Materials Dental Implant (9 Small F45)

Front 1

-medical Device that is Surgically placed directly into alveolar Bone

- SCT

-Main Components

-Parts

-portion that is Visible Above Gingival level SCT w retains or supports

-Part is submerged in alveolar bone...SCT

Back 1

-Dental Implant

- abutment

-Fixture

1)Crown

2)Screw

3)Abutment

4)Fixture

-Abutment... Prosthesis

-Root of Implant

Front 2

-2 Possible Scenarios when Implant placed into alveolar Bone

-Which Scenarios is Unfavorable

-Most Favorable outcome of dental Implant

Back 2

-1st : Formation of CT between Implant w Bone (Fibrous encapsulation)

-2nd : May cause Implant to be loosened and dislodged w Leading to Implant Failure

2nd

-Osseointegration

Front 3

- Direct structural and functional connection between Bone w Implant Surface

- SCT

- distance

-Ex for Metal with Bone

-is there intervening

Back 3

-Osseointegration

-between 10-20 nm

-Ti

-No

Front 4

Occ of continuity between Implant w Bone

-SCT

-is there intervening space

- Ex

Back 4

-Bio integration

-No

-Ceramic Implant materials (Bioactive)

Front 5

Essay

Keys to successful Implant Osseointegration (6)

Back 5

- Bio compatibility

نذاكر بايو الاول

- Non contaminated Surface

مش عايزين وساخة

-Implant Surface Treatment

عايزين علاج

-Use of atraumatic insertion tech (Low heat generation)

الجديد في جديد من غير حرقان

-Close approximation of Implant Surface to Bone

قرب قرب

- Delayed Implant Loading

براحة براحة

Front 6

-GR Implant Surface Treatment

- Other name of Delayed Implant Loading w GR

Back 6

- To Enhance Biological tissue response (BTR جدعنة مني)

-Prosthesis placement... To give sufficient time for Osseointegration to occ

Front 7

Essay

Possible Causes of Implant Failure (7)

Back 7

- Early Osseointegration

كل تأخيرة و فيها خيرة

- Bacterial infection

مرض معدي

-Surgical trauma

فين الجديد ياسطا

-Micromovement occ

بتتحرك ليه زي الحرامية

- improper surgical placement

مكان مش مكانه

- Metal Fatigue

انا فرهدت

- Inadequate quality w quantity of Bone

قيمة مقابل تمن

Front 8

GR insufficient Early Osseointegration

Back 8

Due to premature overloading

Front 9

Ideal Req

1) Bulk Prop :

A. E :

- E Compared to bone Must be selected GR

B. Tensile w Compressive w shear strength :

- Should have high GR

C. YS w Fatigue Strength :

-should have high GR

D. Ductility

- Acc to ADA, Minimum ductility of ?? % is req for dental Implant

-GR in Implant is necessary

E. Hardness w Toughness

-High hardness eff on Implant wear

-High Toughness Action

2) Surface Prop :

a. S.E

- Must be high or low

-MCQ determines wettability by

-Which cells shows ⬆️ Adhesion on Clean Implant Surface

-also aff

b. Surface Roughness

-Roughness eff on SA

3)Biocompatibility :

- Depends on

Back 9

1)

A.

-To give more proper stress distribution and to dec relative movement at interface

نقلل الحركة عشان التوتر

B.

-To prevent fractures and improve functional stability

C.

-To prevent fracture under cyclic Loading

D.

- 8%

- for contouring and shaping of Implant

E.

- ⬇️ wear of Implant

-prevents fracture of Implant

2)

a.

- High

-Wetting fluid (blood)

-Osteoblasts

-Adsorption of Ptn

b.

- ⬆️

3)

-Corrosion Resistance and cytotoxicity of Corrosion products

Front 10

GR

Implant Bio material should be Corrosion Resistant

Back 10

Bec Corrosion can result in :

- Surface roughening

-Weakening of Restoration

احنا ضعاف

-Release of elements from Metal Or Alloy

نطرد الناس

-Toxic reactions

نسمهم

Front 11

-Dental Implant Materials w Ex

Back 11

-Metal w Alloys... Ti

-Ceramics... Zirconia

-Polymers w Composities... PEEK

Front 12

Ti

- E

-strength

-Inert or tolerant or compatibile

- magentic or non

- Corrosion Resistance Yes or No

- wear and abrasion resistance high or low

- in abscence of interfacial motion or adverse environmental conditions, what action of this passivated (Oxi) Surface condition

-when scratched or abraded so

- High or low mp

- posseses?? Structure (when)

- Pure Ti (CpTi) class into how many grades w differ in w which grade has Most this differ

- GR : Mech diff that exist between diff grades of CpTi is 1ry

Back 12

-Acceptable

-⬆️

-inert

-non

-Yes

-low

-⬇️ biocorrosion phenomena

-re passivate in vivo

- High

- Hexagonal closely packed HCP a (up to 882.5 C)

-Body centered cubic BCC B (Above 882.5 C)

-4 grades... O2 Content... Grade 4

-Bec of Contaminants that present in minute quantities

الاكل اللي بيجيب النمل

Front 13

Ti Alloys

-Forms of it w which is commonly used for Fabrication of dental Implants w MCQ F45555 its Symbol is w heat treatment for it eff on Strength

- Theses phases originate when Pure Ti mixed with

-Alpha phase stabilizer element is w eff on Strength w density

- Beta phase stabilizer element

-have low or High density w Strong or Weak w Highly or Low resistant to fatigue and Corrosion

-Which is more stiffer :Ti Alloy or Bone

- Low or High E is desirable w GR

- GR Vanadium Free a+b alloys have developed as Implant

-E of B higher or A+B

Green Box

- MCQ Ti Implants are considered w may cause

-MCQ GR considered ethetic concerns

Back 13

- a w B w a-b... a-b combination alloy.. Ti-6Al-4V... ⬆️

-Al w Vanadium

-Al... ⬆️.. ⬇️

-Vanadium

-low.. Strong... Highly

-Ti Alloy

-Low.. As it gives more Favorable stress distribution at interface

-Bec of Toxicity concerns with Vanadium

-A+B

-Au standard... Metal HSN w Stress shielding effect

-Due to Gray color of Ti

Front 14

Zirconia

-Alternative Implant material to

- can be Manufactured by w which is additive w which is subtractive مطروح

-class w consists of or similar to

- Adv

- Dis

- Green Box MCQ GR Limitations include Lack of long Term studies w doubts of long Term stability

Back 14

-Ti w Ti Alloys

-3D printing (additive)

-Milling (subtractive)

افتكر الكونترا

-one piece (consists of Implant w abutment)

-two piece (similar to Traditional)

- Excellent Osseointegration

-Biocompatibility

-Superior Strength w Fracture Resistance

-Very high E

- Complex Manufacturing leading to ⬆️ Cost

-Presence of inherent flaws

العمر يأثر بقي عقبال ما يبقي زي عمه الTi

-Due to fracture and Aging susceptibility

Front 15

GR.. Presence of Inherent flaws

GR.. Inherent Flaws considered disadv

Back 15

Due to brittleness

May lead to Catastrophic failure

Front 16

PEEK

-ABBREV

-Type of crystalline

-linear or Circular

-Thermoset or Thermoplastic

- used for which app

-Adv

-Dis

-Green Box MCQ : adding of what modify mech w Bio Prop of PEEK

Back 16

-Polyether ether keton

-semi

انت نصي التاني

-linear

-Thermoplastic

المهندسين بيكملوا بيك

- engineering applications

-E is close to Bone اهم واحد

-Biocompatibility

-Good Chemical w Fatigue w wear resistance

-Bioinert (do not Promote cell Adhesion (Osseointegration))

- Complex Manufacturing leading to ⬆️ Cost

-Radiolucent

-C fibers

-Bioactive glass

Front 17

Surface modification tech

-GR Essay EXAM TTT of Surface is important

-mech ex

-Chemical ex

-Physical ex

- All of them eff on SA w by

Back 17

-⬆️ Clincial performance

-Bone Healing acc ➕

-Bone growth stimulation ➕

-Enhance BTR

- Air abrasion (Sandblasting)

-Alkalization

- Plasma spraying

-⬆️...

-Additive : Alkalization

- subtractive : Anodization and Air Abrasion

Front 18

تجميعة للخواص من العبدلله

1)Ti

2)Zi

3)PEEK

- E

- Strength

-Wear Resistance

-Biocompatibility Is in

-Bioinert is ❌ in

-Complex Manufacturing is ❌ in

-Inherent Flaws is ❌ w present in

-Radiolucent is ❌ in

-Osseointegration is ❌ w not promoted in

-Excellent Osseointegration is in

-Which is semi crystalline

-Which is Alternative to Ti

-Which is used for engineering app

-PEEK is Thermoplastic or Thermoset

Back 18

All

-✅ Ti

-❌Zi (Very high)

-✅PEEK

1w 2

-✅Ti (⬆️)

-✅Zi (Superior )

1 w 3

-❌Ti (⬇️)

-✅PEEK(⬆️)

2 w 3

-Zi

-PEEK

1 w 3

-Ti

-PEEK

2 w 3

-Zi

-PEEK

2

-Zi

3

-PEEK

3

-PEEK

2

-Zi

3

-PEEK

انت نصي التاني

2

-Zi

3

-PEEK

المهندسين بيكملوا بيك

-Plastic