Rubber Base Impression Material Slideshare

Dean marquette university school of dentistry.

Rubber base impression material slideshare. Classification of elastomeric impression materials. Elastic impression materials 1. 735 north water st. It is used to register or reproduce the form and relationship of teeth and surrounding tissues.

Latest addition and light cure elastomers 1990 2000. 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. The introduction of rubber based polysulfide impression materials was followed by silicone based materials both of which are still in use. Polyether impression material developed in germany 1970s.

Addition silicone was introduced as a dental impression material 1988. Earlier materials base and catalyst tubes present materials cartridges. Read before the academy of denture prosthetics columbus ohio may 3 1957. 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.

Accuracy can be improved by flaming surface material disadvantages. New auto devices and. 123 1234 123 1234 1231234 071231234 07 123 1234. Compress soft tissue while making impression.

Impression materials a brief introduction dr saransh malot 2. Material can be reused several times. Omniflex rubber base impression material bulk package fast set gc america inc. Difficult to remove if there are undercuts.

Distortion due to poor dimensional stability. Till now the elastomeric impression materials are divided into 3 types based on the material used. Inaccurate portions can be remade without having to remakethe entire impression. 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.

A device that is used to carry confine and control impression material while. Development of rubber base impression materials polysulphides and condensation silicones 1960s. An impression with a sufficiently high elastic limit should not sustain permanent deformation. Difficult to record.

Impression a dental impression is a negative record of the tissues of the mouth. See my price quick order type item number or scan barcode item number required please enter a patterson item number in the correct format. Following these elastic polyether impression materials were introduced followed in recent times by polyvinylsiloxane impression materials.