Social Accounts Sprite
Dr. Gerald Regni Jr & Associates

Advanced Teeth Whitening With Exceptional Results

If you would like to brighten your smile with visibly dramatic results, a cosmetic dentist is your best option. Providing professional teeth whitening treatment in Philadelphia, PA, Dr. Gerald Regni offers cosmetic dentistry techniques that can quickly take your smile from dull to dazzling. Our whitening products, including the renowned KöR® Whitening system, can provide you with optimal results for a special occasion—or simply enhance your everyday smile confidence. 

Dentist using a shade guide with teeth whitening
Teeth whitening is one of the fastest, easiest, and most conservative ways to improve your smile. Professional teeth whitening can brighten your teeth by several shades. 

About Professional Teeth Whitening

A gleaming, bright smile sets your whole face aglow and can make you look years younger. Some men and women seek teeth whitening prior to a wedding, school reunion, or other occasion when they particularly want to shine. Others pursue professional whitening for an everyday appearance boost, and make at-home maintenance treatments part of their grooming routine.

Over-the-counter whitening products provide good results in some cases, but many patients find the best results in the dentist’s chair or with professional-strength take-home products from the dentist. Under the supervision of Dr. Regni, you can achieve the look you want in the shortest possible time, without worries about damage to precious tooth enamel.

Options at Smiles by Design

Taking a holistic approach to cosmetic dentistry, Dr. Regni and his associates always start with a general exam and cleaning. For whitening, our practice offers two brand-name professional products: KöR® and Sapphire™. Both include in-office and take-home options. The right choice for you depends upon your timeline, treatment goals, budget, and personal preference.

Many patients choose to have a single treatment in the office, and then use custom trays and bleaching gel at home. For the most vivid whitening results, Dr. Regni recommends this combined method. You can also choose to receive just the in-office treatment or the take-home kit alone. Either treatment offers noticeable whitening effects.

KöR® Whitening

KöR® is an internationally known brand that yields dramatic whitening results. Unlike some treatments, KöR® can whiten even intrinsic stains caused by tetracycline antibiotics or by other factors that can darken the dentin below the enamel of the tooth. KöR® uses a dual-activated, Tri-Barrel™ Hydremide® peroxide formulation and delivery system, which breaks down pigment and stain molecules trapped deep inside the tooth’s structure.

The in-office KöR® treatment utilizes an extra-strength gel, and does not require use of an activating light. Custom KöR-Seal™ trays are specially designed to seal out saliva and other fluids that have been shown to dilute and diminish the effectiveness of peroxide. This significantly increases the potency of the gel for office and take-home treatment.

KöR® treatment also includes special desensitizers applied to prevent post-treatment pain and sensitivity. With occasional maintenance, your teeth will stay white even if you continue to enjoy beverages such as wine, coffee, and tea.


The Sapphire™ system can also whiten your teeth several shades in a single, one-hour office appointment. For the in-office appointment, we use their most potent hydrogen peroxide activated with the Sapphire Plasma Arc™ light. During the procedure, you can relax and listen to music, watch TV or read a magazine.

The system's custom-molded take-home kits use a carbamide peroxide formulation, which is milder but effective for daily use. Patients who use the custom trays every day can reveal a lustrous, brighter smile in two weeks. Any teeth sensitivity symptoms should disappear 1-3 days after completing the treatment. We also provide treatment to provide relief for patients who have especially sensitive teeth.

Contact Us

Teeth whitening and other cosmetic dental treatments can help you make a great impression and lift your overall self-confidence. Please contact our office today to schedule an appointment.

Get In Touch

Rate, Review & Explore

Philadelphia Office

937 Christian St
Philadelphia, PA 19147

Open Today 9:00am - 6:00pm

More Info Directions (215) 351-9399