Crowns, Bridges, Veneers
When the tooth lost a bulk of its structure in battle with caries or due to dental trauma, its integrity is compromised. Composite resin is still a form of reinforced plastic that can not provide enough strength to withstand the masticatory forces. To restore its function and to prevent breakage it may require complete or partial crown coverage.
Although the best crowns in terms of longevity and biocompatibility are made of gold, porcelain and zirconia are newer materials that are often used for their superior esthetic appearance.
Sometimes two or more crowns can be joined together and a missing tooth can be added to fabricate a dental bridge. These are fixed prosthesis, meaning that they are permanently cemented on top of existing teeth to provide greater comfort for the patient.
Often, we’re asked about life expectancy of a bridge or a crown. Unfortunately, nothing we do to restore a tooth will last forever. Individual terms will depend on patient’s resistance to dental decay, oral habits and maintenance. On average lifespan of a crown is 10-12 years, for the bridge 8-10 years. Having said that we’ve seen some crowns that were in service for over 40 years and bridges well over 25.
Veneers are very thin shells of porcelain that are bonded to enamel to cover the facings of the front teeth. Usually they are done to correct minor shape irregularities, improve colour and appearance, thus making them a great choice for esthetically driven treatment modalities.