scholarly journals Particularities of orthodontic treatment in patients with external root resorption of traumatic cause – theoretical foundation

2017 ◽  
Vol 63 (3) ◽  
pp. 124-127
Author(s):  
Anca Nicoleta Temelcea ◽  
◽  
Paula Perlea ◽  
Irina Maria Gheorghiu ◽  
Alexandru Iliescu ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Theoretical Foundation ◽  
Root Resorption ◽  
Extreme Caution ◽  
External Root Resorption ◽  
Orthodontic Forces

The therapy of dento-maxillary annomalies involves the use of orthodontic forces acting on the teeth, periodontium and alveolar bone, producing changes in their structure, resulting in final dental movement. The application of orthodontic forces should be done with extreme caution to avoid the occurrence of traumatic root resorption or aggravation when acting on a weak ground. The article aims to identify the particularities of orthodontic treatment in the etiology of external traumatic root resorbtions.

scholarly journals Is Inflammation a Friend or Foe for Orthodontic Treatment?: Inflammation in Orthodontically Induced Inflammatory Root Resorption and Accelerating Tooth Movement

2021 ◽  
Vol 22 (5) ◽  
pp. 2388
Author(s):  
Masaru Yamaguchi ◽  
Shinichi Fukasawa
Keyword(s):  
Inflammatory Mediators ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Tooth Movement ◽  
Root Resorption ◽  
Orthodontic Tooth Movement ◽  
Tnf Α ◽  
Orthodontic Forces ◽  
Necrosis Factor

The aim of this paper is to provide a review on the role of inflammation in orthodontically induced inflammatory root resorption (OIIRR) and accelerating orthodontic tooth movement (AOTM) in orthodontic treatment. Orthodontic tooth movement (OTM) is stimulated by remodeling of the periodontal ligament (PDL) and alveolar bone. These remodeling activities and tooth displacement are involved in the occurrence of an inflammatory process in the periodontium, in response to orthodontic forces. Inflammatory mediators such as prostaglandins (PGs), interleukins (Ils; IL-1, -6, -17), the tumor necrosis factor (TNF)-α superfamily, and receptor activator of nuclear factor (RANK)/RANK ligand (RANKL)/osteoprotegerin (OPG) are increased in the PDL during OTM. OIIRR is one of the accidental symptoms, and inflammatory mediators have been detected in resorbed roots, PDL, and alveolar bone exposed to heavy orthodontic force. Therefore, these inflammatory mediators are involved with the occurrence of OIIRR during orthodontic tooth movement. On the contrary, regional accelerating phenomenon (RAP) occurs after fractures and surgery such as osteotomies or bone grafting, and bone healing is accelerated by increasing osteoclasts and osteoblasts. Recently, tooth movement after surgical procedures such as corticotomy, corticision, piezocision, and micro-osteoperforation might be accelerated by RAP, which increases the bone metabolism. Therefore, inflammation may be involved in accelerated OTM (AOTM). The knowledge of inflammation during orthodontic treatment could be used in preventing OIIRR and AOTM.

scholarly journals Predisposing factors to severe external root resorption associated to orthodontic treatment

2013 ◽  
Vol 18 (1) ◽  
pp. 110-120 ◽  
Author(s):  
Gracemia Vasconcelos Picanço ◽  
Karina Maria Salvatore de Freitas ◽  
Rodrigo Hermont Cançado ◽  
Fabricio Pinelli Valarelli ◽  
Paulo Roberto Barroso Picanço ◽  
...  
Keyword(s):  
Root Length ◽  
Orthodontic Treatment ◽  
Alveolar Bone ◽  
Root Resorption ◽  
Treatment Time ◽  
Predisposing Factors ◽  
Crown Root ◽  
External Root Resorption ◽  
Lateral Cephalograms ◽  
Maxillary Incisors

OBJECTIVE: The aim of this study was to evaluate predisposing factors among patients who developed moderate or severe external root resorption (Malmgren's grades 3 and 4), on the maxillary incisors, during fixed orthodontic treatment in the permanent dentition. METHODS: Ninety-nine patients who underwent orthodontic treatment with fixed edgewise appliances were selected. Patients were divided into two groups: G1 - 50 patients with no root resorption or presenting only apical irregularities (Malmgren's grades 0 and 1) at the end of the treatment, with mean initial age of 16.79 years and mean treatment time of 3.21 years; G2 - 49 patients presenting moderate or severe root resorption (Malmgren's grades 3 and 4) at the end of treatment on the maxillary incisors, with mean initial age of 19.92 years and mean treatment time of 3.98 years. Periapical radiographs and lateral cephalograms were evaluated. Factors that could influence the occurrence of severe root resorption were also recorded. Statistical analysis included chi-square tests, Fisher's exact test and independent t tests. RESULTS: The results demonstrated significant difference between the groups for the variables: Extractions, initial degree of root resorption, root length and crown/root ratio at the beginning, and cortical thickness of the alveolar bone. CONCLUSION: It can be concluded that: Presence of root resorption before the beginning of treatment, extractions, reduced root length, decreased crown/root ratio and thin alveolar bone represent risk factors for severe root resorption in maxillary incisors during orthodontic treatment.

Dental Abnormalities, Bone Graft Quality, and Periodontal Conditions in Patients with Unilateral Cleft Lip and Palate at Different Phases of Orthodontic Treatment

2003 ◽  
Vol 40 (4) ◽  
pp. 343-350 ◽  
Author(s):  
G. Dewinter ◽  
M. Quirynen ◽  
K. Heidbüchel ◽  
A. Verdonck ◽  
G. Willems ◽  
...  
Keyword(s):  
Bone Graft ◽  
Bone Grafting ◽  
Orthodontic Treatment ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Root Resorption ◽  
Periodontal Condition ◽  
External Root Resorption ◽  
Dental Abnormalities

Objectives To evaluate the dental and periodontal condition of patients with unilateral cleft lip and palate (UCLP) before orthodontic treatment and evaluate whether the dental and periodontal condition of these patients during and after orthodontic treatment was jeopardized by the duration of the orthodontic and surgical treatment. Design Seventy-five individuals with UCLP (52 males, 23 females), between ages 8 and 20 years, participated in a retrospective study during their final follow-up visit with regard to dental abnormalities, such as hypodontia, external root resorption, crown and root malformation, and supernumerary teeth. Alveolar bone height and periodontal attachment loss on the cleft side were also screened before or after bone grafting and at different stages of orthodontic treatment. Results Hypodontia of the lateral incisor was found in more than 50% of the patients on the cleft side. Second premolars and/or lateral incisors outside the cleft area were missing in 27.2% of the patients. In 32%, malformations of the teeth near the cleft were noticed. In general, the teeth around and in the cleft of the patients showed normal septal bone heights and a healthy periodontium. Sixty of the 75 patients received a bone graft to restore the interrupted alveolar process. In 93.3% of these patients, the cleft was grafted before the eruption of the canine. Conclusion The periodontium of the teeth in and around the cleft in patients with UCLP observed during and after orthodontic treatment can cope relatively well with the long orthodontic treatment and combined surgical interventions. The children, who had not yet started treatment, also showed enough bone support and no periodontal problems of the teeth besides the cleft. Early secondary bone grafting seems to give optimal periodontal results.

scholarly journals Periodontally Accelerated Osteogenic Orthodontics : A Mini Review

2020 ◽  
pp. 11-15
Author(s):  
Janvi Mody ◽  
Dishani Jain ◽  
Shrey Mehta ◽  
Divya Bhat ◽  
Anjali Nagrik ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Conventional Treatment ◽  
Alveolar Bone ◽  
Tooth Movement ◽  
Root Resorption ◽  
Hard Tissue ◽  
Number Of Patients ◽  
Orthodontic Forces

With an increasing number of patients seeking orthodontic treatment, it often poses a challenge to the attending orthodontist to seek modalities that may promote accelerated tooth movement without compromising the underlying tissues and periodontium. Hence, PAOO (Periodontal accelerated osteogenic orthodontics was introduced in order to overcome current conventional treatment limitations. It seeks to combine selective bone corticotomy, hard tissue grafting along with the application of orthodontic forces, therefore promoting an increase in the width of the alveolar bone, lesser root resorption and lesser chair side appointments. This procedure aims at accelerating tooth movement and providing long-term improvement of the periodontium, decreased need for extractions, thereby augmenting gingival esthetics. The aim of this review was to summarize current literature regarding the role of PAOO in orthodontics.

scholarly journals Root Resorption in Orthodontic Treatment: Scoping Review

2018 ◽  
Vol 7 (2) ◽  
pp. 47-51
Author(s):  
Neeta Aryal ◽  
Mao Jing
Keyword(s):  
Scoping Review ◽  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Root Resorption ◽  
Orthodontic Tooth Movement ◽  
Conventional Radiography ◽  
Promising Tool ◽  
External Root Resorption ◽  
Long Time ◽  
Orthodontic Patients

Introduction: Root resorption is the loss of apical root tissue leading to the shortness of root which is often evident in orthodontic tooth movement. Proper management during orthodontic treatment however can minimize this undesirable outcome. The present article attempts to review the etiology of root resorption, methods of diagnosis, and strategies for prevention.Materials & Method: A scoping review was done with the purpose to carry out the narrative integration of the relevant evidences on root resorption and orthodontic treatment from the published literatures. The resulting papers were studied and reviewed thoroughly for the key explanation of root resorption in orthodontic patients. A total of 41 published research articles were reviewed.Discussion: According to the literatures root resorption is common iatrogenic outcome in orthodontic treatment. Biological, mechanical, and combined biological and mechanical factors result in external root resorption. Though most clinicians diagnose root resorption by conventional radiography, researches have clearly shown that CBCT is the promising tool. The clinicians need to counsel orthodontic patients and their parents that the root resorption might be a potential consequence of the treatment lasting for long time. In case of severity; it is essential to reassess the patient and minimize the underlying cause. It is necessary to understand the role of orthodontist in preventing root resorption

scholarly journals Rapid maxillary expansion: Do banded teeth develop more external root resorption than non-banded anchorage teeth?

2015 ◽  
Vol 86 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Débora C Martins ◽  
Bernardo Q Souki ◽  
Paula L Cheib ◽  
Gerluza A.B Silva ◽  
Igor D.G Reis ◽  
...  
Keyword(s):  
Root Resorption ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Maxillary Expansion ◽  
Orthodontic Anchorage ◽  
External Root Resorption ◽  
Significant Difference ◽  
Band Group ◽  
Orthodontic Forces ◽  
Root Surfaces

ABSTRACT Objective:  To compare external root resorption (ERR) when bands and wires are used as orthodontic anchorage during rapid maxillary expansion (RME). Materials and Methods:  Histologic analysis was performed on 108 sites from 18 maxillary first premolars and on 36 sites from six mandibular first premolars in nine subjects (mean age = 15.2 ± 1.4 years) 3 months after RME. Maxillary teeth were pooled into two groups (n = 54 each) according to the type of orthodontic anchorage (band group [BG] vs wire group [WG]). Anchorage type was randomly chosen in a split-mouth design. Mandibular first premolars, which were not subjected to orthodontic forces, were used as the control group (CG). Results:  All premolars in the BG and WG showed ERR at the level of the cementum and dentin. Repair with cementum cells was observed in all resorption areas, but complete repair was rarely found. No statistically significant difference was found between the BG and WG with regard to the ERR. No association was found between the root height position (middle or cervical third) and the incidence of ERR. Buccal root surfaces showed a higher amount of ERR compared with the palatal and interproximal surfaces. ERR was not found in any teeth in the CG. Conclusion:  All maxillary first premolars subjected to RME showed ERR and partial cementum repair. Banded teeth did not develop more ERR than nonbanded anchorage teeth.

scholarly journals Correlation Between Orthodontic Forces and Root Resorption – a Systematic Review of the Literature

2016 ◽  
Vol 1 (2) ◽  
pp. 142-145 ◽  
Author(s):  
Alexandru Vlasa ◽  
Lia Yero Eremie ◽  
Luminița Lazăr ◽  
Anamaria Bud ◽  
Mariana Păcurar ◽  
...  
Keyword(s):  
Systematic Review ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Previous History ◽  
Published Data ◽  
High Prevalence ◽  
History Of ◽  
External Apical Root Resorption ◽  
Orthodontic Forces ◽  
Apical Displacement

Abstract Orthodontically induced external apical root resorption (OIEARR) is a major concern regarding periodontal status after nonsurgical orthodontic treatment. The aim of this study was to assess this sequel by a systematic review of published data. For assessment, we performed an electronic search of one database for comprehensive data, using keywords in different combinations: “root resorption”, “periodontics” and “nonsurgical orthodontic treatment”. We supplemented the results searching by hand in published journals and we cross-referenced with the accessed articles. Patients included in the results presented a good general health status, with no previous history of OIEARR and no other associated pathologies. Finally, twenty-three studies were selected and included in this review. A high prevalence (69–98%) and moderate severity of OIEARR (<5 mm and <1/3 from original root length) were reported. No difference in root resorption was found regarding the sex of the patients. A moderate positive correlation between treatment duration and root resorption was found. Also, a mild correlation regarding antero-posterior apical displacement and root resorption was found.

scholarly journals External Root Resorption after Orthodontic Treatment with Invisalign®: A Retrospective Study

2020 ◽  
Vol 12 (11) ◽  
pp. 125
Author(s):  
Haya AlSagr ◽  
Shahd AlMujel ◽  
Sadeen AlShiha ◽  
Najlaa AlShathri ◽  
Deema AlShammary
Keyword(s):  
Retrospective Study ◽  
Orthodontic Treatment ◽  
Root Resorption ◽  
Root Apex ◽  
Post Treatment ◽  
Riyadh City ◽  
Crown Length ◽  
Anterior Teeth ◽  
External Root Resorption ◽  
Pre Treatment

AIM: To measure the incidence and severity of root resorption after orthodontic treatment with Invisalign. MATERIAL AND METHODS: This retrospective study was conducted at Riyadh, Saudi Arabia from June 2017 to January 2018. Pre- treatment and post-treatment Orthopantographs were obtained from orthodontic records of 29 patients managed with aligners (Invisalign&reg;, Align Technologies, Santa Clara, CA, USA) at different dental clinics in Riyadh City. The selected sample was fulfilled the following criteria: (1) Class I malocclusion, (2) Mild to moderate crowding, (3) Non-extraction orthodontic treatment, (3) No evidence of root resorption before orthodontic treatment, (4) No root abnormalities or dilaceration, and (5) Good quality of pre- and post-treatment Orthopantographs. One examiner performed the measurements directly on the Orthopantographs using electronic digital caliper (Mitutoyo Manufacturing Co. Ltd., Tokyo, Japan) with an accuracy of 0.01mm. The measurements were performed on maxillary and mandibular central incisors, lateral incisors, and canines pre- and post-operatively, resulting in a total of 696 measurements. The crown length was measured from incisal edge to cemento- enamel-junction, while the root length from cemento-enamel-junction to root apex. RESULTS: In our study, 72% of the teeth demonstrated root resorption, in regard to the severity of root resorption, we found that mild root resorption &gt; 0% up to 2% in all the affected teeth. Upper Anterior teeth have more significant resorption rate than lower anterior teeth P&lt;0.05. CONCLUSION: The present study showed that incidence of root resorption was high after orthodontic treatment with Invisalign&reg;, however the severity is very low and it is limited to the surface resorption only.

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