The International Academy of Oral Medicine and Toxicology (IAOMT) tọrọ ntọala na nkwenye na "Sayensị" kwesịrị ịbụ ihe ndabere nke usoro nyocha na ọgwụgwọ niile dabere.
N'ịgbaso nkà ihe ọmụma ahụ, anyị ebipụtala ọtụtụ akwụkwọ ọkwa na-eji ozi dị na akwụkwọ ọgụgụ, akwụkwọ nyocha, na akwụkwọ akụkọ nyocha nke ndị ọgbọ na-ebipụta na gburugburu ụwa.