Extraction chapter
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Indications for Extraction

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Mobile Teeth

Mobile teeth are caused by advanced periodontal disease and bone loss.

 
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Crowding of Teeth

Teeth should be considered for extraction when they are interfering with occlusion or crowding others (e.g. supernumerary teeth).

 

 

 

Retained deciduous canine
Retained deciduous canine. Note food entrapment and lingual deviation of permanent (304) canine tooth

   

Retained Deciduous Teeth

Never have two teeth of the same type in the same place at the same time. This is the rule of dental succession.

 

Severe class 2 malocclusion
Severe class 2 malocclusion. Note retained 704 and 604 causing lingual deviation of 304 & 204

   

Teeth in the Line of a Fracture

Consider extracting any teeth in the line of a fracture of the mandible or maxilla.

 

Oblique fracture of mandibular body rostral to molars
Oblique fracture of mandibular body rostral to molars

   

Teeth Destroyed by Disease

Teeth ruined by advanced caries, feline neck lesions etc. should be considered for extraction.

 

Severe class 1 carie in occlusal pit of 109
Severe class 1 carie in occlusal pit of 109

Advanced feline odontoclastic resorptive lesion on buccal surfaces of 409 and 407
Advanced feline odontoclastic resorptive lesion on buccal surfaces of 409 and 407

   

Endodontically Diseased Teeth

Teeth with damaged or contaminated pulp, which the client elects not to have treated endodontically.

 

Oblique fracture of buccal 104 crown with pulp exposure
Oblique fracture of buccal 104 crown with pulp exposure

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