silicone was introduced as a dental impression material 1988. 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.