Laser bleaching utilizes laser light energy to accelerate the chemical reaction of a bleaching agent, typically a hydrogen peroxide base product. Hydrogen peroxide is very unstable in response to light and heat (which is why over-the-counter 3% hydrogen peroxide solution is stored in opaque dark brown bottles). Because of this, light energy can excite peroxide molecules, breaking the covalent bonds of the bleaching agent. The agent then reacts to and breaks the long, discolored molecule chains into shorter-chained molecules, lightening the tooth color. The bleaching agent used with laser bleaching is a high-strength solution when compared to home bleaching agents or over-the-counter kits. Your mouth will be protected with an isolator to protect the oral tissues , and placement of the bleaching agent is done in a very controlled manner by a highly trained dental professional. Once a 10-to-15 minute bleaching cycle is complete, the teeth will be cleaned and evaluated to discern whether additional applications of bleaching agent will follow. Normal bleaching procedures involve three applications of the bleaching gel, with an “instant average” of six shades of whiteness typically resulting. Laser bleaching is instantly gratifying. In my office, you can watch a movie through virtual i-glasses while the procedure takes place, and before your movie is finished your teeth will have been transformed into a younger, prettier and whiter smile!

Many different types of lasers (or light) are used for eliciting fast chemical reactions in teeth whitening. Some people will experience more sensitivity when infrared energy (heat) is utilized, which appears in most dental offices, but a few alternatives like Argon or KTP lasers (which emit blue and green light) exist. These lasers have the correct level of energy required to excite the bleaching gel, but they leave the teeth cool and comfortable. Most sensitivity is transient, and should subside within a day (Ibuprofen will be helpful if there is any available). After a smile has been bleached with a laser, one must be very careful to maintain his or her newly brightened smile lest the brilliant white color fade and dull over time. Alcohol, soft drinks and smoking are all bad habits which can stain teeth and regress any laser bleaching process. A healthy diet will also be beneficial for your physical and oral health. If you take care of your mouth, your reward will be apparent with a happy and healthy smile.

These are common questions from patients looking for cosmetic dentistry.

If you’re interested in cosmetic dentistry to get yourself a winning smile, whether the problem is mis-alignment, cracked or chipping teeth, unsightly spacing, uneven or dark colored dentition, uneven or too much (or not enough) smile showing, or even gum erosion, the eternal question always arises: What would be the best solution?

In the past, crowns were the primary choice for masking tooth problems, but since the late 1980s, cosmetic dentistry has offered both bonding and veneers to improve your smile. This leads to the eternal question: “Bonding or veneers?”

Dental bonding involves the application of a durable composite material directly to the surface of the tooth, by your dentist, which is then sculpted and artistically shaped to the exact look the patient desires, to blend naturally and seamlessly with the patient’s existing teeth. A laser (or high intensity light) is then used to cure the composite material, hardening and reinforcing it to the surface of the tooth. This bonding technique has many applications, not only for aesthetic uses but also for prosthodontics and pediatric dentistry. The advantages to dental bonding are a quick treatment time (can be completed in one office visit after a consultation), and a relatively low cost per tooth when compared with porcelain veneers. Durability of bonding will be affected by the oral environment. Since composite bonding is a mixture of quartz particle (70% – 80% filled) and resin, discoloration and breakage is inevitable if your mouth has a high acidic pH value (if you are a soda drinker, lemon lover or candy sucker), if the bonding was not supported by a solid tooth structure, or if you are a night grinder.

Porcelain veneers are fabricated in the laboratory. They are 100% filled with hard mineral particles, and are fired at a high temperature with a vacuum (to procure the best physical properties to sustain the veneer’s strength in the harsh oral environment). Compared to bonding, there is more procedural work involved with porcelain veneers. There are different techniques to fabricate the veneer pieces (which call for different methods of preparation for the tooth); the pressing technique produces a stronger veneer, but requires 0.8mm thickness of the veneer. The porcelain powder build-up technique can produce super thin veneers (0.3mm), which produces a very conservative look on your tooth structure, while at the same time keeping a natural silhouette. The veneer piece lays on top of the tooth structure and is similar to a press-on nail. They chemically adhere to the tooth with bonding composite cement; since porcelain is acid resistant and stronger in physical properties than composite material, this restoration provides long-term service. When getting the veneers, the first visit consists of preparation and imprints f the teeth (which might involve anesthetic). After this, you will leave the office with temporary veneers which look like natural teeth. A wafer-thin veneer is then crafted out of porcelain which is seamlessly cemented to the front side of the tooth on the second visit. In addition to straightening teeth, porcelain veneers can close gaps between teeth, whiten teeth that do not respond well to bleaching, and can also be used to protect damaged tooth surfaces. The advantages to porcelain veneers over bonding is that veneers are much longer lasting (and stronger) than composite bonding material.

Whether you decide to invest in dental bonding or porcelain veneers, make sure you have all work done at a reputable dentist, preferably at a practice which has its own in-house ceramic lab. When ceramic work is done by an in-house lab with an in-house ceramist, any changes that need to be made to the length or color of the veneers can be done without requiring an additional office visit. Remember, the result of the cosmetic procedures are truly varied depending on the ability of the dentist, ceramist, your clinical situation and the communication between all parties involved. Do your research!

Both bonding and veneers are additive procedures, depending on the position, alignment and shape of your teeth, which is the foundation for any new restorations. This foundation will need to be in the right fundamental situation to receive restorations to result in a fabulous smile. In other words, sometimes, you do not need to do much to your own teeth before applying cosmetic restorations. It might be necessary to reduce or modify the tooth structure before anything can be added onto it to make it look perfect.

There is some risk involved with cosmetic bonding or veneers, so be cautious with any cosmetic procedure. A comprehensive evaluation of your present dental condition is absolutely necessary as a first step; blue prints of your teeth and of your prospective dental project are needed to establish clear verbal communication between all parties involved (including you), including possible mock-up or wax-up models to preview possible changes, which could avoid costly mistakes.

Do your homework: finding the right dental professional, discussing every aspect of your dental needs, understanding the pros and cons of each procedure, and making an educated decision will ensure you get the smile you’ve always wanted.