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 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

Genetic Factors in External Apical Root Resorption and Orthodontic Treatment

2004 ◽  
Vol 15 (2) ◽  
pp. 115-122 ◽  
Author(s):  
J.K. Hartsfield ◽  
E.T. Everett ◽  
R.A. Al-Qawasmi
Keyword(s):  
Orthodontic Treatment ◽  
Genetic Factors ◽  
Tooth Movement ◽  
Root Resorption ◽  
Interleukin 1 ◽  
Treatment Method ◽  
Bone Modeling ◽  
Apical Root Resorption ◽  
External Apical Root Resorption ◽  
Prolonged Stress

External apical root resorption (EARR) is a common sequela of orthodontic treatment, although it may also occur in the absence of orthodontic treatment. The degree and severity of EARR associated with orthodontic treatment are multifactorial, involving host and environmental factors. Genetic factors account for at least 50% of the variation in EARR. Variation in the Interleukin 1 beta gene in orthodontically treated individuals accounts for 15% of the variation in EARR. Historical and contemporary evidence implicates injury to the periodontal ligament and supporting structures at the site of root compression following the application of orthodontic force as the earliest event leading to EARR. Decreased IL-1β production in the case of IL-1B (+3953) allele 1 may result in relatively less catabolic bone modeling (resorption) at the cortical bone interface with the PDL, which may result in prolonged stress concentrated in the root of the tooth, triggering a cascade of fatigue-related events leading to root resorption. One mechanism of action for EARR may be mediated through impairment of alveolar resorption, resulting in prolonged stress and strain of the adjacent tooth root due to dynamic functional loads. Future estimation of susceptibility to EARR will likely require the analysis of a suite of genes, root morphology, skeleto-dental values, and the treatment method to be used—or essentially the amount of tooth movement planned for treatment.

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 Clinical and immunological studies of periodontal inflammatory complications at orthodontic treatment using fixed appliances

2014 ◽  
Vol 95 (1) ◽  
pp. 80-82
Author(s):  
G R Khaliullina ◽  
S L Blashkova
Keyword(s):  
Immune Response ◽  
Orthodontic Treatment ◽  
Inflammatory Diseases ◽  
Periodontal Diseases ◽  
Orthodontic Appliances ◽  
Periodontal Inflammation ◽  
Fixed Orthodontic Appliances ◽  
Fixed Appliances ◽  
Orthodontic Devices

The review of clinical and immunologic studies of periodontal inflammatory diseases is presented. At present, the most effective tools for treatment of malocclusions are fixed orthodontic appliances (dental braces), but the use of fixed appliances complicates the oral hygiene, predisposes to periodontal and gum inflammation. The rate of complications diagnosed during orthodontic treatment stays high. The principles of periodontal inflammatory diseases (gingivitis, periodontitis) treatment are closely related with the causes and mechanisms of periodontal inflammation. Patients who receive orthodontic treatment using braces should be treated as a group with a high risk for inflammatory periodontal diseases. The orthodontic devices stimulate the directed reorganization of periodontal structures achieving optimal aesthetic and functional standards. Physiology of periodontium restructuring is largely determined by the local and general health before, during and after the orthodontic treatment. This article surveys the mechanisms of periodontal damage, highlighting the important role of immune response. So far, only anecdotal descriptions of immune response on the stages of orthodontic treatment are published.

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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