Diagnosis Before Implant Placement
Clinical and radiographic evaluations of the implant sites are essential to treatment planning. Implants need to have adequate bone volume for placement, and implant restorations require adequate clinical volume for placement of the missing teeth. Proximity to key anatomic structures may preclude implant placement.
The best initial radiograph for both edentulous and partially edentulous patients is the panoramic radiograph because it images both jaws in one image. However, panoramic radiographs can have significant distortion depending on patient positioning, anatomical contours of the jaws, and other technical consideration.
The advantages of the panoramic radiograph:
1. Both jaws are imaged on the both radiograph
2. Relatively inexpensive
1. They do not provide information for the depth of the anatomic structures
2. It is possible to see the height of the bone, but it is not useful for bone diagnostic for implant placement, because it is impossible to know the width, and for implant placement it is completely necessary to know the width. Sometimes you can see very high bone, but it has a knife end. In this case you have to search for the height of the bone where the width is enough for the implant placement.
3. They do not provide information on the quality of the bone.
Computed tomography (CT) and its computerized dental applications, such as DentaScan and SIMPLANT, can be advantageous to restorative dentists and implant surgeons. CT scans offer clinicians two distinct advantages over conventional radiographs: accurate three-dimensional analysis of bone volume and better visualization of bone architecture.
CT scans can aid clinicians in more accurate determination on the optimum number, distribution, dimensions and angulation of implants according to the volume and quality of bone.
Dr. Natalia Demianko
DDS / 2015