Consultants’ Comments

• “Finally, there is a therapeutic liner that reduces sensitivity and is easy to place.”
• “None of the teeth treated with Th eraCal LC needed root canal treatments.”
• “In patients who had a history of postoperative sensitivity, TheraCal LC was exceptional in reducing or eliminating the discomfort.”

Purpose

The purpose of this clinical study was to determine the clinical
performance of TheraCal LC (Bisco Dental Products).

Placement

Ninety-seven restorations placed in 55 patients were evaluated at placement for:
• Type of tooth
• Level of caries risk
• Type of pulp cap
• Bonding agent and restorative material used
• Patient sensitivity before placement

The types of teeth and types of restorations are indicated in Figures 1 and 2. Eight restorations were noted as being very deep but there is no record of any requiring root canal treatments at a later date. There were no direct pulp caps. All placements were indirect pulp caps, liners under deep restorations or in teeth with a history of significant sensitivity. Levels of caries risk are indicated in Figure 3. The teeth were restored using 11 resin composites, two ceramics and eight self-etching bonding agents.

Results at Six Months

Recalled restorations were evaluated in the following categories:

• Postoperative sensitivity as reported by the patient
• Necessity of endodontic treatment
• Percentage of direct and indirect pulp caps that required endodontic treatment
• Percentage of teeth classified by caries risk that required endodontic treatment

Of the 14 restorations eligible for six-month recall, nine were
available for evaluation. No postoperative sensitivity was
reported by patients. None of the teeth required endodontic
treatment.

Summary

TheraCal LC had excellent performance at six months. No postoperative sensitivity was observed six months after placement. None of the teeth required endodontic treatment. TheraCal LC received a100% clinical rating at the six-month recall.