The document discusses an endodontic continuing education course covering key topics like: - Objectives of root canal treatment like removing infected pulp and bacteria. - Cleaning and shaping procedures, including using larger canal sizes to facilitate irrigation. - Common endodontic files, irrigants like sodium hypochlorite and EDTA, and obturation techniques like single cone and lateral compaction. - Importance of coronal seal after obturation is complete.

1. ‫كربالء‬ ‫جامعة‬
/
‫طب‬ ‫كلية‬
‫األسنان‬
‫برعاية‬
‫المحترم‬ ‫السعيدي‬ ‫نايل‬ ‫خليل‬ ‫باسم‬ ‫الدكتور‬ ‫األستاذ‬ ‫كربالء‬ ‫جامعة‬ ‫رئيس‬ ‫السيد‬
‫الس‬ ‫عبد‬ ‫صالح‬ ‫مهند‬ ‫الدكتور‬ ‫المساعد‬ ‫األستاذ‬ ‫األسنان‬ ‫طب‬ ‫كلية‬ ‫عميد‬ ‫السيد‬ ‫وبإشراف‬
‫تار‬
‫المحترم‬
‫بعنوان‬ ‫دورة‬ ‫المستمر‬ ‫التعليم‬ ‫شعبة‬ ‫تقيم‬
‫والخميس‬ ‫واألربعاء‬ ‫الثالثاء‬ ‫يومي‬
‫المصادف‬
7
-
2021/9/9
‫المستمر‬ ‫التعليم‬ ‫قاعة‬
-
‫االسنان‬ ‫طب‬ ‫كلية‬
‫صباحا‬ ‫التاسعة‬ ‫الساعة‬
‫المحاضرين‬
:
‫م‬
.
‫االسدي‬ ‫زكي‬ ‫همسة‬
‫م‬
.
‫م‬
‫نعمة‬ ‫غني‬ ‫ثناء‬
‫م‬
.
‫م‬
‫محمد‬ ‫حسن‬ ‫زيدون‬

2. In Endodontic Course

3. Main objectives of RCT:
• Remove necrotic/inflamed pulp
• Eliminate bacteria
• Create sterile space for obturation

4. Cleaning and shaping

5. Although the terms cleaning and shaping are often
used to describe root canal treatment procedures,
reversing the order to shaping and cleaning more
correctly reflects the fact that enlarged canals direct
and facilitate the cleaning action of irrigants and the
removal of infected dentin.

6. The green area indicates the pretreatment shape
the red area indicates the posttreatment shape

7. A 30-gauge, sideventing needle reaches the
apical third in adequately enlarged canals.

8. Endodontic files
Manual files Rotary files

9. ISO Files
Color
Size
Taper

11. Path and patency
A patency file is a small K-file (usually a size #10 or #15) that is
passively extended slightly beyond the apical foramen
Glide path and patency

12. Master apical file =MAF
Largest file that extend to the
working length

13. ProTaper Universal
The ProTaper system originally comprised six instruments: three shaping files and three
finishing files.

14. Preflaring is an important step in endodontic therapy, especially when dealing with
curved canals.
Coronal Preflaring

15. Lubrication
Sequence
Movement
Cleaning of files

16. Root canal Irrigations

17. Benefits of Using Irrigants in Root Canal Treatment
◆Removal of particulate debris and wetting of the canal walls
◆ Destruction of microorganisms
◆ Dissolution of organic debris
◆ Opening of dentinal tubules by removal of the smear layer
◆ Disinfection and cleaning of areas inaccessible to endodontic
instruments

18. NaOCl
EDTA
CHX
Saline
Saline
Saline

19. NaOCl and CHX when in contact produce a change of color and
a precipitate PCA

20. Endodontic needle side vented
Hypodermic needle

21. Dry the canal

23. Obturation
Gutta-Percha Gutta-percha is the most popular core
material used for obturation.
 Advantages of gutta-percha are :
1. Its plasticity.
2. Ease of manipulation.
3. Minimal toxicity.
4. Radiopacity.
5. Ease of removal with heat or solvents.
 Disadvantages include its lack of adhesion to dentin
and, when heated, shrinkage upon cooling

25. When fitting a cone. At this time the feel would be of
tug-back, a slight resistance to pull

26. Single cone
Lateral compaction

27. 3D-Obturation

28. Sealers
Root canal sealers are necessary to seal the space between the dentinal wall
and the obturating core interface. Sealers also fill voids and irregularities in
the root canal, lateral and accessory canals, and spaces between gutta-
percha points used in lateral condensation

29. Coronal seal

30. Single visit Multiple visits
Vs

31. Single visit RCT

32. Not all endodontically treated should
be post and crowned
Amount of remaining
tooth structure
Amount of force to
be applied