Lit

Question 1

Green 1962

Answer 1

Loss of stippling is one of the earliest signs of inflammation

Question 2

Bowers 1963

Answer 2

AG
Range 1-9 mm; 
Greatest: incisors; 
Least: premolars; 
Max>Mand.
Frenum/muscle attachments assoc. with narrow zone of AG

Question 3

Tenenbaum & Tenenbaum 1986

Answer 3

Widest in incisor area (4-6mm) and narrowest at distal to canine in the deciduous (1st molar) and permanent (1st premolar)

Sulcus depth is a sig. determinant in the variations of AG among the
primary, transitional, and permanent dentition

Question 4

Voigt et al. 1978

Answer 4

Range 1-8 mm; increased from later incisors (1.3mm) to the 1st and 2nd molar (4.7mm). Greatest width in 1
st molar
Decreased from primary to permanent dentition.

Question 5

Lang and Loe 1972

Answer 5

KTW >2 mm (w/ 1mm AG) showed less gingival inflammation.

Question 6

Wennström and Lindhe 1983

Answer 6

7 beagles
Split mouth
Remove AG and graft on right, no graft left
Daily performed mechanical plaque control was sufficient to maintain peridontal health without signs of recession of the gingival margin or attachment loss, independent of attached or keratinized gingiva.

Question 7

Cortellini and

Bissada 2018

Answer 7

A minimum amount of KT is not needed to prevent attachment loss when good OH are present.
- But attached gingiva (2 mm of KG and 1 mm of AG) is important to
maintain gingival health in patients with inadequate plaque control.

Thin-scalloped,” “thick-scalloped,”
and “thick-flat” periodontal biotypes can be evaluated through specific methods for gingival thickness, keratinized
tissue width, and buccal bone plate thickness evaluation

Question 8

Cook et al. 2011

Answer 8

Thin periodontal biotype (based on visibility) was
significantly related to thinner labial plate thickness (50% less), increased distance from CEJ to alveolar crest and narrow keratinized tissue width.

Question 9

Ainamo and Loe 1966

Answer 9

Free gingival groove only present in 1/3 of normal gingiva

Question 10

Tarnow et al. 1992

Answer 10

5mm -100%
6mm - 56%
7mm - 27%

Question 11

McHugh 1971

Answer 11

Col - higher plaque accumulation than buccal/lingual
non-keratinized (REE)
Correlated to presence/severity of gingivitis

Question 12

Torabinejad et al. 2007

Answer 12

Overall Success rates:
single implant crown - 95%
root canal tx - 84%
FPD - 81%

Question 13

Fugazzotto 2001

Answer 13

Root amputation vs Molar implant (13yr follow up)
distal mandibular root - lowest success - 75%
all others range from 95-100%
Cumulative average - 96.8%
Implant - 97%
Worst for both were lone standing terminal abutments

Question 14

Avila et al. 2009

Answer 14

The minimum acceptable C:R is 1:1 when perio is healthy and occlusion is controlled

Question 15

Tenenbaum et al 2017

Answer 15

232 implants 10 year follow up
PIM - 60.2% implants 73% patients
PI - 12% implants 15% patients

Question 16

Chrcanovic et al. 2017

Answer 16

Smoking and antidepressants and implants
10,000 implants from 1980-2014
6.3% failure
Smoking and intake of antidepressants were statistically significant predictors
Odds Ratio
Smoking: 3.265
Antidepressants: 2.438