地层砂部分充填的炮眼
partially sand packed perforation
第一步炮眼充填
first-stage perforation pack
倒充填材料
Root-end filling materials
根管充填材料
Root canal filling material
obturation materials
Root Ca nal Filling Materials
Human periodontal ligament fibroblast
Root canal tilling materials
root canal filling materids
root canal filling materials
根尖倒充填材料
Root-end filling materials
胶结充填材料
Cemented backfilling materials
binder backfill material
cementing fill material
乳牙根管充填材料
Primary tooth root canal sealer