Fusio Liquid Dentin (1 yr)

Consultants’ Comments

  • “Excellent translucency - blends well.”
  • “Glossy.”
  • “Easy product to use, especially on sensitive cervical areas.”
  • “Add an opaque shade.”


Fusio Liquid Dentin is a self-adhesive, low-viscosity composite available in shades A1, A2, A3 and B1. This new class of composite bonds to enamel and dentin without the use of a separate etchant or bonding agent. Placement involves dispensing material from the syringe directly on the tooth, agitation for 10 seconds followed by a 20-second light cure. Fusio Liquid Dentin is indicated for pit & fissure sealants, blocking out undercuts, base/liner, small class I, class III, and class V restorations. Fusio Liquid Dentin is available in 1 ml syringes with 19-guage tips. Fusio Liquid Dentin received a 96% clinical rating.

Clinical Evaluation Protocol

  • This evaluation was limited to Class V restorations.
  • During a 9-month period, 202 Fusio restorations were placed in 90 patients.
  • Teeth with cervical erosion/abrasion or cervical caries were selected for treatment. 160 non-carious erosion lesions and 42 carious lesions were treated.
  • Non-carious teeth were prepared by either placing a retention groove with a ¼-round bur or using a diamond to develop V-shaped retention.
  • Thirty patients with 56 Fusio restorations have had return visits in which their restorations were evaluated (Figure 1).
  • At recall restorations were evaluated for surface smoothness, esthetics, margin staining, retention and sensitivity. Restorations were evaluated on a 1-5 rating scale: 1 = poor, 2 = fair, 3 = good, 4 = very good, 5 = excellent.





Clinical Observations

Surface Smoothness and Esthetics
Fusio Liquid Dentin
restorations have retained their polish with glossy surfaces (Figure 2). No change in color has been noted, and esthetics was highly rated. No roughness or graininess of the composite was evident. Three restorations were judged to be too translucent. Yet in most cases the translucency of the material contributed to the excellent visual blending of the composite with the enamel.

Marginal Discoloration
has exhibited excellent resistance to staining at the margins of the restorations to this point (Figure 2). Ninety-six percent of restorations had no margin staining. Two restorations that did develop stain were on a single patient who is a heavy smoker.

Three early debonds were seen within the first month after placement - all on teeth treated for caries. Three later debonds were recorded at five and six months after placement; these were restorations in abrasion lesions. The overall retention rate was 89.3% (Figure 2).

Only one case of postoperative sensitivity was reported when patients were asked at their recall appointments (Figure 2). In this case a tooth treated for cervical abrasion maintained some slight sensitivity even after the filling was applied.


Over 200 Class V Fusio Liquid Dentin restorations were placed. As patients returned for regularly scheduled dental visits, these restorations were evaluated. Fifty-six restorations were evaluated at recall, and the ages of the restorations ranged from one to ten months. In this group of patients, just over 10% of the restorations debonded. As recall is ongoing, THE DENTAL ADVISOR will continue to update this number. The remainder of the restorations maintained a high level of esthetics and lack of sensitivity.