Directa Matrix Strips Straight (100-count) are high-quality, transparent polyester (Mylar) strips designed for the isolation and contouring of composite restorations. Unlike curved versions, these straight strips provide a versatile, multi-purpose solution for creating flat, smooth proximal walls in both anterior and posterior tooth preparations.
Key Features
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Superior Transparency: Made from clear, medical-grade polyester that allows for 100% light transmission, ensuring an efficient and complete polymerization of light-cure resins from all angles.
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High Tensile Strength: Engineered to resist tearing or stretching, allowing the clinician to pull the strip tightly around the tooth to adapt the composite to the desired margin.
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Ultra-Thin Profile: The slim design allows the strip to glide easily into even the tightest interproximal contacts without traumatizing the gingival papilla.
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Non-Stick Surface: Specifically treated to ensure that composite materials do not adhere to the strip, leaving a smooth, “glass-like” finish on the restoration that reduces finishing and polishing time.
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Versatile Application: While primarily used for anterior Class III and IV restorations, they are also useful for protecting adjacent teeth during etching and bonding procedures.
Clinical Indications
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Class III & IV Restorations: Serving as a temporary wall to contain and shape composite resin in anterior teeth.
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Anterior Composite Build-ups: Helping to define the proximal boundaries of incisors and canines.
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Isolation: Protecting neighboring teeth from phosphoric acid etch, primers, and adhesives during the bonding process.
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Minor Posterior Repairs: Can be used for small Class II composite repairs or as a barrier when specialized sectional matrices are not required.
