Root resorption Flashcards
(23 cards)
Name the two types of internal root resorption
Inflammatory and replacement
In internal inflammatory resorption what is the Pathogenesis
The coronal pulp is necrotic, the apical pulp is vital
What intervisit medicament would you use for inflammatory internal root resorption
Non setting calcium hydroxide
Radiographically how would we see internal inflammatory resorption
It would be a ballon shape centered in the canal - it does not move with a beam shift
What is the most common way to treat internal inflammatory resorption
Orthograde endodontic only
Inflammatory replacement resorption is something rare to see however when it is seen how may it look radiogrpahically
Trabeular pattern in the pulp as the pulp is being replaced by something mineralised
What is root resorption
It is the non bactericidal destruction of dental hard and soft tissues due to the interaction of clastic cells
Name the 4 types of external root resorption
Inflammatory
Cervical
Replacement
Surface
What is the pathogenesis of external inflammatory resorption
The pulp is necrotic ; bacterial or dental trauma in origin
What may be one problem with orthograde endodontic treatment in a tooth with external inflammatory resorption
Due to the resorption of the root it may be difficult to get a good apical seal
The aetiology for external cervical root resorption can be completely incidental - what is our treamtent options for this
If we are to monitor - resorption will likely continue
Extraction and prosthesis replacement
Internal repair and orthograde endodontic
Radiographically what would you see for a tooth that has external surface resorption
The PDL will be intact and then were be no PAP
You examining a radiograph and notice root resorption around the the upper central’s - there is no PAP and the PDL is intact , what is the most likely cause of this persons resorption
Orthodontic treatment
This is external surface resorption
There are 4 aetiolgies for external surface resorption - what are they
Orthodontic treatment
Ectopic teeth
Pathological reasons
Idiopathic
What is the treatment for surface external resorption
The pulp is healthy endo will have no effect
Remove the cause of the resorption to stop it
What teeth in orthodontic treatment are usually worse affected by resorption
The teeth used for anchorage
Clinically what things may you observe on a tooth with external surface resorption
The tooth may have some mobility
And there will be a positive sensibly test
How may a tooth with external replacement resorption present
Infraocclusion
A tooth with external replacement resorption will not be TTP but what may you notice on tapping it
High pitched note
Why does external replacement resorption happen
Trauma
Significant injury to periodontium such that osteoclasts are now in contact with the root dentine and they resorb it
Why does external cervical root resorption not tend to affec the pulp
As the predentine protects it
In a patient with external replacement resorption what treamtent do we dp
Decoronate the tooth
Remove the crown to alveolar level and allow the root to resorb
This protects bone volume
Adjacent teeth and periodontium developed normally
Tooth replacement then wiht RBB or RPD
