some important qs

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In a composite filling, the matrix band is forA. Help shaping and contouring the fillingB. Prevent material to be pushed under the gingival margin4. The advantage of guttapercha over silver points isA. The possibility for lateral condensation5. When do you make a fixed-moveable bridge?A. When the abutment teeth don’t have the same path of insertion6. In a class II.2 malocclusion, which bridge design would be contraindicated for a missinglateral upper incisor?A. Cantilever bridgeB. land bridge7. Which is the best cantilever bridge design for missing maxillary canine? Abutment

onA. Both premolarsB. Lateral and central incisorC. Lateral incisorD. First premolar8. A 9 years-old child who has sustained a fracture of a maxillary permanent centralincisor in which 2 mm of the pulp is exposed, presents for treatment 30 minutes afterinjury. Which of the following should be considered?A. Remove 1-2 mm of the pulp tissue surface, place calcium hydroxide and fill with resinB. Remove 1-2 mm of the pulp tissue surface and cover with ledermixC. Place calcium hydroxide directly on the exposed pulpD. Pulpotomy using formocresolE. Pulpectomy and immediate root filling9. In a flouridated toothpaste with 0.304% sodium fluoride the amount of flouride ions isA. 400 ppmB. 1000 ppmC. 1500 ppmD. 4000 ppm10. The most important diatary habit for caries development

isA. Amount of sugar intakeB. Frequency of sugar intakeC. Form of sugar intake11. The normal unstimulated salivary flow rate isA. 0.02 ml/minB. 0.2 ml/minC. 2 ml/min12. Titanium is used in dentistryA. In a very pure form in implantsB. In an alloy with aluminium in casting for crowns and bridgesC. In an alloy with nickel in orthodontic wiresD. A and BE. A, B and C13. What is the reason for a tooth to develop pulpitis several years after setting of a fullveneer gold crown? Bacterial microleakage14. How is the regeneration process after damage by injury to odontoblasts working?A. Proliferation Kind regardsNandile