FG SHOFU BROWNIE POLISHING
This technique applies to all restorations. Final polish is attained with a FG Shofu brownie point used wet at low rpms with light touch. Compared to rival systems, this approach has the following advantages :
- Wet-polishing reduces the potential of overheating resin, unlike dry polishing tips.
- Wet polishing with a fiber- optic handpiece reveals highlights, helping to identify the shape of the shaped surface as it is developing.
- Wet polishing reduces particulate dispersal into the operatory airspace, mitigating exposure for operator, staff, and patient to resin allergens and unpleasant smells.
- Voids or marginal discrepancies trap a brown residue, highlighting their existence for consistent correction.
- Class V polishing. A new tip is delicate and small at its tip and will polish the surface of Class V restorations right to the gingival margin, if the tissue is retracted by an instrument such as a PFIG4/5..Therefore an extensively-restored surface can be polished entirely from the gingival margin to the occlusal surface without changing armamentarium, by simply sweeping in a mesial-to-distal arc and moving up the surface towards the occlusal. This saves time as compared to the need to change polishing methods and finger rests, or, as in discs, changing grits and switching sides of the disc and/or direction of rotation.
- A buccal surface polished this way retains faceting which is more realistic than a surface that has been disced, this faceting creates a play of light more comparable to natural tooth form, drawing less attention to the eye as a discontinuity or imposition on the beauty of the buccal corridor.
- Class I/II Polishing: A used tip develops a rounded end that approximates the size and form of the 7406. This rounded tip fits into anatomy shaped by the 7406/7404 and completes occlusal shaping into a softly rounded anatomy that is pleasant to the tongue and does not trap food.
- The rounded continuity of the occlusal surfaces is attractive, resembling natural tooth structure better than devices such as the Raptor finishing burs (Kerr), which finish the surface to flat planes intersecting into sharp points, which invite stress concentration.
- The flat sides of the Shofu point shape flat surfaces into perfect marginal conformity, with easy access to all planes and the ability to fluidly and rapidly shape large convexities, such as a restored lingual surface on a MODL, without awkward and tiring ergonomics of the hand.
- The importance of lightness of touch. This method is bi-modal; press lightly, the point only polishes. Press more firmly and it removes resin.
- It smooths enamel but not aggressively, and, to a clinically acceptable finish without a staged polishing system involving different grits.
- Practice management convenience: It polishes metals and to some extent, ceramics. This versatility requires fewer polishing items to stock in the office.