I would consider this x-ray to have an ideal crown and abutment. This is really critical to the long term of the implants to prevent bone loss that is called peri-implantitis. This happens to be a custom abutment.
The abutment is the middle part between the implant in the bone and the crown in your mouth. It is the transition between the two. It is most often made in titanium or in zirconia.
Abutments can be be held in by screws or cement.
Too many abutments I see are poorly shaped because nobody really pays attention to this… The dentist just has the lab make a crown and abutment and perhaps they do not understand the biology and importance of this critical detail.
Note that the abutment is concave. This is not always possible but when it is it is really helpful for long-term prognosis. It takes special laboratory techniques along with my surgical shaping of the gums.
Thicker gums are always better than thinner gums but this particular design is helpful for both.
Just because the x-ray of your tooth may not look like this does not mean that it is bad! Dental implantology has evolved over the years. Dentistry will constantly be changing but the foundational science does not…. but often it needs to be questioned!
Ramsey A. Amin, D.D.S.
Diplomate of the American Board of Oral Implantology /Implant Dentistry
Fellow-American Academy of Implant Dentistry