1. Rationale of Periodontal Surgery Flashcards

1
Q
[reads slide]
\_\_\_\_ is not diagnostic for perio disease
◦ Gives general overview
◦ But it doesn't show exactly what
interdental bone levels are

____ is better tool to diagnose perio disease

A

Pan

FMX

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2
Q

BOP

• Until new classification published in 2018, gingivitis was simply recognized by ____ and CAL = ____

A

BOP

0

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3
Q

CAL

CAL = 0

OR

CAL > 0 with no evidence of progressive ____

A

attachment loss

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4
Q

Identifying a Gingivitis Case

BOP score ≥ ____% of sites

    • ____ (BOP ≥ 10% and ≤30%)
    • ____ (BOP > 30%).

It can occur on either ____ peridontium or ____ peridontium

A
10
localized
generalized
intact
reduced
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5
Q

Periodontitis

◦ Periodontitis classified as deep ____, ____ and ____

A

PDs
CAL
BOP

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6
Q

Periodontitis (OLD CLASSIFICATION)

Extent:
Generalized: CAL in >____% of teeth
Localized: CAL in ≤ ____% of teeth

Severity:
Slight: CAL= ____mm or radiographic BL ≤____% and PD < ____mm

Moderate: CAL= ____mm or radiographie BL ____% & PD = ____ mm

Severe: CAL ≥____mm or radiographic BL >____% and PD ≥ ____ mm.

A

30
30

1-2
15
5

3-4
16-30
5-6

5
30
7

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7
Q

Identifying a Periodontitis case

____ CAL at ≥2 non-adjacent teeth,

OR

Buccal or oral CAL ≥____ mm with pocketing >____ mm at ≥2 teeth

the observed CAL is not due to non-periodontal causes:-

    • gingival ____ of traumatic origin
    • caries extending in the ____ area of the tooth
    • Not on the distal aspect of a ____ molar and associated with malposition or extraction of a ____ molar
    • an endodontic lesion draining through the ____
    • ____ root fracture
A

interdental

3
3

recession
cervical
second
third
marginal
vertical
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8
Q

• Identify first the intact vs reduced periodontium
◦ New classification
◦ If still confused about these terms, refer to classification lecture

• Pt classified as Clinical Health, Gingivitis Case, or Periodontitis Case
• [reads through Gingivitis Case]
• Periodontitis Case
◦ ____ (scored from 1-4) reflects the severity of disease and complexity of treatment
◦ ____: localized, generalized, or incisor-molar
◦ ____
‣ Risk factors: smoking, diabetes

A

stage
extent
grade

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9
Q

What’s the primary etiology of gingivitis

____

A

plaque

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10
Q

What is the goal of treatment in periodontal disease?

  1. Elimination of the etiologic factor
    • ____
2. Elimination of the local contributing factors 
• \_\_\_\_
• Pockets
• \_\_\_\_ - Crown margins
• Cervical enamel projections
• \_\_\_\_ groove
  1. Control of the systemic contributing factors
    • ____
    • Diabetes
    • ____
A

microbial plaque

calculus
overhangs
distopalatal

smoking
medications

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11
Q

What is the Sequence of Treatment in Periodontal Disease?

I. Phase I Therapy (non-surg)
Step 1: Plaque or Biofilm Control ____

Step 2: Removal of ____ or Biofilm and Calculus
Use of antimicrobial agents if needed,
Treatment of occlusal trauma
Extraction of hopeless teeth

Step 3: ____ and/or replacing Defective
Restorations and Crowns “contributing to the pockets”)

Step 4: Management of ____ Lesions

A

instruction
supragingival and subgingival plaque
recontouring
carious

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12
Q

What is after phase I therapy?

  1. Re-evaluation
    • “Assess improvements following initial therapy”
    • Ideal time ____ weeks
    • Check ____, ____, ____
    • Assess compliance to ____
    • Assess the need for retreatment or referral
    • Assess the tissue condition prior to surgical
    tx

It is very important to note BOP (she sees this missing a lot on charts)
You are assessing oral hygiene of pt and their compliance to your instructions
◦ If you see no improvement, you must ____ yourself and give OHI again
◦ Bring pt mirror, brush, and floss, make them engaged and make them practice in front of
you

A
4-6
PD
BOP
mobility
OHI
repeat
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13
Q

Additional Treatment Following Re-evaluation

Active therapy should continue until all areas of ____ disease have been eliminated

• Patients who have 5mm or deeper pockets with BOP cannot go into ____

• Non-surgical
◦ [reads list]
◦ You see some factors like overhang margins that you can detect
‣ Maybe there was a lot of inflammation in the first round of SRP, but now you can see it better and correct it
• [reads surgical list]

A

unresolved

maintenance

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14
Q

What is the Sequence of Treatment in Periodontal Disease?

3 possible options after phase I re-eval

Phase I Therapy (non-surg)

  1. ____
  2. ____
  3. ____
A

re-evaluation
phase II therapy
periodontal maintenance

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15
Q

• Let’s say after Phase 1 Re-eval, you decide to send pt to periodontist for surgical treatment ◦ They will do necessary surgery and follow up with pt
◦ depending on type of surgery, you cannot probe
‣ If an osseous surgery was done by periodontist, cannot probe for at least ____ months
‣ If a regeneration treatment was done (Ex: GTR), no probing for ____ months
◦ You may see patients like this in clinic for recalls, encourages communication between student dentist and periodontist

A

3

6

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16
Q

• Comprehensive charting must be updated every 12 months
◦ If you don’t need comprehensive charting, you still must do ____
◦ Still checking probing depths, BOP, mobility, furcation,….just coding differently on recall 2 form
• This is important because if you see any sites breaking down after treatment,
patient must go through phase 1 therapy again

A

PSI (perio screening index)

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17
Q

Critical Probing Depth

  • Study compared the effect of SRP alone vs. modified Widman flap (MWF) with the resultant level of attachment and in relation to initial pocket depth.
  • SRP: caused CAL in pockets < ____ mm while gain of attachment in ____ pockets.
  • MWF: induced CAL if performed in pockets < ____ mm but resulted in a ____ gain of attachment than SRP in pockets deeper than 4.2 mm.
A

2.9
deeper

4.2
greater

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18
Q

Limitation of phase I (non-surgical SRP)

____ teeth planned for extraction with 42 pockets with PD= 2-10mm

____ performed with ultrasonic and hand instruments

Root surface assessed for ____, calculus, and signs of instrumentation under magnification

A

7
SRP
residual plaque

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19
Q

Limitation of phase I (non-surgical SRP)

Instrument limit
The maximum pocket depth the instrument tip can variably reach is
• ____ mm (____mm)

Curette efficiency
The maximum depth where a plaque and calculus-free surface can be established
• ____ mm (____mm)

A

5.52
2-10

3.73
1-6

20
Q

Limitation of phase I non-surgical SRP

• No difference in shallow pockets - notice it is still not ____%, but it is considered a successful treatment

% of tooth surfaces that are calculus-free following different modalities (SRP alone vs SRP + flap) classified according to PD

Probing Depth (1-3)
SRP: ____
SRP + FLAP: ____

Probing Depth (4-6)
SRP: ____
SRP + FLAP: ____

Probing Depth (>6)
SRP: ____
SRP + FLAP: ____

A

100
86
86

43
76

32
50

21
Q

Limitation of phase I non-surgical SRP

82 Periodontal patients from Nebraska
7-year randomized controlled clinical trial Split-mouth design: prophy, SRP, MWF, APF

Unstable sites: ≥ ____mm CAL loss from baseline Data stratified according to PD at baseline

A

3

22
Q

Limitation of phase I non-surgical SRP
1. Periodontal breakdown in sites that had initial PD ≥ ____ mm, was more in ____ > MWF > APF

  1. Breakdown rate infurcation areas following different treatment modalities:
    - SRP ____%
    MWF 5.9%
    APF 2.6%
A

5
SRP
8.4

23
Q
  • Longitudinal studies found that all patients should be treated initially with ____, root planing, and plaque or biofilm control and that a final decision on the need for periodontal surgery should be made only after a thorough ____ of the effects of phase I therapy .
  • Don’t move on to phase 2 until you have done a thorough ____
A

scaling
evaluation
evaluation

24
Q

Which of the following describes the main goal of surgery as part of a patient’s overall periodontal therapy?

  • ____ the depth of the periodontal pocket
A

decreases

25
Q

Types of Periodontal surgical therapy

  • ____ disease
  • ____ plastic
  • ____
A

periodontal
periodontal
pre-prosthetic

26
Q

Phase II Therapy

Objectives:
1. Controlling or eliminating ____ disease
2. Correcting ____ conditions that favor
periodontal disease, impair aesthetics, or
impede placement of prosthetic appliances
3. Placing ____ to replace lost teeth and
improving the environment for their placement and function

A

periodontal
anatomic
implants

27
Q

Phase II Therapy

Objectives:

  1. Controlling or eliminating periodontal disease
    a) To access the ____
    b) To reduce or eliminate ____
    c) To ____ soft and hard tissues to attain a harmonious topography.
A

root surface
pocket depth
reshape

28
Q

Resective Surgery

Gingivectomy
Indications:
1. Elimination of suprabony pockets if the pocket wall is ____ and firm
2. Elimination of gingival ____

• Contraindications:-

  1. Access to ____ required
  2. ____ zone of keratinized tissue
A

fibrous
enlargements

bone
narrow

29
Q

Resective Surgery

Flap surgery
• Indications
Access for root \_\_\_\_ 
Gingival \_\_\_\_
Osseous \_\_\_\_
Periodontal \_\_\_\_
Five different flap techniques are mostly used: \_\_\_\_ flap
Undisplaced flap,
\_\_\_\_flap,
Papilla preservation flap
\_\_\_\_ flap (distal wedge)
A

instrumentation
resection
resection
regeneration

modified widman
apically displaced
distal terminal

30
Q

Apically positioned flap(APF)
• Positioning flap in more ____ position to eliminate pocket
• ____ structures recontoured

Modified Widman Flap (MWF)
• MWF is similar to APF, except ____ aggressive because removing less tissue
◦ Bone is ____ and flap is sutured back on

A

apical
osseous

less
recontoured

31
Q

Papilla Preservation flap

• ____ is included in the buccal flap for preservation

A

papilla

32
Q

Distal Wedge technique

  • Very ____ procedure
  • ____ of terminal tooth
  • Done to eliminate ____
A

common
distal
pocket

33
Q

Regenerative Surgery

Regeneration of ____, CT, PDL, and cementum: Guided tissue regeneration

Using ____ and membranes

We will have separate lecture for this Vertical defect on messiah of #24 [bottom right] re-entry surgery to show that bone filled in defect

A

bone

bone grafts

34
Q

Common conditions we face were tried to be corrected in new classfication, one of which is tissue biotype
If you can see probe, 1mm or less (thin)
In cases when pt goes through ortho and teeth need to be moved bucally, they are at risk for recession if they have thin biotype

Aberrant ____
◦ Can cause recession if positioned ____
◦ Frenum between 8 and 9 can cause diastema
‣ Frenectomy must be done for ortho treatment of diastema to be successful

Lack of ____
◦ A minimum amount of KT is not required to prevent attachment loss ONLY when the pt has ____ plaque control

Decreased ____ depth
◦ Can be more difficult for pt to brush
◦ Removable prosthesis, not enough retention

____
◦ Pt complaints
‣ Sensitivity, aesthetic
◦ Want to do some kind of root coverage procedure

A

frenum
high

KT
good

vestibular

recession

35
Q

Inconsistent ____
◦ Usually lateral is positioned more occlusally than centrals
◦ Aesthetic - want gingival margin to be consistent

Gingival ____
◦ Aesthetics and plaque retention are problems
◦ Perform gingivectomy

excessive gingival display is an aesthetic concern

A

gingival margin

enlargement

36
Q

Phase II (surgical therapy)

  1. Correcting anatomic conditions that favor periodontal disease, impair aesthetics, or impede placement of prosthetic appliances
    a) To create or widen ____; “Plastic surgery techniques”
    c) To cover ____ root surfaces, and to recreate lost papillae; “Esthetic surgery techniques” (____)
    e) To modify the ____ and neighboring tissues to receive prosthetic replacements; “Pre-prosthetic techniques”
A

KT
denuded
gold standard
periodontal

37
Q

Tx: coronally positioned flap with acellular dermal matrix

• Notice that the tissue is ____ after procedure

100% ____ coverage
100% ____ coverage

A

thicker
root
recession

38
Q

Tx: free gingival graft

  • Incision made at ____
  • Graft taken from ____ of pt

• Much more ____ after procedure

A

MGJ
palate

KT

39
Q

Crown lengthening

Esthetic: mainly for ____ reasons
Treatment for gingival ____

Functional: mainly for restorative reasons
To expose sub gingival ____, fracture or restorative margins
To increase ____
To avoid violation of ____ by the restoration

A

esthetic
excess

caries
retention
biologic width

40
Q

Biologic width concept

30 human autopsy specimens with a total of 325 surfaces

Average sulcus depth was ____ mm
Average epithelial attachment was ____ mm Average connective tissue attachment was ____ mm Average biologic width was ____ mm

A
  1. 69
  2. 97
  3. 07
  4. 04
41
Q

What is the importance of biologic width?

In esthetic crown lengthening:
The biologic width needs to be re-established either with ____ removal, osseous/ bone removal or combination.

In functional crown lengthening:
Adequate space needs to be allowed from the margin of the (future) ____ for the development of the ____

A

soft tissue
restoration
biologic width

42
Q

What’s the etiology of the gingival display?

____

• ____ eruption and ____ induced are also correct
answers
• very common in african american population to require ____ after ortho treatment

A

Plaque
passive
medically

gingivectomy

43
Q

Phase II (surgical therapy)

  1. Placing implants to replace lost teeth and improving the environment for their placement and function
    - including techniques for site developments for implants (i.e.: ridge ____, sinus ____)
A

augmentation

lifting

44
Q
  • Vertical and horizontal bone loss

* Building the ____ ridge back is more unpredictable than horizontal

A

vertical

45
Q

Freeze-dried bone graft and membrane on top

◦ Purpose of membrane: ____ and ____ (want osteoblasts to regenerate area)

A

space maintenance

cell exclusion

46
Q

What surgical technique should we use?

Selection is based on the following considerations:

  1. characteristics of the ____, relation to bone, and configuration
  2. accessibility to ____, including furcation involvement
  3. existence of ____ problems
  4. response to ____ therapy
  5. patient ____, including the ability to perform effective oral hygiene and stop smoking
  6. ____ and general health of the patient
  7. ____ considerations
  8. previous ____ treatments
A
pocket depth
instrumentation
mucogingival
phase I
cooperation
age
esthetic
periodontal