Which of the following is not true about pin-retained amalgam restorations 1) Tooth preparation is conservative 2) Proper occlusal contacts can be achieved 3) Resistance is increased 4) Retention is increased
Conservative DentistryAnswer: 3
All of the following are true for light cure composite except 1) Held at distance of 1mm from tooth 2) Use orange glass shield for eye protection 3) Curing cycle of 40-60 seconds 4) Adding increments of 1-2 mm
Conservative DentistryAnswer: 3
The portion of the tooth where the enamel rods are perpendicular to the tangent of the surface 1) Middle thirds of all axial surfaces 2) Incisal or occlusal thirds 3) Gingival thirds 4) All of the above
Conservative DentistryAnswer: 1
Restoration of angle fracture of anterior teeth can be done by 1) Amalgam 2) Composite resin 3) Glass ionomer cement 4) All of the above
Conservative DentistryAnswer: 2
For class V direct filling gold preparation, retention points are 1) In the enamel completely 2) In the occlusal and gingivall line angles 3) In the mesial and distal walls 4) In the axial wall completely
Conservative DentistryAnswer: 2
In which type of lesion "eburnation" of the dentin is seen? 1) Acute caries 2) Chronic caries 3) Arrested caries 4) Root caries
Conservative DentistryAnswer: 3
The advantage of glass ionomer cement reinforced with metal particles is 1) Decreased strength but biocompatibility 2) Increased resistance to abrasion 3) Better colour 4) Ease of manipulation
Conservative DentistryAnswer: 2
Twist spiral drills used for making pin channels should 1) Be used with speed below 500 rpm 2) Be used only in clockwise direction 3) Be made of high quality cutting steel 4) All of the above
