Clinical performance of a hybrid resin composite with and without an intermediate layer of flowable resin composite: a 7-year evaluation

TY - JOUR

T1 - Clinical performance of a hybrid resin composite with and without an intermediate layer of flowable resin composite: a 7-year evaluation

AU - van Dijken, Jan W V

AU - Pallesen, Ulla

N1 - Copyright © 2010 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

PY - 2011/2/1

Y1 - 2011/2/1

N2 - Objective: The objective of this prospective clinical follow up was to evaluate the long term clinical performance of a hybrid resin composite in Class II restorations with and without intermediate layer of flowable resin composite. Methods: Each participant received at least two, as similar as possible, Class II restorations of the hybrid resin composite. One resin composite restoration of each pair (59) was chosen at random to be restored with an intermediary layer with flowable resin composite. The other was restored without. The 118 restorations were evaluated using slightly modified USPHS criteria at baseline and then yearly during 7 years. Results: Four drop outs were registered during the 7-year follow up (2 with and 2 without flowable) restorations. A prediction of the caries risk showed that 18 of the evaluated 46 patients were considered as high risk patients. Seventeen failures were observed, 8 in restorations with and 9 in restorations without an intermediate layer of flowable resin composite, resulting in a 14.9% failure rate after 7 years. The main reasons for failure were: fracture of resin composite (8), secondary caries (4) and cusp fracture (3). No statistical difference was seen between restorations restored with and without flowable layer. Conclusion: The hybrid resin composite showed a good clinical performance during the 7-year evaluation. The use of flowable resin composite as an intermediate layer did not result in improved effectiveness of the Class II restorations.

AB - Objective: The objective of this prospective clinical follow up was to evaluate the long term clinical performance of a hybrid resin composite in Class II restorations with and without intermediate layer of flowable resin composite. Methods: Each participant received at least two, as similar as possible, Class II restorations of the hybrid resin composite. One resin composite restoration of each pair (59) was chosen at random to be restored with an intermediary layer with flowable resin composite. The other was restored without. The 118 restorations were evaluated using slightly modified USPHS criteria at baseline and then yearly during 7 years. Results: Four drop outs were registered during the 7-year follow up (2 with and 2 without flowable) restorations. A prediction of the caries risk showed that 18 of the evaluated 46 patients were considered as high risk patients. Seventeen failures were observed, 8 in restorations with and 9 in restorations without an intermediate layer of flowable resin composite, resulting in a 14.9% failure rate after 7 years. The main reasons for failure were: fracture of resin composite (8), secondary caries (4) and cusp fracture (3). No statistical difference was seen between restorations restored with and without flowable layer. Conclusion: The hybrid resin composite showed a good clinical performance during the 7-year evaluation. The use of flowable resin composite as an intermediate layer did not result in improved effectiveness of the Class II restorations.

KW - Adult

KW - Aged

KW - Aged, 80 and over

KW - Color

KW - Composite Resins

KW - Dental Bonding

KW - Dental Caries

KW - Dental Caries Susceptibility

KW - Dental Enamel

KW - Dental Marginal Adaptation

KW - Dental Materials

KW - Dental Polishing

KW - Dental Restoration Failure

KW - Dental Restoration, Permanent

KW - Female

KW - Follow-Up Studies

KW - Humans

KW - Longitudinal Studies

KW - Male

KW - Materials Testing

KW - Methacrylates

KW - Middle Aged

KW - Prospective Studies

KW - Risk Assessment

KW - Tooth Fractures

KW - Young Adult

U2 - 10.1016/j.dental.2010.09.010

DO - 10.1016/j.dental.2010.09.010

M3 - Journal article

C2 - 20952051

SN - 0109-5641

VL - 27

SP - 150

EP - 156

JO - Dental Materials

JF - Dental Materials

IS - 2

ER -