Mod 3

Question 1

What is the first step in the sucessful tx of a furcation

Answer 1

identify its presence and the extent and specific anatomy of the furca

Question 2

where is furcation more common and severe

Answer 2

in the first molars

Question 3

are furcations more common in the max. or mand

Answer 3

max

Question 4

how to proximal furcations appear on a radiograph

Answer 4

small triangular shadows pointing to the furcation on either the mesial or distal surfaces, called furcation arrows

Question 5

where are max mesial furcations typically located

Answer 5

1/3 of distance from lingual surface and 2/3 distance from buccal

Question 6

what part of the ultrasonic scaler should you use in a furcation

Answer 6

the rounded back

Question 7

what are the best ultrasonics to use in a furcation

Answer 7

curved or contra angle slim style insert

Question 8

what are indications for files

Answer 8

removal of tenacious calc and overhanging amalgams, removing burnished calc

Question 9

when are perio files contraindicated

Answer 9

-calc that is not tenacious and that is removable with other instrumentation

Question 10

how is the file adapted to the calc deposit

Answer 10

it is parallel

Question 11

what are the angles of the files to the shank

Answer 11

90 or 105

Question 12

what are the 2 classes of files

Answer 12

function working and finishing

Question 13

which files have cutting edges that are farther apart

Answer 13

working files

Question 14

what are diamond coated files indicated for

Answer 14

removal of biofilm, light calc and or residual/fine calc

furcations, root depressions and developmental grooves

Question 15

should a file be used directly on root surfac

Answer 15

no only directly on calc

Question 16

What kind of strokes should be used

Answer 16

short crushing/fragmenting stroke

Question 17

when is a perio file used in sequence

Answer 17

• prior to ultrasonic and curet use

- or interchangebly with ultrasonic inserts before curet use

Question 18

the barnhart 5/6 is a universal curette and is used in the posterior teeth

Answer 18

both statements are true

Question 19

where are the mini gracey curets used

Answer 19

in deep narrow pockets and furcations

Question 20

a universal curet has what kind of back

Answer 20

rounded

Question 21

a sickle scaler has what kind of back and tip

Answer 21

triangular and pointed tip

Question 22

what is the proper stroke for files

Answer 22

crushing

Question 23

if a patient has furcation arrows what classifcation of patient would they e

Answer 23

class 2 or 3

Question 24

mandibular facial furcations can be accessed with

Answer 24

gracey 7/8 ,11/12, 13/14, 15/16