The Endo Fix

Retreatment collage: pre-op radiograph, molar access, Nacho Libre mask, amalgam core and 8-year recall

Survivorship Bias

July 9, 2026 Michael Trudeau Daily Fix

Survivorship bias. It’s what happens when we only look at the survivors (the cases, the people, the outcomes that made it through) and lose sight of the ones that didn’t make it, or that we

$Serial periapicals of maxillary central horizontal root fracture showing pulp canal obliteration$

Horizontal Root Fracture

July 31, 2024 Michael Trudeau Daily Fix

This seems to be fairly predictable of this case type. Stabilize it. Monitor it. Watch it pulp canal obliterate (PCO). And the root tip kinda sails off into the sunset. Based on those that I’ve

Dens Invaginatus

October 30, 2023 Michael Trudeau Daily Fix, Large Lesion

Sometimes the development of the tooth goes a little haywire and another tooth begins to develop within a tooth, but not completely. So we end up with this invagination leading to the pulp and sometimes

Lecture title slide: The Restoratively Driven Endodontist, 2011, for the general dentist

Restoratively Driven Endodontics

November 3, 2017 Fix It Crew Deep Fix

It isn’t a new term. Restoratively Driven Endodontics that is. It’s not new. I came up with it in 2007/ 2008 during my endodontic residency at Albert Einstein making the term about 10 years old

Radiographs, CBCT and surgical photos of mandibular anterior external resorption repair with 10-year recall

Combo Approach to Resorption

July 31, 2026 Michael Trudeau Daily Fix

The patient is a periodontist and insisted we give it a go. Got the 10 year follow-up the other day. We started with the surgical approach, then added internal calcium hydroxide with resorption removal. He

Periapical, CBCT sagittal and axial views and rubber dam photos of a tooth with external resorption

Resorption Recall: 6 Years

May 6, 2026 Michael Trudeau Daily Fix, Resorption

Periapical radiograph of mandibular anterior tooth 5 years after external resorption treatment

External Resorption Recalls as of 5/2026

May 5, 2026 Michael Trudeau Deep Fix, Resorption

Decision making under uncertainty is undoubtedly strained to the max when managing external crestal resorption. The literature is all but useless in guiding our decision making with regards to risks, benefits, and alternatives. An honest

Radiographs, surgical repair photos and probing of mandibular incisor external resorption at 5-year recall

Resorption Recall: 5 Years

May 5, 2026 Michael Trudeau Resorption

Bitewing radiograph showing proximal contact and embrasure space between posterior teeth

Embrasure Space Recapture

August 27, 2025 Michael Trudeau Daily Fix, Tips, Tricks & Fixes

The embrasure. I don’t think most clinicians give enough thought to the embrasure. It’s the contact in three dimensions. It is dictated often by tooth position and or restorative. As long as there is sufficient

Radiographs, CBCT and clinical photos of maxillary central dens in dente with large apical lesion

Decompression of a Dens in Dente Central Incisor

October 22, 2024 Michael Trudeau Large Lesion, Tips, Tricks & Fixes

This was an interesting tooth. It had a large talon on the palatal leading to a c shaped dens in dente or tooth within a tooth. There was a very large apical finding. Symptoms didn’t

Maxillary molar radiographs and access photos labeled MB canals, pre-op to recall

Max Molar Video: Access from 2014

July 30, 2024 Michael Trudeau Daily Fix

I found this old video looking for some other things. Access from 10 years ago. View in split screens. 2 Appointment case. Part 1 and 1b are meant to be played at the same time.

Visible light spectrum chart from 400 nm violet to 700 nm red

Blue Light Special

January 2, 2024 Michael Trudeau Daily Fix

The intersection of scopes, filters, composite, and light can lead to some confusion and possibly unsafe clinical habits. So let’s get the whole story straight and make sure our working habits are healthy as well

The Endo Fix

Welcome to The Endo Fix

Start Here

Categories

Latest Cases