Implants - Lecture 4: Radiologic Assessment Options Flashcards
What are the 3 things imaging helps with pre-operatively?
Assessment
Design
Planning
What part of pre-operative?
Acquisition and display
Site assessment, limiting anatomy & pathology
Assessment
What part of pre-operative?
Prosthetic and surgical integration
Implant selection and prosthetic design
Design
What part of pre-operative?
Radiographic and clinical integration
Translation of plan to clinical environment
Planning
How much bone volume does an implant need in the anterior and posterior?
Anterior = 2mm
Posterior = 1.5mm
(on each side of the implant)
What are the 3 most important things to assess when “planning”?
- Bone volume
- Bone quality
- Pathology
What is the best and worst quality of bone?
Best = Type 2
Worst = Type 4 (thin cortical plate, sparse trabeculae)
What vital structures encroach on the residual alveolar ridge for the maxilla?
Sinus
Nasopalatine canal
What vital structures encroach on the residual alveolar ridge for the mandible?
Mental foramen
IAN canal
What are the 4 prosthetic space requirements to consider when looking at “design”?
Inter-coronal space
Oro-facial space
Inter-radicular space
Inter-occlusal space
Allow for soft tissue, abutment, metal, restorative material, +/- cement
Fixed inter-occlusal space
How much fixed inter-occlusal space is needed for the anterior and posterior?
Anterior = 10-12 mm
Posterior = 8-9 mm
Allow for soft tissue and adequate abutment/prosthetic thickness
Removable inter-occlusal space
How much removable inter-occlusal space is needed for the bar and attachment?
Bar = ≥ 15 mm (ideal is 15-17 mm)
Attachment = ≥ 7mm (ideal is 10-12 mm)
Used to assist in the preparation for and
the placement of implants. It dictates drilling position and angulation
Surgical guide
