Dental Sectional Contoured Matrix Bands M4 Kit Description Precision contoured sectional matrix bands designed for predictable proximal contacts, anatomical shaping, and subgingival cervical adaptation. The kit combines contoured bands with features that streamline placement, stabilization, and removal. Key benefits Restores anatomical tooth form: Contoured shape provides a pronounced curve to reproduce natural proximal anatomy and support proper marginal ridge formation. Subgingival adaptability: Bands are suitable for adapting below the cervical margin to handle restorations that extend subgingivally. Secure handling and placement: Protrusions with holes allow reliable clamping, simple placement, and straightforward removal. Improved handling and insertion: Increased band hardness helps maintain shape during placement and gives finer control. Durable ring component: Superelastic NiTi alloy ring body resists deformation and maintains consistent clamping force over repeated use. Reusable compatibility: Components are autoclavable for reuse according to practice protocols. Sizes and intended use 3.5 mm: Deciduous teeth and lowcrown preparations; suitable for pediatric and smallcrown restorations. 4.5 mm: Bicuspids and premolar restorations requiring precise proximal contouring. 5.5 mm: Standard molar restorations for typical occlusal and proximal anatomy. 6.5 mm: Molars with extended contours or larger cervical extensions. Contents Four sizes included 50 pieces per box Typical applications Class II proximal restorations on deciduous teeth, premolars, and molars where accurate contact and contour are required. Restorations that extend subgingivally at the cervical margin where tight adaptation and stabilization of the matrix are needed. Situations requiring reliable sectional ring support and quick removal, such as multisurface restorations or tight interproximal contacts. Materials and performance Contoured matrix bands with reinforced hardness for shape retention during placement. Superelastic NiTi alloy ring body designed for consistent clamping action and longterm dimensional stability. Protrusion holes on bands facilitate clamp engagement and retrieval. Compatibility and handling Designed for use with standard sectional matrix systems and compatible clamps and ring holders. Follow local sterilization protocols for reusable components. This kit provides a practical selection of sectional contoured matrix bands in four sizes plus ring performance features to support precise proximal restorations across pediatric and adult cases.