**4.1. The air abrasion preparation protocol with Bio-Art microblaster on extracted teeth consisted of the following steps [19]**


The preparation and restoration of two extracted lower molars are shown: one with deep stained occlusal fissures (Figures 2–6) and the other one with fissural caries (Figures 7–11) [19].

**Figure 2.** Lower molar with deep, stained occlusal fissures.

**Figure 3.** Aspect after air abrasion.

**Figure 4.** Application of etching gel.

**Figure 5.** Application of adhesive.

Air Abrasion: Interdisciplinary Modern Technologies—Approach to Minimally Invasive Treatment of Dental Caries http://dx.doi.org/10.5772/65419 127

**Figure 6.** Restoration with Rx ColourFlow Orange.

**Figure 3.** Aspect after air abrasion.

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**Figure 4.** Application of etching gel.

**Figure 5.** Application of adhesive.

**Figure 7.** Lower molar with fissural caries.

**Figure 8.** Aspect after air abrasion.

**Figure 9.** Application of etching gel.

**Figure 10.** Application of adhesive.

**Figure 11.** Restoration with Rx ColourFlow Orange.
