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- Aug 3, 2007
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Can someone give me the correct answer and a possible explanation for these questions. I very much appreciate your help.
The two types of dentin are sclerotic and non-sclerotic. Clinically they can be differentiated because dentin appears heavily stained while non-sclerotic dentin appears milky white or opaque
1. True
2. False
which of the following statements is true concerning the fabrication of a wax pattern?
1. Acute duplication of the original tooths occlusal morphology is essential
2. Occlusal morphology should be in harmony with the patients function
3. Occlusal contacts should be in maximum intercuspal position
4. The pattern should be invested immediately after margination
5. The external surface should be free of roughness or irregularities
A) 1,2,4,5 B)2,3,4,5 C) 2,3,4 D)1,2,3,5 E) 2,3,5
Which statement concerning ovate pontic forms is true?
1. The ovate pontic form is bulky and therefore its use should be limited to posterior edentulous areas
2. The ovate pontic form can only be cleaned with the use of a proxy brush between surface of the residual ridge and gingival side of the pontic.
3. The ovate pontic form cannot be cleaned at all between the surface of the residual ridge and the gingival side of the pontic
4. The ovate pontic form is esthetic but the residual ridge surface and pontic contact cannot be effectively cleaned with the aid of dental floss
5. None of the above
The disadvantage of the saddle type full ridge lap pontic is :
1. Esthetics
2. Food entrapment
3. Uncomfortable for patient
4. Requires surgical preparation
5. Not amenable for oral hygiene
To create the illusion of a narrow tooth or restoration:
1. Open the facial embrasures
2. Moving the transitional angles closer together
3. Move the transitional angles farther apart
4. 1&2
5. 1&3
The two types of dentin are sclerotic and non-sclerotic. Clinically they can be differentiated because dentin appears heavily stained while non-sclerotic dentin appears milky white or opaque
1. True
2. False
which of the following statements is true concerning the fabrication of a wax pattern?
1. Acute duplication of the original tooths occlusal morphology is essential
2. Occlusal morphology should be in harmony with the patients function
3. Occlusal contacts should be in maximum intercuspal position
4. The pattern should be invested immediately after margination
5. The external surface should be free of roughness or irregularities
A) 1,2,4,5 B)2,3,4,5 C) 2,3,4 D)1,2,3,5 E) 2,3,5
Which statement concerning ovate pontic forms is true?
1. The ovate pontic form is bulky and therefore its use should be limited to posterior edentulous areas
2. The ovate pontic form can only be cleaned with the use of a proxy brush between surface of the residual ridge and gingival side of the pontic.
3. The ovate pontic form cannot be cleaned at all between the surface of the residual ridge and the gingival side of the pontic
4. The ovate pontic form is esthetic but the residual ridge surface and pontic contact cannot be effectively cleaned with the aid of dental floss
5. None of the above
The disadvantage of the saddle type full ridge lap pontic is :
1. Esthetics
2. Food entrapment
3. Uncomfortable for patient
4. Requires surgical preparation
5. Not amenable for oral hygiene
To create the illusion of a narrow tooth or restoration:
1. Open the facial embrasures
2. Moving the transitional angles closer together
3. Move the transitional angles farther apart
4. 1&2
5. 1&3