Limitaion Of Dental Materials

Question 1

APPLICATIONS OF DENTAL MATERIALS

Answer 1

fixed permanently into the patient’s mouth or are removed only intermittently for cleaning.
•Such materials have to withstand the effects of a most hazardous environment
•Temperature variations
•wide variations in acidity or alkalinity
•high stresses
•all the above have an effect on the durability of materials.

Question 2

Oral cavity lies in-between

Answer 2

temp variations in the oral cavity lie between 32°C and 37°C
•The ingestion of hot or cold food or drink
0°C up to 70°C.
• The acidity or alkalinity of fluids in the oral cavity is between pH 4 and pH 8.5,
• intake of acid fruit juices or alkaline medications can extend this range from pH 2 to pH 11.

Question 3

SELECTION OF DENTAL MATERIALS

Answer 3

The process of materials selection should ideally follow a logical sequence involving
●analysis of the problem,
●consideration of requirements,
●consideration of available materials and their properties, leading to
●choice of material. Evaluation of the success or failure of a material may be used to influence future decisions on materials selection.

Question 4

What to consider in the case study

Answer 4

Consider the treatment.
•Record type of appliance and number of teeth involved.
•What other factors influence material selection?
•Select materials to be used.
•Justify why you have chosen certain materials and disregarded others……

Question 5

Need to over it all again