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Guelph Dentist | Guelph dental care | ON | Crowns

1492 Gordon St, Guelph, Ontario

Family Dental Centre

Dr. Dennis Poloniato     Dr. Mandeep Johal

(519) 767-2729

Crowns
AGD Member
 

A crown is a “covering” for a natural tooth.

Natural teeth that would benefit by a crown include:

  1. A tooth that is structurally compromised, missing one or more points (cusps) or has been rebuilt with a filling. Such a tooth is at risk for breaking down further which could compromise the tooth beyond repair.
  2. A tooth that has been root canalled. Root canalled teeth often have a deep hole drilled down the center of the tooth and are potentially at risk of cracking.
  3. A tooth that has multiple visible small cracks or crazes.
  4. A discolored, misshaped or unaesthetic tooth.
  5. Teeth that have been severely worn down and have poor chewing efficiency. In such cases, many teeth are crown to rebuild the bite.

 

Crowns often involve 2 appointments.

At the first appointment, a “temporary” impression mold is taken of the tooth. The tooth is then trimmed down and a “working” impression mold is made of this trimmed down tooth. A commercial dental laboratory fabricates the final crown. The patient is sent home with a temporary acrylic crown (made chairside from the temporary impression mold), cemented with a soft cement.

At the second appointment, the temporary acrylic crown is teased off the trimmed tooth and the final crown is permanently cemented with a hard cement.

Different types of crowns include: full metal crowns, porcelain fused to mental crowns and all porcelain crowns.

All Porcelain crown

  • Newer porcelain crowns made with a zirconia substructure with porcelain added on top
  • High fracture resistance
  • Excellent aesthetics and translucency

 

   

Lab model of prepared tooth                Crown made on lab model

 

Porcelain fuse to metal crown

  • metal substructure, porcelain is then added to the visible area of the tooth.
  • strength advantages
  • sometimes unaesthetic if recession occurs

 

Full Metal Crown

  • Made from metal only so highest fracture resistance
  • Highest wear resistance
  • Unaesthetic? Depends on your preference
 
 
 
Guelph Dentist. Dr. Dennis Poloniato provides Family Dentist, Cosmetic Dentist, Dental Implants, Teeth Whitening, Dental Crowns, Dental Cleanings, Root Canal to the following locations: Puslinch, Gordon Street, Cambridge. Puslinch Dentist providing dentistry including Family Dentist, Cosmetic Dentist, Dental Implants, Teeth Whitening, Dental Crowns, Dental Cleanings, Root Canal in Guelph, Puslinch, Gordon Street, Cambridge, Ontario.