A comprehensive lecture by Dr Rashid Hassan on Temporary crown and bridge resins . The lecture covers the materials used as temporary crown & bridge, the technique of using and the general properties of materials used.

1. By
Dr. RASHID HASSAN
BDS(de’ Mont) MSc (QMUL.UK)
Hod Science of Dental Materials

2. 1) ACRYLIC (POWDER/LIQUID)
2) ACRYLIC (LIGHT ACTIVATED
3) COMPOSITE (GUN MIX PASTE)
4) COMPOSITE (LIGHT ACTIVATED)
5) HIGHER METHACRYLATE
MATERIAL (POWDER/LIQUID)

3. 1) 1) ACRYLIC
2) POWDER/LIQUID
2) ACRYLIC
LIGHT ACTIVATED
POWDER
POLY METHYL METH
ACRYLATE BEADS +
INITIATOR
LIQUID
METHACRYLATE
MONOMER + ACTIVATOR
POLY METHYL METH
ACRYLATE +
MONOMER + PHOYO
ACTIVATOR
SINGLE PASTE SYSTEM

4. 1) 3) COMPOSITE
2) PASTE
4) COMPOSITE
LIGHT ACTIVATED
MULTIFUNCTIONAL
METHACRYLATE +
FILLERS +
INITIATORS +
ACTIVATORS
GUN MIX SYSTEM
MULTIFUNCTIONAL
METHACRYLATE +
FILLERS + PHOTO
ACTIVATOR
SINGLE PASTE SYSTEM

5. POWDER
POLY METHYL METH ACRYLATE BEADS +
PEROXIDE INITIATOR
LIQUID
ISO BUTYL METHACRYLATE MONOMER +
ACTIVATOR
5) HIGHER METHACRYLATE MATERIAL

6.  Initial impression is recorded prior to tooth
preparation.
 Tooth is prepared.
 Temporary crown & bridge material is placed in the
desired area of the initial impression.
 Impression reinserted into the patient’s mouth.
 Impression & resin are removed after initial set.
 Final set occurs outside patient’s mouth.

11. Dr. RASHID HASSAN
BDS(de’ Mont) MSc (QMUL.UK)
Hod Science of Dental