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The post-traumatic colour change of primary incisors: a colourimetric and longitudinal study

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dc.contributor.authorHyun, Hong-Keunen
dc.contributor.authorShin, Teo Jeon-
dc.contributor.authorKim, Young-Jae-
dc.date.accessioned2017-04-19T00:19:42Z-
dc.date.available2017-07-30T20:42:37Z-
dc.date.issued2016-07-
dc.identifier.citationINTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY Vol.26 No.4, pp. 291-300-
dc.identifier.issn0960-7439-
dc.identifier.urihttps://hdl.handle.net/10371/116878-
dc.description.abstractBackground. Tooth colour change after trauma has been described subjectively as ranging from yellow/pink to grey/black.
Aim. To investigate the longitudinal colourimetric change of post-traumatic discoloured primary incisor using an intraoral colourimeter.
Design. A total of 34 primary incisors from 15 boys and eight girls were studied. The mean post-injury day during clinic visits (SD) and number of visit was 205.4 (194.8) and 3.9 (2.0). CIE L* (lightness), a* (green-red) and b* (blue-yellow) of the maxillary primary incisors were measured at every visit. The colour difference (ΔE*(ab)) was calculated between the traumatized tooth and the control. Scatter graphs were made depicting the colour change of discoloured teeth and the ΔE*(ab) over time.
Results. Mean CIE L*, a* and b* of the unaffected control were 80.8 (2.29), 0.9 (0.77) and 13.1 (2.67), respectively. L* gradually decreased to 70.7 (on day 71), then slowly recovered. a* increased to 3.7 (day 29) and decreased slowly. b* only demonstrated a small change that was within the control range during the follow-up. ΔE*(ab) increased to 9.58 (day 56) and decreased slowly.
Conclusion. The earlier recovery of a* was followed by the recovery of L*. During the post-traumatic period, ΔE*(ab) failed to reach the clinically acceptable threshold.
en
dc.language.isoenen
dc.publisherWILEY-BLACKWELLen
dc.subjectThe post-traumatic colour change of primary incisors: a colourimetric and longitudinal studyen
dc.subject의약학en
dc.titleThe post-traumatic colour change of primary incisors: a colourimetric and longitudinal studyen
dc.typeArticleen
dc.contributor.AlternativeAuthor현홍근-
dc.contributor.AlternativeAuthor신터전-
dc.contributor.AlternativeAuthor김영재-
dc.identifier.doi10.1111/ipd.12199-
dc.description.srndOAIID:RECH_ACHV_DSTSH_NO:T201604270-
dc.description.srndRECH_ACHV_FG:RR00200001-
dc.description.srndADJUST_YN:-
dc.description.srndEMP_ID:A080446-
dc.description.srndCITE_RATE:1.303-
dc.description.srndFILENAME:Hyun_et_al-2016-International_Journal_of_Paediatric_Dentistry.pdf-
dc.description.srndDEPT_NM:치의학과-
dc.description.srndEMAIL:hege1@snu.ac.kr-
dc.description.srndSCOPUS_YN:Y-
dc.description.srndFILEURL:https://srnd.snu.ac.kr/eXrepEIR/fws/file/c834cd27-d2b1-499b-a99a-6be06246d6c3/link-
dc.description.srndCONFIRM:Y-
dc.identifier.srndT201604270-
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