Podcast
Questions and Answers
What is the term for the temperature at which a material melts or freezes?
What is the term for the temperature at which a material melts or freezes?
- Thermal diffusivity
- Thermal conductivity
- Melting or freezing temperature (correct)
- Coefficient of thermal expansion
Which physical property of a material is defined as its mass per unit volume?
Which physical property of a material is defined as its mass per unit volume?
- Thermal conductivity
- Specific heat
- Coefficient of thermal expansion
- Density (correct)
What is the reason why low-density alloys require higher pressure during casting?
What is the reason why low-density alloys require higher pressure during casting?
- To reduce the risk of porosity
- To allow rapid filling of the mold cavity (correct)
- To achieve a smoother surface finish
- To increase the strength of the alloy
Why are non-metallic denture base materials preferred over metallic denture base materials?
Why are non-metallic denture base materials preferred over metallic denture base materials?
What is the term for the ability of a material to conduct heat?
What is the term for the ability of a material to conduct heat?
What type of alloys require special casting machines during casting?
What type of alloys require special casting machines during casting?
What is the main consequence of a large difference in coefficient of thermal expansion between the filling material and the tooth structure?
What is the main consequence of a large difference in coefficient of thermal expansion between the filling material and the tooth structure?
What is the importance of close matching of CTE between artificial teeth and denture base?
What is the importance of close matching of CTE between artificial teeth and denture base?
What is the clinical importance of specific heat in dentistry?
What is the clinical importance of specific heat in dentistry?
What is the characteristic of gold alloys that makes them easier to melt and cast?
What is the characteristic of gold alloys that makes them easier to melt and cast?
What is the unit of measurement for specific heat?
What is the unit of measurement for specific heat?
What is the result of a high difference in CTE between the filling material and the tooth structure?
What is the result of a high difference in CTE between the filling material and the tooth structure?
What is the phenomenon where objects appear color-matched under one type of light and different under another light source?
What is the phenomenon where objects appear color-matched under one type of light and different under another light source?
Which of the following factors affects color selection by modifying the type of light reaching the object?
Which of the following factors affects color selection by modifying the type of light reaching the object?
What is the effect of high translucency on the color appearance of an object?
What is the effect of high translucency on the color appearance of an object?
Why is it recommended to rest the eyes when comparing shade guides?
Why is it recommended to rest the eyes when comparing shade guides?
What is the effect of increasing the thickness of an object on its color appearance?
What is the effect of increasing the thickness of an object on its color appearance?
How many light sources should be used when performing color matching?
How many light sources should be used when performing color matching?
