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Indirect and Direct Restorative Protocols - Caulk

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› “SmartCem2 is a valuable addition to my practice<br />

because of the effi ciency <strong>and</strong> time savings it affords me<br />

as well as my patient during the seating appointment.”<br />

Ronald A. Feinman, DMD<br />

Private practice, Atlanta, GA.<br />

Figure 3. A coat of the resin cement (ie, SmartCem2, DENTSPLY<br />

<strong>Caulk</strong>, Milford, DE) is applied to all surfaces that will contact the prepared<br />

tooth to eliminate any voids that may occur during the seating of<br />

the restoration (Courtesy: R.A. Feinman, Atlanta, GA).<br />

Figure 4. A tack cure of the cement can often allow the clinician to<br />

remove gross excess prior to fi nal curing of the luting cement without<br />

dislodging the restoration. Interproximal fl ossing can complete removal<br />

of excess cement prior to fi nal curing.<br />

› Recommendations<br />

for Cement Selection<br />

<strong>and</strong> Application<br />

■ The resin cement <strong>and</strong><br />

adhesive should have<br />

compatible activation<br />

mechanisms (eg, dualcured<br />

resin with<br />

dual-cured adhesive);<br />

■ Conventional resin<br />

cements are often indicated<br />

for less-retentive<br />

tooth preparations;<br />

■ Postoperative sensitivity<br />

can be minimized<br />

through agents such<br />

as Calm-It Desensitizer<br />

(DENTSPLY <strong>Caulk</strong>,<br />

Milford, DE); <strong>and</strong><br />

■ The radiopacity of the<br />

cement should enable<br />

subsequesnt evaluation<br />

for marginal decay.<br />

can opt for Prime & Bond® NT or XP<br />

BOND (DENTSPLY <strong>Caulk</strong>, Milford, DE)<br />

prior to light curing <strong>and</strong> application of<br />

the resin cement. Each of these materials<br />

provides versatility for use in light- <strong>and</strong><br />

dual-cured indications <strong>and</strong> favorable<br />

bond strengths that surpass those of similar<br />

etch-<strong>and</strong>-rinse adhesives. For a less<br />

technique-sensitive adhesive procedure,<br />

a self-etching system such as Xeno® IV<br />

(DENTSPLY <strong>Caulk</strong>, Milford, DE) may be<br />

employed to facilitate bonding.<br />

A resin-based, self-adhesive cement<br />

such as SmartCem2 (DENTSPLY<br />

<strong>Caulk</strong>, Milford, DE) might also be<br />

selected for its high strength <strong>and</strong><br />

convenience. Bonding is generally unnecessary<br />

with self-adhesive cements.<br />

This cement can be dispensed either<br />

via automix syringe or automix digit<br />

targeted delivery system according to<br />

the clinician’s preference; SmartCem2<br />

eliminates the time <strong>and</strong> inconveniences<br />

often associated with mixing or capsule<br />

activation. Its excellent retentive <strong>and</strong> mechanical<br />

strengths to dentin <strong>and</strong> enamel<br />

ensure that the cement bonds effectively<br />

to porcelain, composite, <strong>and</strong> metal<br />

restorations, <strong>and</strong> that SmartCem2<br />

effectively seals margins.<br />

Once SmartCem2 is applied to the<br />

restoration <strong>and</strong> placed on the prepared<br />

tooth (Figure 3), the restoration may be<br />

gently manipulated into place for optimal<br />

seating. The “gel phase” of SmartCem2<br />

(DENTSPLY <strong>Caulk</strong>, Milford, DE) starts<br />

approximately one to two minutes thereafter<br />

<strong>and</strong> lasts about one additional<br />

minute—providing the clinician with a<br />

favorable working time chairside. A tack<br />

cure of less than 10 seconds can also be<br />

used to initiate the gel phase. A scalpel<br />

<strong>and</strong> floss can then be used to remove any<br />

excess cement material (Figure 4). When<br />

the final curing has been completed, the<br />

indirect restoration can be smoothed<br />

lightly with a carbide finishing bur<br />

(eg, Midwest® Esthetic Finishing Bur,<br />

DENTSPLY Professional, York, PA) <strong>and</strong><br />

then polished to the desired appearance,<br />

with the clinician taking care to ensure<br />

its final luster <strong>and</strong> finish. ■<br />

22

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