Discussions on Abutments

My office has been using the Ankylos Implant system fore the past three years. Recently we have experienced 5 abutment fractures in lower 1st molars.

When I placed the abutments I found that I had inadequate inter-arch space for an ideal fixed partial denture restoration.

My office is restoring a case using a new implant system that uses the conical, i.e. Cone-in-cone connection design.

Do you know if there is a system that allows you to mill a custom abutment for a dental implant fixture in the office?

I want to do a fixture level impression. Should I expect any complications because I did not place a trans-mucosal healing abutment?

Do all abutment screws eventually loosen and have to be re-tightened?

What I am planning now is to use only standard abutments and prepare them as though they were natural teeth. I hope to avoid using custom abutments as much as possible.

I plan to make final impressions at the abutment level and then insert the permanent bridges. In the past I made implant level impressions and then inserted the permanent abutments and bridges at the same time. Anything wrong with making abutment level impressions like I am planning?

I have not been able to capture clear impressions of the margins. I really do not want to remove the abutments and take a new implant level impression and make a second set of abutments.

The gingival has receded slightly and the metal abutment is showing. Also there has been a graying of the gingival tissue on the labial of the implant. I am considering options.

The literature seems to supports the view that the junction of the abutment and implant fixture is a potential source of infection and inflammation.

How do I contour the buccal of the temporary crown to prevent gingival recession?

What are dental labs doing about die relief on implant abutments?

At that visit I am planning on uncovering the implant fixtures and placing transmucosal healing abutments. How do I determine how long the Locator abutment should be?

I hand-tightened the abutment screw and then I torque it down to 35Ncm. I realized then that I had made 2 errors. A radiograph demonstrated that the abutment was not fully seated when I torque it to 35Ncm. Also I realized that I was only supposed to torque it to 20 Ncm.

I have inherited a patient with 6 Screw Vent dental implants. I need to remove the TSF abutments which I thought were only held in by abutment screws.

One of my patients came in for an abutment insertion and the conventional abutment screw that I attempted to insert was too narrow and just slipped down the screw channel.

I had to remove a crown cemented with zinc phosphate cement because it became loose. The crown was destroyed because I had to cut it off. The abutment was still stuck to the crown, as well as, the stabilizing screw.

Recently I noticed that some of the torque wrenches seem to be sticking and are possibly not opening up when they reach the desired torque level.

Last week I was screwing down the abutment screw when it got stuck. I am not sure what happened.

I have a patient with a broken abutment screw. The dental implant has an internal hex configuration and it is difficult to even visualize the broken screw head.

My periodontist says everything is good, but my general dentist says the angularity of the implants, especially of #19, is too much towards the lingual side.

When a dental implant manufacturer publishes guidelines for determining the final torque value for their abutment screw, does that apply to when the screw and implant threads are dry or wet?

The surgeon placed a dental implant in #8 position and the surgery and healing were uneventful. When I went to torque down the abutment, the patient felt a sharp pain.

But when I torqued down the abutment to 35Ncm, the patient experienced a sharp pain that radiated superiorly.