Cardiac tamponade due to cardiac metastases
Newly diagnosed COPD - obstructive ventilatory impairment
Obesity hypoventilation syndrome
Systemic lupus erythematosus with multiple organ complications
Appendicitis acuta and Meckel diverticulum
Treatment of overjet by retraction of frontal teeth to temporary anchorage devices (TADs)
Combined orthodontic-surgical treatment of impacted teeth