Periodontal Surgery 1 Flashcards
(35 cards)
What is RSD/ PMPR
Removal of deposits (plaque/ calculus) and thin layer of cementum bound endotoxins on the root surface
What are the limitations of RSD?
May not stop progressive/ aggressive disease completely
What cases are RSD of limited use?
Persistent acute episodes e.g abscess
Deep complex bone defect
Severe hyperplasia
Pathology
What are the aims of periodontal surgery?
Gain direct access root surface Visualisation of defect Improve tissue contour Reduction pocket depth - gain tissue attachemnet Removal chronically inflammed tissue Encourage regeneration Removal hyper plastic tissue
What is the chronically inflamed tissue at bottom of pocket and why is it present?
Granulation tissue
Lost bone replaced granulation tissue
What is a gingivectomy?
Resect the excess gingival
What cases are gingivectomny indicated?
Hyperplasia
False pockets
When is open flap debridement indicated?
Deep persistent bleeding/ suppurating pockets
Inflammatory/ intra-bony defect
When is an apical repositioned flap indicated?
For pocket elimination
Crown lengthening
Give example of when crown lengthening can be useful?
When have ginigvally encroaching restoration - inadequate biological width
What needs to be considered prior perio surgery?
Has non-surgical tx been carried out and reviewed?
Is pt suitable - medical
Consent
Oral hygiene adequate
What would be contraindication for gingivectomy?
Inadequate attached gingiva
What surgical technique is used for gingivectony?
Excision
What is a false pocket?
Position of margin of pocket is above the CEJ
Stages of gingivectomy?
- LA
- Pocket depth marking
- Incisions
What LA should be given when carrying out gingivectomy?
Normal and inter-papilla
Inter-papillary - reduce bleeding
What is Goldman’s technique used for?
Pocket depth marking
How is Goldman’s technique used?
Probe to measure depth of pocket
Pierce from outside to create bleeding point
Correspond to depth of pocket
Incision leave 1-2mm pocket depth
What incisions are used in gingivectomy?
External bevel incisions
Base of incision lies bleeding point
Stages of gingival flap?
- LA
- Relieving incision
- Raise flap
- Curettage
- PMPR
- Irrigation
- Suture reposition flap
Difference curettage and PMPR?
Curettage - remove granulation tissue
PMPR - remove deposits and thin layer cementum bound endotoxins
Adv of internal bevel incision?
Preserve tissue while elimination pocket
Adv of reliving incision?
Allows flap to be raise for better visulisation
Adv of crevicular incision?
Maintains soft tissue - indicated aesthetic regions