{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T10:33:08Z","timestamp":1780482788209,"version":"3.54.1"},"reference-count":54,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective:\u2002<\/jats:title>\n                    <jats:p>To compare, through cone-beam computed tomography (CBCT), the root resorption and treatment efficiency of two different mini-implant-assisted modalities in intruding the maxillary incisors.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods:\u2002<\/jats:title>\n                    <jats:p>\n                      Thirty-two adults who had deep bite and elongated maxillary incisors were randomly allocated to two groups: anterior mini-implant group (AMG) and posterior mini-implant group (PMG). In the AMG, approximately 40 g of force was applied per side with elastic chains from mini-implants placed between the lateral incisors and canines and in the PMG, with beta-titanium wires from mini-implants placed between the second premolars and first molars. This study was conducted on CBCT scans taken before intrusion and after 4 months of intrusion. Data were analyzed by means of a paired\n                      <jats:italic>t<\/jats:italic>\n                      -test, independent\n                      <jats:italic>t<\/jats:italic>\n                      -test, and Pearson\u2019s correlation test.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:\u2002<\/jats:title>\n                    <jats:p>\n                      One patient was excluded from the AMG due to mini-implant loosening. While the incisors showed a significant reduction in length and volume, this amount was greater in the AMG, especially in the central incisors (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .05). Together with the mean intrusion rates of 0.62 and 0.39 mm\/mo in the AMG and PMG respectively, the center of resistance of the incisors showed distal movement with labial tipping; these changes were greater in the PMG (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001). Volumetric root resorption was correlated with the amount of intrusion (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:\u2002<\/jats:title>\n                    <jats:p>Intrusion anchoring from posterior mini-implants is preferred in cases of upright incisors, as the use of such mechanics directs the roots into the spongiosa where they undergo less root resorption and more labial tipping.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2319\/085015-571.1","type":"journal-article","created":{"date-parts":[[2016,1,7]],"date-time":"2016-01-07T12:52:30Z","timestamp":1452171150000},"page":"746-752","source":"Crossref","is-referenced-by-count":28,"title":["Comparison of anterior and posterior mini-implant-assisted maxillary incisor intrusion: Root resorption and treatment efficiency"],"prefix":"10.2319","volume":"86","author":[{"given":"Isil","family":"Aras","sequence":"first","affiliation":[{"name":"Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ali V.","family":"Tuncer","sequence":"additional","affiliation":[{"name":"Professor, Department of Orthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i0003-3219-86-5-746-r1","series-title":"Semin Orthod","first-page":"26","article-title":"Biomechanics of deep overbite correction","volume":"7","author":"Burstone\n              CJ.","year":"2001","unstructured":"Burstone\n              CJ.\n            \n          \n          Biomechanics of deep overbite correction. Semin Orthod. 2001;7:26\u201333."},{"key":"i0003-3219-86-5-746-r2","series-title":"Am J Orthod Dentofacial Orthop","first-page":"658","article-title":"Influence of buccal segment size on prevention of side effects from incisor intrusion","volume":"129","author":"van Steenbergen\n              E,","year":"2006","unstructured":"van Steenbergen\n              E, \n            \n              Burstone\n              CJ, \n            \n              Prahl-Andersen\n              B, \n            \n              Aartman\n              IH.\n            \n          \n          Influence of buccal segment size on prevention of side effects from incisor intrusion. Am J Orthod Dentofacial Orthop. 2006;129:658\u2013665."},{"key":"i0003-3219-86-5-746-r3","series-title":"Am J Orthod Dentofacial Orthop","first-page":"723","article-title":"Treatment effects of intrusion arches and mini-implant systems in deepbite patients","volume":"141","author":"Senisik\n              NE,","year":"2012","unstructured":"Senisik\n              NE, \n            \n              Turkkahraman\n              H.\n            \n          \n          Treatment effects of intrusion arches and mini-implant systems in deepbite patients. Am J Orthod Dentofacial Orthop. 2012;141:723\u2013733."},{"key":"i0003-3219-86-5-746-r4","series-title":"Am J Orthod Dentofacial Orthop","first-page":"526","article-title":"Comparison of the intrusive effects of miniscrews and utility arches","volume":"139","author":"Polat-Ozsoy\n              O,","year":"2011","unstructured":"Polat-Ozsoy\n              O, \n            \n              Arman-Ozcirpici\n              A, \n            \n              Veziroglu\n              F, \n            \n              Cetinsahin\n              A.\n            \n          \n          Comparison of the intrusive effects of miniscrews and utility arches. Am J Orthod Dentofacial Orthop. 2011;139:526\u2013532."},{"key":"i0003-3219-86-5-746-r5","series-title":"Angle Orthod","first-page":"444","article-title":"A mini-implant for orthodontic anchorage in a deep overbite case","volume":"75","author":"Ohnishi\n              H,","year":"2005","unstructured":"Ohnishi\n              H, \n            \n              Yagi\n              T, \n            \n              Yasuda\n              Y, \n            \n              Takada\n              K.\n            \n          \n          A mini-implant for orthodontic anchorage in a deep overbite case. Angle Orthod. 2005;75:444\u2013452."},{"key":"i0003-3219-86-5-746-r6","series-title":"Am J Orthod Dentofacial Orthop","first-page":"676","article-title":"Correction of deep overbite and gummy smile by using a mini-implant with a segmented wire in a growing Class II division 2 patient","volume":"130","author":"Kim\n              TW,","year":"2006","unstructured":"Kim\n              TW, \n            \n              Kim\n              H, \n            \n              Lee\n              SJ.\n            \n          \n          Correction of deep overbite and gummy smile by using a mini-implant with a segmented wire in a growing Class II division 2 patient. Am J Orthod Dentofacial Orthop. 2006;130:676\u2013685."},{"key":"i0003-3219-86-5-746-r7","series-title":"Am J Orthod Dentofacial Orthop","first-page":"654","article-title":"Comparison of the intrusion effects on the maxillary incisors between implant anchorage and J-hook headgear","volume":"133","author":"Deguchi\n              T,","year":"2008","unstructured":"Deguchi\n              T, \n            \n              Murakami\n              T, \n            \n              Kuroda\n              S, \n            \n              Yabuuchi\n              T, \n            \n              Kamioka\n              H, \n            \n              Takano-Yamamoto\n              T.\n            \n          \n          Comparison of the intrusion effects on the maxillary incisors between implant anchorage and J-hook headgear. Am J Orthod Dentofacial Orthop. 2008;133:654\u2013660."},{"key":"i0003-3219-86-5-746-r8","series-title":"J Orthod","first-page":"79","article-title":"Mini-implants for en masse intrusion of maxillary anterior teeth in a severe Class II division 2 malocclusion","volume":"35","author":"Upadhyay\n              M,","year":"2008","unstructured":"Upadhyay\n              M, \n            \n              Nagaraj\n              K, \n            \n              Yadav\n              S, \n            \n              Saxena\n              R.\n            \n          \n          Mini-implants for en masse intrusion of maxillary anterior teeth in a severe Class II division 2 malocclusion. J Orthod. 2008;35:79\u201389."},{"key":"i0003-3219-86-5-746-r9","series-title":"Eur J Orthod","first-page":"412","article-title":"Miniscrews for upper incisor intrusion","volume":"31","author":"Polat-Ozsoy\n              O,","year":"2009","unstructured":"Polat-Ozsoy\n              O, \n            \n              Arman-Ozcirpici\n              A, \n            \n              Veziroglu\n              F.\n            \n          \n          Miniscrews for upper incisor intrusion. Eur J Orthod. 2009;31:412\u2013416."},{"key":"i0003-3219-86-5-746-r10","series-title":"Am J Orthod Dentofacial Orthop","first-page":"639","article-title":"Physical properties of root cementum: part 8","volume":"130","author":"Harris\n              DA,","year":"2006","unstructured":"Harris\n              DA, \n            \n              Jones\n              AS, \n            \n              Darendeliler\n              MA.\n            \n          \n          Physical properties of root cementum: part 8. Volumetric analysis of root resorption craters after application of controlled intrusive light and heavy orthodontic forces:a microcomputed tomography scan study. Am J Orthod Dentofacial Orthop. 2006;130:639\u2013647."},{"key":"i0003-3219-86-5-746-r11","series-title":"Eur J Orthod","first-page":"35","article-title":"Ultrastructure of cementum and periodontal ligament after continuous intrusion in humans: a transmission electron microscopy study","volume":"23","author":"Faltin\n              RM,","year":"2001","unstructured":"Faltin\n              RM, \n            \n              Faltin\n              K, \n            \n              Sander\n              FG, \n            \n              Arana-Chavez\n              VE.\n            \n          \n          Ultrastructure of cementum and periodontal ligament after continuous intrusion in humans: a transmission electron microscopy study. Eur J Orthod. 2001;23:35\u201349."},{"key":"i0003-3219-86-5-746-r12","series-title":"Angle Orthod","first-page":"912","article-title":"Root resorption after orthodontic intrusion and extrusion: an intraindividual study","volume":"75","author":"Han\n              G,","year":"2005","unstructured":"Han\n              G, \n            \n              Huang\n              S, \n            \n              Von den Hoff\n              JW, \n            \n              Zeng\n              X, \n            \n              Kuijpers-Jagtman\n              AM.\n            \n          \n          Root resorption after orthodontic intrusion and extrusion: an intraindividual study. Angle Orthod. 2005;75:912\u2013918."},{"key":"i0003-3219-86-5-746-r13","series-title":"J Appl Oral Sci","first-page":"303","article-title":"Comparison between two tomographic sections in the diagnosis of external root resorption","volume":"18","author":"Lermen\n              CA,","year":"2010","unstructured":"Lermen\n              CA, \n            \n              Liedke\n              GS, \n            \n              da Silveira\n              HE, \n            \n              da Silveira\n              HL, \n            \n              Mazzola\n              AA, \n            \n              de Figueiredo\n              JA.\n            \n          \n          Comparison between two tomographic sections in the diagnosis of external root resorption. J Appl Oral Sci. 2010;18:303\u2013307."},{"key":"i0003-3219-86-5-746-r14","series-title":"Dentomaxillofac Radiol","first-page":"393","article-title":"Diagnostic ability of computed tomography to evaluate external root resorption in vitro","volume":"36","author":"da Silveira\n              HL,","year":"2007","unstructured":"da Silveira\n              HL, \n            \n              Silveira\n              HE, \n            \n              Liedke\n              GS, \n            \n              Lermen\n              CA, \n            \n              Dos Santos\n              RB, \n            \n              de Figueiredo\n              JA.\n            \n          \n          Diagnostic ability of computed tomography to evaluate external root resorption in vitro. Dentomaxillofac Radiol. 2007;36:393\u2013396."},{"key":"i0003-3219-86-5-746-r15","series-title":"Am J Orthod Dentofacial Orthop","first-page":"212","article-title":"True incisor intrusion attained during orthodontic treatment: a systematic review and meta-analysis","volume":"128","author":"Ng\n              J,","year":"2005","unstructured":"Ng\n              J, \n            \n              Major\n              PW, \n            \n              Heo\n              G, \n            \n              Flores-Mir\n              C.\n            \n          \n          True incisor intrusion attained during orthodontic treatment: a systematic review and meta-analysis. Am J Orthod Dentofacial Orthop. 2005;128:212\u2013219."},{"key":"i0003-3219-86-5-746-r16","series-title":"Am J Orthod Dentofacial Orthop","first-page":"543","article-title":"An evaluation of root resorption incident to orthodontic intrusion","volume":"109","author":"Costopoulos\n              G,","year":"1996","unstructured":"Costopoulos\n              G, \n            \n              Nanda\n              R.\n            \n          \n          An evaluation of root resorption incident to orthodontic intrusion. 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Am J Orthod Dentofacial Orthop. 1986;90:321\u2013326."},{"key":"i0003-3219-86-5-746-r18","series-title":"Am J Orthod Dentofacial Orthop","first-page":"390","article-title":"A study of the relationship between incisor intrusion and root shortening","volume":"96","author":"McFadden\n              WM,","year":"1989","unstructured":"McFadden\n              WM, \n            \n              Engstrom\n              C, \n            \n              Engstrom\n              H, \n            \n              Anholm\n              JM.\n            \n          \n          A study of the relationship between incisor intrusion and root shortening. Am J Orthod Dentofacial Orthop. 1989;96:390\u2013396."},{"key":"i0003-3219-86-5-746-r19","series-title":"J Oral Biol Craniofac Res","first-page":"186","article-title":"A comparative study of different intrusion methods and their effect on maxillary incisors","volume":"4","author":"Goel\n              P,","year":"2014","unstructured":"Goel\n              P, \n            \n              Tandon\n              R, \n            \n              Agrawal\n              KK.\n            \n          \n          A comparative study of different intrusion methods and their effect on maxillary incisors. J Oral Biol Craniofac Res. 2014;4:186\u2013191."},{"key":"i0003-3219-86-5-746-r20","series-title":"Fortschr Kieferorthop","first-page":"16","article-title":"Intrusion of the anterior teeth with the segmented-arch technic of Burstone\u2014a clinical study","volume":"53","author":"Goerigk\n              B,","year":"1992","unstructured":"Goerigk\n              B, \n            \n              Diedrich\n              P, \n            \n              Wehrbein\n              H.\n            \n          \n          Intrusion of the anterior teeth with the segmented-arch technic of Burstone\u2014a clinical study. Fortschr Kieferorthop. 1992;53:16\u201325."},{"key":"i0003-3219-86-5-746-r21","series-title":"Int Endod J","first-page":"136","article-title":"Diagnostic accuracy of small volume cone beam computed tomography and intraoral periapical radiography for the detection of simulated external inflammatory root resorption","volume":"44","author":"Durack\n              C,","year":"2011","unstructured":"Durack\n              C, \n            \n              Patel\n              S, \n            \n              Davies\n              J, \n            \n              Wilson\n              R, \n            \n              Mannocci\n              F.\n            \n          \n          Diagnostic accuracy of small volume cone beam computed tomography and intraoral periapical radiography for the detection of simulated external inflammatory root resorption. Int Endod J. 2011;44:136\u2013147."},{"key":"i0003-3219-86-5-746-r22","series-title":"Int Endod J","first-page":"831","article-title":"The detection and management of root resorption lesions using intraoral radiography and cone beam computed tomography\u2014an in vivo investigation","volume":"42","author":"Patel\n              S,","year":"2009","unstructured":"Patel\n              S, \n            \n              Dawood\n              A, \n            \n              Wilson\n              R, \n            \n              Horner\n              K, \n            \n              Mannocci\n              F.\n            \n          \n          The detection and management of root resorption lesions using intraoral radiography and cone beam computed tomography\u2014an in vivo investigation. Int Endod J. 2009;42:831\u2013838."},{"key":"i0003-3219-86-5-746-r23","series-title":"Am J Orthod Dentofacial Orthop","first-page":"100","article-title":"Accuracy and reliability of tooth and root lengths measured on cone-beam computed tomographs","volume":"137","author":"Sherrard\n              JF,","year":"2010","unstructured":"Sherrard\n              JF, \n            \n              Rossouw\n              PE, \n            \n              Benson\n              BW, \n            \n              Carrillo\n              R, \n            \n              Buschang\n              PH.\n            \n          \n          Accuracy and reliability of tooth and root lengths measured on cone-beam computed tomographs. 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Am J Orthod Dentofacial Orthop. 2006;130:19\u201327."},{"key":"i0003-3219-86-5-746-r25","series-title":"Orthod Craniofac Res","first-page":"206","article-title":"Accuracy of volumetric measurement of teeth in vivo based on cone beam computer tomography","volume":"14","author":"Wang\n              Y,","year":"2011","unstructured":"Wang\n              Y, \n            \n              He\n              S, \n            \n              Yu\n              L, \n            \n              Li\n              J, \n            \n              Chen\n              S.\n            \n          \n          Accuracy of volumetric measurement of teeth in vivo based on cone beam computer tomography. 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Angle Orthod. 1987;57:279\u2013289."},{"key":"i0003-3219-86-5-746-r1","series-title":"Semin Orthod","first-page":"26","article-title":"Biomechanics of deep overbite correction","volume":"7","author":"Burstone\n              CJ.","year":"2001","unstructured":"Burstone\n              CJ.\n            \n          \n          Biomechanics of deep overbite correction. Semin Orthod. 2001;7:26\u201333."},{"key":"i0003-3219-86-5-746-r2","series-title":"Am J Orthod Dentofacial Orthop","first-page":"658","article-title":"Influence of buccal segment size on prevention of side effects from incisor intrusion","volume":"129","author":"van Steenbergen\n              E,","year":"2006","unstructured":"van Steenbergen\n              E, \n            \n              Burstone\n              CJ, \n            \n              Prahl-Andersen\n              B, \n            \n              Aartman\n              IH.\n            \n          \n          Influence of buccal segment size on prevention of side effects from incisor intrusion. Am J Orthod Dentofacial Orthop. 2006;129:658\u2013665."},{"key":"i0003-3219-86-5-746-r3","series-title":"Am J Orthod Dentofacial Orthop","first-page":"723","article-title":"Treatment effects of intrusion arches and mini-implant systems in deepbite patients","volume":"141","author":"Senisik\n              NE,","year":"2012","unstructured":"Senisik\n              NE, \n            \n              Turkkahraman\n              H.\n            \n          \n          Treatment effects of intrusion arches and mini-implant systems in deepbite patients. Am J Orthod Dentofacial Orthop. 2012;141:723\u2013733."},{"key":"i0003-3219-86-5-746-r4","series-title":"Am J Orthod Dentofacial Orthop","first-page":"526","article-title":"Comparison of the intrusive effects of miniscrews and utility arches","volume":"139","author":"Polat-Ozsoy\n              O,","year":"2011","unstructured":"Polat-Ozsoy\n              O, \n            \n              Arman-Ozcirpici\n              A, \n            \n              Veziroglu\n              F, \n            \n              Cetinsahin\n              A.\n            \n          \n          Comparison of the intrusive effects of miniscrews and utility arches. Am J Orthod Dentofacial Orthop. 2011;139:526\u2013532."},{"key":"i0003-3219-86-5-746-r5","series-title":"Angle Orthod","first-page":"444","article-title":"A mini-implant for orthodontic anchorage in a deep overbite case","volume":"75","author":"Ohnishi\n              H,","year":"2005","unstructured":"Ohnishi\n              H, \n            \n              Yagi\n              T, \n            \n              Yasuda\n              Y, \n            \n              Takada\n              K.\n            \n          \n          A mini-implant for orthodontic anchorage in a deep overbite case. Angle Orthod. 2005;75:444\u2013452."},{"key":"i0003-3219-86-5-746-r6","series-title":"Am J Orthod Dentofacial Orthop","first-page":"676","article-title":"Correction of deep overbite and gummy smile by using a mini-implant with a segmented wire in a growing Class II division 2 patient","volume":"130","author":"Kim\n              TW,","year":"2006","unstructured":"Kim\n              TW, \n            \n              Kim\n              H, \n            \n              Lee\n              SJ.\n            \n          \n          Correction of deep overbite and gummy smile by using a mini-implant with a segmented wire in a growing Class II division 2 patient. Am J Orthod Dentofacial Orthop. 2006;130:676\u2013685."},{"key":"i0003-3219-86-5-746-r7","series-title":"Am J Orthod Dentofacial Orthop","first-page":"654","article-title":"Comparison of the intrusion effects on the maxillary incisors between implant anchorage and J-hook headgear","volume":"133","author":"Deguchi\n              T,","year":"2008","unstructured":"Deguchi\n              T, \n            \n              Murakami\n              T, \n            \n              Kuroda\n              S, \n            \n              Yabuuchi\n              T, \n            \n              Kamioka\n              H, \n            \n              Takano-Yamamoto\n              T.\n            \n          \n          Comparison of the intrusion effects on the maxillary incisors between implant anchorage and J-hook headgear. Am J Orthod Dentofacial Orthop. 2008;133:654\u2013660."},{"key":"i0003-3219-86-5-746-r8","series-title":"J Orthod","first-page":"79","article-title":"Mini-implants for en masse intrusion of maxillary anterior teeth in a severe Class II division 2 malocclusion","volume":"35","author":"Upadhyay\n              M,","year":"2008","unstructured":"Upadhyay\n              M, \n            \n              Nagaraj\n              K, \n            \n              Yadav\n              S, \n            \n              Saxena\n              R.\n            \n          \n          Mini-implants for en masse intrusion of maxillary anterior teeth in a severe Class II division 2 malocclusion. J Orthod. 2008;35:79\u201389."},{"key":"i0003-3219-86-5-746-r9","series-title":"Eur J Orthod","first-page":"412","article-title":"Miniscrews for upper incisor intrusion","volume":"31","author":"Polat-Ozsoy\n              O,","year":"2009","unstructured":"Polat-Ozsoy\n              O, \n            \n              Arman-Ozcirpici\n              A, \n            \n              Veziroglu\n              F.\n            \n          \n          Miniscrews for upper incisor intrusion. Eur J Orthod. 2009;31:412\u2013416."},{"key":"i0003-3219-86-5-746-r10","series-title":"Am J Orthod Dentofacial Orthop","first-page":"639","article-title":"Physical properties of root cementum: part 8","volume":"130","author":"Harris\n              DA,","year":"2006","unstructured":"Harris\n              DA, \n            \n              Jones\n              AS, \n            \n              Darendeliler\n              MA.\n            \n          \n          Physical properties of root cementum: part 8. Volumetric analysis of root resorption craters after application of controlled intrusive light and heavy orthodontic forces:a microcomputed tomography scan study. Am J Orthod Dentofacial Orthop. 2006;130:639\u2013647."},{"key":"i0003-3219-86-5-746-r11","series-title":"Eur J Orthod","first-page":"35","article-title":"Ultrastructure of cementum and periodontal ligament after continuous intrusion in humans: a transmission electron microscopy study","volume":"23","author":"Faltin\n              RM,","year":"2001","unstructured":"Faltin\n              RM, \n            \n              Faltin\n              K, \n            \n              Sander\n              FG, \n            \n              Arana-Chavez\n              VE.\n            \n          \n          Ultrastructure of cementum and periodontal ligament after continuous intrusion in humans: a transmission electron microscopy study. Eur J Orthod. 2001;23:35\u201349."},{"key":"i0003-3219-86-5-746-r12","series-title":"Angle Orthod","first-page":"912","article-title":"Root resorption after orthodontic intrusion and extrusion: an intraindividual study","volume":"75","author":"Han\n              G,","year":"2005","unstructured":"Han\n              G, \n            \n              Huang\n              S, \n            \n              Von den Hoff\n              JW, \n            \n              Zeng\n              X, \n            \n              Kuijpers-Jagtman\n              AM.\n            \n          \n          Root resorption after orthodontic intrusion and extrusion: an intraindividual study. Angle Orthod. 2005;75:912\u2013918."},{"key":"i0003-3219-86-5-746-r13","series-title":"J Appl Oral Sci","first-page":"303","article-title":"Comparison between two tomographic sections in the diagnosis of external root resorption","volume":"18","author":"Lermen\n              CA,","year":"2010","unstructured":"Lermen\n              CA, \n            \n              Liedke\n              GS, \n            \n              da Silveira\n              HE, \n            \n              da Silveira\n              HL, \n            \n              Mazzola\n              AA, \n            \n              de Figueiredo\n              JA.\n            \n          \n          Comparison between two tomographic sections in the diagnosis of external root resorption. 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