Course Summary:
Don’t Be Obtuse: Confidently Treat the Black Triangle
Black interdental triangles are present in a wide swath of our patient population – both as a post-orthodontic complication and as an effect of long standing periodontal disease. Even though we see them frequently, they can be unpredictable to restore – unless you have the right armamentarium to do so. This course will cover options to treat black triangles: with the help of anatomic shaped mylar, good tissue retraction techniques and predictable results by diving into the reasons the triangles popped up in the first place. By better understanding the etiology of black triangle spacing and your patient’s perspective, you will walk away with some ideas on how to present treatment options the next time your patient asks about it.
Learning Objectives:
- Understand the common etiologic factors of unsightly spaces at the gingival level
- Realize the treatment options, and understand the benefits of additive dentistry to close black triangle spaces
- Consider the pros and cons of alternatives to restorative dentistry
- Review techniques for closing black triangles, and not just in the esthetic zone
Speaker:
Dr. Lauren Yasuda Rainey, DDS

Speaker Bio:
Dr. Lauren Yasuda Rainey is a graduate of the University of the Pacific, Arthur A Dugoni School of Dentistry and completed a General Practice Residency at Tufts University School of Dental Medicine. At Tufts she was introduced to the use of surgical microscopes for restorative care, which she continues to use today. In addition to clinical practice, Dr. Rainey began teaching at the Dugoni School of Dentistry in the Department of Reconstructive Dental Sciences and the Department of Dental Practice. There she taught both lectures and hands-on coursework in teledentistry, pre-clinical fixed and direct restorative and local anesthesia administration.
Dr. Rainey teaches direct composite restorative programs including black triangle closures, predictable Class II techniques and is an advocate for using composite resin for crown alternatives wherever possible. She teaches dentists in the US and Canada, both in-person and in virtual hands-on formats, oftentimes using a surgical microscope for enhanced visualization.
In 2016, Dr. Rainey purchased a paper chart, PPO-based practice, and fully transitioned to a digital fee-for-service boutique practice in Berkeley, California. She is active in giving back to her communities through her involvement in Girl Scouts, Mommy Dentists in Business. She currently sits on the board of the Alumni Association at the Dugoni School of Dentistry and is a speaker for Catapult Education’s Speakers Bureau. In her free time, you can find her outdoors, mentoring young women interested in the health professions or whipping up a cake.
Bookings
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