Well, speaking as a member of the dental profession, I have not yet had a patient come in wearing a kilt, nor have I ever worn my kilt in the office / surgery.

I have seen one chap wearing his kilt with his leg in plaster leaving the outpatient department of the Edinburgh Royal Infirmary some years ago - which I thought showed good lateral thinking - great excuse to wear a kilt, and it saved him cutting the leg off one of his trousers also.

Dental and medical students are expected to dress in a profesional manner during training and are often ticked off (and sometimes sent home) if they turn up in scruffy clothing (jeans, t-shirts etc). There is an apocryphal story about one dental student being sent home for wearing old jeans and being told that he would not be allowed back until he came back in something more professional and acceptable. He came back wearing his kilt (which was the only other item of clothing he had available). History does not relate if he wore it to the clinics for the rest of the teaching session or indeed for the rest of the term but it's a good story!