Concave Sphere – Rhein 83

The concave sphere by Rhein 83 is a precision prosthetic component designed for use in implant and bar-retained overdenture systems. Engineered to work with spherical attachment mechanisms, the concave sphere provides a reliable interface between the attachment element and the retentive cap, helping ensure stable retention and smooth prosthesis insertion and removal.

Manufactured with high precision according to the standards of Rhein 83, it is used in dental laboratory workflows where a spherical retention system is required within a prosthetic framework. Its concave internal geometry allows it to securely engage with spherical attachment heads, contributing to predictable retention and improved functional performance in overdenture restorations.

To meet different prosthetic requirements, the concave sphere is available in three diameters: 2.5 mm, 2.2 mm, and 1.8 mm. These size options allow dental technicians to select the appropriate component according to the attachment system and the design of the prosthetic framework. The different diameters also help provide flexibility in laboratory fabrication and prosthetic planning.

This product is an important component in attachment-based overdenture systems, supporting accurate laboratory procedures and long-term prosthetic reliability.

After installation of Concave Sphere, the result will be ready to be used with its compatible Normal, Internundersized 2.2 or Micro Caps.

Key Features of Concave Sphere

Precision concave sphere for spherical attachment systems

Designed for implant and bar-retained overdenture prosthetics

Available in three diameters: 2.5 mm, 2.2 mm, and 1.8 mm

Ensures reliable engagement with spherical attachment heads

Supports stable retention and smooth prosthesis insertion

This product offers dental laboratories a precise and versatile solution for incorporating spherical retention systems into implant-supported prosthetic frameworks.

Made in Italy, Rhein83