Page 4 - The Beauty and Sorrow in Endodontics-Prologue
P. 4
Content
Preface ......................................................................................................................... I
Dr. Herbert Schilder ........................................................................................................... II
Dr. ChihPing Chen ............................................................................................................. IV
Dr. Sabrina HsiuWei Chen ................................................................................................ VI
Reader’s Guide ............................................................................................................................................... VII
Chapter Synopsis ................................................................................................................................................ VIII
Introduction ....................................................................................................................... 1
Prologue ............................................................................................................................. 3
Case 1 Sudden disappearance of a main canal indicates the existence of split canals ................... 5
Case 2 An apical curvature of the main canal is usually accompanied by multiple
lateral canals ..................................................................................................................... 6
Case 3 Imagine a tangent line from the most raised point of a spherical lesion, the
point where a perpendicular line to this tangent meets the root surface
is where an opening of a lateral canal exists .................................................................... 8
Case 4 Radiographs taken at different angles often provide new insight to the case .................. 10
Case 5 Lateral canals can occur in the middle of the root as well ................................................. 12
Case 6 Adjacent teeth usually have similar lateral canal systems ................................................. 13
Case 7 Expect an additional canal if the file is not centered at the middle of the root ................ 15
Case 8 Lateral canal is often present at the inner curvature of the root ...................................... 17
Case 9 Lateral canal is often present where there is a bulge on the root ..................................... 18
Case 10 Expect to reveal unsuspected lateral canals after obturation ........................................... 19
Conclusion ....................................................................................................................... 21
2
