MDS PREP
Which of the following materials has osteoconductive property
1) Autogenous graft
2) Hydroxyapatite
3) Plastic materials
4) Cartilage
Periodontics
Answer: 2
In concentrations usually applied for sterilization purposes, ethylene oxide is preferable to formaldehyde becuase it is
1. more readily polymerized to an active form
2. less toxic
3. less likely to form an explosive mixture with air
4. more penetrating
Microbiology
Answer: 4
In concentrations usually applied for sterilization purposes, ethylene oxide is preferable to formaldehyde becuase it is more penetrating
All of the following lesions may be classified as odontogenic cysts EXCEPTS
1. Dentigerous cyst and keracyst
2. Branchial cleft cyst and globulomaxillary cyst
3. Botryoid cyst and prodordial cyst
4. Gorlin cyst and eruption cyst
Medicine
Answer: 2
What is the primary difference between Class I and Class II gypsum products?
1) Setting time.
2) Compressive strength.
3) Expansion.
4) Both A and B.
Class II (dental stone) has a higher compressive strength compared to Class I (dental plaster), making it suitable for model making and other applications requiring higher durability.