INFILTRATION

Paraffin

Rapid method

Paraffin

Cut with ease without distortion

Paraffin

Many stainings are permitted

Paraffin

Prolonged exposure may cause excessive shrinkage and brittleness

Paraffin

Not recommend to fatty tissues

Celloidin

Large and sense specimen

Celloidin

Hard and dense tissue

Celloidin

Neurologic tissue

Celloidin

Less shrinkage; it does not require heat

Celloidin

Cutting thick tissues

Celloidin

Very slow and volatile

Celloidin

Thin sections are difficult to cut

Wet celloidin

It uses 70%-80% alcohol to avoid dehydration and shrinkage

Dry celloidin

Uses Gilsons mixture to make them transparent

LVN

Low viscosity > high concentration> fast penetration

LVN

Cuts thin sectiona due to hard block

Plasticizers

In LVN, this are added to prevent crackings

Gelatin

For delicate and frozen tissue

Gelatin

Water soluble (no dehydration and clearing needed)

Gelatin

Prevents fragmentation of tough and friable tissues when frozen