lecture 3

Question 1

connective tissue in the attachment apparatus attaches to what ?

Answer 1

cementum, bone and gingiva, supra crestal

Question 2

in health, hemidesmosomes attach to what

Answer 2

enamel

Question 3

what must happen in order for it to be a true pocket?

Answer 3

probe must extend beyond the CEJ

Question 4

two types true pockets

Answer 4

suprabony and infrabony

Question 5

types of suprabony true pockets

Answer 5

gingival and periodontal

Question 6

types of infrabony true pockets

Answer 6

3,2,1 wall osseous defects or a combination

Question 7

if JE extends to below the bone what kind of periodontitis is it?

Answer 7

infrabony- mod-severe

Question 8

does gingival soft tissue conform to underlying ossesous typography?

Answer 8

no

Question 9

which type of infrabony defect has the best prognosis

Answer 9

3 wall defect

Question 10

what is something you should check for when dealing with infrabony defects?

Answer 10

mobilty of the tooth- hard to fix if tooth is mobile

Question 11

what is reverse architecture?

Answer 11

where bone on buccal and lingual are higher than the bone in the interproximal areas.- more prone to plaque build up, its a factor in production of periodontal disease

Question 12

classifications of bone contour in periodontal disease- 4 kinds

Answer 12

unaffected, resorbed but regular in contour, irregular bony contour, osseous defect formation

Question 13

what is bone sounding?

Answer 13

probing in vertical and horizontal manors in order to find where the bone is, and how deep the pocket is

Question 14

pattern of bone resorption depends on what?

Answer 14

thickness and quality of bone, pathway of inflammation, vascular network from gingival inflammatory lesion into the underlying alveolar process

Question 15

if bone was thin, in what direction would bone loss be?

Answer 15

vertical

Question 16

are infrabony defects more contained at the base or coronally?

Answer 16

at the base

Question 17

what are trt options for infrabony defects?

Answer 17

resective trt of coronal portion or regeneration for predictable contained portion of defect or a combinaiton of the two

Question 18

objectives of osseous resective srg

Answer 18

create contours that permit pts to do correct plaque control, create bone contours which gingival tissue will parallel, permit primary wound closure, expose additional clinical crown for restorative trt

Question 19

disadvantages of osseous resective trt

Answer 19

attachment loss may occur, un esthetic root exposure and hypersensitive roots

Question 20

what is the removal of radicular and interradicular supporting bone to eliminate osseous defects?

Answer 20

ostectomy

Question 21

what is surgical removal of non supporting bone for purpose of reshaping it, to support a physiologic gingival and osseous contour?

Answer 21

osteoplasty

Question 22

indications for osteoplasty

Answer 22

pocket elimination, tori reduction, reduction of thick heavy bony ledges and or extosis, shallow osseous craters, blunted interdental craters, small intrabony defects on buccal or lingual, enhanced flap placement with improved alveolat contour

Question 23

is there alot or a little support removed when correcting osseous problems with surgery?

Answer 23

little should be removed if done correctly, splinting should be addressed before procedure

Question 24

osseous management begins with what ?

Answer 24

buccal and lingual flaps, maintain apporopriate keratinized tissue, margins should be thinned and parabolic in shape with internal bevel

Question 25

apically positioned flaps in conjunction with osseous resection allows for what?

Answer 25

predictability, minimal probing depths, potential to increase zone of attached gingiva, stable base for rstorative dentistry

Question 26

the site of initial osseous lesion of inflammatroy disease is often where?

Answer 26

interdental area in region of septal vessels

Question 27

buccal plate is ______ in nature, where lingual is more _____ in nature

Answer 27

cortical, medullary

Question 28

root trunk is often narrowest for which tooth?

Answer 28

first molar

Question 29

depths of periodontal defects in term of mm is not as significant for multi-rooted teeth as is the relationship to the what

Answer 29

root trunk

Question 30

shallow defect of root trunk is how many mm deep and explain

Answer 30

1-3mm, within dimensions of the root trunk when associated with multi rooted tooth

Question 31

deep defect of root trunk is how many mm and explain

Answer 31

more than 3 mm. and when adjacent to a multirooted tooth, it extends apical to root trunk

Question 32

what can be done in shallow root trunk defects?

Answer 32

high speed carbide or diamond with water used to cause the base of the defect to be the most coronoal position in the interdental septum

Question 33

axial inclination dictates what

Answer 33

how thick bone is in that area

Question 34

bony spines called _____ are removed with_____ bc this can happen?

Answer 34

widows peak, removed with hand ochsenbein, tissue can form around it causing a pocket to form

Question 35

when removing bone, should you leave it in tact in furcation area?

Answer 35

yes

Question 36

radicular bone should be positiioned where in relation to the interdental septum?

Answer 36

apical

Question 37

the degree of scalloping or parabolization determined by what

Answer 37

tooth form and root anatomy and relationship of tooth to bone

Question 38

as mesio distal dimenation increases, bone and gingiva have a _____ morphology

Answer 38

flatter

Question 39

what is double parabolization?

Answer 39

parabolic curve over each root of the molars leaving the bone in furcation area

Question 40

what are vertical grooves placed for?

Answer 40

called sluiceways. placed in interdental areas to narrow the faciolongual dimension of interdental bone in order to reposition the papilla below the contact point

Question 41

the base of the crater is often located _______ to the contact area?

Answer 41

apical