Uses of Veneers
There are many reasons for creating the “Hollywood smile” and many uses for ceramic veneers. Some of the common uses include: diastema closure, improving the tooth shape, changing the tooth color, unifying the tooth color with the surrounding teeth, eliminating the appearance of slightly crowded or slightly overlapped teeth, and hiding imperfections to create a uniform smile line.
e.Max Veneers are made from lithium disilicate ceramic. Its translucent and reflective properties emulate enamel and blend with adjacent teeth, producing a seamless appearance. Everyone will be hard pressed to determine which teeth have been treated with veneers.
The ceramic is stronger and more fracture-resistant than stacked Feldspathic porcelain. Lithium disilicate ceramic stands up to wear. Automated laboratory processing via CAD/CAM technology since 2005 with milling from prefabricated ceramic ingots that are free from internal defects and voids. The finished product is highly glazed and polished.
It has ability to be custom characterized for an even more natural look using IPS stains. e.Max may also be fused to a stronger material, such as zirconia, for additional strength or for masking dark areas in the tooth preparation.It has ability to be custom characterized for an even more natural look using IPS stains. e.Max may also be fused to a stronger material, such as zirconia, for additional strength or for masking dark areas in the tooth preparation.
Composed of zirconium dioxide, Zirconia Veneers are the newest entrant to the veneers market. This 100% biocompatible material is the same ceramic material used in non-metallic medical joint replacements.
Zirconia is extremely strong without having the bulky appearance of porcelain. It is resistant to wear and difficult to crack. More flexural resistance than other glass ceramic dental materials currently on the market make it a superior choice for bruxism patients.
Its natural appearance is created by milling from pressed solid blocks that are free of voids and imperfections. Finishing via baking at ultra-high temperatures produces a glistening surface that is beautiful and nearly indestructible. Excellent retention by the natural tooth structure using resin ionomer cements.
Tooth Preparation Options
No-prep techniques require nothing more than roughening the tooth surfaces in order to improve adhesion and conserve enamel for improved bonding. A no prep technique preserves the maximum amount of sound tooth structure and reduces or eliminates tooth sensitivity.
You’ll see improved patient acceptance because the dentist doesn’t have to “drill the teeth,” which many patients find objectionable. The patient does not need to be anesthetized to be treated in most cases. No injections or droopy lips are a real bonus for most people.
One downside is that the aesthetics of these techniques can prove to be less than perfect, especially in profile, because the margins of the veneer are not hidden or wrapped into the interproximal areas. The casual observer may not notice this shortcoming, but it is important for the patient to know what to expect prior to taking this preparation approach.
This type of preparation requires minimal anatomic tooth reduction — roughly 0.3 mm in depth, facially — to create space for the veneers without adding bulk to the tooth in the facial or interproximal dimensions. The finish lines of the tooth preparation are located just anterior to the interproximal contacts.
The benefits of minimal-prep techniques include preservation of natural tooth structures and conservation of enamel for improved bonding. The margins of the veneers are virtually unnoticeable because they are hidden in the interproximal areas.
In many cases, anesthesia is not necessary in order to prepare the teeth using these techniques. This option depends on the specific patient and their individual tolerance and comfort levels.
Traditional Prep Techniques
A traditional preparation requires a much more aggressive tooth reduction — similar to the type of preparation required for porcelain veneers. This technique may be used to reduce a single tooth that is misaligned slightly facially in relation to neighboring teeth. A semi-traditional preparation may also be necessary in order to remove tooth decay or enamel defects, when present.
Some drawbacks to this preparation technique include: increased postoperative tooth sensitivity, reduced bond strength when the veneer must be cemented to dentin, and the patient must be anesthetized in order to perform tooth reduction that involves dentin or more than the superficial outer layer of enamel.
Preferred Impression-Taking Techniques
While our dental lab can handle whichever method you are set up for, digital impressions allow us to create a better final product for your patients.
Impression-Free Digital Scans
The preferred method is impression-free chairside scans for use in a completely digital workflow. The veneer preparation, hard tissue, and surrounding soft tissues are scanned at chairside and transferred to the dental lab digitally.
Hybrid Scans and Impressions
Hybrid technology utilizes scannable impression materials and impression trays. Impressions and a bite registration are individually scanned into STL files, then images are created and used to “print” 3D models in the dental lab.
Traditional Polyvinyl Siloxane impressions and bite registrations have been used for many years. Errors may be introduced at every step of the process, which can create the potential for a less-than-perfect fit of the finished veneers.
Delivery and Cementation
Cementation is achieved by adhesive, self-adhesive, or conventional cementation (when applying to dentin), and depends on the specific type of preparation and indication. Enamel bonding using a resin ionomer cement is the recommended and preferred choice for veneers.
A broad selection of shades, corresponding to the VITA shade guide, is available for all three types of veneers that we offer at Stomadent Dental Laboratory. Bleaching shades are also available. Internal and external stains can be applied by our technicians for a completely customized look for every veneer.
Why You Can Trust Our Dental Lab
Stomadent Dental Laboratory is a certified provider of IPS Empress Esthetic, e.Max, and Zirconia products. We use genuine materials and techniques mandated by each respective manufacturer to ensure long-lasting, predictable results. Stomadent technicians stay abreast of changing techniques through ongoing training and education required to maintain these certifications.
Don’t miss a beat — when you need us, we’ll be ready! Our dental starter kit includes everything you need to order dentures, dental crowns, dental bridges, and other dental prosthetics from our dental lab. See for yourself how we can help your dental practice succeed!
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