rubber dam

Question 1

what are the benefits of rubber dam?

Answer 1

dry field, access and visibility, improved properties of dental materials, protection of patient and operator, operating efficiency

Question 2

what are other methods of tooth isolation?

Answer 2

absorbents, saliva ejectors, high volume evacuators, retraction cord.

Question 3

what are the disadvantages of rubber dam isolation?

Answer 3

time consumption, patient discomfort, difficult use, precluded use in some systemic conditions like asthma, epilepsy, nose obstruction.

Question 4

what is the purpose of the clapm?

Answer 4

anchors the dam to the most posterior tooth to be isolated, retracts gingiva

Question 5

name the clamp types: anterior teeth?

Answer 5

butterfly for anterior teeth,

Question 6

what clamp is used for gingival tissue retraction?

Answer 6

B4

Question 7

how many teeth need to be isolated for restorative work ususally?

Answer 7

minimum 3 , 1 tooth posterior one ant to the operated tooth but the general rule is 4 teeth i.e. 1 posterior 2 anterior to the tooth.

Question 8

what if we cant achieve anterior stabilisation with wedges?

Answer 8

we do two clamp stabalisation- which is the only situation when bow is placed mesially.

Question 9

guidelines for the range of teeth for anterior?

Answer 9

first premolar to first premolar

Question 10

alternative guidelines for range of teeth for canine?

Answer 10

first molar to opposite lateral incisor

Question 11

guidelines for premolar isolation?

Answer 11

2 teeth distally, to opposite lateral incisor

Question 12

guidelines for molar teeth isolation?

Answer 12

as far distal as possible to lateral incisor

Question 13

what are the consequences of prongs being positioned too distal or too mesial?

Answer 13

interference with matrix and wedge placement, gingival trauma, may not achieve complete seal of the anchor tooth