TY  - RPRT
TI  - Marginal bone levels around maxillary implants supporting overdentures or fixed prostheses: a comparative study using detailed narrow-beam radiographs.
AU  - S Palmqvist
AU  - K Sondell
AU  - B Swartz
AU  - B Svenson
UR  - https://pubmed.ncbi.nlm.nih.gov/8666455/
ID  - 8666455
ER  -