Periodontal Surgery Flashcards

1
Q

Name 3 categories of periodontal surgery?

A

Resective
Regenrative
Plastic

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2
Q

Name the 6 types of Resective Perio Surgery?

A

Gingivectomy
* Open flap
debridement
* Modified Widman
flap
* Apically
repositioned flap
* Furcation plasty
* Root separation +
resection
+/- ossesous
recontouring

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3
Q

Name the 4 types of Regenrative Perio Surgery?

A

Guided tissue
regeneration +/-
bone substitute
* Biologic root surface
modification
* Other grafting
biomaterials
* Combined therapies

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4
Q

Name the 7 types of Plastic Perio surgery?

A

Free tissue grafts
* Connective tissue
grafts
* Xenografts
* Allografts
* Coronally
positioned flaps
* Tunnel techniques
* Crown lengthening
surgery

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5
Q

Name the 3 indications and purpose of periodontal surgery?

A

The management of residual sites of
deep periodontal pockets.
* Crown lengthening.
* Management of gingival excess.
* Management of gingival recession.

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6
Q

What are the tx options fort non-responding periodontal pocketing?

A

No treatment
* Palliative care
* Continuous non-surgical therapy and
maintenance +/- adjunctive agents
- Surgical regeneration
- Surgical debridgement

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7
Q

Name the short term and long term risks of periodontal surgery?

A

Short:
- Bleeding
- Infection
- Swelling
- Pain
- Sensitivity
Long:
- Mobility
- Recession
- Futher LoA
- Failure
- Black traingles

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8
Q

Name the 6 oral contraindications to periodontal surgery?

A

Poor plaque control
* Poor compliance with non-surgical therapy
* Unrestorable teeth
* Grade III mobility
* Unrestored caries
* Untreated endodontic pathology

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9
Q

Name the 8 medical contradindications to periodontal surgery?

A

Poorly controlled diabetes
* Uncontrolled hypertension
* Immunocompromised patients (e.g. leukaemia)
* Immunosuppressive drugs (e.g. cyclosporin)
* Chemotherapy
* Radiotherapy
* High risk of MRONJ
* Increased bleeding risk - INR ≥ 4
- Multiple antiplatelet drugs
- NOAC

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10
Q

Decision making balance between non-surgical and surgiucal approach?

A

Non-surgical:
- Pockets < 6mm
- Systemic conditions with
adverse effect on healing
- Limited plaque control
- Limited motivation
- Other uncontrolled dental
disease
- Limited ability to understand
and/or tolerate surgery

Surgical:
- Pockets ≥ 6mm
- Systemic health
- Excellent plaque control
- Excellent motivation
- No other dental disease
- Good ability to understand
and/or tolerate surgery

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11
Q

Primary goals of surgical perio treatment?

A

To create accessibility for optimal root
surface instrumentation.
* To establish a gingival morphology that
facilitates efficient oral hygiene as
performed by the patient.

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12
Q

Secondary goals for surgical perio treatment?

A

Decrease pocket depth to enable
stability an maintenance
* Reduce BoP and disease activity
* Improve tooth longevity

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13
Q

What are the 5 general principles of periodontal surgery?

A

Flap must have a broad base to enable sufficient blood supply
* Flap length: width should not exceed 2:1
* Flap big enough to provide access to the roots with bony defects
* Mucoperiosteal flaps should be used, except when grafting
* Minimal tension when suturing

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14
Q

Name the 8 principl;es of MIST flap design?

A

Performed under magnification using microsurgery equipment
* Minimal incisions
* Continuous incisions avoided
* Vertical incisions avoided
* Extensive reflections avoided
* Flap reflection by sharp dissection
* Use of regenerative materials & EMD where possible
* Flaps secured using vertical matress sutures

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15
Q

What are the idnciations and contrainditcaitons for MIST?

A

Indications:
- isolated defects
Contra:
- Generalised horizontal defects
- Multiple interconnected defects

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16
Q

Name the 5 advantages of MIST?

A

Reduced post-operative healing time
* Reduced post-operative morbidity
* Enhanced aesthetic outcomes
* Reduced post-operative recession
* Improved papilla height & contour

17
Q

Name the 5 disadvantages of MIST?

A

Technique sensitive
* Reduced access
* Magnification & microinstruments required
* Not a universal technique, apply only when appropriate
* May require longer operating time

18
Q

What factors lead to failure of surgical tretament of perio surgery?

A

Poor technique
* Failure to remove granulation tissue/tissue tags
* Residual calculus
* Reverse architecture
* Improper flap placement
- Inadequate maintenance

19
Q

Name the 4 prerequisites of Guide bone and itssue regenration?

A

P - Primary closure &
undisturbed healing
A - Angiogenesis to provide
blood supply & undifferentiated
mesenchymal cells
S - Space for bone infill
S - Stability of wound

20
Q

Name the 6 different bone graft materials?

A
  • Autografts – same individual – harvested from donor site
  • Isografts – genetically identical
  • Allografts - same species
  • Alloplasts - synthetic
  • Xenografts - different species
  • Bioactives – e.g. enamel proteins, PRGF often combined with
    other material that provide scaffold
21
Q

Principles of suturing for perio surgery?

A

Least reactive suturing
material
* Minimal amount of suturing
material below the graft
* Suture close to tissues
* Suture removed as soon as
possible

Interrupted suture – most commonly
used suture in periodontal surgery

Modified vertical mattress sutures
ideal for interdental tissue closure

22
Q

Factors influencing perio surgery outocme?

A

Surgery successful for group who received professional cleaning
every 2 weeks and were able to maintain good oral hygiene

23
Q

Post-surgical care advice for perio surgery?

A

Over the next week eat only soft food that requires little chewing, do not
use the teeth in the surgical site for chewing
* No vigorous movement of fluids
* Use of HSMW after food (+/- chlorhexidine)
* Do not brush the teeth that had surgery for 48 hrs, brush other teeth as
normal twice daily during this period
* Reduce physical activity for 48 hrs
* Refrain from smoking as tobacco smoke will irritate the wound and delay
healing
* Pain relief, immediately, paracetamol/ibuprofen
* Swelling to be expected, should resolve in 4-5 days