Research & Initiatives
Dr. Calleja is dedicated to advancing the field of Oral & Maxillofacial surgery through scientific inquiry, grant-funded innovation, and humanitarian outreach.
Explore our professional work
Scientific Research
Oral and Maxillofacial Surgery Research
View Full Profile on Google Scholar"Research Focused on General Oral and Maxillofacial Surgery."
Orthognatic surgery and acromegaly, important considerations before surgery.
Orthognatic surgery in hemophilia A
TMJ evaluation with Cone Beam CT, post condilectomy in condylar hyperplasia
Aneurysmal bone cyst in the pediatric patient: report of three cases
Advances in Head and Neck Cancer.
Other Medical Research
View Full Profile on Google Scholar"Research in the areas of public health, Cancer, Immunotherapy and Radiotherapy "
Epidemiological patterns of traumatic dental injuries (GES disease) in adult patients treated at a Chilean National Trauma Center during 2 periods
Immunotherapy and Hypofractionated Radiotherapy in Older Patients with Locally Advanced Cutaneous Squamous-Cell Carcinoma of the Head and Neck
Immunotherapy and stereotactic body radiotherapy for older patients
Immunotherapy and radiotherapy for older patients with invasive bladder cancer unfit for surgery or chemotherapy
Maxillary stability post-Le Fort I osteotomy in cleft and non-cleft patients
"Research focusing on the long-term skeletal stability of the maxilla following Le Fort I advancement."
Analysis of relapse patterns in cleft cohorts
Longitudinal follow-up on skeletal positioning
Comparative data on reconstructive techniques
Essential research for cleft and craniofacial planning
Research In Progress
Current investigations into surgical advancement and sleep medicine.
Advancing Patient-Specific Implant (PSI) Precision
Current study evaluating the integration of 3D printing and AI-driven bone segment mapping to optimize skeletal symmetry.
Volumetric Airway Analysis Post-MMA advancement
Longitudinal tracking of oropharyngeal volume and patient compliance following bi-jaw surgical advancement.
Grants Obtained
Competitive funding awarded for telemedicine, epidemiological research, and medical leadership initiatives.