Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/97737
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Type: Journal article
Title: Prevalence of infraocclusion of primary molars determined using a new 2D image analysis methodology
Author: Odeh, R.
Mihailidis, S.
Townsend, G.
Lähdesmäki, R.
Hughes, T.
Brook, A.
Citation: Australian Dental Journal, 2016; 61(2):183-189
Publisher: Wiley
Issue Date: 2016
ISSN: 0045-0421
1834-7819
Statement of
Responsibility: 
Ruba Odeh, Suzanna Mihailidis, Grant Townsend, Raija Lähdesmäki, Toby Hughes, and Alan Brook
Abstract: The reported prevalence of infraocclusion varies widely, reflecting differences in definitions and measurement/scoring approaches.This study aimed to quantify the prevalence and extent of infraocclusion in singletons and twins during the late mixed dentition stage of dental development using a new diagnostic imaging method and objective criteria. The study also aimed to determine any associations between infraocclusion and sex, arch type, arch side and tooth type.Two samples were analysed; 1,454 panoramic radiographs of singletons and 270 dental models of twins. Both samples ranged in age from 8-11 years. Adobe Photoshop CS5 was used to measure the extent of infraocclusion. Repeatability tests showed systematic and random errors were small.The prevalence in the maxilla was low (<1%), whereas the prevalence in the mandible was 22% in the singleton sample and 32% in the twin sample. The primary mandibular first molar was affected more often than the second molar. There was no significant difference in the expression between sexes or sides.A new technique for measuring infraocclusion has been developed with high intra- and inter-operator reproducibility. This method should enhance early diagnosis of tooth developmental abnormalities and treatment planning during late mixed dentition stage of development.
Keywords: Tooth eruption; primary dentition; submerged teeth
Rights: © 2016 Australian Dental Association
RMID: 0030041300
DOI: 10.1111/adj.12349
Appears in Collections:Dentistry publications

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