r/newsokunomoral•7 mo. agodumbTelephone虫歯の「削り」は最小限に 材料や検査技術が進化、自前の歯長持ちnikkei.com/article/DGXZQOSG066CK0W6A300C2000000/nikkei.comPosted Mar 14, 2026, 7:26 AM UTC81ShareSave