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A randomized clinical trial comparing Hall vs conventional technique in placing preformed metal crowns from Sudan

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  • Fadil Elamin
  • Nihal Abdelazeem
  • Isra Salah
  • Yousra Mirghani
  • Ferranti Wong

Abstract

Despite the high success rates of preformed metal crowns (PMCs) in children no randomized clinical trials compare methods of placement and none describe its use in Africa. Our aim was to compare survival and cost-effectiveness of PMCs placed by conventional techniques (CT) and biological Hall techniques (HT) using a prospective randomized control trial in a general dental practice from Khartoum. One hundred and nine and 103 PMCs were placed in randomly selected children (5-8years) with 1–2 carious primary molars using HT and CT respectively and followed for 2 years. Socioeconomic status, periodontal health, occlusion, anxiety, and procedure time were compared using student t-test. Kaplan–Meier survival rates and incremental cost effectiveness ratio (ICER) were compared between CT and HT. CT and HT groups were similar for age, gender, socio-economic status. Survival rates were high (over 90%) for both study arms and not statistically different (p>0.05). Anxiety scores were significantly higher in CT arm after 12 months compared to HT (p 0.05) but occlusions were raised in nearly all subjects in the HT arm (p

Suggested Citation

  • Fadil Elamin & Nihal Abdelazeem & Isra Salah & Yousra Mirghani & Ferranti Wong, 2019. "A randomized clinical trial comparing Hall vs conventional technique in placing preformed metal crowns from Sudan," PLOS ONE, Public Library of Science, vol. 14(6), pages 1-15, June.
    • Handle: RePEc:plo:pone00:0217740
    DOI: 10.1371/journal.pone.0217740
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