scholarly journals External apical root resorption 6 months after initiation of orthodontic treatment: A randomized clinical trial comparing fixed appliances and orthodontic aligners

2021 ◽  
Vol 51 (5) ◽  
pp. 329-336
Author(s):  
Katia Cristina Toyokawa-Sperandio ◽  
Ana Cláudia de Castro Ferreira Conti ◽  
Thais Maria Freire Fernandes ◽  
Renata Rodrigues de Almeida-Pedrin ◽  
Marcio Rodrigues de Almeida ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Apical Root Resorption ◽  
External Apical Root Resorption ◽  
Fixed Appliances

scholarly journals Orthodontically induced external apical root resorption in patients treated with fixed appliances vs removable aligners

2016 ◽  
Vol 87 (1) ◽  
pp. 3-10 ◽  
Author(s):  
Alejandro Iglesias-Linares ◽  
Boris Sonnenberg ◽  
Beatriz Solano ◽  
Rosa-Maria Yañez-Vico ◽  
Enrique Solano ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Genetic Factors ◽  
Root Resorption ◽  
Sagittal Plane ◽  
Conditional Logistic Regression ◽  
Orthodontic Appliances ◽  
Apical Root Resorption ◽  
Fixed Orthodontic Appliances ◽  
External Apical Root Resorption ◽  
Fixed Appliances

ABSTRACT Objective: To determine whether orthodontic treatment with removable aligners vs fixed orthodontic appliances is associated with a different frequency of orthodontically induced external apical root resorption (OIEARR) when genetic, radiographic, and clinical factors are accounted for. Materials and Methods: Three hundred seventy-two orthodontic patients treated with removable aligners (Invisalign) or fixed appliances were genetically screened for interleukin 1B gene (IL1B) (rs1143634), interleukin 1 receptor antagonist gene (IL1RN) (rs419598), and osteopontin gene (SPP1) (rs9138/rs11730582). Twelve clinical variables, potentially associated with OIEARR, were also considered. Subjects were divided according to the presence of radiographically determined OIEARR (>2 mm). The association between OIEARR and appliance type, and radiographic, clinical and genetic factors, was assessed using backward stepwise conditional logistic regression. Odds ratios (ORs) and 95% confidence intervals (CIs) were reported. Results: Reliability of the methods was adequate. Clinical case complexity (American Board of Orthodontics [ABO] Discrepancy Index) (OR: 1.032; 95% CI: 1.005–1.061; P = .021) and extent of incisor apical displacement in the sagittal plane (OR: 1.478; 95% CI: 1.285–1.699; P = .001) were associated with an increased OIEARR risk. After adjusting for associations between clinical/radiographic/genetic factors, there were no statistically significant differences with respect to OIEARR or type of orthodontic appliance used, whether removable aligners or fixed appliances (OR: 1.662; 95% CI: 0.945–2.924; P = .078). Only subjects homozygous for the T allele of IL1RN (rs419598) were more prone to OIEARR during orthodontic treatment (OR: 3.121; CI: 1.93–5.03; P < .001). Conclusions: A similar OIEARR predisposition was identified using either removable aligners (Invisalign) or fixed appliances.

scholarly journals External apical root resorption in maxillary root-filled incisors after orthodontic treatment: A split-mouth design study

2012 ◽  
pp. e523-e527 ◽  
Author(s):  
JM. Llamas-Carreras ◽  
A. Amarilla ◽  
E. Espinar-Escalona ◽  
L. Castellanos-Cosano ◽  
J. Martin-Gonzalez ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Root Resorption ◽  
Design Study ◽  
Apical Root Resorption ◽  
External Apical Root Resorption

scholarly journals Comparison of Apical Root Resorption encountered during Maxillary Incisor retraction using Stainless Steel Boot Loop and TMA Boot Loop – A Case Series

2016 ◽  
Vol 6 (1) ◽  
pp. 45-48
Author(s):  
Gaurav Gupta ◽  
Raj Kumar Singh ◽  
Ashima Relhan ◽  
Gurkeerat Singh ◽  
Abhishek Goyal
Keyword(s):  
Stainless Steel ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Case Series ◽  
Maxillary Incisor ◽  
Apical Root Resorption ◽  
Incisor Retraction ◽  
External Apical Root Resorption

External apical root resorption (EARR) is probably the most common iatrogenic sequel of orthodontic treatment. The present case series focuses on the incisor retraction using frictionless mechanics. Boot loop made up of .019x.025 Stainless steel or TMA archwire were used for maxillary incisor retraction. Retraction with stainless steel boot loop showed greater root resorption as compared to TMA boot loop.Orthodontic Journal of Nepal, Vol. 6 No. 1, June 2016, pp.45-48 

scholarly journals Lower Incisor Root Resorption after Orthodontic Alignment and Leveling

2019 ◽  
Vol 21 (5) ◽  
pp. 494-499
Author(s):  
Ângela Graciela Deliga Schroder ◽  
Mariana Gonzaga Erthal Ribeiro ◽  
Alyssa Sales dos Santos ◽  
Amaro Ilidio Vespasiano Silva ◽  
Flavio Ricardo Manzi
Keyword(s):  
Orthodontic Treatment ◽  
Root Resorption ◽  
Positive Association ◽  
Time Interval ◽  
Bone Maturation ◽  
Lower Incisor ◽  
Apical Root Resorption ◽  
External Root Resorption ◽  
External Apical Root Resorption ◽  
Severe Degree

AbstractThe objective of this study was to evaluate the external apical root resorption in the lower incisors after orthodontic alignment and leveling using digital periapical radiographs. The sample consisted of periapical radiographs of 90 lower central incisors from 45 patients, 19 men and 26 women aged 12-36 years (mean 22.7 years). All the 90 lower central incisors were performed periapical radiographs in two phases: 1 - initial before orthodontic treatment and 2 - after alignment and dental leveling phase. The initial periapical radiographs were digitized through a transparency scanner. All patients were treated by the same orthodontist, the inclusion criteria were: never having been treated orthodontically; absence of exodontia, agenesis, malformation or defect in teeth, supernumerary teeth, endodontic treatment and impacted incisors. The time interval between the initial and post-leveling radiographs was from 6 to 12 months, with an average time of 9 months. It was observed that 47.8% of the incisors evaluated presented external apical root resorption, being most grade 1 (irregular contour up to 1 mm reabsorption). There was a positive association of external root resorption with the triangular root shape. There was no association between the severity of root resorption and the type of malocclusion.   An association was observed between age and resorption severity, that is, patients who have already reached bone maturation were more likely to develop apical external root resorption. Female patients were more likely, but when men developed external root resorption, it tended to be a more severe degree. Female adult patients, with a triangular root shape, anatomical apical pipette shape, regardless of malocclusion type are more likely to develop apical external root resorption in orthodontic treatment. Keywords: Radiography, Dental, Digital. Orthodontic. Root Resorption. Resumo Esse estudo teve como objetivo avaliar a reabsorção radicular apical externa nos incisivos inferiores após  alinhamento e nivelamento ortodôntico com radiografias periapicais digitais. A amostra consistiu de 90 radiografias periapicais de incisivos centrais inferiores de 45 pacientes, sendo 19 homens e 26 mulheres com idade entre 12 e 36 anos (média de 22,7 anos). As radiografias periapicais foram realizadas em dois momentos: 1 - inicial antes do tratamento ortodôntico e 2 - após fase de alinhamento e nivelamento dentário. Todas as radiografias foram digitalizadas através de um scanner de transparência. Todos os pacientes foram tratados pelo mesmo ortodontista e preenchiam os seguintes critérios de inclusão: não ter sido tratado ortodonticamente anteriormente; ausência de exodontia, agenesia, malformação ou defeito nos dentes, dentes supranumerários, tratamento endodôntico e incisivos impactados. O intervalo de tempo entre as radiografias inicial e pós-nivelamento foi de 6 a 12 meses, com tempo médio de 9 meses. Observou-se que 47,8% dos incisivos avaliados apresentaram reabsorção radicular apical externa, sendo a maioria de grau 1 (contorno irregular até reabsorção de 1 mm). Houve associação positiva da reabsorção radicular externa com a forma da raiz triangular. Não houve associação entre a gravidade da reabsorção radicular e o tipo de má oclusão. Observou-se associação entre idade e gravidade da reabsorção, ou seja, pacientes que já atingiram a maturação óssea apresentaram maior chance de desenvolver reabsorção radicular externa apical. Pacientes do sexo feminino foram mais frequentes, mas quando os homens desenvolveram reabsorção radicular externa, tenderam a ser mais graves. Um  paciente adulto, do sexo feminino, com formato de raiz triangular, região apical na forma anatômica de pipeta, independentemente do tipo de má oclusão, tem maior probabilidade de desenvolver reabsorção radicular externa no tratamento ortodôntico. Palavras-chave: Radiografia Dentária Digital. Ortodontia. Reabsorção da Raiz. 

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