Page 13 - The Beauty and Sorrow in Endodontics-Introduction
P. 13
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
XI
