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Multiple roots lower premolars - Courtesy ROOTS

From: Ilya Mer
Sent: Saturday, June 05, 2010 5:43 AM
Subject: [roots] Multiple roots lower premolars of the week.

Here is my most dificult cases of last week. Not so usual anatomy for 
my country, multiple roots lower premolars Best regards from Moscow 
- Ilya Mer

Ilya, Intresting case and intresting anatomy, can you explain moré details please. - Dr. Alejandro Podolsky G. More detalis: The first endo (44 and 45) was done 4-5 years ago. Under crowns it survived but patient said the teeth hurt him sometimes. The anatomy looked like C-shape root. Separate lingual and buccal root, into isthmus of second premolar I succeeded to find one more canal. 44 with internal resorption in the midroot the lingual root and huge pulp stone. I had to work four appointments to complete these cases (and calcium hydroxide for 2 weeks in between). Samee! You are right, the obturation is a problem. I use Obtura injection technique in most cases and in these cases as well. The second case (45) was very difficult. The sealer inserted into orifices of accessory canals gave a hint that would be simple to find the entrance. In fact it looked like small closed envelope on the dentin wall. It cost me 6(!) micropeners to understand the angle and exact point of entry. It was also 2 visit endodontics with 2 weeks calcium hydroxide between visits. - Ilya Mer

Fractured incisor

TF not coming out

Angled radiographs

Merging buccal canals

Rebonding broken tooth

Lower premolar

Hess anatomy

Hopeless molar

Calcified tissues

Porcelain veneers

Huge PAL

Bizarre molar

Strip perf

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Anticoagulant therapy

Woodpecker technique

Wisdom tooth

Failed revasc

Strip perforation

Tooth #11

Failing implant

Complex molar


Khoury technique

GBR procedure


Retreatment tooth#36

sealer puff

Lower canine

Super numerary tooth

Mandibular canine

Buccal swelling

Tooth #44 & #45

Apical canal

Lateral sinus lift

Poor surgery

Lateral incisor

Upper right incisor

Mesial canals

Complex trauma

Molar anatomy

Lateral wall

Mandibular pushback

Skiing accident

Endo pathosis

Surgical resorption

Amazing lesion

Canal projection

Mandibular premolar

C shaped molar

Failing retreatment

Crown recycling


Bioceramic sealer

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