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BisCover™ LV – Low Viscosity, Maximum Versatility
Before the advent of BISCO’s breakthrough BisCover™ Liquid Polish technology in 2003, the category of resin glazing products had very limited capabilities. They were indicated for extraoral use only, for provisional restorations. Most contained methyl methacrylate and had a strong unpleasant odor. They could only be cured with a halogen light and most cured with an oxygen inhibition layer that needed to be removed.
BISCO was the first to offer a universal intraoral and extraoral brush-on aesthetic sealant and glaze, with no unpleasant odor and no oxygen-inhibited layer. Now with BisCover LV, the added benefits of low viscosity and LED light-curability make the versatility of this product practically limitless. Even as a growing number of imitation products join the market, many still have some degree of oxygen inhibition and cannot achieve BisCover LV’s thin, even layer that is smooth to the touch. In addition, few have the number and variety of indications that BisCover LV offers.
BisCover LV can be used intraorally for any direct composite restoration. A liquid-polishing glaze adds clinical benefits to direct restorations, resulting in lower roughness values than the use of the polishing discs or wheels alone.1 It may fill the structural microdefects and microfissures by capillary actions, which are formed during the insertion techniques and finishing/polishing procedures.1 The quick and easy application technique can drastically cut down on the time, mess and hassle of manually polishing these restorations. The high gloss that is achieved makes BisCover LV aesthetically desirable for use on anteriors. In the posterior, BisCover LV is beneficial as a surface sealant to help prevent staining and microbial attack. It can also be used on previously placed composite when extra luster is desired on an existing restoration and on resin-modified glass ionomers.
BisCover LV is ideal for sealing the entire surface of indirect composite restorations. (see SEM pictured below) It can be utilized on top of any characterization added to the occlusal surface for long-lasting effects. Due to its low film thickness, BisCover LV will not interfere with occlusion, necessitating adjustment. It can be applied before or after the restoration has been cemented in the mouth and the hard cure will leave the restoration with a finish that matches the natural dentition. It was scientifically demonstrated that the surface sealing provided by a resin glazing product reduces wear in the tooth-restoration interface for indirect restorations.2 Also, with low wear against toothbrush abrasion, the beautiful shine of the restoration will be sustained for a longer period of time.
A thin layer of BisCover LV achieves a smooth, unflawed finish on any indicated surface.
LEFT: Indirect Composite Veneer SEM
RIGHT: Proximal Enamel SEM
Provisionals & Appliances
In vivo and in vitro studies have been shown that a liquid-polish coating on provisional restorations (self-cured acrylic resins) reduce significantly early biofilm formation3, 4 and prevents protein adsorption. BisCover LV may be applied to all types of temporaries, including acrylic and bis-acrylic, and to processed acrylic appliances such as dentures, orthodontic appliances, and space maintainers. The simple procedure and smooth, stain-resistant finish make BisCover LV perfect for this application. It can be used prior to or after cementation of the temporary—apply, cure and then send the patients home! Their provisionals look attractive and appear permanent.
Not all liquid polishes are indicated for use on tooth structure. BisCover LV can be used (see SEM pictured above) on enamel both after bleaching and in orthodontic applications. While not many dental procedures can be performed on newly-whitened teeth, BisCover LV may be applied directly after bleaching to enhance their luster and overall result, and prevent future staining. In orthodontics, BisCover LV may be used prior to or after bracket placement to help protect the teeth against decalcifications and staining, and seal out food particles. Also, it has been demonstrated that when a protective liquid polish (BisCover) is applied to the tooth surface the liquid polish layer does not affect bond strength of brackets and the effect of contamination by blood or saliva is prevented.5,6 Placement also offers the additional advantageous effect related to reducing the prevalence of demineralization by 13% in patients in orthodontic treatment.7
With BisCover LV’s many benefits and unique and varied applications, it is a versatile tool to add to your practice.
Click to view this video demonstration to learn more about BisCover LV.
March 2008 BisDent Globe, Volume XII, Issue II
1. Sarac D, Sarac SY, Kulunk S, Ural C, Kulunk T. The effect of polishing techniques on the surface roughness and color change of composite resins. J Prosthet Dent 2006; 96:33-40.
2. Prakki A, Ribeiro IW, Cilli R, Mondelli RF. Assessing the tooth-restoration interface wear resistance of two cementation techniques: effect of a surface sealant. Oper Dent 2005; 30(6):739-46.
3. Davidi MP, Byeth N, Sterer N, Feuerstein O, Weiss EI. Effect of liquid-polish coating on in vivo biofilm accumulation on provisional restorations: Part 1. Quintessence Int 2007; 38(7):591-6.
4. Davidi MP, Byeth N, Weiss EI. Effect of liquid-polish coating on in vitro biofilm accumulation on provisional restorations: Part 2. Quintessence Int 2008; 39(1):45-9.
5. Sayinsu K, Isik F, Sezen S, Aydemir B. New protective polish effects on shear bond strength of brackets. Angle Orthod 2006: 76:306-9.
6. Sayinsu K, Isik F, Sezen S, Aydemir B. Effect of blood and saliva contamination on bond strength of brackets bonded with a protective liquid polish and a light-cured adhesive. Am J Orthod Dentofacial Orthop 2007; 131:391-4.
7. Banks PA, Richmond S. Enamel sealants: a clinical evaluation of their value during fixed appliance therapy. Eur J Orthod 1994; 16:19-25.
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