Master’s Degree Awarded to Ms. Yusra Al-Sha’awri in Orthodontics

Ms. Yusra Ali Ali Al-Sha’awri was awarded a Master’s degree in Orthodontics with an average of (Excellent) and a grade of (95%) for her thesis titled: The Impact of Platelet-Rich Derivative Injections on Orthodontic Canine Retraction Rate: A Split-Mouth Randomized Controlled Study, which was submitted to the Department of Orthodontics, and Pediatric and Preventive Dentistry, Faculty of Dentistry – Sana’a University. The MA defense was held on Wednesday, October 15, 2025.

The MA Viva-voce Committee, which was formed based on a resolution issued by the Graduate Studies and Scientific Research Council, consisted of the following:

#	Committee Members	Designation	University	Position
1	Prof. Ghamdan Abdullah Al-Harazi	Internal Examiner	Sana’a University	Chair
2	Assoc. Prof. Naelah Mohammed Ali Al-Mujahid	Main Supervisor	Sana’a University	Member
3	Assoc. Prof. Abdulhaq Hussein Al-Hasani	External Examiner	Ibb University	Member

The study aimed to evaluate and compare the efficacy of platelet-rich derivatives (PRDs) on accelerating orthodontic tooth movement during the distal retraction of maxillary canines.

The study concluded that the use of injectable platelet-rich plasma (i-PRP) and injectable platelet-rich fibrin (i-PRF) individually enhanced the rate of canine retraction at different stages of i-PRP treatment, producing an early effect, while i-PRF contributed in later stages. However, applying both on opposite sides of the same patient’s mouth did not produce a statistically significant acceleration in tooth movement.

Based on the findings, the researcher proposed several recommendations summarized as follows:

The i-PRP and i-PRF may be considered adjunctive methods for accelerating orthodontic tooth movement, taking into account that their impact depends on injection intervals.
Orthodontists should closely monitor the abutment (anchorage stability) when using both i-PRP and i-PRF in both halves of the same patient’s mouth due to the potential risk of molar abutment loss.
The use of i-PRP and i-PRF does not appear to negatively affect pain perception, supporting their safety in terms of patient comfort.
The application of biologic adjuvants should be case-specific, balancing expected benefits with abutment requirements and long-term therapeutic goals.

The defense session was attended by a number of academics, researchers, and interested participants, colleagues and the researcher’s family members.