Surgical Approaches to Midface. AOCMF seminar 2019 May. BSMMU, Dhaka.
Survival and Recurrence status of Oral Squamous Cell Carcinoma. A Report of 186 Cases. International Dental Conference 2019 April, Chittagong. Academy of Creative Dentistry. 8th International Dental Congress. Feb. 2018, KIB Auditorium, Dhaka.
Control and Management of Oral Cancer in Bangladesh. A proposal for National Program of Comprehensive Management of Oral Cancer Patients. Bangladesh International Cancer Congress 2018 October, Army Golf Club, Dhaka, Bangladesh.
Maxillofacial Surgery Overview, Dhaka Dental College and Hospital, Bangladesh. Mizan Complex Auditorium, Toronto, Canada. Feb 03, 2018.
Factors Influencing Early Recurrence and Survival of Oral Squamous Cell Carcinoma. A Report of 171 Cases. 6th International Dental Congress. (21-22 Jan 2016), KIB Auditorium, Dhaka. Head-Neck Surgery Conference 2016 (Feb 17-18, 2016), MAG Osmani Medical College and Hospital, Sylhet.
Mortality and Morbidity in Oral Cancer- How it is related with Management System. Bangladesh Cancer Congress ( 16-17 Nov. 2015). Army Golf Club, Dhaka.
Maxillofacial Surgical Pathology in Dhaka Dental College and Hospital, Bangladesh. Department of Plastic and Re-constructive Surgery, The Hospital for Sick Children, University of Toronto, Canada.(27 March 2015).
Distraction osteogenesis in mandibular deficiency due to bilateral temporomandibular joint ankylosis. 5th International Dental Congress, (23-24 Jan 2015). KIB Auditorium, Dhaka.
Mortality and Morbidity in Oral Cancer- How it is related with management system. July 2014. Marriott Marquis, New York, NY, USA.
Anatomical Subunit Surgical Technique in unilateral Cleft Lip Repair. 3th International Dental Congress. (25-26 Jan 2013). Ruposhi Bangla Hotel, Dhaka.
Modern Concept and Innovation in Oral and Maxillofacial Surgery in Bangladesh. South Asian Dental Congress. Jan.2012. Dhaka, Bangladesh.
Evaluation of periodontal status and micro-organisms in unilateral complete cleft lip and palate patients. 18th International Conference (International Association of Oral and Maxillofacial Surgeons) on Oral and Maxillofacial Surgery, Nov. 2007. Bangalore, India.
Correction of unilateral cleft lip nasal deformity. 9th International Surgical Congress. Dec. 2004. Society of Surgeons of Bangladesh. 2004. Dhaka, Bangladesh.
Correction of unilateral cleft lip nasal deformity. Conference of Asian Association of Oral and Maxillofacial Surgeons. Nov. 2004, Tokyo, Japan.
Correction of unilateral cleft lip nasal deformity. 2nd national and 1st international conference, Bangladesh Association of Oral and Maxillofacial Surgeons. Sep. 2004 Dhaka, Bangladesh.
Annual clinical audit of indoor, Dhaka Dental College and Hospital. 2nd national and 1st international conference, Bangladesh Association of Oral and Maxillofacial Surgeons. Sep. 2004. Dhaka, Bangladesh.
Inferior alveolar nerve disturbances following mandibular third molar surgery. 26th Annual Conference of Association of Oral and Maxillofacial Surgeons of India. Dec. 2000. Bangalore, India.
Upper lip reconstruction by using Abbe Flap. 13th Asia Pacific Federation Congress, International College of Surgeons. Nov. 1999, Dhaka, Bangladesh.