Glass-ionomer cements in dental practice: a national survey

Certain characteristics of glass-ionomer cements would appear to make them desirable dental materials; however, many practitioners are reluctant to use them because of reports of postoperative sensitivity. The members of the Academy of Operative Dentistry were surveyed in order to assess quantitatively and qualitatively the use of glass-ionomer cements in their practices, as well as the incidence and nature of postoperative sensitivity. The following data were collected: 1) the past and present use of glass-ionomer cements, 2) reasons for disuse of glass-ionomer cements, 3) products which are or have been used, and 4) the incidence of and resolution of postoperative sensitivity. The results are presented and discussed. An interesting secondary finding identified that zinc phosphate when used as a luting agent may contribute to postoperative sensitivity more often than is appreciated.