Randomized 3-year clinical evaluation of Class I and II posterior resin restorations placed with a bulk-fill resin composite and a one-step self-etching adhesive.

Abstract

PURPOSE:

To evaluate the 3-year clinical durability of the flowable bulk-fill resin composite SDR in Class I and Class II restorations.

MATERIALS AND METHODS:

Thirty-eight pairs of Class I and 62 pairs of Class II restorations were placed in 44 male and 42 female patients (mean age 52.4 years). Each patient received at least two extended Class I or Class II restorations that were as similar as possible. In all cavities, a one-step self-etching adhesive (XenoV+) was applied. One of the cavities of each pair was randomly assigned to receive the flowable bulk-fill resin composite SDR in increments up to 4 mm as needed to fill the cavity 2 mm short of the occlusal cavosurface. The occlusal part was completed with an ormocer-based nanohybrid resin composite (Ceram X mono+). In the other cavity, only the resin composite CeramX mono+ was placed in 2 mm increments. The restorations were evaluated using slightly modified USPHS criteria at baseline and then annually for 3 years. Caries risk and bruxing habits of the participants were estimated.

RESULTS:

No post-operative sensitivity was reported. At the 3-year follow-up, 196 restorations - 74 Class I and 122 Class II - were evaluated. Seven restorations failed (3.6%), 4 SDR-CeramX mono+ and 3 CeramX mono+ only restorations, all of which were Class II. The main reason for failure was tooth fracture, followed by resin composite fracture. The annual failure rate (AFR) for all restorations (Class I and II) was 1.2% for the bulkfilled restorations and 1.0% for the resin composite-only restorations (p > 0.05). For the Class II restorations, the AFR was 2.2% and 1.6%, respectively.

CONCLUSION:

The 4-mm bulk-fill technique showed good clinical effectiveness during the 3-year follow-up.

• Authors: Jan Wv van Dijken, Ulla Pallesen
• Journal: The journal of adhesive dentistry (J Adhes Dent) Vol. 17 Issue 1 Pg. 81-8 (Feb 2015) ISSN: 1461-5185 [Print] Germany
• PMID: 25625133 (Publication Type: Comparative Study, Journal Article, Randomized Controlled Trial)

Chemical References

• CeramX
• Composite Resins
• Dental Cements
• Dental Materials
• Dentin-Bonding Agents
• Methacrylates
• Organically Modified Ceramics
• Polymethacrylic Acids
• Polyurethanes
• Xeno V
• urethane dimethacrylate luting resin
• triethylene glycol dimethacrylate
• Polyethylene Glycols
• ethoxylated bis-phenol A dimethacrylate

Topics

• Adult
• Aged
• Aged, 80 and over
• Color
• Composite Resins (chemistry)
• Dental Caries (etiology)
• Dental Cements (chemistry)
• Dental Marginal Adaptation
• Dental Materials (chemistry)
• Dental Restoration Failure
• Dental Restoration, Permanent (classification)
• Dentin-Bonding Agents (chemistry)
• Female
• Follow-Up Studies
• Humans
• Male
• Methacrylates (chemistry)
• Middle Aged
• Nanocomposites (chemistry)
• Organically Modified Ceramics (chemistry)
• Polyethylene Glycols (chemistry)
• Polymethacrylic Acids (chemistry)
• Polyurethanes (chemistry)
• Recurrence
• Surface Properties
• Young Adult