Laurence Gaalaas, DDS, MS

Clinical Assistant Professor, School of Dentistry

Laurence Gaalaas

Contact Info

Office Phone 612-625-6951

DDS, University of Minnesota School of Dentistry, 2012

MS, University of North Carolina (Oral and Maxillofacial Surgery), 2015


Dr. Gaalaas received his dental degree from the University of Minnesota and completed specialty training and a Master of Science degree in oral and maxillofacial radiology from the University of North Carolina at Chapel Hill. As a researcher and inventor, his expertise includes clinical applications of cone beam computed tomography, caries detection and diagnosis, and development of novel imaging techniques specific to dentistry such as low dose 3D intraoral radiography and dental MRI. He is a Diplomate of the American Board of Oral and Maxillofacial Radiology, a member of the American Academy of Oral and Maxillofacial Radiology, and has ongoing teaching responsibilities plus an active radiology practice through the University of Minnesota. 


Research Summary/Interests

  • Performance evaluation of dental diagnostic imaging
  • Dental applications of carbon nanotube x-ray sources, conventional MR, and hard tissue MR
  • Evidenced-based CBCT indications and applications in clinical dentistry


Idiyatullin D, Garwood M, Gaalaas L, Nixdorf DR. Role of MRI for detecting micro cracks in teeth. Dentomaxillofac Radiol 2016;45(7):20160150.

Gaalaas L, Tyndall D, Mol A, Everett ET, Bangdiwala A. Ex vivo evaluation of new 2D and 3D dental radiographic technology for detecting caries. Dentomaxillofac Radiol 2016:20150281.

Shan J, Tucker AW, Gaalaas LR, et al. Stationary intraoral digital tomosynthesis using a carbon nanotube X-ray source array. Dentomaxillofac Radiol 2015;44(9):20150098.

Gaalaas L, Henn L, Gaillard PR, Ahmad M, Islam MS. Analysis of trabecular bone using site-specific fractal values calculated from cone beam CT images. Oral Radiology 2014;30(2):179-85.


Board Certifications

Certified by the American Board of Oral & Maxillofacial Radiology in 2016