Internal Anatomy of Anterior Teeth
Internal Anatomy of Anterior Teeth
Internal Anatomy of Anterior Teeth
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Peter Moses, DDS<br />
www.habdcprostho.com/pros1124.jpg
Our Goal<br />
• Describe the common shapes <strong>of</strong> roots in cross<br />
section and common canal configurations and<br />
variations<br />
• List the average length, number <strong>of</strong> roots, and<br />
most common root curvatures.<br />
• List each tooth and the root(s) that require a<br />
search for more than one canal.
<strong>Internal</strong> <strong>Anatomy</strong> ‐ Variables<br />
• Age<br />
• Irritants/Caries<br />
• Calcification<br />
• Resorption<br />
• Trauma
Maxillary Central Incisor<br />
• Age <strong>of</strong> eruption : 7 ‐ 8 years<br />
• Average length : 22.5 mm<br />
• Number <strong>of</strong> roots : 1(100%)<br />
• Number <strong>of</strong> canals: 1(100%)<br />
• Apical foramen within 1 mm <strong>of</strong> apex<br />
80%<br />
• Common to find accessory and<br />
lateral canals(60%)
Maxillary Central Incisor
Maxillary Central Incisor
Color Atlas and Text <strong>of</strong><br />
Endodontics, 2nd Edition. Mosby<br />
Elsevier Health Science, 011995
Maxillary Central Access
Maxillary Central Incisor
Maxillary Lateral Incisor<br />
• Age <strong>of</strong> eruption: 8 – 9 years<br />
• Average Length: 22 mm<br />
• Number <strong>of</strong> roots: 1 (99.9%)<br />
• Number <strong>of</strong> canals: 1 (99.9%)<br />
• Root tip <strong>of</strong>ten curves distolabially<br />
• Palatal‐gingival groove may be<br />
present
Maxillary Lateral Access
Maxillary Lateral Incisor
Maxillary Canine<br />
• Age <strong>of</strong> eruption : 10‐12 years<br />
• Average length: 26.5 mm<br />
• Number <strong>of</strong> roots: 1 (99.9%)<br />
• Number <strong>of</strong> canals: 1 (99.9%)<br />
• Root end may curve distally
Maxillary Canine
Maxillary Canine Radicular<br />
<strong>Anatomy</strong><br />
• Radicular canal is straight<br />
and long; many require<br />
instruments longer than<br />
25mm<br />
• Apex <strong>of</strong>ten curves in the last<br />
2‐3mm, and it can turn in<br />
any direction<br />
• Lateral root canals are<br />
infrequent<br />
• Apical root canal deltas occur<br />
occasionally<br />
• Canine morphology seldom<br />
varies
The End‐O
Change language