Device for placement in interdental resin fillings

An insert to place dental fillings on a plurality of teeth of a patient, the insert comprising:

• a guide sized and shaped to fit between a first tooth and a second tooth of the plurality of teeth;
• and
• an elongate body extending in a longitudinal direction, the elongate body comprising,
• a first projection on a first side of the guide, the first projection extending to a first convex edge, the first projection comprising a first concavely curved portion to shape a first filling on the first tooth with a first inflection located between the first concavely curved portion and the first convex edge,
• a second projection on a second side of the guide, the second projection extending to a second convex edge, the second projection comprising a second concavely curved portion to shape a second filling on the second tooth with a second inflection located between the second concavely curved portion and the second convex edge, and
• a gum engagement structure sized and shaped to engage with a gum of the patient, the gum engagement structure located on gum a facing side of the first projection and a gum facing side of the second projection, the gum facing side of the first projection comprising a first laterally curved convex portion and a first laterally curved concave recess, the first laterally curved concave recess located between the first laterally curved convex portion and the first edge, the gum facing side of the second projection comprising a second laterally curved convex portion and a second laterally curved concave recess, the second laterally curved concave recess located between the second laterally curved convex portion and the second edge.