title: [The clinical observation of tetracycline stained teeth covered by composite resin veneer induced of secondary gingivitis]
abstract: Using gingival index,sulcus bleeding index and plaque index of 765 tetracycline stained teeth covered by composite resin veneer after 1/2-3 years were observed.It was found that the incidence of gingivitis was over 60%.The reexamination after three months later showed that the three indexes were significantly improved by grinding teeth proper and teaching standard brushing method.
authors.affiliation: Department of Oral Medicine,School of Stomatology,Shanghai Second Medical University.Shanghai 200011, China.
authors.forename: J J
authors.initials: JJ
authors.lastname: Gu
authors.forename: C Z
authors.initials: CZ
authors.lastname: Hu
authors.forename: B
authors.initials: B
authors.lastname: Wang