Outcomes of preformed metal crowns placed with the conventional and Hall techniques: A systematic review and meta‐analysis

Background

Preformed metal crowns (PMCs) have been used to restore carious primary molars and have a high success and survival rate. There are two methods currently employed for PMC placement ‐ the conventional technique (CT) and Hall technique (HT).

Aim

This systematic review aims to compare the outcomes of PMCs placed using the CT and HT.

Design

This systematic review was conducted according to the Preferred Reporting Items for Systematic Review and Meta‐analysis statement. A literature search of five databases was performed up to 23 August 2022. Clinical studies comparing carious primary molars restored with PMCs using either technique with a minimum 12‐month follow‐up were included. Risk of bias (RoB) assessment was performed using the National Institutes of Health Quality Assessment tool.

Results

Five articles met the inclusion criteria, and four were included for meta‐analysis. The 12‐ and 24‐month success and survival rates were above 85% for both groups, with no significant differences shown at 12 and 24 months. The HT requires a shorter treatment duration, is more cost‐effective and has a high level of acceptability among parents when compared to the CT. Four articles were rated fair, and one article was rated good in the RoB assessment.

Conclusion

Greater consideration may be given towards using the HT as part of standard treatment procedures in managing carious primary molars. Future studies should standardise reporting of outcomes to facilitate a more homogeneous pool of data for future meta‐analysis.

Other Information

Published in: International Journal of Paediatric Dentistry
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: https://dx.doi.org/10.1111/ipd.13029