Primary laboratory techniques

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Primary Laboratory Techniques
‫ فتحي امـحمد قندي‬.‫د‬

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Manual Cutting Tools
5. Hand saw:
• Materials:
Handle: Metal, wood, plastic
Blade: Stainless steel
• Requirements:
Corrosion resistance
Ergonomic design
1/9/2024
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Manual Cutting Tools
5. Hand saw
• Usage:
Cutting and separating single die stone of teeth segment.
The cutting is made by the forward and backward
movement of the saw blade with constant pressure
and force.
1/9/2024
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Carving Instruments
1. Le Cron carver:
• Materials: Stainless steel
• Usage:
Wax and porcelain modelling and carving
• Features:
Non-slip handle
Corrosion resistance
Heat resistance
1/9/2024
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Carving Instruments
2. Ward carver:
• Double ended and round handle dental instrument
• Materials: Stainless steel
• Usage:
Wax and porcelain modelling and carving
1/9/2024
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Carving Instruments
2. Ward carver:
• Features:
Non-slip handle
Corrosion resistance
1/9/2024
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Carving Instruments
3. Roach carver:
• Triangular carver end & bulb scoop end
• Materials: Stainless steel
• Usage:
To shape and carve wax patterns
1/9/2024
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Carving Instruments
3. Roach carver:
• Requirements:
Non-slip handle
Corrosion resistance
1/9/2024
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Carving Instruments
4. Hylin carver:
• Materials: Stainless steel
• Usage:
To carve wax patterns
• Requirements:
Non-slip grip
Corrosion resistance
Heat resistance
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Mixing instruments
1. Gypsum / Plaster spatula:
• Materials:
Stainless steel sheet with wooden handle
Plastic
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Mixing instruments
1. Gypsum / Plaster spatula:
• Usage:
To mix gypsum
• Features:
Non-slip grip
Corrosion resistance
Ergonomic handle
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Mixing instruments
2. Rubber bowl:
• Materials:
Silicone
Rubber
Plastic
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Mixing instruments
2. Rubber bowl:
• Usage:
To mix gypsum
• Features:
Washable
Very flexible
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Mixing instruments
3. Acrylic spatula:
• Materials:
Stainless steel
• Usage:
To mix acrylic
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Mixing instruments
3. Acrylic spatula:
• Requirements:
Easy to clean
Corrosion resistance
Non-slip grip
• Features:
Double ended
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Mixing instruments
4. Porcelain jar:
• Materials:
Porcelain
• Usage:
Acrylic mixing
• Features:
Cap
Highly glazed
Non porous surface
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Measuring instruments
1. Iwanson Gauge / Caliper:
• Materials:
Stainless steel
• Usage: To measure the thickness of
Metal crown
Wax crown pattern
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Measuring instruments
1. Iwanson Gauge / Caliper:
• Features:
Measuring range 0-10mm
Rounded tip
Corrosion resistance
Ergonomic design
Autoclavable
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Measuring instruments
2. Ruler:
• Materials:
Plastic
• Usage: To measure
Artificial teeth, dental arch rim, occlusal rim, etc
• Features:
Flexible
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