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

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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References

  1. Innes N P T, Evans D J P, Bonifacio C C et al. The Hall Technique 10 years on: Questions and answers. Br Dent J 2017; 222: 478-483.

    Article  Google Scholar 

  2. Innes N P T, Evans D J P, Stirrups D R. Sealing caries in primary molars: randomized control trial, 5year results. J Dent Res 2011; 90: 1405-1410.

    Article  Google Scholar 

  3. Santamaria R M, Innes N P, Machiulskiene V, Evans D J, Splieth C H. Caries management strategies for primary molars: 1yr randomized control trial results. J Dent Res 2014; 93: 1062-1069.

    Article  Google Scholar 

  4. Santamaria R M, Innes N P, Machiulskiene V, Evans D J, Alkilzy M, Splieth C H. Acceptability of different caries management methods for primary molars in a RCT. Int J Paediatr Dent 2015; 25: 9-17.

    Article  Google Scholar 

  5. van der Zee V, van Amerongen W E. Short communication: Influence of preformed metal crowns (Hall technique) on the occlusal vertical dimension in the primary dentition. Eur Arch Paediatr Dent 2010; 11: 225-227.

    Article  Google Scholar 

  6. Hesse D, de Araujo M P, Olegário I C, Innes N, Raggio D P, Bonifácio C C. Atraumatic Restorative Treatment compared to the Hall Technique for occluso-proximal cavities in primary molars: study protocol for a randomized controlled trial. Trials 2016; DOI: 10.1186/s13063-016-1270-z.

  7. Araujo M P, Hesse D, Bonifácio C C, Innes N P, Raggio D P. Hall Technique reveals faster exfoliation in primary molars compared to ART-2 years RCT. Eur Arch Paediatr Dent 2019; 20: 127-237.

  8. Lachin J M, Foulkes M A. Evaluation of sample size and power for analyses of survival with allowance for nonuniform patient entry, losses to follow-up, noncompliance, and stratification. Biometrics 1986; 42: 507-519.

  9. Demirjian A, Goldstein H, Tanner J M. A new system of dental age assessment. Hum Biol 1973; 45: 211-227.

  10. Wright F A, Widmer R P. Pulpal therapy in primary molar teeth: a retrospective study. J Paedod 1979; 3: 195-206.

  11. Wickham H. Tidyverse: Easily Install and Load the 'Tidyverse'. 2017. Available online at https://cran.r-project.org/web/packages/tidyverse/index.html (accessed July 2019).

  12. Therneau T. A Package for Survival Analysis in S. version 2.38. 2017.Available online at https://cran.r-project.org/web/packages/survival/index.html (accessed July 2019).

  13. So D, Blain K, Innes N et al. Measurement Of Occlusal Equilibration Following Hall Crown Placement; Pilot Study. J Dent Res 2015; 94 (Spec Iss A): Abstract No 0080.

  14. Consolaro A. Orthodontic movement in deciduous teeth. Dental Press J Orthod 2015; 20: 16-19.

    Article  Google Scholar 

Download references

Acknowledgements

The authors would like to acknowledge and thank the NHS records administrative staff in the Dental Hospital for making the patient records available and Professor McIntyre as the Clinical Lead for supporting this project.

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Authors and Affiliations

Authors

Contributions

NPI, DPR, FMM and MPA conceived and designed this project. MPA and NPI wrote the protocol. MPA, MR and NPI carried out the data collection. SU and FMM carried out the statistical analysis. MPA, SU, MR, FMM, DPR and NPI took part in data interpretation, prepared, critically revised and approved this manuscript.

Corresponding author

Correspondence to Nicola P. T. Innes.

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Funding

The São Paulo Research Foundation (FAPESP) granted an international fellowship (ref number 2018/12143-4) that supported this study. The authors' institutions also supported this study and no other external funding was received.

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Araujo, M., Uribe, S., Robertson, M. et al. The Hall Technique and exfoliation of primary teeth: a retrospective cohort study. Br Dent J 228, 213–217 (2020). https://doi.org/10.1038/s41415-020-1251-1

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