Comparison of the longevity of prefabricated and conventional band and loops in children’s primary teeth

Abstract

Background: Prefabricated band and loops require only one appointment, are quickly placed in
a session, and do not require laboratory work; thus, they need less time and cost. The aim of this
study was to evaluate the survival rate of prefabricated band and loops in space maintenance of
primary teeth and compare them with conventional band and loops.
Materials and Methods: In this prospective clinical trial study 4–9‑year‑old patients, who met
the requirements of the present study, were divided into two groups. The first group conventional
band and loops and the second group prefabricated band and loops were placed. The patients were
evaluated for cement dissolving. Failure of soldering (SF), breakdown, and deformation of each
component of the band and loops, survival rate, and gingival health at the 1st, 3rd, 6th, and 9th‑month
Wilcoxon test, Fisher’s exact test, Mann–Whitney test, Friedman test, and Kaplan–Meier test. Was
used The level of statistical significance was set at P ≤ 0.05.
Results: The two groups were not significantly different at the 1st, 3rd, 6th, and 9th‑month recalls in
cement solution, SF, breakdown, and deformation of each component of the band and loops. The
survival rate of the conventional and prefabricated band and loops was 92% in the 9 months, and
no significant difference was witnessed in survival rates between the two groups. The prevalence
of gingivitis in prefabricated band and loops and conventional band and loops in the 9th month was
statistically insignificant (P = 0.03).
Conclusion: There is a similar success rate for the conventional and prefabricated band and loops.
Key Words: Child, primary teeth, space maintenance