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Our Products

From simple direct root retained systems to the most complex hybrid and fixed bridge conversions, Rhein83 USA offers a comprehensive assortment of dental attachments best suited for your patients’ long-term oral health needs.

 

Our corporate headquarters and manufacturing facilities located in Bologna, Italy has for over 40 years designed and produced through its research and development department in cooperation with some of the most prestigious Italian Universities bring you a wide-ranging product line for removable and now fixed prosthetic solutions.


Simply stated, the OT Bridge System with thanks to the internal blind thread of OT Equator, allows the dental team repeatable and reliable protocols for converting existing implant-supported overdentures or direct immediate load treatment plans into fixed prosthetic dentistry.


As you look through our easy to navigate home page, you will discover products, a price list, a full catalog of images with step-by-step procedures, documented clinical articles, technical videos, and pre-recorded webinar programs for dentists and dental laboratories all within a few simple clicks.


Please take a few minutes to explore our site and the world of Rhein83 attachments.

OT Bridge

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OT Equator

For Implants

With a low vertical profile of 2.1 mm and a diameter of 4.4 mm, the OT Equator is the smallest attachment system on the market. This system offers multiple solutions for overdenture treatment planning when vertical space limitations are a consideration.

Available in two versions, castable and prefabricated titanium abutments which are compatible with any implant brand on the market and manufactured with cuff heights from .5 mm to 7 mm. Female caps are retained by means of stainless steel housing ranging in four levels of retention, making it easy to process at the dental laboratory or chairside in the dental office.

The unique design and exceptionally low 2.1 mm profile of the OT Equator 4-in-1 system provides exceptional stability and superior retention when compared with other attachment systems. Due to its lower radius, OT Equator is indicated to correct divergence up to 28 degrees between implants without affecting the functionality of the nylon cap. A complete line of OT Equator accessories and tools are also available.

ATTENTION: Where implant divergence exceeds the maximum 28 degrees, Sphero Block are recommended case plan options. Impants exceeding 30 degrees divergence Equator Smart Box housings are recommended treatment plan options 

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OT Equator For Implants
OT Equator SmartBox

This newly innovative interior design of the OT Equator standard stainless-steel housing offers multiple clinical advantages for a low-profile passive path of insertion when divergent or flared implants are presented.


The Equator Smart Box is engineered with a rotating Titanium inner liner providing a durable metal-to-metal core. Once activated, the system allows up to 50 degrees angulation correction between two implants, without loss of retention.


This is achieved thanks to the system's highly elastic assortment of color-coded female retentive caps. Smart Box Housings can be purchased individually and are available in a Smart Box cap assortment kit.


Equator impression copings, laboratory analogs, and tools can be found in our Parts - Price List. Access  the price list by clicking the button below

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Smart Box
CAD CAM Line

For Threaded Equator

​With its 2.1 mm vertical height and 4.4 mm width the new OT Equator from Rhein83 USA offers the lowest profile and least overall dimensions of any overdenture bar attachment system on the market. Manufactured with a standard 2 mm threaded base, the OT Equator is indicated for CAD/CAM milled bars or in lab tap and thread applications. The titanium nitrate finish gives the attachment a smooth 1600 Vickers hardness, extending the life expectancy of the male and elastic female components.

 

Nylon caps are available in 4 levels of retention and easily maintained by the dental office. 

Black processing caps, stainless steel housings, impression copings, laboratory analogs and tools are also available.

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OT Equator For CAD/CAM Bars
OT Equator

With Threaded Sleeve

The low profile OT Equator attachment for bar connections is manufactured with a 1.6 mm thread, 2 sided titanium bonding sleeve, and a base spacer. This new system offers laboratories two cost effective options for placing the attachment on CAD/CAM milled or cast bar overdenture connections. The OT Equator is the smallest attachment in it's classification. Dimensions are 2.1 mm high and 4.4 mm wide with cap in place.Technicians can select between screwing the threaded OT Equator directly into a milled site, or use the base spacer and bonding sleeve with traditional casting techniques which eliminates the need for drilling and tapping. Once the bar is cast, the OT Equator and sleeve are screwed together and bonded directly into the attachment location.

 

The OT Equator kit comes complete with 2 titanium nitrate coated attachments, 2 titanium bonding sleeves, 2 base spacers, an assortment of caps and 2 stainless steel housings.

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OT Equator with Threaded Sleeve
OT Equator

Castable

Rhein83USA introduces OT Equator, the newest line of low profile castable, and direct implant overdenture attachments. With a low vertical profile of 2.1 mm and a diameter of 4.4 mm, OT Equator is the smallest attachment system on the market. This system offers multiple solutions for overdenture treatment planning when vertical space limitations are a consideration. Available in two versions, castable and prefabricated titanium abutments which are compatible with any implant brand on the market and manufactured with cuff heights from .5 mm to 7 mm. Female caps are retained by means of a stainless steel housing ranging in four levels of retention, making it easy to process at the dental laboratory or chairside in the dental office. A complete line of OT Equator accessories and tools are also available.

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OT Equator Castable
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The OT Equator Pivot is a low-profile attachment that allows its usage even in the presence of little space. Made with Titanium with TiN treatment that increases the hardness up to 1600 Vickers. Pins of 7-9-10mm to be used in various lengths of the root canals. They can also be used in divergent roots thanks to the “Smartbox” housing that corrects up to 50 ° of divergence on two fixtures. Standard Equator caps can be used for Equator Pivot. 

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OT Equator Pivot​
New OT Equator Seeger

The purpose of the OT Equator "Seeger System" is to create a passive connection for implant-supported bars. The elastic Seeger will correct all imperfections created by the chairside impression technique or laboratory casting process. This reduces the risk of the implant bar not seating passively.

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OT Equator Elastic Seeger
Sphero Flex

Sphero Flex Implant Abutments are available for ALL narrow body implant systems.

The Sphero Flex implant abutments for overdenture attachments are compatible with any implant system currently on the market. The Sphero Flex swivel ball comes with a diameter of 2.5 mm and is flexible to 7.5 in any direction. Sphero Flex has been designed to correct angulation problems up to 43° between two implant abutments.

This attachment is titanium nitrate coated and has a Vickers surface hardness of 1600. The female component of the attachment is a nylon cap that comes in a variety of colors and snaps over the ball to help prevent wear and increase retention.

Sphero Block

Sphero Block Implant Abutments are available for ALL narrow body implant systems.

The Sphero Block implant abutment for overdenture attachments is compatible with any implant system currently on the market. Sphero Block is a stationary ball implant attachment that comes in 2.5 mm and 1.8 mm diameters. It has been designed to correct angulation issues up to 28° between 2 implant abutments.

This attachment is titanium nitrate coated and has a Vickers surface hardness of 1600. The female component of the attachment is a nylon cap that comes in a variety of colors and snaps over the ball to help prevent wear and increase retention.

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Sphero Flex
Sphero Block
Cuff Height Measurer

To determine the tissue height above the implant and eliminate mistakes when choosing the correct attachment, the Cuff Height Measuring Tool is used.

The Cuff Height Measuring Tool from Rhein83 USA determines the exact tissue height requirement for any implant brand with an internal or external connection. Easy to read, the color-coded millimeter measurement tool accurately measures tissue height from 0.5 - 7mm. The kit contains one cuff height slider gauge, one cuff height fixed rod gauge, one silicon ring dispenser and 20 silicon rings.

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Cuff Height Measuring Tool

Custom Fit Abutment Services

Rhein83USA's custom attachment abutment design service is ideal for matching and reconstructing implant cases when there is little or no documentation identifying the existing implant fixture. This unique service enables the laboratory or dentist to ship the model or any part of the connection ie; healing cap etc. to the Rhein83 facility in Italy. There, the parts are scanned and reproduced to any size diameter with cuff heights from 1 mm to 7 mm using CAD/CAM technology. The implant attachment is milled, creating a perfect match between the new fabricated implant attachment and the original implant thread. Turn around time is 8 to 10 working days.

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Cutom Fit Abutment Services
CAD CAM Line

Threaded Sphere for Bonding

The Single Threaded Sphere attachment for bar connections is manufactured with a 1.6 mm thread, 2 sided titanium bonding sleeve and a base spacer. This new system offers laboratories two cost-effective options for placing the attachment on CAD/CAM milled or cast bar overdenture connections.

Technicians can select between screwing the Single-Threaded Sphere directly into a milled site or use the base spacer and bonding sleeve with traditional casting techniques which eliminate the need for drilling and tapping. Once the bar is cast, the Single-Threaded Sphere and sleeve are screwed together and bonded directly into the attachment location.

The Single Threaded Sphere kit comes complete with 2 titanium nitrate coated attachments, 2 titanium bonding sleeves, 2 base spacers, an assortment of caps, and 2 stainless steel housings.

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Threaded Spher for Bondin
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Pivot Flex

The Pivot Flex line of titanium posts was developed as an economical solution for direct "in root" supported overdentures. The self-aligning Pivot Flex post features a rotating ball with a 2.5 mm diameter and is indicated for divergent roots.

When the posts are used with directional rings to align retentive caps before the resin curing stage, the insertion of the denture is easy and trauma-free.

There are five levels of retentive caps, including extra resilient caps for precarious root situations. The levels of retention are identified by different colored caps.

Pivot Block

The Pivot Block line of milled titanium posts has a stationary ball and can be used for a temporary or as a permanent solution. The Pivot Block titanium posts are available in 2.5 mm and 1.8 mm sphere diameters. The Rhein83 elastic caps ensure optimal retention and function while minimizing wear.

There are five levels of retentive caps, including extra resilient caps for precarious root situation. The levels of retention are identified by different colored caps.

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Pivot Flex
Pivot Block
Broken Screw Extractor Kit Logo

A screw that breaks inside of an implant does not occur often. When it does, it poses a serious problem. With the Rhein83 Broken Screw Extractor Kit, it is possible to remove a broken screw from an implant if it has not been bonded or damaged during previous attempts to remove it.

The extractor kit includes two type of burs; a claw reamer bur and a reverse cutting bur. In addition, the kit includes manual and deep centering devices to hold the burs in place during the procedure. In 90% of cases, the broken screw can be removed easily with the claw reamer bur. However if the broken screw is frozen in place, the reverse cutting bur must be used.

To process your order, download and complete Broken Extractor Order Form >

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Brocken Screw Extractor Kit
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For existing cases with worn spherical attachments which no longer provide adequate retention, the DR8 Undersized Cap can be used in the early stages of wear of the male component. This elastic cap offers an inner dimension of 1.7 mm and 2.2 mm which is smaller than Rhein83 normal and micro size caps and can be used with standard Rhein83 stainless steel housings.

When ball attachments show excessive wear, the Concave Reconstructive Spheres are recommended as the best long term restorative option. The Concave Reconstructive Spheres restore the worn male to it's original size of 1.8mm, 2.2 mm or 2.5 mm diameter. Concave Reconstructive Spheres are manufactured with a Titanium Nitrite coating and are rated over 1600 Vickers Hardness.

The chairside procedure for using the reconstructive spheres is fast, easy and provides an economical alternative to replacing the old restoration.

DR8 Undersized Caps are available in 3 levels of retention for normal and 2 levels of retention for the micro size.

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Concave Reconstructive Sphere
SOLID RECONSTRUCTIVE SPHERE LOGO

Dental attachments, like most other mechanisms, are subject to wear and tear. Rhein83 USA produces spheres for restoring worn ball attachments which restore and stabilize the prosthesis in a single appointment. Reconstructive spheres are bonded over the worn ball restoring the attachment to its original size.

The Solid Reconstructive Spheres can be bonded to the inside of hollow attachments or those with a female ring such as ERA and CEKA.

Reconstructive Spheres can be used to repair various attachments available on the market. These attachments can be found in many types of prostheses including overdentures, implants, roots, and frameworks. If worn or broken, they cannot be repaired easily.

The Solid Reconstructive Spheres offer a fast and easy cost-effective alternative, transforming a female ring attachment into a male Micro OT Cap attachment. This repair can be completed chairside in a single appointment.

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Solid Reconstructive Sphere
OT Cem Logo

OT CEM, Shade A3 has been designed for permanent bonding attachments directly chairside or in the dental laboratory. The material is a self and photo-curing cement for metal-to-metal bonding of attachments for prosthetic implants and restorative solutions.

This high-strength composite filled duel cure radiopaque has a working time in the self-curing mode of 2 minutes from the start of mixing and a complete self-curing time of 4 minutes. Light curing mode is 20 seconds.

OT CEM is recommended for bonding Reconstructive Concave Spheres, Solid Spheres, and Titanium Sleeves for Threaded Equator, Normal and Micro ball attachments.

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OT CEM
OT Strategy Logo

OT Strategy is a vertical micro-sized 1.8 mm castable sphere that is placed distally on abutments for removable partials or utilized with implant bar combination case design. The male component is designed with an additional support strut located under the sphere, increasing strength and preventing rotation of the female cap during paralleling. The optional Steady, when connected to OT Strategy, provides lateral stability without any additional milling.

OT Strategy caps are available for both duplication and fabrication with stainless-steel housing technique. Rhein83 USA caps are manufactured in an elastic material that increases the contact zone with the sphere, giving mechanical and friction retention, and are color-coded with five levels of retention. Tools for paralleling, inserting, and removing caps are available.

The Castable Steady is an optional, conical-shaped support intended for use in cases where milling is not performed.  Steady can be used with the OT Strategy Standard or Long base.

It is an object in line with the philosophy of the personalization of every single prosthesis and is used with both the OT Strategy bases; Standard or Long and offers various technical solutions.

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OT Strategy
OT Cap Distal Extension

OT Cap is a resilient distal extension attachment. It is indicated to be used with combined prostheses and removable partial dentures.For treatment plans that require a rigid substructure with milling and adequate counter attachments, OT Cap functions as a stabilizing retentive connector. In addition, for treatment plans which require resiliency, OT Cap provides a "Cushion Effect" similar to a shock absorber. This is achieved by the design of the sphere in conjunction with the elastic retentive caps.

The design of the sphere with a FLAT head in addition to the spherical inner surface of the elastic cap, permits vertical movement during mastication. Rhein83 female caps are manufactured out of a special nylon material that remains stable and continues to function in the oral cavity over long periods of time.

The OT Cap Tecno consists of a titanium sphere and ring that is incorporated into the nylon cap which has been machined with a tolerance that assures high precision. While fabricating the prosthesis, the Tecno titanium sphere is not exposed to any of the risks associated with the laboratory fabrication procedures and ceramic firing cycles.

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OT Cap Distal Extension
OT Veritcal Logo

The OT Vertical bi-cylindrical friction attachment is suitable for use with partial dentures and combination cases as well as bar connections. The cast metal quide pin is necessary to center, connect and balance the prosthesis during the final insertion. When milling or "cross-arch" stabilization are not possible, the guide pin along with the NEW "Steady" will provide lateral stability to the prosthesis. This ensures a longer life for the retentive clips.

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OT Vertical
OT Bar Multiuse

The OT Bar Multiuse is designed with a 4 point retentive system. This unique system provides superior retention and can be utilized for both rigid and resilient functionality. With its innovative two-sided design (Side A is rounded and Side B is flat), depending on the indication, either side can be used. If a resilient solution is required the bar is positioned with the flat side facing up or if a rigid solution is required then the bar is positioned with the round side facing up. OT Bar Multiuse can also be used as a connecting bar between canines in the anterior region.

OT Bar Multiuse and the cast housing are fabricated directly on the master model saving time by eliminating the need for duplication.

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OT Multiuse Bar
OT Unilateral

The OT Vertical bi-cylindrical friction attachment is suitable for use with partial dentures and combination cases as well as bar connections. The cast metal guide pin is necessary to center, connect and balance the prosthesis during the final insertion. When milling or "cross-arch" stabilization is not possible, the guide pin along with the NEW "Steady" will provide lateral stability to the prosthesis. This ensures a longer life for the retentive clips.

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OT Unilateral
OT Box Logo

A fracture is likely at the point where the overdenture attachments are inserted in a prosthesis fabricated entirely of resin. With a cast superstructure reinforcement, the denture will be less likely to fracture. Fast and simple, the OT Box bar components are used to fabricate the superstructure directly on the master model, eliminating duplication and saving time. A non-precious or chrome cobalt alloy is recommended for the best results.

It is recommended that all nylon caps are inserted into a stainless steel housing or cast reinforced frame. The stainless steel housing offers a considerable advantage when the cap has to be removed and replaced for routine maintenance or repositioned. Adjustments or repairs can be performed chairside quickly and easily.

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OT BOX
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