Cements 25

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Evening beauty you'll have a push ♥ 

Lecture 3 

We took the day from page 21 of page 32 

We started with zinc poly carboxylate cement 

And unto Bethcon of 

As for 

1-powder + liquid: 40% aqueous solution 

or 

2-powder: (zinc oxide, freeze washed polyacrylic) + water 

 

After Keda knew that he was united with the teeth by chemical bonds chemical bond 

The ratio will be 

1: 1 For cementation

2: 1 For base 

After the properties of zinc polycarxylate

Of course not irritant and ph 5.5: 6 

Film thickness ↗️ 45 microns 

Solubility less than zinc phosphate 

Strength: 55_95 Mpa 

Modulus of elasticity: 4_4.5 Gpa

What we said in the first is that he has the ability to act as a chemical bond 

Uses:  

Permanent cementation 

Bases under restoration 

Cementation 

Baal Keda talked about glass ionomer cement 

We knew it was 3 types 

Type 1 🔼 luting crown 

Type 2 🔼 restorative 

Type 3 🔼 liner

Its composition is Phpicon  

Powder: calciumfluoroaluminosilicate glass

Liquid: aqueous solution of poly acrylic 50% 

After Keda Niji for the interaction steps is very important and consists of 4 stages 

Dissolution 

Migration 

Reaction and precipitation 

Hydration 

We have stated that it is a chemical bond with tooth structure 

Uses: 

Permanent cementation 

Cement base 

Class V restoration 

Cementation of orthodontic 

The characteristics certainly sure 

Mild effect on the pulp 

Anticariologenic effect 

Film thickness: less than 25 microns 

Compressive strength 90-230 Mpa

The lecture was the day, God willing, the bitter time completed Modifications 

This week, God willing, you will be accompanied by a lecture, a violin 

And they are: The Day of the Athenians (9:00 am) 

Amany Esam will be responsible for the additional material length of the Terme 

Our Lord is always able to help and benefit 

Good luck

Written by : Scientific Committee