At a glance
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Resin Based Composite Occlusal Restoration Postoperative Hypersensitivity: Randomized Comparative Effectiveness Research Trial
In Brief
A Phase 3 clinical trial evaluating Restoration with a dentin bonding agent (DBA) and Restoration with a resin modified glass ionomer liner (RMGI) for Dental Caries. Completed, enrolled 341 participants across 41 sites.
Detailed Summary
Postoperative hypersensitivity (POH) is a problem for many patients as determined by the recent Practitioners Engaged in Applied Research and Learning (PEARL) study of POH following occlusal caries restoration. The objectives of this two-armed randomized comparative effectiveness research trial (RCERT) are to determine whether adding a resin modified glass ionomer liner (RMGI) reduces POH in dentin bonded Class I resin based composite (RBC) restorations, and to identify other factors (putative risk factors) that are associated with increased POH. The primary outcome of this study is the reduction/elimination of restoration POH as measured by clinical assessment (air stream) and patient-reports. Outcomes will be ascertained via the following specific aims: Specific Aim 1: To compare the reduction of hypersensitivity of study teeth by clinical measurement (air drying) and by patient-reported outcomes among the two treatment groups at three points in time: prior to restoration and at one and four weeks postrestoration. Specific Aim 2: To identify putative risk factors for POH (or factors associated with differences in POH) including: preoperative caries stage measured by the proposed American Dental Association (ADA) Caries Classification System (CCS), lesion depth as measured on the preoperative radiograph, dentin caries activity ranked on opening the lesion, preparation depth, and patient sleep bruxism status.
Study Details
Timeline
Interventions
Restoration with a dentin bonding agent (DBA) and hybrid resin-based composite: Use of a self-etch DBA Clearfil SE Bond followed by Herculite Ultra resin-based composite (Sybron/Kerr), comprising a state-of-the-art bonding and restoration system for cervical lesions.
Restoration with a resin modified glass ionomer liner (RMGI) (Vitrebond LC, placed on the pulpal floor at a thickness of approximately 0.5 mm) followed by application of a two step self etch DBA and nanofilled resin based composite (RBC).