lecture 2 Flashcards
(28 cards)
mild periodontitis has how much bone rx bone loss? how many mm. how much clinical attachment loss?
15% 2-3mm
1-2mm
moderate periodontitis has how much bone loss and how many mm? how much clinical attachment loss?
16-30% >3 <5, 3-4mm
severe periodontitis has how much rx bone loss and how many mm? how much clinical attachment loss?
> 30%
5mm
5mm or more
what are a few things you need in order to have periodontitis, not just one deep probing?
BOP, inflammation, increased probing depths associated with clinical attachment loss and possibly rx bone loss
when would you say a reduced periodontium?
when patient has undergone perio trt and they have recession but little probing depths
almost impossible to remove bacteria from pocket greater than how much?
5mm
what is more important for a periodnititis patient? periodontal maintenance or surgical SRP?
maintenance
greater palatine foramen and artery are located where?
2mm away from posterior border of hard palate. in nueromuscular bundle in juncture of palatine and alveaolar process
avoid taking tissue beyond ___mm in shallow palate, _____mm in a average palate and ___mm in a high palate
7,12,17
what is in the incisive foramen and what does it supply?
nasopalatine bundle, anterior palate from canine-canine
two types of curettage
subgingival root and gingival curettage
is gingival curettage and gingivectomy used for infrabony or suprabony defects?
supra bc cant get to the bone
explain the difference between full thickness flap and partial thickness flap
full is all the way down to the bone, and youre taking the periosteum with the flap. partial does not go all the way to the bone, and periosteiumis left with crest of bone
what can impact on how you design your incision?
how much keratinized tissue is remaining.
if little keratinized tissue is remaining, what flap design should you do?
split
benefits of full thickness flap
allows direct access to bone, easier and faster
benefits of split thickness
maintains periosteum which allows you to do apical positioning of the flap leading to preservation of keratinized tissue. technique sensitve bc flap is thinner, risk of perforation
3 suturing techniques he talked about
single interupted suture, continous sling suture and vertical mattress
downfall of single interupted suture?
tend to pull flap more caronally
needle should be inserted into the tissue at what angle? and in what location
90 degrees. in keratinized tissue, near papilla not in the middle of the tooth
portion of flap most prone to sloughing during healing
tip of papilla and margin
silk, PTFE-gortex- stretched teflon are what kinds of sutures?
non resorbable
gut, chromic gut, vicryl (braided), monocryl, polysorb, polydioxanone and caprosyn are what kinds of sutures?
resorbable
3 shapes of needles
half curve, straight and 5/8 circle
