Dr. Kevin Chin at City of Angels Dentistry offers professional in-office whitening and custom take-home whitening trays — same-week appointments available.


Most patients who come in for teeth whitening at City of Angels Dentistry have already tried at least one over-the-counter option. Dr. Kevin Chin has been providing professional whitening in Downtown Los Angeles since 2018, and the conversation at every whitening consultation is the same: what kind of staining do you have, is it intrinsic or extrinsic, and which approach will give you the best result for your specific teeth? Not every stain responds to bleaching, and he'll tell you that upfront.
Dr. Chin assesses the type and extent of your staining and recommends the best whitening approach for your teeth — in-office Zoom, custom take-home trays, or a combination.
In-office: Philips Zoom is applied in the chair with a UV activating light. One session produces visibly whiter teeth. Take-home: Custom-fitted trays are used with professional-grade gel at home over 1–2 weeks.
Custom trays are provided for ongoing touch-up maintenance. Dr. Chin advises on whitening frequency and lifestyle habits to maintain your result.
Professional teeth whitening at City of Angels Dentistry removes years of surface and subsurface staining with professional-strength peroxide that over-the-counter products can't match. Same-week whitening appointments available in Downtown LA.

Professional teeth whitening at City of Angels Dentistry uses pharmaceutical-grade peroxide to remove staining from enamel that over-the-counter products can't reach. Dr. Kevin Chin offers Philips Zoom in-office whitening and custom take-home whitening trays for patients throughout Downtown LA.
Professional whitening is most effective for extrinsic staining — surface discoloration from coffee, tea, wine, tobacco, and aging. It has limited effectiveness on intrinsic staining — discoloration inside the tooth caused by antibiotics, fluorosis, or trauma. For intrinsic staining that bleaching can't address, veneers or bonding are more appropriate solutions. Dr. Chin identifies which type applies at the consultation.
In-office Philips Zoom delivers the most dramatic result in the shortest time — one 60–90 minute appointment produces visible whitening. Custom take-home trays use a lower concentration worn over 1–2 weeks, producing comparable results more gradually with less sensitivity. Many patients combine in-office treatment with take-home trays for maximum initial whitening plus ongoing maintenance.
Most whitening results last 6 months to 2 years depending on diet and lifestyle. Avoiding heavy staining foods and beverages and using touch-up trays periodically can significantly extend the result. Dr. Chin provides maintenance guidance at the whitening appointment.
City of Angels Dentistry is at 1127 Wilshire Blvd, Suite 1100 in Downtown LA — accessible from Bunker Hill, the Financial District, the Arts District, Koreatown, Echo Park, and Silver Lake.
Professional whitening performed under dental supervision is safe for most patients with healthy teeth and gums. Dr. Chin screens for contraindications before whitening and uses sensitivity-minimizing protocols throughout treatment.
In-office Philips Zoom and custom take-home trays are priced separately. Dr. Chin provides clear pricing at the whitening consultation. Whitening is not covered by dental insurance as it is considered cosmetic.
Whitening only affects natural tooth enamel — it does not change the color of crowns, veneers, or bonding. Patients with existing restorations should discuss this with Dr. Chin before whitening to ensure the shade of their restorations will match the whitened natural teeth.
Temporary sensitivity during and after whitening is common, especially with in-office treatment. Dr. Chin uses desensitizing agents and recommends sensitivity toothpaste before and after whitening. Sensitivity typically resolves within 24–48 hours.