TY - JOUR
T1 - The risk of healing complications in primary teeth with concussion and subluxation injury
T2 - a retrospective cohort study
AU - Lauridsen, Eva
AU - Blanche, Paul
AU - Amaloo, Catherina
AU - Andreasen, Jens Ove
N1 - This article is protected by copyright. All rights reserved.
PY - 2017/10
Y1 - 2017/10
N2 - Background/Aim: Traumatic dental injuries 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), repair-related resorption (RRR), infection-related resorption (IRR), ankylosis-related resorption (ARR), and premature tooth loss (PTL) in primary teeth following concussion and subluxation injuries, and to identify possible risk factors for PN, PCO, and PTL following subluxation. Material and methods: The study was a retrospective analysis of a cohort comprising 31 patients (36 teeth) with concussion injury and 174 patients (241 teeth) with subluxation injury. No treatment was performed. The follow-up program included examination after 4 weeks, 8 weeks, 6 months, 1 year, and when the patients were 6 years of age. Minimum follow up was 1 year or until the time of tooth loss. Statistics: Kaplan-Meier and Aalen-Johansen methods and Cox regression analysis. Level of significance was set at 5%. Results: Risk estimated after one year. Concussion: PCO 8.6% (95% CI: 0-17.9), PN 5.7% (95% CI: 0-13.4), PTL 5.6% (95% CI: 0-13.4). Subluxation: PCO 23.2% (95% CI: 17.8-28.6), PN 8.3% (95% CI: 4.8-11.8), IRR 2.6% (95% CI: 0.5-4.6), PTL 9.5% (95% CI: 5.0-14.1). Most complications (95%) were diagnosed within the first year. Most cases of PN (65%) and PTL (85%) were seen in patients aged 4 years or more. Conclusion: Primary teeth with concussion or subluxation injury carry a low risk of PN and infection with periapical inflammation, root resorption, and PTL. Nearly all complications were diagnosed within the first year after the injury. The risk of PTL was highest in patients more than 4 years of age at the time of injury.
AB - Background/Aim: Traumatic dental injuries 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), repair-related resorption (RRR), infection-related resorption (IRR), ankylosis-related resorption (ARR), and premature tooth loss (PTL) in primary teeth following concussion and subluxation injuries, and to identify possible risk factors for PN, PCO, and PTL following subluxation. Material and methods: The study was a retrospective analysis of a cohort comprising 31 patients (36 teeth) with concussion injury and 174 patients (241 teeth) with subluxation injury. No treatment was performed. The follow-up program included examination after 4 weeks, 8 weeks, 6 months, 1 year, and when the patients were 6 years of age. Minimum follow up was 1 year or until the time of tooth loss. Statistics: Kaplan-Meier and Aalen-Johansen methods and Cox regression analysis. Level of significance was set at 5%. Results: Risk estimated after one year. Concussion: PCO 8.6% (95% CI: 0-17.9), PN 5.7% (95% CI: 0-13.4), PTL 5.6% (95% CI: 0-13.4). Subluxation: PCO 23.2% (95% CI: 17.8-28.6), PN 8.3% (95% CI: 4.8-11.8), IRR 2.6% (95% CI: 0.5-4.6), PTL 9.5% (95% CI: 5.0-14.1). Most complications (95%) were diagnosed within the first year. Most cases of PN (65%) and PTL (85%) were seen in patients aged 4 years or more. Conclusion: Primary teeth with concussion or subluxation injury carry a low risk of PN and infection with periapical inflammation, root resorption, and PTL. Nearly all complications were diagnosed within the first year after the injury. The risk of PTL was highest in patients more than 4 years of age at the time of injury.
U2 - 10.1111/edt.12342
DO - 10.1111/edt.12342
M3 - Journal article
C2 - 28371334
SN - 1600-4469
VL - 33
SP - 337
EP - 344
JO - Dental Traumatology
JF - Dental Traumatology
IS - 5
ER -