Customization of the clinical session timetables by undergraduate dental students at Mahidol University

Main Article Content

Aree Watcharasottikul
Waitayanuch Petchbundi
Warungkana Chidchuangchai


Objective: The aim of this study was to investigate the frequency, period, and causes of dental students’
customization of their timetable in clinical courses to improve timetable management.

Materials and Methods: The data were retrieved from the request letters for changing clinical session
timetables submitted by Year-4, Year-5, and Year-6 dental students in academic year 2019 at the Faculty of
Dentistry Mahidol University. The data were analysed in terms of frequency, period of the year, and reasons
for the change.

Results: Two-hundred and ninety-one request letters revealed that: 1). The Year-6 dental students most frequently submitted the request forms for a change in clinical session timetables, which comprised 47.08% of the letters, while the forms submitted by the Year-5 and the Year-4 students comprised 43.30% and 9.62%, respectively. 2).The most common period of the year that students requested a change in timetables was October 2019 (20.96%); the second and third most common were September 2019 (20.62%) and November 2019 (16.84%), respectively. 3).The most common reasons for requesting a session change were patients (89.35%, e.g. inconvenient time for patients), student-related issues (5.84%), and learning systems (4.81%, e.g. treatment process, research presentations, and problems regarding the clinical timetable management system).

Conclusion: The Year-6 dental students most frequently requested changing their clinical session timetables,
especially between September–November, which was the end of the first semester. The most common reason was patient inconvenience. The relevant factors will be taken into consideration for student timetable management in clinical sessions in the future


Download data is not yet available.

Article Details

How to Cite
Watcharasottikul A, Petchbundi W, Chidchuangchai W. Customization of the clinical session timetables by undergraduate dental students at Mahidol University. M Dent J [Internet]. 2021 Nov. 16 [cited 2023 Dec. 3];41(3):245-54. Available from:
Original articles


Organisation for Economic Co-operation and Development. Do students spend enough time learning?, PISA in Focus, No.73, OECD Publishing, Paris; 2017. (Online), [cited 2021 Jul 19]. Available from:

Roessingh H, Field D. Time, timing, timetabling: Critical elements of successful graduation of high school ESL learners. TESL Canada J 2000; 18: 17-31.

Chaosakul S. Class timetabling development by using Microsoft Access: A case study of demonstration school (Education), high school section, Khon Kaen University. J Educ Khon Kaen Univ (Graduate Studies Research). 2015; 9: 191-6. (in Thai).

Ganguli R, Roy S. A study on course timetable scheduling using graph coloring approach. Int J Comput Appl Math 2017; 12: 469-85.

Cambazard H, O'Sullivan B, Simonis H. A constraint-based dental school timetabling system. AI Mag 2014; 35: 53-63.

The Dental Council Thailand. Undergraduate Dental Competencies. B.E. 2562. [cited 2021 Jul 19]. Available from:

Criteria for Approval of the Doctor of Dental Surgery program and accreditation of the Institue of Dentistry, B.E. 2561. Royal Thai Government Gazette Vol. 135, Special Part 44 d [cited 2021 Jul 19]. Available from:

Schaerf A. A survey of automated timetabling. AI Review 1999; 13:87-127.

Pillay N. A survey of school timetabling research. Ann Oper Res 2014; 218: 261-93.

Socha K, Knowles J, Sampels M, editors. A max-min ant system for the university course timetabling problem. International Workshop on Ant Algorithms; 2002: Springer.

Faculty of Dentistry; Mahidol University. Doctor of Dental Surgery Program Revised Curriculum 2012. 2012. (in Thai).

Skaret E, Raadal M, Kvale G, Berg E. Factors related to missed and cancelled dental appointments among adolescents in Norway. Eur J Oral Sci 2000; 108: 175-83.

Toews JA, Lockyer JM, Dobson DJ, Simpson E, Brownell AKW, Brenneis F, et al. Analysis of stress levels among medical students, resident, and graduate students at four Canadian schools of medicine. Academic Medicine. 1997.

Xhong-Oja F, Sonnabend E, Krapp H. Criteria leading to patient loss from dental school clinics. J Oral Rehabil 1986; 13: 339-45.

AlSadhan SA. Frequency of missed and cancelled appointments in King Saud University orthodontic clinic, King Saud University. J Dent Sci 2013; 4: 77-80.

Al-Samadani KH, Al-Dharrab A. The perception of stress among clinical dental students. World J Dent 2013; 4: 24-8.

Basudan S, Binanzan N, Alhassan A. Depression, anxiety and stress in dental students. Int J Med Educ 2017; 8: 179-86.