Hospital-Based & Special Care Dentistry

Now scheduling through Phoenix Pediatric Dentists

Request a Consultation
Request a Consultation

When booking, please request a consult specifically with Dr. Shannon Weir for adult, special needs, hospital-based, or sedation care.

Lionheart Dental logo featuring a stylized lion's head, the name 'Lionheart Dental' in blue with a red heart dotting the 'i', and the slogan 'COURAGEOUS CARE BEYOND BARRIERS' in gold.
A young boy with short brown hair and light skin, smiling with his mouth slightly open, showing missing front teeth, in a gray shirt, lying on a bed with a dark brown pillow and a patterned pillow behind his head.

About

Lionheart Dental was born from both professional experience and personal purpose.

As a hospital-trained dentist, Dr. Shannon Weir built her career caring for medically complex patients, adults with disabilities, and individuals who need access to sedation or hospital-based dentistry. But the deeper mission behind Lionheart comes from her son, Loyal.

Loyal lives with a rare KCNT1-related epileptic encephalopathy, a severe degenerative seizure disorder that affects every aspect of daily life. Though he faces profound physical limitations and endures countless seizures, he continues to meet each day with a sweetness and joy that has forever shaped the heart of this practice.

Through Loyal, Dr. Weir has experienced firsthand the challenges families face when trying to access safe, compassionate healthcare for people with disabilities. He is the inspiration behind Lionheart’s commitment to building a dental home where medically complex and special needs patients are not treated as exceptions, but as the reason the practice exists.

The name Lionheart reflects the courage, resilience, and quiet strength that Loyal embodies every day. His spirit is the foundation of our mission: to remove barriers, expand access, and provide exceptional dental care for patients who deserve to be seen, supported, and safely treated in the setting that best meets their needs.

Lionheart Dental exists because every patient deserves brave, compassionate care.

About Dr. Shannon Weir

Dr. Shannon Weir is a hospital-trained dentist with advanced experience caring for adults, medically complex patients, and individuals with special healthcare needs. Her clinical expertise includes hospital-based dentistry, sedation, oral surgery, restorative care, and comprehensive treatment planning for patients who require a higher level of support than traditional dental settings can provide.

After completing two years of hospital residency training and serving as Chief Resident at the University of Utah Hospital, Dr. Weir returned home to Arizona, where she now provides specialized care for patients whose needs extend beyond the traditional dental office.

Dr. Weir is currently available for consultations and treatment in partnership with Phoenix Pediatric Dentists, where she sees adult and special needs patients in the outpatient setting. Care is available across the full spectrum of anesthesia support, including local anesthesia, nitrous oxide, oral sedation, IV sedation, and general anesthesia in collaboration with an anesthesiologist.

For patients who require hospital-level support, she also maintains privileges at multiple hospital systems across the Valley.

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  • Hospital Dentistry & Operating Room Care

  • Sedation Dentistry

  • Special Needs & Disability-Focused Dentistry

  • Adult Comprehensive Dentistry

  • Oral Surgery & Extractions

  • Implants, Restorative & Full-Mouth Rehabilitation

Our Services