Is a CT scan really necessary before an implant?

Yes, it is essential. A regular X-ray (panoramic) is two-dimensional and cannot show bone width or thickness. Only a 3D CT can confirm: 1) bone volume and density (whether placement is possible and grafting is needed), 2) the position of the lower jaw nerve canal (to prevent nerve damage), and 3) the location of the maxillary sinus in the upper jaw (to prevent sinus perforation). Placing implants without a CT raises the risk of complications such as nerve injury or sinus involvement, so Seoul Maeil Dental Hospital takes a CT before every implant surgery as a rule.