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Disassembly and retreatment
The opinions within this web page are not ours. Authors have been credited
for the individual posts
and images where they are. -

The first question of this referring dentist was whether I could do 
surgery on tooth # 37, last abutment of a 5 unit bridge. I discussed 
the other  treatment options with him, namely extraction and placement 
of 2 implants, retreatment or surgery.

I am not so eager to do surgery on those second molars...............
....., and the dentist and the patient didn't want an extraction, so I 
was leaning towards retreatment, but I found it pretty risky to try to 
remove the 5 unit bridge. I decided to cut the bridge distal of
tooth # 35, to remove the posts and retreat.

It appeared to be a C shape canal. 2 visits, Ca(OH)2 placement between visits. I thought it was a good idea to place 3 fiber posts. As you can see there is not much tooth structure left (which was already the case from the start), but after discussing this with the restorative dentist, he thought it would be no problem to use this tooth as an abutment for a new bridge. I will re-evaluate after 6-12 months. If the AP is healing, then the dentist will make a new 5-unit bridge. If not, then he will as yet do an extraction and place 2 implants. Marga Nice looking results on the re treatment and this looks like a perfect tooth for posts to retain the core et al. BUT still might be better to use a single crown and an implant into the edentulous area. How deep did you trough before you were satisfied it was not a navigatable C canal? Did the metal post take a lot to remove? - Alan Cady
Toughest root canal

Retricted mouth opening

Deep decay

Upper second molar

Open sinus lift

Implant after extraction

Implant # 20

Implant # 30

Irreversible pulpitis

2 step necrotic case


Lesion on MB

Endo perio case

Surgery or implant

Silver point removal

Series of cases

SS reamers and files

Single visit RCT

Ortho resorption

Apico retreatment

Apical perforation

Funky canine

Crown preparation

Two tough molars

Epiphany recall

To squirt or not

Core distal end

MTA miracles

Pain with LR

Instrument removal

3 canals upper Bi

Acute pain

Dental decay

Calcified chamber

Mandibular first molar

Ultrasonic activation


TF and patency

Interim dressing

Huge lesion

Tough distal canal

Debris in pulp chamber

Access and success

Restricted mouth opening

Broken drill fragment

MB2 or lateral

Gutta percha cases

Another calcified

Big Perf

Canals and exit

Dam abuse

Amalgam replacement

Simple MTA case

MTA barrier

Restoration with simile

Immediate implant

Traumatic accident

Lesion on D root

Extract / Implant

Carious exposure