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Article: Characterization of sounds emanating from the human temporomandibular joints

TitleCharacterization of sounds emanating from the human temporomandibular joints
Authors
Keywordsauscultation
crepitus
frequency analysis
sonography
temporomandibular joint
vibration transmission
Issue Date1996
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/archoralbio
Citation
Archives Of Oral Biology, 1996, v. 41 n. 7, p. 631-639 How to Cite?
AbstractSounds from the temporomandibular joint were recorded on audiotape from 238 individuals by placing microphones in both ears. The recordings were later digitized at a sample rate of 1.7 kHz with 10-bit resolution and stored on computer disk. At least two open close cycles were assessed from each individual; 2707 different individual sounds were analysed in the time and frequency domains. The sounds were classified as: (a) single, short duration (clicks), (b) multiple, short-duration (creaks) and (c) long duration (crepitus). The sounds were further subclassified into either high or low amplitude by (i) the attack, which produced hard and soft categories and (ii) comparing the amplitude between sides bilateral sounds were those with amplitudes differing by <40 mV; the rest were unilateral. To establish the robustness of the classification 42 acoustic events were selected to be classified visually by three observers on two separate occasions. Intraobserver agreement was 82% (κ = 0.75) while interobserver agreement was 60% (κ = 0.71). Statistically significant differences were noted between all classifications of sound. These were most marked in the time domain. A simple, automated classification scheme was devised that was capable of categorizing the sounds with 82% agreement (κ = 0.71) compared to a human observer.
Persistent Identifierhttp://hdl.handle.net/10722/83027
ISSN
2015 Impact Factor: 1.733
2015 SCImago Journal Rankings: 0.713
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPrinz, JFen_HK
dc.contributor.authorNg, KWen_HK
dc.date.accessioned2010-09-06T08:36:06Z-
dc.date.available2010-09-06T08:36:06Z-
dc.date.issued1996en_HK
dc.identifier.citationArchives Of Oral Biology, 1996, v. 41 n. 7, p. 631-639en_HK
dc.identifier.issn0003-9969en_HK
dc.identifier.urihttp://hdl.handle.net/10722/83027-
dc.description.abstractSounds from the temporomandibular joint were recorded on audiotape from 238 individuals by placing microphones in both ears. The recordings were later digitized at a sample rate of 1.7 kHz with 10-bit resolution and stored on computer disk. At least two open close cycles were assessed from each individual; 2707 different individual sounds were analysed in the time and frequency domains. The sounds were classified as: (a) single, short duration (clicks), (b) multiple, short-duration (creaks) and (c) long duration (crepitus). The sounds were further subclassified into either high or low amplitude by (i) the attack, which produced hard and soft categories and (ii) comparing the amplitude between sides bilateral sounds were those with amplitudes differing by <40 mV; the rest were unilateral. To establish the robustness of the classification 42 acoustic events were selected to be classified visually by three observers on two separate occasions. Intraobserver agreement was 82% (κ = 0.75) while interobserver agreement was 60% (κ = 0.71). Statistically significant differences were noted between all classifications of sound. These were most marked in the time domain. A simple, automated classification scheme was devised that was capable of categorizing the sounds with 82% agreement (κ = 0.71) compared to a human observer.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/archoralbioen_HK
dc.relation.ispartofArchives of Oral Biologyen_HK
dc.subjectauscultationen_HK
dc.subjectcrepitusen_HK
dc.subjectfrequency analysisen_HK
dc.subjectsonographyen_HK
dc.subjecttemporomandibular jointen_HK
dc.subjectvibration transmissionen_HK
dc.titleCharacterization of sounds emanating from the human temporomandibular jointsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-9969&volume=41&issue=7&spage=631&epage=639&date=1996&atitle=Characterization+of+sounds+emanating+from+the+human+temporomandibular+jointsen_HK
dc.identifier.emailNg, KW: kaing@hkucc.hku.hken_HK
dc.identifier.authorityNg, KW=rp00765en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0003-9969(96)00070-2en_HK
dc.identifier.pmid9015563-
dc.identifier.scopuseid_2-s2.0-0030186834en_HK
dc.identifier.hkuros24966en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030186834&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume41en_HK
dc.identifier.issue7en_HK
dc.identifier.spage631en_HK
dc.identifier.epage639en_HK
dc.identifier.isiWOS:A1996WD10800003-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridPrinz, JF=7005331860en_HK
dc.identifier.scopusauthoridNg, KW=7403178774en_HK

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