apical surgery Flashcards

1
Q

list the different names of apical surgery

A
  1. Apicectomy
  2. root end surgery
  3. Endodontic surgery
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2
Q

List the different classifications of Endodontics surgery

A
  1. Incision and drainage
  2. Periodical surgery
  3. Perforation/ resorption repair
  4. Root resection
  5. Diagnostic surgery
  6. Hemisection
  7. Trephinaltion
  8. Decompression
  9. Intension preimplantation
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3
Q

In modern day what do we usually do instead of Endodontics surgery

A

Give implants

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4
Q

What does diagnostic surgery often result in

A

Extraction of the tooth as a fracture is seen

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5
Q

way is trephination

A

crating a hole in the bone to encourage healing (v rare)

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6
Q

What are the indications fro Endodontics surgery

A
  1. to eliminate/ redice infection of Endodontics origin where this is not possible non surgically
  2. to repaire damage
  3. to assess teeth where a definitive diagnosis cannot be made without direct visual access of histological examination
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7
Q

What damage to root canal may we need to surgically manage

A

pathological eg sclerosis root

iatrogenic: instrument passed curvature of root

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8
Q

What carries a better prognosis: surgical or non surgical Endodontics surgery

A

In the vast majority of cases non-surgical (re)treatment will carry a higher prognosis

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9
Q

What are the contra indications for endodotnic surgery

A
  1. Operator experience
  2. Patient factors eg physiological and medical
  3. Access to surgical site
  4. local anatomical factors eg sinus, nerves and vessels
  5. poor restorative or periodontal prognosis
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10
Q

Which teeth are difficult to carry apical surgery on

A
  1. Lower incisors as they are slightly retroclined
  2. upper canines as they are Long
  3. Patients with high frenum
  4. Molars if patietn is suffering from trismus
  5. Palatal roots of molars due to proximity to sinuses
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11
Q

What considerations do we need to take when undergoing surgeries

A
  1. Soft tissue considerations

2. Hard tissue considerations

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12
Q

How do we manage the soft tissues

A

Flap design is a compromise between:

  1. access
  2. vision
  3. Recession
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13
Q

What factors affect flap design

A
  1. size and site lesions
  2. Presence of crowns/ veneers
  3. depth of sulcus
  4. Presence of arena, muscle attachments, bony prominences, thin tissue biotypes
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14
Q

Name the different types of name flap design we use

A
  1. Full mucoperiosteal flaps

2. Limited Mucoperiosteal Flaps

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15
Q

What shape can full mucoperiosteal flaps be

A
  1. Triangular (1 relieving incision)
  2. Rectangular (2 relieving incisons)
  3. Trapeziod (2 relieving incisons)
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16
Q

What does good flap design ensure

A
  1. Easy to reflect and reposition
  2. Easy to access the lesion
  3. Good healing
  4. Good lead to recession post op
17
Q

What shape can the Limited Mucoperiosteal Flaps have

A

Submarginal

papilla base

18
Q

What are the benefits of Limited Mucoperiosteal Flaps

A
  1. Avoids recession

2. easy reference points fro reattachement

19
Q

What are the limitations of Limited Mucoperiosteal Flaps

A
  1. Technically more demanding
  2. Access potentially more limited
  3. Risk of scarring
20
Q

Once the flap is raised what do we need to do

A

Identify the lesion and apex

21
Q

What do you usually see in the bone when you’ve raised the flap

A

A fenestration where osteotomy can be prepared to enable removal of lesion and resection

22
Q

How is root end resection usually carried out

A

With a burr

23
Q

Which area of the tooth is hardest to clean

A

Apical 3mm

24
Q

what angle should our bevel be at fro root end resection

A

90 degrees

25
Q

What do we do once the root end has been resected

A

Retropreparation using ultrasonic tip

2-3mm GP removed

26
Q

After removing GP what do we do

A

Pack root filling into retroprep cavity

fill with MTA or other bioceramic cement

27
Q

What pre op factors do we need to consider prior to eno surgery

A
  1. Age
  2. Sex
  3. Health
  4. Tooth location
  5. Clinical signs and symptoms
  6. Size of lesion
  7. Bone loss
  8. Coronal restoration
  9. Resurgery
28
Q

What INTRA operative factors can affect outcome of Endodontics surgery

A
  1. Degree of bevel
  2. Level of resection
  3. Retrograde preparation method
  4. Retrograde root filling / material
  5. Haemostatic agent
  6. Magnification
  7. Bone grafting