A Clinical Evaluation Ndurance nano-dimer conversion technology dental composite

Objectives: To evaluate the clinical performance of this material as an anterior restorative. 

Methods: Opti-Bond Solo total-etch (Kerr, Orange, CA) was used as the dental adhesive.  Class III, IV, V, incisal edge repairs, diastema closures and direct veneer restorations were placed in anterior teeth.  With the IRB approval, a total of 52 restorations were placed in 30 patients. Some patients were dropped over time, so not all of those were evaluated at the three year evaluation.  Restorations were evaluated at two-week baseline period, 6 months, 1 year, 18 months, 2 years, 3 years, with a future evaluation to be at 4 years.  Restorations were evaluated for the following variables: Anatomic Form (AF), Color Match (CM), Marginal Adaptation (MA), Marginal Discoloration (MD), Surface Staining (SS), Retention (RT), Secondary Caries (SC), Fracture (FX) and Polishability (PL) using a modified USPHS evaluation system. 

 Results:

Results at the three year evaluation were excellent in most categories.   The following results are in percentages (%) at the one year evaluation.

                        AF       CM      MA      MD      SS       RT      SC      FX       PL

Alpha             100     76        95        100     100     100     100     100     100

Bravo             0          24        5          0          0          0          0          0          0

Charlie           0          0          0          0          0          0          0          0          0

Delta              0          0          0          0          0          0          0          0          0

None of the patients exhibited postoperative sensitivity or exaggerated gingival response.  In general, all the restorations were initially judged to be clinically satisfactory. 

Conclusions:

The Ndurance composite produces good clinical results for anterior restorations at the three year evaluation with no postoperative sensitivity or gingival irritation.