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Clinical Oral Investigations

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01-05-2014 | Original Article

Is there a need for orthodontic plaque indices?—diagnostic accuracy of four plaque indices

Authors: Ekaterini Paschos, Katharina Bücher, Karin C. Huth, Alexander Crispin, Andrea Wichelhaus, Tamina Dietel

Published in: Clinical Oral Investigations | Issue 4/2014

Abstract

Objectives

The aim of this study was to assess the diagnostic performance and accuracy of four plaque indices for orthodontic patients.

Materials and methods

The plaque accumulation of 140 maxillary incisors with bonded brackets was recorded using intra-oral photographs and assessed using four different plaque indices: the orthodontic plaque (OP) index, the modified orthodontic plaque (MOP) index, the Quigley and Hein (QHP) index and the modified Navy plaque (MNP) index. The assessment was performed twice within a time interval of 4 weeks by four different examiner groups: orthodontists, dentists, students and orthodontic assistants.

Results

No significant differences were detected for the OP and MOP indices among the examiner groups. A significant difference was found for the QHP and MNP indices. The inter- and intra-examiner reliability of the OP and MOP indices was good. In contrast, the reliability for the QHP and MNP indices was moderate to poor with few exceptions. The discrimination performance of the OP and MOP indices was excellent. The sum of the sensitivity and specificity was generally lower for the QHP and MNP indices compared with the OP and MOP indices.

Conclusion

OP and MOP indices showed good performance. The QHP and MNP indices are not appropriate for orthodontic purposes.

Clinical relevance

Traditional plaque indices reflect the typical pattern of plaque accumulation for patients without multi-bracket appliances. The performance of these indices for orthodontic patients has never been investigated. Orthodontic plaque indices that focus on the surface along the gingival margin and areas around the bracket exhibit higher diagnostic performance and accuracy compared with traditional indices.

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Title: Is there a need for orthodontic plaque indices?—diagnostic accuracy of four plaque indices
Authors: Ekaterini Paschos
Katharina Bücher
Karin C. Huth
Alexander Crispin
Andrea Wichelhaus
Tamina Dietel
Publication date: 01-05-2014
Publisher: Springer Berlin Heidelberg
Published in: Clinical Oral Investigations / Issue 4/2014
Print ISSN: 1432-6981
Electronic ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-013-1076-2

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Is there a need for orthodontic plaque indices?—diagnostic accuracy of four plaque indices

Abstract

Objectives

Materials and methods

Results

Conclusion

Clinical relevance

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objectives

Materials and methods

Results

Conclusion

Clinical relevance

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