Assessment of Root Resorption and Root Shape by Periapical and Panoramic Radiographs: A Comparative Study

Abstract

Introduction:One of the common findings encountered by the clinician at the end of orthodontic treatment is the apical root resorption. Root resorption occurs to various degrees. A severe form of root resorption is characterized by shortening of root for more than 4 mm or more than one-third of the total tooth length. A low incidence rate of resorption is observed based on radiographic findings for the diagnosis of root resorption, panoramic radiography, and periapical radiography. Hence, we evaluated the accuracy of panoramic radiographic films for assessing the root resorption in comparison with the periapical films. Materials and methods:This study included the assessment of all the cases in which pre-and post-treatment radiographs were available for analysis of the assessment of the amount of root resorption. Complete records of 80 patients were analyzed. Examination of a total of 900 teeth was done. Mean age of the patients in this study was 21 years ranging from 11 to 38 years. The majority of the patients in the present study were females. All the treatments were carried out by registered experienced orthodontists having minimum experience of more than 10 years. All the cases were divided into two study groups. Group I comprised panoramic radiographic findings, while group II consisted of periapical radiographic findings. For the measurement of crown portion, root portion, and the complete root length, magnification loops of over 100 powers with parallax correction with inbuilt grids were used. Assessment of the tooth length and the crown length was done by the same observers. All the results were analyzed by Statistical Package for the Social Sciences software version 6.0.Results: Maximum amount of root resorption was observed in case of maxillary central incisors and canines among group I and II cases respectively. However, nonsignificant difference was obtained while comparing the mean root resorption in relation to maxillary incisors and canines among the two study groups. While comparing the overall value of root resorption among the two study groups, a significant difference was obtained. The maximum value of tooth length in both the groups was observed in cases of maxillary canines. Significant differences were observed while comparing the tooth length of various teeth among the two study groups. Among the deviated forms of root shape, dilaceration was the most common form of root shape detected in both the study groups. Conclusion:Periapical radiographs are more efficient in the assessment of the shape and resorption of the root.Clinical significance: Thorough evaluation of periapical radiographs is necessary for detection of even minute levels of root resorption.

Prevalence of Root Canal Treated Anteriors in Patients Seeking Orthodontic Treatment

“…Orthodontic tooth movement further must not degrade the condition of the endodontically treated teeth and therefore a more physiologic treatment mechanics must be involved in treating a patient with RC treated anteriors,as in most cases, the anteriors are the ones to be retracted for a longer distance.A sequential treatment protocol must be followed to ensure appropriate remodelling of the bone and the teeth. 28 Previously our team had conducted numerous clinical trials [29][30][31][32][33][34][35] and lab animal studies [36][37][38][39][40] and in-vitro [41][42][43] studies over the past 5 years.Now we are focusing on epidemiological studies .The idea for this study stemmed from the current interest in our community. Patients, since the beginning must be informed about the status of the endodontically treated teeth and be updated about the same during the course of treatment.A patient consent pertaining to the status of endodontically treated teeth must be obtained before initiating the treatment.…”

<p><strong> Resorpsi akar apikal eksternal gigi insisif rahang atas sesudah perawatan ortodonti pada kasus ekstraksi dan non ekstraksi maloklusi dentoskeletal kelas I</p></strong><em/><p><strong> External apical root resorption of maxillary incisors after class I dentoskeletal malocclusion orthodontic treatment in extraction and non-extraction cases </p></strong>

“…Radiografi panoramik memiliki tingkat keakuratan yang sedikit lebih rendah jika dibandingkan dengan radiografi periapikal dikarenakan faktor perbesarannya, namun tingkat ketidakakuratannya hanya berkisar 0,2 mm. 20,18 Radiografi panoramik merupakan salah satu pilihan metode yang dapat mengevaluasi resorpsi akar apikal eksternal dalam perawatan ortodonti. 21 Padjadjaran Journal of Dental Researchers and Students • Volume 7, Nomor 1, Bulan Februari Tahun 2023…”

Diagnóstico de reabsorção radicular

“…Esta é uma condição relativamente comum que, muitas vezes, resulta na perda dentária, devido à dificuldade de se impedir a sua progressão. Dentre os tipos de reabsorção, a externa apresenta maior prevalência 1,2 .…”

“…As reabsorções radiculares externas representam complicações indesejadas que podem ocorrer após um trauma, transplante dentário ou movimento ortodôntico dos dentes [1][2][3] . A detecção da reabsorção é dependente diretamente de sua visualização por meio de exames por imagens, já que a mesma comumente não apresenta sinal e sintoma clínicos.…”

“…A detecção da reabsorção é dependente diretamente de sua visualização por meio de exames por imagens, já que a mesma comumente não apresenta sinal e sintoma clínicos. Dentre os exames de imagens disponíveis, o exame radiográfi co periapical (PA), técnica de baixo nível de complexidade e de dose de radiação, acessível, é indicada para diagnóstico, prognóstico e acompanhamento da reabsorção radicular, consti tuindo etapa essencial para uma completa avaliação do dente exibindo inclusive maior efi ciência neste diagnósti co ao compararmos com o exame panorâmico 2 .…”