Is loss of attachment due to root planning and scaling in sites with minimal probing depths a statistical or real occurrence?

Journal of Periodontology
J C GunsolleyT C Waldrop

Abstract

Following root planing and scaling many studies have implied an association between a loss of clinical attachment at sites with initially shallow pockets (1 to 3 mm) and gains in attachment level for deeper probing depths. However, these effects are also consistent with a statistical phenomenon referred to as regression towards the mean. This principle suggests that extreme values will moderate the next time they are recorded. The purpose of this report was to estimate the effect that regression towards the mean has on perceived changes in attachment level after root planing and scaling. During the initial examination, 2 different investigators conducted 2 full-mouth probings. Two quadrants were randomly selected to be root planed and scaled until the root surfaces were smooth by tactile touch of an explorer. The 2 remaining quadrants were not treated. At 4 to 6 weeks after treatment, another full mouth probing was done. An examiner who was blind to the quadrants that had been scaled measured attachment level and probing depth after therapy. This study design provided periodontal measurements before and after root planing and scaling, measurements before and after a period of 4 to 6 weeks of no therapy, and duplicate measuremen...Continue Reading

References

Sep 1, 1992·Pain·Coralyn W Whitney, Michael Von Korff
Sep 1, 1989·Journal of Clinical Periodontology·B LoosJ Egelberg
Jul 1, 1982·Journal of Clinical Periodontology·J LindheE Westfelt
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Nov 13, 1995·Archives of Internal Medicine·L ForrowT L Delbanco
Nov 1, 1996·Annals of Periodontology·C M Cobb

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Citations

Feb 20, 2004·Annals of Periodontology·William W Hallmon, Terry D Rees
Aug 28, 2004·Periodontology 2000·Patrick A Adriaens, Laurence M Adriaens
Apr 6, 2016·Periodontology 2000·David E DeasCharles A Powell
Dec 31, 2015·European Journal of Oral Sciences·Vibeke Baelum, Rodrigo López

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