Implant Dentistry

Implant Dentistry Definitions

Implant: It is an integral component of the oral implant complex which also consists of supportive bone, interposed kerati- nized and mucosal oral soft tissues and prosthetic superstructure

Splint: Splint is an appliance used for maintaining or stabilizing mobile teeth to their functional position

Osseointegration: It can be defined as “The apparent direct attachment or connection of osseous tissue to an inert alloplastic material without intervening connective tissue”.

Read And Learn More: Prosthodontics Question And Answers

Implant Dentistry Important Notes

Implant Materials:

• Metals
  • Stainless steel
  • Gold
  • Titanium
  • Tantalum
• Zirconium
• Ceramics
• Calcium phosphate
• Bioactive and biodegradable ceramics
• Polymers

Bone Healing Events After Placement Of Implant:

Implant Dentistry Short Essays

Question 1. Splints.
Answer:

Definition Of Splints:

A splint is an appliance used for maintaining or stabilizing mobile teeth to their functional position

Functions Of Solints:

• Stabilize mobile teeth to improve patient comfort and provide stability
• Stabilize moderate to advanced tooth mobility
• Stabilize teeth in secondary occlusal trauma
• Stabilize teeth following acute trauma
• Prevent tipping or drifting of teeth
• Create adequate stability

Contraindications Of Solints:

• Presence of periodontal inflammation
• The presence of an insufficient number of non-mobile teeth
• Presence of inadequate oral hygiene
• Absence of prior occlusal adjustment

Question 2. Parts of implants.
Answer:

1. Implant Body:
   • Implants are the components that are placed within the bone during the first stage of surgery
   • Implant can be threaded or non-threaded
2. Healing Screw:
   • During the healing phase, this screw is placed on the superior surface of the body
   • Healing Screw Functions:
     • Facilitates the suturing of soft tissues
     • Prevents the growth of the tissue over the edge of the implant
3. Healing Cap:
   • They are dome-shaped screws placed over the sealing screw after the second stage of surgery
   • Length- 2-10 mm
   • Healing Cap Function:
     • Prevents overgrowth of tissues around the implant
4. Abutments:
   • Abutments resemble a prepared tooth
   • Provides retention to the prosthesis
5. Impression Posts:
   • Impression Posts facilitate the transfer of the intra-oral location to a similar position on the cast
6.  Laboratory Analogs:
   • Laboratory Analogs represent the body of the implant
   • Placed on the cast to fabricate an implant-supported prosthesis
7. Waxing Sleeves:
   • Designed to be attached to the body of the implant
8. Prosthesis Retaining Screws:
   • Penetrates the fixed restoration and secures it to the abutment

Question 3. Osseointegration/requirements for successful osseointegration.
Answer:

Osseointegration can be defined as “The apparent direct attachment or connection of osseous tissue to an inert alloplastic material without intervening connective tissue”.

Requirements Of Osseointegration:

1. Occlusal Load:
   • To develop a strong interface the implant should not be overloaded during its organization period During this period, the surgical area undergoes remodeling process
2. Biocompatibility:
   • The material used should be biocompatible for example, pure titanium
3. Implant Design:
   • Most conductive design for oseo-integration is cylindrical
4.  Implant Surface:
   • A smooth-surfaced implant is less prone to osseointegration than an implant with mild surface roughness.
5. Surgical Site:
   • Surgical Site should be healthy
6. Surgical Technique:
   • The site should be subjected to minimal trauma
7. Infection Control:
   • Infection especially from the periodontics should be avoided.

Question 4. Types of Implants.
Answer:

1. Depending On The Placement Within The Tissues:

• Epiosteal:
  • Epiosteal receives its primary bone support by resting on it
• Transosteal:
  • Transosteal penetrates both cortical plates
  • Transosteal possesses the entire thickness of the alveolar bone
• Endosteal:
  • Endosteal extends into the basal bone
  • Endosteal transects only one cortical bone
  • Endosteal is sub-classified into

2. Root Form:

• Used over a vertical column of bone

3. Plate Form:

• Used over a horizontal column of bone

4. Depending On The Material Used:

• Metallic implants
• Non-metallic implants

5. Depending On Their Reaction To Bone:

• Bio-active (Hydroxyapatite)
• Bio-inert Implants (metal)

6. Depending On The Classification Of Edentulous Spaces:

Question 5. Implant materials
Answer:

Implant Dentistry Short Question And Answers

Question 1. Implant
Answer:

Implant is an integral component of the oral implant complex which also consists of supportive bone, interposed keratinized and mucosal oral soft tissues and prosthetic supra structure

Materials Used For Implant:

• Metals
  • Stainless steel
  • Tantalum
  • Gold
  • Titanium
• Zirconium
• Ceramics
• Calcium phosphate
• Bioactive and biodegradable ceramics
• Polymers

Implant Dentistry Viva Voce

1. The minimum width of ridge needed for a bio-integrated hydroxyapatite-coated dental implant is 5 mm
2. The minimum bone height of the ridge needed for a bio-integrated hydroxyapatite-coated dental implant is 8 mm.
3. 2 mm of space is needed between the implant and the inferior alveolar canal