• For these slides:• print out in hand out form(6/page)

• start by printing 2-12 (will be 2 pages)then 13-23

• You should have 4 pages total, 2 with answers and 2 to fill in

• Happy Studying

Occlusal Contact Pointswith Mandibular Teeth

Occlusal Contact Pointswith Maxillary Posterior Teeth

Occlusal Contact Pointswith Maxillary Anterior Teeth

Periodontal Ligament Design and Function

Periodontal Ligament Design and Function

12

Periodontal Ligament Design and Function

12

Shape of Proximal Contact Areas

Maxillary Premolar Teeth Mesial View First Premolar

Distal View First Premolar

Tooth Angulation First Premolar

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

Tooth Angulation Central Incisor

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

Tooth Angulation Lateral Incisor

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

Tooth Angulation Canine

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

Occlusal Contact Pointswith Mandibular Teeth

DL Cusp Third Molar

DL Cusp Second Molar

DL Cusp First Molar

ML Cusp Third Molar

ML Cusp Second Molar

ML Cusp First MolarL Cusp Second Premolar

L Cusp First Premolar

Occlusal Contact Pointswith Maxillary Posterior Teeth

DB Cusp Third Molar

DB Cusp Second Molar

D Cusp First Molar

MB Cusp Third Molar

MB Cusp Second Molar

DB Cusp First Molar

MB Cusp First Molar

B Cusp Second Premolar

B Cusp First Premolar

Occlusal Contact Pointswith Maxillary Anterior Teeth

Cusp Tip Canine

Incisal Edge Lateral

Incisal Edge Lateral

Incisal Edge Central

Cusp Tip Canine

Periodontal Ligament Design and Function

Alveolar Crest

Oblique

TransseptalHorizontal

Interradicular

Apical

Periodontal Ligament Design and Function

• 1) Alveolar Crest - retain the tooth in alveolus, oppose lateral forces, and protect deeper periodontal ligament structures

• 2) Oblique - oppose axially directed forces

• 3) Transseptal - prevent teeth from losing contact

12

3

Periodontal Ligament Design and Function

• 4) Horizontal - oppose lateral forces

• 5) Interradicular - prevent tooth tipping and extrusion

• 6) Apical - prevent tooth • tipping and extrusion, • protect vessel and nerve • supply to the tooth

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6

Shape of Proximal Contact Areas

Maxillary Premolar Teeth

Mesial View First Premolar

Distal View First Premolar

Tooth Angulation First Premolar

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

9o 5o

6o 9o

Tooth Angulation Central Incisor

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

2o 28o

2o 22o

Tooth Angulation Lateral Incisor

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

7o 26o

0o 23o

Tooth Angulation Canine

• Maxillary

•

• Mesiodistal Faciolingual

•

• Mandibular

17o 16o

6o 12o