MS2 - Implantology Important points to remember

Question 1

What is the required distance between implant and natural tooth structure?

Answer 1

1.5mm

Question 2

How much distance is required between the top of the implant and top of the soft tissue?

Answer 2

4mm

Question 3

How deep should an implant be placed and why?

Answer 3

3-4mm → to avoid invading biologic width (SCAT)

(Dr Finn said 3mm, Dr Tulio said 4mm)

Question 4

What are the types of bone grafts available and where are they derived?

Answer 4

• Autologous graft → Host’s own tissue
• Allograft → Another human’s tissue
• Xenograft → derived from animal tissue (bovine, porcine, equine)
• Alloplast → synthetic inorganic material

Question 5

describe Siebert’s classification of edentulous space

Answer 5

Class I - Loss of B-L width

Class II - Loss of A-C height

Class III - Loss of B-L width and A-C height

Question 6

how much distance is required between implants?

Answer 6

3mm

Question 7

how much buccal bone is required around an implant?

Answer 7

2mm

Question 8

What type of implant connector is this?

Answer 8

External Connector

Question 9

What type of implant connector is this?

Answer 9

Internal Connector

Question 10

Which type of bone (D1-D4) is most ideal for implant placement and why?

Answer 10

D2 and D3 - adequate amount of cortical bone as well as cancellous bone for good stability and healing

Question 11

What are the general types of membranes available for GBR? (3)

Answer 11

• Natural polymer
• Synthetic Polymer
• Metal

Question 12

What are 2 important anatomical structures to always consider when planning for implants?

Answer 12

• IAN
• Maxillary sinus

Question 13

What diagnostic tools do you need when planning for implants?

Answer 13

• OPG and CBCT - radiographically assess amount of bone, features/quality of bone and relation to other teeth/structures
• Diagnostic Models - examine occlusion for aberrant tooth movement or over-eruption → diagnostic models good for demonstrating to the pt

Question 14

What do you need to do during/prior to implant placement if a composite defect is present in the area?

Answer 14

osseous or soft-tissue composite defect needs to be reconstructed during or prior to implant placement

Question 15

Describe how an anterior implant is positioned vs how a posterior implant is positioned and why.

Answer 15

Anterior → Anterior ridge of implant shoulder placed 1mm palatal to point of emergence of adjacent teeth -aims for 2mm thickness of buccal bone

Posterior → implant should be placed at the centre of the future restoration - allowing for 1.5mm bone thickness on buccal and palatal/lingual

Question 16

What are the 3 components in Bone Tissue Engineering?

Answer 16

• Scaffold
• Cells
• Biochemical factors