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Materials for Inlays, Onlays, Crowns and Bridges

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Page 1: Materials for Inlays, Onlays, Crowns and Bridges
Page 2: Materials for Inlays, Onlays, Crowns and Bridges

Inlay – indirect restoration; occlusal surface excluding cusps

Onlay – indirect restoration; occlusal surface plus cusp(s)

Page 3: Materials for Inlays, Onlays, Crowns and Bridges

Crown – usually covers the clinical crown of the natural tooth Can create “¾ crowns”

Bridge – replaces missing tooth/teeth Abutment vs. Pontic Cantilever, Maryland

Page 4: Materials for Inlays, Onlays, Crowns and Bridges

Cantilever Bridge

Maryland Bridge

Page 5: Materials for Inlays, Onlays, Crowns and Bridges

Dental Ceramics – Porcelains Composites Metals

Page 6: Materials for Inlays, Onlays, Crowns and Bridges

Crowns (Anterior – “jackets”) Veneers Fused to metal for crowns & bridges Denture teeth Inlays & Onlays All-porcelain crowns & bridges (without metal

substructure)

Page 7: Materials for Inlays, Onlays, Crowns and Bridges
Page 8: Materials for Inlays, Onlays, Crowns and Bridges

Intended for very large Class I or II restorations Applied directly or indirectly Reduces concern of polymerization shrinkage and

marginal leakage Composite restoration fully cured outside of mouth Similar to direct composite materials

Page 9: Materials for Inlays, Onlays, Crowns and Bridges

The tooth is prepared The prep-site is lined with a lubricant The composite is placed and cured (but

not etched, bonded!) Remove the composite filling and finish

cure The restoration is cemented into prep at

same appointment

Page 10: Materials for Inlays, Onlays, Crowns and Bridges

After tooth is prepped, an impression is taken A provisional filling material is placed The impression is sent to lab Lab fabricates the restoration from composite material

onto the die The restoration is cured fully The inlay is seated with composite cement at 2nd

appointment

Page 11: Materials for Inlays, Onlays, Crowns and Bridges

Full metallic crowns, bridges Inlays, onlays Substructure for PFM’s Substructure/framework for partial dentures Temporary crowns (prefabricated)

Page 12: Materials for Inlays, Onlays, Crowns and Bridges

Alloys have advantages over pure metals alone: Stronger Harder Easier to fabricate Less expensive

Alloys are formed when metallic atoms are dissolved within the atoms and crystals of another metal

Page 13: Materials for Inlays, Onlays, Crowns and Bridges

Gold is a soft metal Less gold in alloy improves

strength ADA-approved classes

based on properties of alloy Mixed with platinum,

palladium, copper & silver Gold alloys are expensive

Page 14: Materials for Inlays, Onlays, Crowns and Bridges

ULSOOR 

# 9/1, 2ND FLOOR ARJUN POINT,TANK ROAD, ULSOOR LAKE JUNCTION,

ABOVE SHANTI SAGARBANGALORE-560042,KARNATAKA,INDIA

PHONE NO : 080 - 2554 7249 / +91 99003 70009