Indications Of Extraction Flashcards
What’s internal resorption ?
idiopathic slow or fast progressive resorption occurring in dentin of the pulp chamber or root canals of the teeth
What’s the etiology of internal resorption ?
Exact etiology is unknown. Patient may present history of trauma or persistent chronic pulpitis, or history of
pulpotomy.
What’s internal resorption symptoms?
- Pain occurs if resorption perforates the root
- “Pink tooth”
3. Pulp shows either partial or complete necrosis. - In actively progressive lesion, pulp is partially vital and may show
symptoms of pulpitis
5. In anterior teeth, it is typically seen in middle of the tooth in mesiodistal direction but in multirooted teeth, it can be present mesial, distal, or center
What’s external root resorption and it’s forms ?
Resorption is associated with either physiologic or a pathologic process that results in loss of tissues like dentin, cementum, or alveolar bone.
In external root resorption, root resorption affects the cementum or dentin of the root.
It can be
Apical root resorption
Lateral root resorption
Cervical root resorption
What’s external resorption etiology ?
Periradicular inflammation due to
1.Infected necrotic pulp
2.Over instrumentation during root canal treatment
3.Trauma
4.Granuloma/cyst applying excessive pressure on root
5.Replantation of teeth
6.Adjacent impacted tooth
What’s external resorption symptoms ?
1.Asymptomatic during development
2. When root is completely resorbed, tooth becomes
mobile
3.When external root resorption extends to crown, it gives
“pink tooth” appearance
4.When replacement resorption results in ankylosis, tooth
becomes immobile with characteristic high percussion
sound
What’s the symptoms of external resorption ?
1.Radiolucency at root and adjacent bone
2.Irregular shortening or thinning of root tip
3.Loss of lamina dura
What’s the treatment of external resorption?
1.Removal of stimulus of underlying inflammation
.Nonsurgical endodontic treatment should be tried first before attempting surgical treatment
In which cases of Perio disease we need extraction ?
Severe bone loss
Irreversible hypermobility
When RCT impossible
In which case of pulpal disesease the tooth require extraction?
Oblirated root canal
No accessibility due to roots anatomy and oral cavity.
Failure of RCT and impossible to retreat or patient refuse that
Which periodontitis types indicate extraction ?
Apical
Juxtaradicular ( inflammatory osteolytic lesion without communication with Perio pocket and normal perio membrane around apical foramen )
What’s tooth luxation types ?
Intrusive ( apically )
Extrusive ( elongated displaced palataly )
Lateral (dislocation in non axial direction, complicated by labial bone fracture and tissue compression )
PDL disruption + Apical neurovascular bundle repture = tooth mibility
Why we should extract in case of luxation in fractured jaw or even why we remove the tooth in fracture line ?
Interfere with reposition
Which cases of malposition need extraction ?
Tooth cause soft tissue trauma
Block adjacent tooth eruption
Supraeruption when prostho needed on opposite arch.
Why we remove impacted tooth ?
Lack of space to erupt
Interfere with adjacent tooth causing , tooth resorption , bone loss , cyst …
