M J Tyas1. 1. School of Dental Science, The University of Melbourne. m.tyas@unimelb.edu.au
Abstract
BACKGROUND: There are few Australian data on the reasons for placement and replacement of restorations, and the extent to which these are carried out in general practice. METHODS: A survey was carried out of approximately 100 consecutive restorations placed by each of 28 general dental practitioners. The data were coded and statistically analyzed for various associations. RESULTS: Resin composite was used twice as frequently as amalgam as a restorative material, and nearly four times as often as glass-ionomer cement. Secondary caries was the principal reason for replacing restorations, affecting predominantly amalgam restorations in Class I and Class V cavities. Teeth restored with amalgam fractured nearly twice as often as teeth restored with resin composite. The average ages of amalgam, resin composite and glass-ionomers at replacement were 13.6, 7.1 and 5.7 years respectively. CONCLUSIONS: Amalgam has the longest clinical service life, but is associated with more tooth fracture. Secondary caries is the main reason for replacing restorations. The anti-cariogenic effect of glass-ionomer cement is equivocal.
BACKGROUND: There are few Australian data on the reasons for placement and replacement of restorations, and the extent to which these are carried out in general practice. METHODS: A survey was carried out of approximately 100 consecutive restorations placed by each of 28 general dental practitioners. The data were coded and statistically analyzed for various associations. RESULTS: Resin composite was used twice as frequently as amalgam as a restorative material, and nearly four times as often as glass-ionomer cement. Secondary caries was the principal reason for replacing restorations, affecting predominantly amalgam restorations in Class I and Class V cavities. Teeth restored with amalgam fractured nearly twice as often as teeth restored with resin composite. The average ages of amalgam, resin composite and glass-ionomers at replacement were 13.6, 7.1 and 5.7 years respectively. CONCLUSIONS: Amalgam has the longest clinical service life, but is associated with more tooth fracture. Secondary caries is the main reason for replacing restorations. The anti-cariogenic effect of glass-ionomer cement is equivocal.
Authors: Marcelle M Nascimento; Valeria V Gordan; Vibeke Qvist; Mark S Litaker; D Brad Rindal; O D Williams; Jeffrey L Fellows; Lloyd K Ritchie; Ivar A Mjör; Jocelyn McClelland; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2010-04 Impact factor: 3.634
Authors: Valeria V Gordan; Joseph L Riley; D Brad Rindal; Vibeke Qvist; Jeffrey L Fellows; Deborah A Dilbone; Solomon G Brotman; Gregg H Gilbert Journal: J Am Dent Assoc Date: 2015-12 Impact factor: 3.634