Longitudinal (short version) Flashcards
What were the main findings of the Michigan Longitudinal Studies?
Shallow pockets often respond to therapy with CALoss
Moderate and Deep pockets respond better to surgical therapy
Some initial gains are lost after surgical therapy
3mrc can maintain treatment outcomes regardless of OH
Why do the Michigan studies say recall is more important than OH?
Ramfjord 1982
Stratified the patients from Knowles 1979 by FMPS > or < 25%
Therapeutic improvements were maintained with 3mrc regardless of PI
Patients with better OH had better initial response to therapy
Whats significant about Knowles 1979?
First to stratify based on PD
Shallow 1-3
Moderate 4-6
Deep 7+
Deep pockets gain more attachments than moderate
What is the “Michigan Concept?”
Effective Root Curettage
Maintenance of the supporting structures of the teeth
Who was the head of the Minnisota studies?
Pihlstrom
What are the major findings of the Minnesota studies?
Surgical treatment is more effective in deep PD (>7mm)
PD reduction sustained longer for these PD than in non-surgical (6.5 vs 3yrs)
Molars do not respond as well to treatment
What years are the Minnesota studies?
1981, 1983, 1984
Who lead the Nebraska studies?
Kaldahl
What can happen with coronal scaling?
Kaldahl 1996
CS in pockets >7mm can result in abscess formation
What procedures did the Nebraska studies research?
Coronal scaling vs SRP vs MWF vs APF+OSS
What procdure will have the greatest CAL gain in 5-6mm pockets? citation
SRP
Kaldahl 1988
How long will PD improvements continue after therapy?
Kaldahl 1996
10wks plateau
Why do we do APF OSS often now>?
Kaldahl 1996 found after 5yrs, pockets >5mm had greater long term PD reduction when receiving APF+OSS
What were the main findings of the Nebraska studies?
non/past smokers have 2x more CAL gain and PD reduction Coronal scaling results in the highest amount of breakdown Deep pockets (>7mm) respond best and sustain longest with APF+OSS
Who lead the Lloma Linda studies?
Badersten
What were some findings from the Lloma Linda studies in regard to instrumentation? Citation
Badersten
Hand vs Ultrasonic - NSSD
Multiple SRP - NSSD ( SINGLE ROOTED)
Operater variability - minimal
Will patients gain CAL from home care?
NO
Cercek et al. 1983
Brushing/Flossing/CHX - minimal effect
SRP - EFFECTIVE
Who lead the Arizona studies and what is unique about them?
Becker and Becker
Private practice
What did the Arizona studies find?
Similar to university studies PD 1-3: CALoss with treatment PD4-6 and 7+: CAL gain lowest residual pocketing from APF+OSS Good maintenance achieve good results regardless of treatment modality
What were some results of the Washington studies?
Flap curettage vs Osseous
Deeper PD (5-8) greater PD reduction with osseous
Osseous was more stable after 5yrs
More BOP in curetage groups
What major finding came from the swedish studies?
Lindhe 1982 Critical probing depths
Heitz Mayfield & Lang 2013 -
What major finding on oral hygiene came from swedish group?
Lindhe 1984
Oral hygiene effected long term results more than surgical technique (PI >10%)
Who lead the Denmark studies?
Isidor (and Karring()
What were the major findings from the Denmark studies?
APF and MWF resulted in shallower pockets than SRP
SRP resulted in more CAL gain
MWF resulted in significant fill of vertical defects (0.5mm)
