Pathway To The Pulp Chapter 5 11th Edition Flashcards
Illustration of root canal system
Illustration of root canal system
A. DG16 endodontic explorer
B JW -17 endodontic explorer
Identify canal opening and determine angulation
Accessory canals
Minute canals that extend in a horizontal, vertical, or lateral direction from the pulp space to the periodontium
Contain ct and vessels
do not supply pulp with enough circulation to form collateral b/s
Formed by entrapment of PD vessels in Hertwig’s epithelial root sheath during calcification
Pulp cavity is divided into 2 main portions:
Pulp chamber: located in or extending to just below the anatomic crown of the tooth
Root canals: found in the anatomic root
Describe the extend of pulp chamber in a single rooted tooth
Pulp chamber extends to the most apical portion of the cervical margin of the crown
Describe the extend of the pulp chamber in a multi rooted tooth
The pulp chamber extends to the floor of the chamber located in the coronal third of the root
Furcation canals
Accessory canal present in bifurcation or trifurcation
Apical root anatomy is based on 3 anatomic and histological landmarks
1) Apical constriction AC
2) Cementodentinal junction CDJ
3) Apical foramen AF
Apical constriction AC
Part of the root canal with the smallest diameter
reference point as apical termination
enlarge, shape, clean, disinfect, filling
Cementodentinal junction CDJ
Point where cementum meets dentin
Point where pulp tissue ends and periodontal tissues begins
Apical foramen
circumference or rounded edge, like a funnel or crater that differentiates the termination of the cemental canal from the exterior surface of the root
Objectives for access canal preparation (6)
1) removal all caries when present
2) conserve sound tooth structure
3) unroof the pulp chamber completely
4) remove all coronal pulp tissue (vital or necrotic)
5) locate all root orifices
6) achieve straight or direct-line path to apical foramen or the initial curvature of the canal
A straight line access to a canal
A straight line access to a canal
Cementoenamel junction CEJ is an important landmark for what?
CEJ is an important landmark to find the location of the pulp chamber and opening to the root canal
Set of Micro openers for canal identification and enlargement
Set of Micro openers for canal identification and enlargement
A set of micro openers for canal identification and enlargement
Change the tips and different sizes
2,#4, #6 round carbide burs
Preparation access canal
Penetrate through the roof of pulp chamber
2,#4, #6 round carbide burs
Preparation access canal
Penetrate through the roof of pulp chamber
Endodontic explorer DG 16
Identify canal orifice and determine angulation.
Access bur #57 fissure carbide bur
Used for axial wall extensions of access preparation
Access bur #57 fissure carbide bur
Used for axial wall extensions of access preparation
Round end cutting tapered diamond bur
Access preparation
Axial wall extension
Round end cutting tapered diamond bur
Access preparation
Axial wall extension
Safety tip tapered diamond bur
Safety tip tapered carbide bur
Safer choices for axial wall extensions
Extend to pulp floor
2 and #4 round diamond burs
2 and #4 round diamond burs
Muller bur
LN bur
Tooth with receded pulp chamber and calcified orifices
Muller bur
LN bur
Tooth with receded pulp chamber and calcified orifices
Gates Gliden burs
Flare, enlarge , blended into axial walks of access cavity
DG endodontic explorer
Find the orifice , determine angulation
CK17 endodontic explorer
Same as above + id calcified canals
DG endodontic explorer
Find the orifice , determine angulation
CK17 endodontic explorer
Same as above + id calcified canals
Endodontic spoon
Remove coronal pulp and dentin
Endodontic spoon
Remove coronal pulp and dentin
Ultrasonic unit and tips
Designed for endodontic procedures
