PMC8355976_01
Preoperative view of the lower incisors affected by AI type l.
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Intraoral clinical examination of the lower incisors revealed missing enamel in the incisal half and reduced enamel thickness in the cervical half of the teeth (Figure 1).
Preoperative panoramic radiographic view.
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Radiographic examination showed normal enamel radiopacity and normal contrast with the underlying dentin (Figure 2).
Edelweiss prefabricated composite veneers.
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Austria) (Figure 3) are available in four sizes (XS, S, M, and L) based on average tooth dimensions in the human population. A custom sizing guide is included in the system to select the veneer that best fits the patient (Figure 4).
Edelweiss Veneer size selection using the Edelweiss sizing guide.
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Austria) (Figure 3) are available in four sizes (XS, S, M, and L) based on average tooth dimensions in the human population. A custom sizing guide is included in the system to select the veneer that best fits the patient (Figure 4).
Internal adjustments to reduce the thickness of the veneer.
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USA, Rock Hill, SC, USA) to allow a more conservative tooth preparation (Figures 5 and 6). Using the same football shape diamond bur, the cervical margin of the veneer was finished to a knife-edge configuration for maximum tissue preservation in the gingival area where the enamel layer is thinner.
Final veneer thickness measured with a digital caliper.
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USA, Rock Hill, SC, USA) to allow a more conservative tooth preparation (Figures 5 and 6). Using the same football shape diamond bur, the cervical margin of the veneer was finished to a knife-edge configuration for maximum tissue preservation in the gingival area where the enamel layer is thinner.
Shade selection of the luting composite using Edelweiss custom shade guide.
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After veneer size selection, the next step was choosing the shade of the luting composite (Figure 7).
Veneer Bond application.
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After size and shade selection, the intaglio of the veneer was conditioned with a proprietary resin primer (Veneer Bond, Edelweiss Dentistry, Wolfurt; Austria) applied with a microbrush and light cured 20 seconds according to the manufacturer recommendations (Figure 8).
Tooth etching 35% H3PO4.
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Etchant, KerrHawe, Bioggio, Switzerland). Etching gel application started from enamel and after 15 seconds moved to dentin for another 15 seconds for 30 s (Figure 9) followed by water rinsing for 30 s and application of a single-step adhesive according to the manufacturer instructions (Scotchbond Universal, 3 M ESPE, Seefeld, Germany) (Figure 10).
Application of single-component adhesive.
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Etchant, KerrHawe, Bioggio, Switzerland). Etching gel application started from enamel and after 15 seconds moved to dentin for another 15 seconds for 30 s (Figure 9) followed by water rinsing for 30 s and application of a single-step adhesive according to the manufacturer instructions (Scotchbond Universal, 3 M ESPE, Seefeld, Germany) (Figure 10).
Veneer loaded with the selected composite shade.
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Veneer seated on the deserving tooth.
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Veneer light cured on the tooth.
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Then, the veneer was light cured 20 seconds from the lingual and 20 seconds from the buccal using a high-power (1.330 mW/cm2) curing light (Demi Plus, Kerr Corporation, Brea, CA USA) (Figure 13).
Finishing the margins with composite finishing discs.
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Interproximal finishing with composite paper finishing strip.
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