Some of Martin's cases

Click on the photo to see the result
A missed canal

The upper left 1st molar had previously been root-filled but had persisting symptoms. Radiographic examination revealed a short and thin root filling and apical radiolcuencies. Orthograde retreatment was carried out over two visits. The existing root filling material was removed with files and solvents. A second canal in the mesio-buccal root was located using ultrasonic instruments. All four root canals were prepared with reciprocating instruments and chemo-mechanically debrided with EDTA and sodium hypochlorite. At the second visit the tooth was obturated using a warm vertical technique.

A perforated molar

The lower right 1st molar had been root treated some years prior to the patient seeing Martin. Clinically there was an isolated deep pocket buccally. Radiograophic investigation revealed a poor root filling and a perforation in the furcation region. Endodontic retreatment of the tooth was carried out over two visits and the perforation reapired with MTA. 


At a one year review the tooth remains asymptomatic, the pocket has resolved and there has been significant bony infill in the furcation region.

A curved root

This upper left 1st molar was referred due to the extreme curvature of the mesio-buccal root. After ensuring good straight-line access to the root caanls Martin established a glide path with hand files before, carefully, preparing the root canals with reciprocating files. After thorough chemo-mechanical debridement with EDTA and sodium hypochlorite the tooth was obturated with a warm vertical technique.

A fractured instrument

The lower left 2nd premolar fractured and required a post-crown to restore it. Unfortunately a previous dentist had attempted a root filling and fractured a small hand file in the root canal. Martin removed the instrument using a Masseran kit and following root treatment placed a fibre post and composite core ready for restoration with a crown

© 2013 by Martin Lazenby.

last updated 18/12/14

curved root 1.JPG

A pre-op radiograph shows a very curved mesio-buccal root