User talk:Edwardchangjinpark

August 2022
Hello, I'm Yamaguchi先生. I noticed that you added or changed content in an article, Tooth brushing, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. Yamaguchi先生 (talk) 22:25, 1 August 2022 (UTC)


 * Dear Yamaguchi Thank you for your opinion. I fully understand what you say.
 * I am a dentist who focused on prevention and individual oral hygiene. As a board member of Korean Academy of preventive dentistry and Oral hygiene. I tried but, In a scientific aspect, it is very hard to make an article about the method of toothbrushing, because there're a lot of bias. Actually there're no evidences in other methods also, it is only historical ones. As you know, Dr. Bass is not a dentist but a medical doctor, He developed a new method and accepted best method now. but before he died, nobody allows to publish those concept in dental journals and textbook. The SOOD technique is now on some textbook in Korea and As a clinician, I see the changes of the patients' health.
 * I hoped and believed that It can be different to the era of Dr. Bass with the help of Web like Wikipedia. but reliable source is needed, those will be after my death like Bass and other dentists in the method section. Edwardchangjinpark (talk) 03:53, 2 August 2022 (UTC)