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Open Dent J. 2009 Jul 28;3:154-60. doi: 10.2174/1874210600903010154.

The relationship between bleeding on probing and subgingival deposits. An endoscopical evaluation.

Author information

1
Department of Periodontology and Implantology, School of Dentistry, Alma Mater Studiorum - University of Bologna. Bologna, Italy. luigi.checchi@unibo.it

Abstract

BACKGROUND:

Bleeding on probing (BOP) is an indicator of tissue inflammatory response to bacterial pathogens. Due to anatomical limitations, the entity and physical state of microbial aggregations located under the gingival margin and their relations to BOP have been hardly investigated till now. The recent introduction of the endoscopy has allowed clinicians to observe the subgingival environment in a non-traumatic way. The aim of this study is to evaluate the correlation between BOP and subgingival deposits by using this new technology.

METHODS:

107 teeth (642 individual sites) from 16 periodontal patients, treated with scaling and root planing, were evaluated for plaque index (PI), gingival index (GI), probing pocket depth (PPD), bleeding on probing (BOP), endoscopic biofilm index (EBI), and endoscopic calculus index (ECI) at one-month revaluation.

RESULTS:

A linear association between BOP and PD, EBI, and ECI was detected. The BOP provided a high level of specificity but quite low sensitivity values both for ECI (sensitivity 40%, specificity 86%) and EBI (sensitivity 37%, specificity 89%). The BOP sensitivity was directly linked to the amount of subgingival deposits.

CONCLUSIONS:

This study demonstrates a direct relationship between BOP and presence/amount of subgingival deposits. More investigations on larger samples are, however, needed.

KEYWORDS:

Endoscopy; biofilm; bleeding on probing; calculus.; pocket depth; root planing

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