JOP/JCP Shayan

Question 1

Duong (Lang)

Answer 1

Perio disease progression in second half of life and after 1 SRP - Sri Lankan cohort

Exam 2010 - SRP 2013 - Follow up 2014
Vs - No SRP

Mostly moderate progression group tested (2 rapid)

Sites with deeper pockets initiall reduced to greater extent while shallow sites increased over the 4 years

Rate of progression measured by CAL reduced after age 50

Median PDs in rapid and moderate groups initially increased by later decreased

Overall full mouth changes between test and control were minimal - unaffected perio disease progression

Single SRP did not effect perio disease progression

Question 2

Saleh

Answer 2

Retrospective validation and comparison of predictive performance of 10 tooth level prognostic systems

148 patients 3787 teeth
mean FU 26.5yrs

Lack of SSD among some severity categories
Fardel, Faggion, Nunn, Miller would improve by grouping multiple classes
More severe classes associated with higher risk of TLP

Univarient/multivariant analysis

All had great predictive value
Miller’s best - Harrell’s c-index 0.949
All between 0.925-0.949

Controling for maintenance increased predictive ability
Miller and McEntire were best followed by Nunn

Question 3

Abrahamian (sanz…)

Answer 3

Copied Ravida - Inter-examiner reliability of classification of perio

Barcelona

Gold standard - Faculty, clinician, students

7 Expert agreement w/ eachother:
grade: 91%
Extent: 83%
Stage: 82%

Overall agreement:
Grade: 82%
Extent: 75%
Stage: 69%

experience did not influence agreement

Question 4

Renvert (Roos-Jansaker)

Answer 4

RCT - DBBM vs Nothing for regen around implants

n=71

Titanium curettes - Titanium brush - Hydrogen peroxide - saline - Graft (or no graft) - Collagen (or no collagen)

Intra-osseous component of 3mm - at least 270deg

Baseline - 3 - 6 - 9 - 12mo

Cytokine sampling + Patient reported outcomes

RBF: 1.4 © vs 2.7mm (t)
Greater reduction for deeper sites

NSSD in immunological samples
NSSD in patient reported outcomes

DBBM + Collagen had significantly more RDF than debridement alone

Question 5

Ravida (Rodriquez, Saleh, Galli, Troiano, Wang, Moreno)

Answer 5

Correlation between Hx of perio and prevalence/severity of Pi in patients enrolled in maintenance

99 patients (49M 50F)
221implants
10yr FU average

No correlation between increased stage/grade and prevalence of Pi
1mm+ diameter = 1.9x risk Pi
External Hex lower risk
Severity of MBL associated with increased grading
increased grade significant increased risk for boneloss >25%

No correlation between increasing stage/grade and prevalence
When Pi diagnosed, increased risk of severe MBL and failure when Grade C