Sana'a University

This study tested whether injecting platelet-rich plasma (PRP) or platelet-rich fibrin (PRF) — made from a patient's own blood — into the gums could speed up the movement of a specific tooth during braces treatment. Twenty-one healthy young adults participated, and each person se…

This study looked at how quickly different colored and clear elastic power chains used in braces lose their pulling force. Researchers measured force decay in 96 orthodontic patients over 6 weeks. The goal was to see if color or other factors like brushing and chewing affect how …

This study compared two methods—elastic chains and elastics—for moving canine teeth backward after premolar extraction. Thirty-three orthodontic patients participated, and researchers measured how fast and how straight the teeth moved. The goal was to find a more effective way to…