TY - JOUR
T1 - The survival of Class V restorations in general dental practice. Part 2, early failure
AU - Stewardson, Dominic
AU - Thornley, P
AU - Bigg, T
AU - Bromage, C
AU - Browne, A
AU - Cottam, A
AU - Dalby, D
AU - Burke, Frederick
PY - 2011/6/10
Y1 - 2011/6/10
N2 - OBJECTIVE
To evaluate Class V restorations placed by UK general practitioners comparing those failing or surviving after two years, and to identify factors associated with early failure.
DESIGN
Prospective longitudinal cohort multi-centre study. Setting UK general dental practices.
MATERIALS & METHODS
Ten dentists each placed 100 Class V restorations and recorded selected clinical information at placement and recall visits. Univariate associations were assessed between recorded clinical factors and whether restorations had failed or not at two years. Multi-variable binary logistic regression was also undertaken to identify which combination of factors had a significant effect on the probability of early failure.
RESULTS
At two years, 156 of 989 restorations had failed (15.8%), with 40 (4%) lost to follow-up. Univariate analysis showed a significant association between restoration failure and increasing patient age, payment method, the treating practitioner, non-carious cavities, cavities involving enamel and dentine, cavity preparation and restoration material. Multi-variable analysis indicated a higher probability of early failure associated with the practitioner, older patients, glass ionomer and flowable composite, bur-preparation and moisture contamination.
CONCLUSIONS
Among these practitioners, both analytic methods identified significant associations between early failure of Class V restorations and the practitioner, cavity preparation method, restoration material and patient's age.
AB - OBJECTIVE
To evaluate Class V restorations placed by UK general practitioners comparing those failing or surviving after two years, and to identify factors associated with early failure.
DESIGN
Prospective longitudinal cohort multi-centre study. Setting UK general dental practices.
MATERIALS & METHODS
Ten dentists each placed 100 Class V restorations and recorded selected clinical information at placement and recall visits. Univariate associations were assessed between recorded clinical factors and whether restorations had failed or not at two years. Multi-variable binary logistic regression was also undertaken to identify which combination of factors had a significant effect on the probability of early failure.
RESULTS
At two years, 156 of 989 restorations had failed (15.8%), with 40 (4%) lost to follow-up. Univariate analysis showed a significant association between restoration failure and increasing patient age, payment method, the treating practitioner, non-carious cavities, cavities involving enamel and dentine, cavity preparation and restoration material. Multi-variable analysis indicated a higher probability of early failure associated with the practitioner, older patients, glass ionomer and flowable composite, bur-preparation and moisture contamination.
CONCLUSIONS
Among these practitioners, both analytic methods identified significant associations between early failure of Class V restorations and the practitioner, cavity preparation method, restoration material and patient's age.
U2 - 10.1038/sj.bdj.2011.430
DO - 10.1038/sj.bdj.2011.430
M3 - Article
C2 - 21659987
SN - 1476-5373
VL - 210
SP - E19
JO - British Dental Journal
JF - British Dental Journal
ER -