Implant Dentistry Question And Answers

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”.

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:

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

Read And Learn More: Prosthodontics Question And Answers

Question 2. Parts of implants.
Answer:

1. Implant body:
   • It is the component that is placed within the bone during the first stage of surgery
   • It can be threaded or non-threaded
2. Healing screw:
   • During the healing phase, this screw is placed on the superior surface of the body
   • 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
   • Function:
     • Prevents overgrowth of tissues around the implant
4. Abutments:
   • It resembles prepared tooth
   • Provides retention to the prosthesis
5. Impression posts:
   • It facilitates the transfer of the intra-oral location to a similar position on the cast
6.  Laboratory analogs:
   • It represents 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:

It 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 remodelling 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:
   • It should be healthy
6. Surgical technique:
   • 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:
  • It receives its primary bone support by resting on it
• Transosteal:
  • It penetrates both cortical plates
  • It possesses through the entire thickness of the alveolar bone
• Endosteal:
  • It extends into the basal bone
  • It transects only one cortical bone
  • It 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:

It 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 of 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