Dr. Grenn pioneered the development of the operating microscope and was the first to introduce it and use it for all procedures in Northern California. The microscope enables diagnosis and treatment with greater certainty and predictability via maximum illumination and magnification. Thus, commonly overlooked aspects of treatment that would otherwise result in eventual failure of treatment are visualized, and expertly diagnosed and treated.
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About Dr Grenn
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Dr Joseph J. Grenn, a native of Boston, Massachusetts, has been in private endodontic practice for over 20 years. He received his dental degree from Tufts University School of Dental Medicine and completed his postgraduate residency in endodontics at Harvard School of Dental Medicine. A pioneer in the development of endodontic microscopic treatment, Dr. Grenn is a past president of the California Association of Endodontists, a Harvard fellow, assistant clinical professor at the University of California San Francisco School of Dentistry, and staff member of Kaiser and CPMC hospitals. In addition, Dr. Grenn is an international lecturer on utilizing innovative technology to provide the best of care. A charter member of the American Association of Microscopic Endodontists, he has also been honored with a life membership in the American Dental Association, California Dental Association and American Association of Endodontists. 
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