Peri implant diseases

Question 1

what percentage of people 50-64 are fully edentulous?

Answer 1

10-13%

Question 2

what percentage of people 20-49 have at least one missing tooth

Answer 2

69%

Question 3

criteria for successful implant

Answer 3

• implant is immobile
• absence of peri implant radiolucency
• absence of pain, inf, neuropathy, paresthesia
• < 0.2mm vert bone loss after 1st yr of function

Question 4

peri implant mucositis

Answer 4

• reversible inflam of mucosa surrounding the implant
• presence of bact plaque and calculus
• edema, redness, mucosa hyperplasia
• BOP
• occasional pus
• no radio evidence of bone resorption

Question 5

peri iplantitis

Answer 5

inflam reactions assoc with loss of supporting bone around an implant in function

Question 6

peri implantitis histo

Answer 6

• numerous neutrophils in tissue surrounding the implant
• direct contact between plaque on implant surface and inflamed CT
• NOT SEEN in PD

Question 7

primary etiologic factor of peri implantitis and mucositis

Answer 7

bacterial plaque (gram neg anaerobic)

• AA
• PG
• tannerella forsythia
• PI
• peptostrep micros
• F nuc

Question 8

implants and teeth may have a _____ microbiota

Answer 8

different

Question 9

other primary etiological factor for peri implant disease

Answer 9

occlusal trauma (and bruxism)

Question 10

Class 1 peri implantitis

Answer 10

Slight horizontal bone loss with minimal peri-implant defects

Question 11

Class 2 Peri implantitis

Answer 11

Moderate horizontal bone loss with isolated vertical defects

Question 12

class 3 peri implantitis

Answer 12

Moderate to advanced horizontal bone loss with broad, circular bony defects

Question 13

class 4 peri implantitis

Answer 13

Advanced horizontal bone loss with broad, circumferential vertical defects, as well as loss of the oral and/or vestibular bony wall

Question 14

class 1 PI tx

Answer 14

• surg reduction of pocket depth
• thinning and reposition of flaps atbone edge level
• implant surface cleaned and decontaminated
• implantoplasty if threads exposed

Question 15

class 2 PI tx

Answer 15

• similar to class 1
• flat reposition more apically, requiring implantoplasty
• osteoplasty if defect involves one or two walls

Question 16

class 3 and 4 PI tx

Answer 16

presence of vertical defects almost alwasy requires the use of GTR techniques