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Perio 1 > Overview of Implantology > Flashcards

Overview of Implantology Flashcards

(44 cards)

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1
Q

What is a dental implant?

A

An artificial tooth root placed in the jaw to hold a replacement tooth or bridge

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2
Q

What are the 3 pieces of a dental implant?

important

A
  • Crown: extra-gingival
  • Abutment: transmucosal
  • Implant Body: endosseous portion
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3
Q

What are the features of bone level implants?

important

A
  • Connects at bone
  • Allows customized and angled abutments
  • Esthetic zone
  • Allows two-stage implant surgery
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4
Q

What are the features of tissue level implants?

important

A
  • Connect at soft tissue level
  • Smooth neck shapes the soft tissue
  • One-stage implant surgery
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5
Q

_______________ reduces per-implant bone resorption at the bone crest and maintains the supracrestal attachment

important

A

Platform switching

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6
Q

How does platform switching reduce peri-implant bone resorption?

important

A
  • Increases distance of implant-abutment junction from the crestal bone
  • Limits micro-movements at the bone implant interface
  • Shifts the inflammatory cell infiltrate inward and away from the adjacent crestal bone
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7
Q

True/false

Microbial adhesion can occur on any implant surface, regardless of the degree of surface roughness.

important

A

true

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8
Q

What are the anatomical landmarks to consider during implant placement?

important

A
  • Inferior Alveolar Canal/Mental Foramen
  • Incisive Foramen
  • Maxillary Sinus/Nasal Cavity
  • Lingual undercut
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9
Q

What is the safety zone for placing implants in the premolar/molar areas in the mandible?

important

A

Safety zone of 3mm from the mental foramen and 2mm from the IAN is recommended

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10
Q

What is the most accurate way to detect IAN/mental foramen?

important

A

CT/CBCT scans

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11
Q

How do you know what type of sinus augmentation to do around the maxillary sinus/nasal cavity?

important

A
  • direct sinus lifting: less than 4 mm residual bone height
  • indirect sinus lifting: more than 4 mm residual bone height
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12
Q

If there is less than 4mm residual bone height what type of sinus lift?

important

A

direct

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13
Q

If there is more than 4mm residual bone height what type of sinus lift?

important

A

indirect

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14
Q

What are the bone types in terms of quality?

important

A
  • Type 1: hard and dense like oak wood (D1)
  • Type 2: consistency of pine wood (D2)
  • Type 3: consistency of balsa wood (D3)
  • Type 4: consistency of Styrofoam (D4)
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15
Q

What is the best bone for implants?

A

D2 and then D3

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16
Q

What are the features of type 1 bone?

A
  • Less blood supply than other types (compact bone)
  • Takes longer for an implant to integrate
  • Found in the mandible

bad for implants

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17
Q

What are the features of type 2 bone?

A
  • Thick layer of compact bone surrounds a core of dense, trabecular bone

most ideal bone

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18
Q

What are the features of type 3 bone?

Study These Flashcards
A
  • Thin layer of cortical bone surrounds a core of dense trabecular bone

also ideal

19
Q

What are the features of type 4 bone?

Study These Flashcards
A
  • Thin layer of cortical bone surrounds a core of low density trabecular bone
  • Commonly found in posterior maxilla
20
Q

Mesiodistally, there needs to be at least ___ mm between teeth and implants

important

21
Q

Mesiodistally, there needs to be at least ___ mm between 2 adjacent implants

important

22
Q

Buccolingually, there is significantly greater resorption and gingival recession when the ridge width is less than ___ mm

important

23
Q

Buccolingually, the anterior region needs at least ___ mm of buccal bone thickness

important

24
Q

Buccolingually, the posterior region needs at least ___ mm of buccal bone and _____ mm lingual bone thickness

important

25
Coronal-apically, there should be _____ mm from adjacent CEJ | important
3-4 mm
26
Coronal-apically, it is recommended to place bone level implants... | important
subcrestally
27
What are the siebert classifications for ridge atrophy? | important
* Class I: buccolingual loss of tissue (horizontal) * Class II: apico-coronal loss of tissue (vertical) * Class III: both loss of tissue
28
What are the "normal" dimensional changes 6 months post extraction? | important
- mean horizontal reduction in ridge width: 3.8 mm - mean vertical reduction in ridge height: 1.24 mm
29
How are the fibers oriented around implants? | important
Peri-implant fibers form parallel cuff in an oriented longitudinal direction
30
Peri-implant fibers form __________ cuff in a oriented longitudinal direction around an implant | important
parallel
31
What are the features of the parallel cuff of peri-implant fibers? | important
* Epithelial cells attached by hemidesmosomes * Collagen fibers do not insert into the implant but creates a cuff around the implant creating a mucosal seal * Prevents bacterial invasion
32
What is peri-implant health? | important
Absence of erythema, bleeding on probing, swelling and suppuration.
33
What is peri-implant mucositis? | important
An inflammation in absences of continuous marginal periimplant bone loss. The clinical sign of inflammation is bleeding on probing. Additional signs may include erythema, swelling, and suppuration
34
What is peri-implantitis? | important
A pathological condition occurring in tissues around dental implants, characterized by inflammation in the peri-implant mucosa and progressive loss of supporting bone. Clinical sign of inflammation is detected by bleeding on probings, while progressive bone loss is identified on radiographs
35
What are the signs of peri-implant health? | important
- Absence of Inflammation - No BoP - Bone level change ≤ 2mm
36
What are the signs of peri-implant mucositis? | important
- Signs of Inflammation - BoP and/or SoP - ↑PD compared to baseline - Bone level change ≤ 2mm
37
What are the signs of peri-implantitis? | important
- Signs of Inflammation - BoP and/or SoP - ↑PD compared to baseline or ≥6 mm - Bone loss ≥3 mm
38
What are the risk factors for peri-implantitis? | important
* **Poor plaque control** * Lack of regular maintenance * Tissue quality: thin phenotype, KT band, bone deficiency * Iatrogenic factors: malpositioning, poor design of emergency profile, inadequate abutment/implant seating * **Excessive cement** * Occlusal overload * Titanium particles: implant corrosion, micromovement
39
What are the risk modifiers for peri-implantitis? | important
* **History of periodontal disease** * Smoking * DM * **Genetic factors** * systemic condition
40
Bacterial colonization was initiated within ____ min after implant placement | important
30
41
The sequence of colonization on dental implants and biofilm formation is similar to that of _______ | important
teeth
42
What is the microbiology of implants in fully edentulous patients? | important
* The microbiota is similar to the mucosal flora on the adjacent alveolar ridge * Over 80% were Gram positive facultative cocci * Spirochetes were limited * Fusobacteria/black pigmenting Gram-negative anaerobes were found infrequently
43
What is the microbiology of implants in partially edentulous patients? | important
* The microbiota is similar to remaining teeth * Higher percentages of black-pigmenting Gram negative anaerobes and Capnocytophaga
44
Treat periodontal disease prior to... | IMPORTANT
implant placement

Perio 1 (22 decks)

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