Master’s Degree Awarded to Mr. Ibrahim Mohammed Haisam in Orthodontics

Mr. Ibrahim Mohammed Abdu Haisam ‎was awarded a Master’s Degree in Orthodontics for his thesis titled: Evaluation of Smile Aesthetics in Orthodontic Patients Using Smile Curve Template‎, which was submitted to the Department of Orthodontics, Faculty of Dentistry ‎– Sana’a University. The MA defense was held on Thursday, January 22, 2026.

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 Position
1 Prof. Yasser Ali Thabet External Examiner Chair
2 Prof. Khaled Abdulsalam Al-Haddad Main Supervisor Member
3 Assoc. Prof. Naela Mohammed Al-Mujahid Internal Examiner Member

The study aimed to:
 Assess the impact of orthodontic treatment on smile aesthetics using objective ‎indicators (the Smile Curve Model).‎
 Compare professional clinical evaluations with patients’ personal perceptions.‎
 Investigate the influence of variables such as age and gender, as well as key factors ‎contributing to aesthetic improvement.‎
The study yielded several key findings summarized as follows:
 Overall improvement in smile aesthetics was found, with the Smile Esthetic Index (SEI) ‎increasing from 1.36 to 6.30 after treatment.‎
 Tooth positioning recorded the highest improvement rate at 80%.‎
 Gingival papillae showed the lowest improvement rate at 40%.‎
 Patients’ satisfaction level (7.3) was higher than orthodontists’ evaluation (6.6).‎
Based on these findings, the researcher recommended the following:
 Conducting future studies on larger and more diverse samples to enhance the ‎accuracy and generalizability of the findings.‎
 Adopting dynamic imaging techniques (video) instead of static photographs to ‎achieve more precise assessments of smile aesthetics.‎
 Considering individual anatomical differences when developing aesthetically oriented ‎treatment plans.‎
The defense session was attended by a number of academics, researchers, students, colleagues, and the researcher’s family.