FAQ

No, there are no impacts on the body.

The magnetic force that generate the attractive force are in confined only within the magnetic circuit that is comprised of the magnet (magnetic assembly) and the keeper (magnetic stainless steel). In other words, the magnetic force hardly leak outside. The negligible leakage magnetic field value is 0.005 T (tesla) at the marginal gingiva, which is below the biosafety standard value in the U.S. (0.02 T).
In addition, magnetic fields generally regarded as a problem, are variable magnetic fields that fluctuate over time. In the case of the magnetic attachment, it can be said that there is no problem since it is a static magnetic field.

Yes, it does.
Example: For the magnetic assembly of MAGFIT DX, M, RKR, and IP, the top side with wings (flanges) is the denture side. For MAGFIT EX, the top side near the wing or the slit is the denture side.
If you are unsure about it, let the magnet structure stick to a keeper, etc., and check which surface is strongly attracted.

Yes, there are.
Example: For keepers of MAGFIT DX and M, the side with a circular depression in the center is the root surface side.
For MAGFIT EX, the side with the curved part and the smaller plane is the root surface side.

No, the size cannot be adjusted by processing such as cutting. Such adjustments could damage the welded parts of the magnetic assembly and make it unusable.

It is shared with MAGFIT DX. Please use the product for MAGFIT DX.

It is shared with MAGFIT DX. Please use the product for MAGFIT DX.

Please use it with the KB method (keeper bonding method and direct bonding method).
A keeper without a holder is not suitable for the cast joining method.

Since there are differences among individuals, please select the optimal size for the patient by using the size gauge for the accessory, etc.

Yes, it is fixed.
Since each product has a different size, please use the same magnetic assembly and keeper.
Example:
Combination of the DX400 magnet structure and the DX400 keeper ... YES
Combination of the DX400 magnet structure and the DX600 keeper ... NO

1. It is essential to provide sufficient relief during preparation of the denture base adjacent to the keeper.

2. The top surface of the abutment keeper should be as low as possible, approximately 2 mm beyond the height of the gingival as a rough indication.

The mitigation of lateral force that is a feature of the magnetic attachment is achieved by allowing the denture base to move slightly when a lateral force is applied to it. Therefore, if the denture base is in close contact with the keeper, the rotational tolerance that is an advantage to dope and cushion types cannot be exhibited. In addition, increasing the height of the abutment tooth is the same as the state of fixing the denture base to the implant with a telescopic crown, and there may be a possibility that harmful lateral force could act greatly on it on the contrary.

* Excerpt from “Implant Dentistry with New Generation Magnetic Attachments” written and edited by Yoshinobu Maeda and A.D. Waimslay (published by Quintessence Publishing Co., Ltd. in October 10, 2005)

Keepers for implants (MAGFIT IP keepers) are parts that are screwed directly onto fixtures. Therefore, especially if the handling method is erroneous, the keeper is likely to loosen. Care must be taken to control the correct assembly state and tightening torque.
Please understand that the keeper may loosen easily, depending on the patient’s bite force, the site where it is used, and the case of its use.

2. Please note that if the tightening torque is greater than its proper value, or if somewhat a large torque is repeatedly applied even if it is within the proper value range, the screws may be broken.

Since a denture with the use of a magnetic attachment is susceptible to overdenture, occlusal pressure is concentrated on the abutment tooth that becomes a fulcrum and the resin base becomes thinner, making the denture more susceptible to fracture around the abutment tooth. Therefore, it is considered more desirable to improve the rigidity of the denture by using reinforcing wires and housings.
In addition, it is simultaneously necessary to consider the protection of the abutment tooth, and it is said that the denture must be designed so that the lateral force and the occlusal pressure are not concentrated on the abutment tooth.

Example: Metal cap

Example: Metal base/metal tooth

No, the size cannot be adjusted by processing such as cutting. Such adjustments could damage the welded parts of the magnetic assembly and make it unusable.

Please use it with the KB method (keeper bonding method and direct bonding method).
A keeper without a holder is not suitable for the cast joining method.

Since there are differences among individuals, please select the optimal size for the patient by using the size gauge for the accessory, etc.

The following main causes are conceivable:

No, there are no impacts on the body.

The magnetic force that generate the attractive force are in confined only within the magnetic circuit that is comprised of the magnet (magnetic assembly) and the keeper (magnetic stainless steel). In other words, the magnetic force hardly leak outside. The negligible leakage magnetic field value is 0.005 T (tesla) at the marginal gingiva, which is below the biosafety standard value in the U.S. (0.02 T).
In addition, magnetic fields generally regarded as a problem, are variable magnetic fields that fluctuate over time. In the case of the magnetic attachment, it can be said that there is no problem since it is a static magnetic field.

The image is disrupted in an area about the size of a golf ball centered on the keeper. As a result, there may be an impact depending in the site of the diagnosis, such as when imaging the oral cavity.

The keeper itself is not magnetic, but it reacts to the MRI magnetic field and disrupts the image.
The scope of the disruption is an area about the size of a golf ball centered on the keeper, and it is believed that there is no effect on the major part of the brain.
In cases where removal is necessary, just the keeper can be removed by making a slit on the keeper part.
Please explain that if a patient undergoes MRI diagnosis, the denture should be removed in advance, and upon entering the examination room, the patient should submit the MAGFIT card attached to the product to the radiologist in advance.

Keepers for implants (MAGFIT IP keepers) are parts that are screwed directly onto fixtures. Therefore, especially if the handling method is erroneous, the keeper is likely to loosen. Care must be taken to control the correct assembly state and tightening torque.
Please understand that the keeper may loosen easily, depending on the patient’s bite force, the site where it is used, and the case of its use.

2. Please note that if the tightening torque is greater than its proper value, or if somewhat a large torque is repeatedly applied even if it is within the proper value range, the screws may be broken.

Since a denture with the use of a magnetic attachment is susceptible to overdenture, occlusal pressure is concentrated on the abutment tooth that becomes a fulcrum and the resin base becomes thinner, making the denture more susceptible to fracture around the abutment tooth. Therefore, it is considered more desirable to improve the rigidity of the denture by using reinforcing wires and housings.
In addition, it is simultaneously necessary to consider the protection of the abutment tooth, and it is said that the denture must be designed so that the lateral force and the occlusal pressure are not concentrated on the abutment tooth.

Example: Metal cap

Example: Metal base/metal tooth

CT imaging is an imaging method that uses radiation. It does not affect magnetic force.
However, MRI imaging uses a strong magnetic field, which causes a decrease in magnetic force. Dentures with magnetic assembly must be removed outside the examination room (where there are effects of magnetic fields) in advance, and examination must be conducted without bringing it into the examination room.

There are no impacts during normal insertion. However, please avoid bringing the magnetic assembly closer to heart pacer such as putting the denture into the breast pocket.

No incidents of response have not yet been confirmed, but it cannot be totally said that they will not be responsive in the future due to improvements in the detector’s sensitivity and performance. In that case, please kindly give explanation with a MAGFIT card.

Please use a commercially available cleaning agent that can also be used for metals.

(1) Make sure that the adsorption surfaces of the magnetic assembly and the keeper are in close contact with each other.
The adsorption surface cannot adhere and the original attractive force cannot be gained, if there is foreign matter (for example, resin, cement burrs, food residue, etc.) on the adsorption surface.
The point to note is that the adsorption surface should not be made sagging or uneven when scraping off resin burrs, etc. adhering to the adsorption surface.

(2) Check the denture for oscillation.
There is a risk that the adsorption surfaces would not be able to adhere to each other due to the oscillation of the denture or the movement of the abutment tooth, including the involution of the residual ridge due to periodontal disease, etc.
Please be sure to maintain the proper positional relationship so that the adsorption surface is in close contact through regular denture maintenance (rebasing, reattachment of the magnetic assembly, etc.).

Please check with your dental clinic.

Please purchase it at a dealer that handles MAGFIT, mail order companies, etc. If you have any questions, please send the email.