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Article: Computerized planimetric method for clinical plaque measurement.

TitleComputerized planimetric method for clinical plaque measurement.
Authors
Issue Date1993
Citation
Scandinavian Journal Of Dental Research, 1993, v. 101 n. 1, p. 21-25 How to Cite?
AbstractA computerized planimetric method for plaque area measurement has been developed. Using a computerized image analysis system (CIAS), the plaque area and tooth area on color slides were digitized and the number of pixels automatically counted. The proposed Plaque Percent Index (P% Index) expresses plaque area as a percentage of tooth area. The reproducibility of this method was tested and the influence of photographic technique on the P% Index was determined. The association of the Turesky modified Quigley-Hein plaque index (Q-H Index) and the P% Index was assessed. The present method was highly reproducible for the P% Index with an intraexaminer variation of 0.28% and intraexaminer correlation coefficient of 0.99. The results show that highly reproducible P% Index values with an error of less than 3.0% were obtained when the photographs were taken under the following conditions. For the buccal surfaces of anterior teeth, the slides were photographed within a 20-degree range in the horizontal plane and a 30-degree range in the vertical plane; and for the lingual/palatal surfaces of anterior teeth and the buccal or lingual/palatal surfaces of posterior teeth, the slides were photographed with an image of the whole tooth surfaces in the photographic mirrors. The comparison of the Q-H Index and the P% Index revealed that for each score of the Q-H Index the corresponding values of P% Index were wide with a significant crossover value, although a strongly positive correlation was found between the Q-H Index and the P% Index (r = 0.92, P < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
Persistent Identifierhttp://hdl.handle.net/10722/153819
ISSN
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSöder, POen_US
dc.contributor.authorJin, LJen_US
dc.contributor.authorSöder, Ben_US
dc.date.accessioned2012-08-08T08:21:45Z-
dc.date.available2012-08-08T08:21:45Z-
dc.date.issued1993en_US
dc.identifier.citationScandinavian Journal Of Dental Research, 1993, v. 101 n. 1, p. 21-25en_US
dc.identifier.issn0029-845Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/153819-
dc.description.abstractA computerized planimetric method for plaque area measurement has been developed. Using a computerized image analysis system (CIAS), the plaque area and tooth area on color slides were digitized and the number of pixels automatically counted. The proposed Plaque Percent Index (P% Index) expresses plaque area as a percentage of tooth area. The reproducibility of this method was tested and the influence of photographic technique on the P% Index was determined. The association of the Turesky modified Quigley-Hein plaque index (Q-H Index) and the P% Index was assessed. The present method was highly reproducible for the P% Index with an intraexaminer variation of 0.28% and intraexaminer correlation coefficient of 0.99. The results show that highly reproducible P% Index values with an error of less than 3.0% were obtained when the photographs were taken under the following conditions. For the buccal surfaces of anterior teeth, the slides were photographed within a 20-degree range in the horizontal plane and a 30-degree range in the vertical plane; and for the lingual/palatal surfaces of anterior teeth and the buccal or lingual/palatal surfaces of posterior teeth, the slides were photographed with an image of the whole tooth surfaces in the photographic mirrors. The comparison of the Q-H Index and the P% Index revealed that for each score of the Q-H Index the corresponding values of P% Index were wide with a significant crossover value, although a strongly positive correlation was found between the Q-H Index and the P% Index (r = 0.92, P < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)en_US
dc.languageengen_US
dc.relation.ispartofScandinavian Journal of Dental Researchen_US
dc.subject.meshAdulten_US
dc.subject.meshDental Plaque - Pathologyen_US
dc.subject.meshDental Plaque Indexen_US
dc.subject.meshHumansen_US
dc.subject.meshImage Processing, Computer-Assisteden_US
dc.subject.meshLinear Modelsen_US
dc.subject.meshMaleen_US
dc.subject.meshObserver Variationen_US
dc.subject.meshPhotogrammetryen_US
dc.subject.meshPhotographyen_US
dc.subject.meshReproducibility Of Resultsen_US
dc.titleComputerized planimetric method for clinical plaque measurement.en_US
dc.typeArticleen_US
dc.identifier.emailJin, LJ:ljjin@hkucc.hku.hken_US
dc.identifier.authorityJin, LJ=rp00028en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid8441891-
dc.identifier.scopuseid_2-s2.0-0027546391en_US
dc.identifier.volume101en_US
dc.identifier.issue1en_US
dc.identifier.spage21en_US
dc.identifier.epage25en_US
dc.identifier.isiWOS:A1993KM75800005-
dc.identifier.scopusauthoridSöder, PO=7006570984en_US
dc.identifier.scopusauthoridJin, LJ=7403328850en_US
dc.identifier.scopusauthoridSöder, B=6701795462en_US

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