40. Definition of the dentally originated cysts. Dental implants.

Question 1

1. Cyst
   a/ Definition of dentally originated cysts

Answer 1

1/ An epithelium lined sac, surrounded by a connective tissue wall. It is usually filled with fluid or soft material.
2/ A cyst is a tumor-like formation, that can originate from a a developmental disorder, or an inflammatory process.
3/ It is actually not a tumor, because its growth is not due to cell proliferation (it expands, does not infiltrate).

Question 2

1. Cyst
   b/ What are location of cysts?

Answer 2

Treatment is determined per cyst location
1/ radicular (periapical)
2/ follicular cyst
3/ apical periodontal
4/ keratocyst
5/ Residual

Question 3

1/ Cyst
c/ Characteristics of radicular cyst

Answer 3

• Endodontic
• most common
• most common
• caused by inflammation of periodontal tissue

Question 4

1/ Cyst
d/ Characteristics of follicular cyst

Answer 4

1/ lower wisdom or permanent upper canines around the crown of unerupted tooth
2/ rapid expansion
3/ surgical

Question 5

1/ Cyst
d/ Characteristics of follicular cyst

Answer 5

1/ lower wisdom or permanent upper canines around the crown of unerupted tooth
2/ rapid expansion
3/ surgical

Question 6

1/ Cyst
e/ Characteristics of keratocyst

Answer 6

1/ odontogenic tumours
2/ posterior area of the mouth
3/ biopsy required
3/ surgical
4/ recall and monitoring required

Question 7

1/ Cyst
f/ Characteristics of residual cyst

Answer 7

Happen after associated tooth loss

Question 8

1/ Cyst
g/ Origins of the cyst

Answer 8

• developmental disorder
• inflammatory process

Question 9

1/ Cyst
h/ How does cyst appear in X-ray?

Answer 9

appears as dark area on X-ray with well-defined margins

Question 10

1/ Cyst
I/ treatment options for cysts

Answer 10

1/ drainage
2/ surgically removed
- if cyst is associated with an infected root canal, endodontic therapy is required

Question 11

1/ Cyst
j/ Symptoms of cysts

Answer 11

symptoms: gum swelling, displacement of teeth, pressure sensitivity, sore tooth, face numbness

Question 12

2. Dental implants
   a/ What is dental implantology?

Answer 12

1/ Oral / dental / implantology is a new interdisciplinary field of dentistry
2/ its aim is the prosthetic rehabilitation, but it also uses surgical, periodontal and orthodontic methods.

Question 13

2. Dental implants
   b/ What type of material can be used for implants

Answer 13

1/ Titanium (screw type)
2/ Zirconium oxide

Question 14

2. Dental implants
   c/ Principles of implant placement

Answer 14

Osseointegration: Direct contact between the implant and the osseous tissue

Question 15

2. Dental implants
   d/ What are implant requirements?

Answer 15

1/ Sterile
2/ Non-allergic
3/ Suitable for osseointegration material

Question 16

2. Dental implants
   e/ What are the 3 types of dental implants

Answer 16

1/ Endosteal
2/ Subperiosteal
3/ Transosteal

Question 17

2. Dental implants
   f/ Characteristics of endosteal implant

Answer 17

1/ Placed into jaw bone – safe and most common
2/ require healthy alveolar bone

Question 18

2. Dental implants
   g/ Characteristics of subperiosteal implant

Answer 18

1/ placed under the gum but not in the alveolar bone but on top of it
2/ Metal framework lies on top of the jawbone.
3/ Suitable for patients where there is not enough alveolar bone

Question 19

2. Dental implants
   h/ Characteristics of transosteal implant

Answer 19

1/ Passes through the jaw bone