Dear Khun Armando
Many time for explained to you and your team about leave...
Sick leave may be used for doctor/dentist or other health care provider appointments when it is not possible to schedule them during non-working hours.
Sick time used for health care provider appointments, which are not medically urgent, should be scheduled in advance and approved by the supervisor.
Sick leave is provided for the reasons stated (Other Health Care ) and may not be used for other purposes. Sick leave may not be advanced.
In this case he tooth pain and then he want to repair his teeth? You are Supervisor please consider and make your decision
In this case Khun Amporn has been out on sick leave for more than three (3) consecutive work days, he is required to submit documentation
from a health care provider certifying the medical necessity for the absence and the expected date of return to work.
That all for my recomend
Best regards,