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Ratio and Rate of Induced Root Growth in Necrotic Immature Teeth

  • Journal of the Korean academy of pediatric dentistry
  • Abbr : J Korean Acad Pediatr Dent
  • 2018, 45(2), pp.225-234
  • DOI : 10.5933/JKAPD.2018.45.2.225
  • Publisher : The Korean Academy Of Pediatric Dentistry
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : August 18, 2017
  • Accepted : November 15, 2017
  • Published : May 31, 2018

Eun Jung Sang 1 Ji-Soo Song 2 Shin Teo Jeon 3 Kim, Young J 3 Kim, JungWook 3 Jang, KiTaeg 3 Sang-Hoon Lee 3 Hong-Keun Hyun 3

1서울대학교 치의학대학원 치과보존학교실
2서울대학교 치의학대학원 소아치과학교실
3서울대학교

Accredited

ABSTRACT

The purpose of this study was to analyze the ratio and rate of apical closure when inducing root growth of necrotic immature permanent teeth using alternative triple antibiotics. 24 permanent teeth in the treatment group and 27 premolars in the control group were retrospectively studied using periapical radiographs for more than 300 days after the first visit. The difference in the growth rate between the two groups was statistically compared using the Mann- Whitney test at a significance level of 0.05. There were no statistically significant differences between the two groups in the first month and during months 1 - 3, 3 - 6, and 6 - 12. After 12 months, the cumulative rate of decrease in the apical foramen width in the treatment group was 50.59% and that in the control group was 71.82%, which revealed a significant difference between the two groups. There were significant differences in the rates of decrease in the apical foramen width after 3, 6 months, and later period in the treatment group, respectively. The cumulative rate of increase in the root dentin area presented no statistically significant differences between the treatment group and control group during the entire period of examination.

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