PMC4605265_01
Intraoral exam revealed an inadequate veneer made with composite resin on the right central incisor and recurrent gingivitis on superior anterior teeth.
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After anamnesis, the oral exam revealed an inadequate composite resin veneer placed on the right central incisor and recurrent gingivitis of the maxillary anterior teeth (Figures 1(a) and 1(b)).
Remaining dental structure was evaluated and it was decided to restore it with a composite resin crown.
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Thus the decision was to restore it with a composite resin crown (Figure 2).
Provisional acrylic-resin crown placed.
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The tooth was prepared and a provisional acrylic-resin crown (Jet, color 62, Classico, Sao Paulo, SP, Brazil) was placed (Figure 3).
After tooth preparation, laser phototherapy with a low power laser (660 nm) was performed in all clinical sessions (total of four sessions), on the surrounding periodontal tissue (punctually with a semiconductor laser, wavelength of 650 nm, spot size of 0,028 cm2, energy density of 35.7 J/cm2, mean power of 100 mW, and energy per point as 1 J, contact mode, in a total of 2 points totalizing 2 J of energy).
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After tooth preparation, laser phototherapy with a low power laser (660 nm) was performed (Figures 4(a) and 4(b)) on the surrounding periodontal tissue, in all clinical sessions (total of four sessions), until the final luting of the indirect resin crown.
Teeth impression with vinyl polysiloxane impression material.
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Laser phototherapy was conducted punctually with a semiconductor laser (Photon Lase I, DMC, Sao Carlos, SP, Brazil) (Figure 5), wavelength of 660 nm, spot size of 0.028 cm2, energy density of 35.7 J/cm2, mean power of 100 mW, and energy per point as 1 J, in contact mode, on a total of 2 points (mesial and distal), totaling 2 J of energy. Brazil) (Figure 5). Before final luting, the temporary restoration was removed and the prepared tooth was cleaned to remove any temporary cement.
A thin layer of adhesive system was applied using a disposable brush.
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Paul, USA) was applied with a disposable brush (KG Brush, KG Sorensen, Sao Paulo, SP, Brazil) (Figure 6) and gently air-dried.
A thin layer of composite resin was applied in the inner surface of the resin restoration, for luting.
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A thin layer of composite resin (Venus, Heraeus Kulzer, Hanau, Germany) was applied to the inner surface of the resin restoration, for luting (Figure 7).
A thin layer of bond was applied with a disposable brush on the entire tooth surface starting with the enamel and applied with slight pressure for 15 seconds, according to the manufacturer's instructions.
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Paul, USA) was applied with a disposable brush (KG Brush, KG Sorensen, Sao Paulo, SP, Brazil) on the entire tooth surface (Figure 8), starting with the enamel, applying slight pressure for 15 seconds, according to the manufacturer's instructions.
Light activation was carried out for the composite resin for 20 seconds, in lingual and buccal faces.
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The composite resin was polymerized by light activation (Optilight Max, Gnatus, Ribeirao Preto, SP, Brazil) for 20 seconds on the lingual and buccal surfaces (Figure 9).
Finally, the occlusion was checked, with articulating paper, and restoration was concluded.
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The concluded case may be observed in Figure 10.