TY - RPRT TI - Immediate implants supporting single crown restoration: a 4-year prospective study. AU - Ugo Covani AU - Roberto Crespi AU - Roberto Cornelini AU - Antonio Barone PY - 2004 DO - 10.1902/jop.2004.75.7.982 UR - https://pubmed.ncbi.nlm.nih.gov/15341356/ ID - 15341356 ER -