Cosmetic Dentistry Adelaide - Crowns And Veneers
Veneers are placed on the visible front part of the tooth.
The tooth is prepared by shaving off a minimal amount of tooth, in some cases nothing at all, and porcelain or composite bonded in place.
Porcelain veneers are aesthetically superior to composite and require less maintenance long term.
Porcelain veneers are constructed in a laboratory on a model and require 2 visits.
Composite veneers are done chair side are slightly cheaper not as durable as porcelain and need to be repolished on a regular basis to maintain lustre.
Important Information: Cosmetic Treatment Risks
All dental and cosmetic procedures, including professional teeth whitening, carry some degree of risk such as temporary sensitivity or gum irritation.
Crowns cover all surfaces of a tooth.
Crowns are all constructed in a Laboratory. Chair side constructed crowns are not used at Dr. Zielinski & assoc as we feel that these are aesthetically inferior and not as well fitting as we like. There is much advertising and marketing in relation to these Cad Cam machine made chairside crowns and restorations but the real science tells a different picture.
Crowns are placed on a tooth which is structurally compromised. Such teeth are heavily filled ones which are over ½ in filling material and in particular endodontically treated teeth which are dry and brittle on top of that.
Crowns can be made of gold, porcelain fused to gold, zirconium layered with porcelain or purely porcelain.
On posterior teeth, gold is best when it comes to function and longevity however aesthetically porcelain is superior.
Inlays/Onlays are an indirect restoration and cover less tooth than a full crown. For simplicity, these may be referred to as ½ or ¾ crowns
In some cases a full crown is not warranted and a more conservative yet durable approach is needed. This is where the tooth is prepared for an inlay or onlay, an impression taken and the final restoration bonded in on a subsequent visit.
Chairside CAD/CAM crowns and printed resin restorations.
In some cases a full crown is not warranted and a more conservative yet durable approach is needed. This is where the tooth is prepared for an inlay or onlay, an impression taken and the final restoration bonded in on a subsequent visit.
The technology allows for a scan design and mill on the same day.
The crowns are a precise fit and built into the correct bite on the day.
These are great solution for some of our country patients that can not do multiple trips into Adelaide or time restricted patients.
The digital workflow allows us to mill crowns in tricky situations such as a retrofit crown to an existing denture with predictable results.
Not only crowns but onlays or large restorations. In some cases where the posterior restorations are wide, composite fillings are extremely hard and time consuming to do. The digital milled restoration can be correctly shaped and profiled on the spot and milled out of a stronger material chairside.
The technology allows for a scan design and mill on the same day.
The crowns are a precise fit and built into the correct bite on the day.
The digital work flow also allows us to print restorations (large fillings and veneers). Printable resins today have a 40% ceramic content and are aesthetically as good as composite resins. These printed restorations are as durable as composite fillings.
Full posterior crowns are better milled as the materials are stronger than printed resins.
These chairside crowns are also good in situations where the crown margins are deep and not clear. The clinician scans and marks the margins on the design software. Doing this immediately while the patient is in the chair removes the guess work if a lab technician were to design this off site. This is beneficial to the workflow and eliminated sending the crown back to the laboratory for adjustments. Many clinical hours and visits are avoided.
There is a place for everything in dentistry and chairside milled crowns certainly do have a place. They are not an immediate alternative to traditional crowns in all cases but are certainly better suited in some.
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