title: [Removal of the intact fixed prosthesis with ultrasound appliance]
authors.affiliation: Department of Endodontics, Ninth People's Hospital, School of Stomatology,Shanghai Second Medical University. Shanghai 200011, China.
authors.forename: J
authors.initials: J
authors.lastname: Hong
authors.forename: Z M
authors.initials: ZM
authors.lastname: Wang