TY  - RPRT
TI  - Mandibular overdentures supported by two or four endosteal implants. A prospective, comparative study.
AU  - R H Batenburg
AU  - G M Raghoebar
AU  - R P Van Oort
AU  - K Heijdenrijk
AU  - G Boering
PY  - 1998
DO  - 10.1016/s0901-5027(98)80032-5
UR  - https://pubmed.ncbi.nlm.nih.gov/9869282/
ID  - 9869282
ER  -