Missed MB2 (by Ilya Mer)

Tooth #26 (14) – accidental finding on X-ray. The patient’s cheaf complaint was bleeding while flossing between first and second molar. The crown was done 2 years before. According to what patient was talking the RCT was done more than 5 years before and a new bulid up with FP was done before  a new crown placement but RCT was not re-evaluated. The treatment plan was to retreat the tooth through the existing crown then replace it.



Preop images, short obturation in all canals and PARL on both buccal roots at least
The whole pulp chamber was full of infection, missed MB2 probably was not the only cause of inflammation


The MB2 canal was found and cleaned at the first appointment. Calcium hydroxide was placed for more than 4 weeks because of schedule’s reasons
Final X-rays
Obturation was done at the second visit. There was no patency in any canal but MB2. Obturation technique was injection by warm GP with Obtura gun.
Final view of pulp chamber
Final view of pulp chamber
6 month follow up
6 month follow up
6 month follow up
6 month follow up
12 month recall
12 month recall







Apical perf healing (by Ilya Mer)

What a pleasure surprise came yesterday to my clinic. Tooth #36 with apical perf healed completely 3 years after treatment.…

Red Russian cement molar surgery (by Ilya Mer)

Red Russian cement was very popular in former USSR countries and unfortunately still in use in some cases. The main…

12 month CBCT recall after MB root surgery (by Ilya Mer)

Missed anatomy is the most frequent cause of apical development. In first upper molars definitely MB2 is mostly missed canal.…

When the surgery is the only option (by Ilya Mer)

To tell you the truth my therapeutic nature opposes an idea to do surgery in case of unfounded and untouched…