We are the only dental/medical office in Rancho Cucamonga with a dentist/doctor (Dr. Brien Hsu) board certified by the American Board of Orofacial Pain. The medical and dental specialty of Orofacial Pain incorporates the prevention, evaluation, diagnosis, treatment, and rehabilitation of orofacial pain disorders. Patients with these disorders may incur pain and associated symptoms arising from a multitude of causes including postoperative pain or pain associated with a malignancy, or may be syndromes in which pain constitutes the primary problem, such as TMJ disorder pain, neuropathic pain or headaches.


Sleep apnea can reveal its presence in a number of ways, and each patient may have a unique combination of symptoms. Dr. Brien Hsu is the only dentist in Rancho Cucamonga to attain the original Diplomate status through the written examination and submission of numerous sleep medicine clinical case studies approved by the American Board of Dental Sleep Medicine. In addition he is the first dentist from the USC School of Dentistry to publish an article in the prestigious Journal of Clinical Sleep Medicine. Many of his patients who cannot tolerate CPAP therapy have benefited from his specially designed oral appliances, which prevents airway blockage.


Abnormalities in the oral cavity are diagnosed thorough clinical history, careful examination, and laboratory studies including culture and biopsy are critical. These methods help us distinguish and manage oral mucosal and osseous lesions of the mandible and maxilla. It is important to understand that many times these abnormalities are non-neoplastic and are oral mucosal growths, inflammation and ulcerations as a result of a developmental (congentital, hereditary, etc.) or a reactive (inflammation, trauma, autoimmunity, etc.) etiology.

Dental Services

brien on tooth

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Top Dentists in Rancho Cucamonga

We are a leading dental practice in Rancho Cucamonga, California. At Comfort Care Dental, we understand the importance of good dental hygiene and oral care and are committed to providing the best care. Our doctors have been serving the Alta Loma, Rancho Cucamonga, Upland, Fontana, Ontario and other areas for decades.  We pride ourselves with providing the highest quality in dental treatment using state-of-the-art clinical technology and modern infection control. In addition, we strive to create a practically pain-free environment, so that our patients’ dental needs can be achieved with the utmost comfort and ease of mind. As one of the premier dental offices in Rancho Cucamonga, we thank you for your interest in our services and the trust you have placed in us. We look forward to the opportunity to serve you.


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