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The Hall Technique and exfoliation of primary teeth: a retrospective cohort study

Authors
  • Araujo, Mariana P.1
  • Uribe, Sergio2
  • Robertson, Mark D.3
  • Mendes, Fausto M.1
  • Raggio, Daniela P.1
  • Innes, Nicola P. T.3
  • 1 Department of Paediatric Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil , São Paulo (Brazil)
  • 2 School of Dentistry, Universidad Austral de Chile, Valdivia, Chile , Valdivia (Chile)
  • 3 School of Dentistry, University of Dundee, Park Place, Dundee, DD1 4HR, UK , DD1 4HR (United Kingdom)
Type
Published Article
Journal
British Dental Journal
Publisher
Nature Publishing Group UK
Publication Date
Feb 14, 2020
Volume
228
Issue
3
Pages
213–217
Identifiers
DOI: 10.1038/s41415-020-1251-1
Source
Springer Nature
License
Yellow

Abstract

Introduction There has been speculation about early exfoliation of carious primary molar teeth treated with the Hall Technique (HT). Aim To investigate the hypothesis that there is a difference in exfoliation times between teeth treated with the HT and contralateral teeth not treated with the HT. Methods Split-mouth retrospective cohort study of children treated in Dundee Dental Hospital and School (DDH&S). Radiographs and clinical records were assessed to compare children's ages at exfoliation for HT-treated primary molars and their contralateral teeth not treated with the HT. Primary molars' root resorption was also evaluated to assess whether the HT influenced the rate of root resorption. Results Using DDH&S's clinical systems, children's records (n = 13,160) were screened for children's ages and sequential radiographs, with 192 children potentially eligible. After assessing radiographs and clinical records, 39 children met the inclusion criteria. Their mean age at time of HT treatment was 7.2 years (range = 4.0 to 11.0; SD = 1.5). There was no evidence of a difference (p = 0.41) between children's ages at exfoliation of HT teeth (10.7; SD = 1.2 years) and contralateral teeth (11.0; SD = 1.4 years). Conclusion There is no evidence that use of the Hall Technique is associated with early exfoliation of primary molars.

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