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The risk of healing complications in primary teeth with extrusive or lateral luxation-A retrospective cohort study

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  1. The risk of healing complications in primary teeth with concussion or subluxation injury-A retrospective cohort study

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. The risk of healing complications in primary teeth with intrusive luxation: A retrospective cohort study

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  1. Ectopic eruption of the second premolar: an analysis of four different treatment approaches

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  2. Phenotypic presentations of Hajdu-Cheney syndrome according to age - 5 distinct clinical presentations

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  3. Autotransplantation of Teeth to the Anterior Region

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BACKGROUND/AIM: Traumatic dental injuries (TDI) in the primary dentition occur frequently. Long-term complications may potentially cause damage to the permanent successor. The aim of this study was to report the risk of pulp necrosis (PN), pulp canal obliteration (PCO), infection-related resorption (IRR), ankylosis-related resorption (ARR) and premature tooth loss (PTL) in primary teeth following extrusion or lateral luxation and to identify risk factors for PN and PTL.

MATERIAL AND METHODS: This was a retrospective study of 24 patients with 26 extruded primary teeth and 242 patients with 331 primary teeth with lateral luxation. Laterally luxated teeth were left without treatment. Extruded teeth were repositioned. Follow up included examination after 4 weeks, 8 weeks, 6 months, 1 year and when the patients were 6 years old. The minimum follow up was 1 year or until tooth loss. Kaplan-Meier and Aahlen-Johansson tests were used along with Cox regression analysis. The level of significance was 5%.

RESULTS: Risk estimated after 3 years-Extrusion: PCO 39.8% (95% CI: NA), PN 15.6% (95% CI: 1.5-29.7), IRR 3.8% (95% CI: 0-11.2) and PTL 43.3% (95% CI: 25.5-61.2). All cases of PN and PTL occurred within the first year. Lateral luxation: PCO 41.3% (CI: 95% 35.7-46.9), PN 19.8% CI: 95% (15.3-24.2), IRR 7.0% (95% CI: 4.1-9.8), ARR 1.4% (95% CI: 0-3.3) and PTL 24.8% (95% CI: 18.8-30.8). Risk factors for PN: concomitant crown fracture and patient aged 4 years or more. Nearly all teeth (95%) realigned spontaneously within the first year. Nearly all cases of PN and PTL (95.7%) occurred within the first year.

CONCLUSION: The healing potential for laterally luxated teeth was high and more than half of the extruded teeth, which were repositioned after injury, showed long-term survival.

Original languageEnglish
JournalDental Traumatology
Volume33
Issue number4
Pages (from-to)307-316
Number of pages10
ISSN1600-4469
DOIs
Publication statusPublished - Aug 2017

    Research areas

  • Journal Article

ID: 52782567