Abstract
Abstract
Objectives
To evaluate tooth development and calculate dental maturity score in prematurely born children and to compare the findings with full-term born children.
Material and methods
Nine-year-old preterm children were selected from the Swedish Medical Birth Register. One group consisted of 36 extremely preterm children (born before week 29), and the other included 38 very preterm children (born during weeks 29 to 32). Panoramic radiography was performed on each child and the preterm children were compared with 42 full-term born children. Five observers independently assessed the tooth development stages for all teeth in the left mandible (31–37) on the panoramic radiographs according to the method described by Demirjian et al. (Hum Biol 45:211–227, 1973). Data from tooth development stages were compiled and converted into a dental maturity score for each group. Kappa values were calculated for intra- and inter-observer agreement.
Results
When the different development stages for each individual tooth were compared, all observers presented a significant delay in the maturity of tooth 37 for the extremely preterm group (p ≤ 0.002). The extremely preterm group had a significantly lower dental maturity score than the full-term group, as assessed by each observer (p ≤ 0.006). Kappa values for inter-observer agreement varied between 0.31 and 0.71 depending on tooth and intra-observer agreement was between 0.16 and 1.0.
Conclusions
At age 9, the extremely preterm children had a general delay in tooth development.
Clinical relevance
The increased survival rate of extremely preterm babies adds a new group of children to society. Dental clinicians should be aware that the delay in tooth development could impact the timing of orthodontic diagnostics and potential treatment.
Publisher
Springer Science and Business Media LLC
Reference24 articles.
1. World Health Organization (2017) http://www.who.int/mediacentre/factsheets/fs363/en/. Accessed 31 Aug 2017
2. Horbar JD, Carpenter JH, Badger GJ, Kenny MJ, Soll RF, Morrow KA, Buzas JS (2012) Mortality and neonatal morbidity among infants 501 to 1500 grams from 2000 to 2009. Pediatrics 129:1019–1026
3. Shah PS, Sankaran K, Aziz K, Allen AC, Seshia M, Ohlsson A, Lee SK (2012) Outcomes of preterm infants <29 weeks gestation over 10-year period in Canada: a cause for concern? J Perinatol 32:32–138
4. Patel RM, Kandefer S, Walsh MC, Bell EF, Carlo WA, Laptook AR, Sánchez PJ, Shankaran S, Van Meurs KP, Ball MB et al (2015) Causes and timing of death in extremely premature infants from 2000 through 2011. N Engl J Med 372:331–340
5. Paulsson L, Bondemark L (2009) Craniofacial morphology in prematurely born children. Angle Orthod 79:276–283
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献