Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines

Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Kanavakis, Georgios [verfasserIn] Curran, Karen M Wiseman, Kevin C Barone, Nicholas P Finkelman, Matthew D Srinivasan, Sreedevi Lee, Moonyoung B Trotman, Caroll-Ann

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2015

Schlagwörter:	Palatally impacted canines Panoramic images Lateral incisor morphology Crown-to-root angulation

Anmerkung:	© Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (

Übergeordnetes Werk:	Enthalten in: Progress in orthodontics - Heidelberg : SpringerOpen, 2000, 16(2015), 1 vom: 26. Feb.
Übergeordnetes Werk:	volume:16 ; year:2015 ; number:1 ; day:26 ; month:02

Links:	Volltext

DOI / URN:	10.1186/s40510-015-0074-0

Katalog-ID:	SPR03656091X

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520			\|a Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines.
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allfields	10.1186/s40510-015-0074-0 doi (DE-627)SPR03656091X (SPR)s40510-015-0074-0-e DE-627 ger DE-627 rakwb eng Kanavakis, Georgios verfasserin aut Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. Palatally impacted canines (dpeaa)DE-He213 Panoramic images (dpeaa)DE-He213 Lateral incisor morphology (dpeaa)DE-He213 Crown-to-root angulation (dpeaa)DE-He213 Curran, Karen M aut Wiseman, Kevin C aut Barone, Nicholas P aut Finkelman, Matthew D aut Srinivasan, Sreedevi aut Lee, Moonyoung B aut Trotman, Caroll-Ann aut Enthalten in Progress in orthodontics Heidelberg : SpringerOpen, 2000 16(2015), 1 vom: 26. Feb. (DE-627)325298319 (DE-600)2035497-6 2196-1042 nnns volume:16 year:2015 number:1 day:26 month:02 https://dx.doi.org/10.1186/s40510-015-0074-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 16 2015 1 26 02
spelling	10.1186/s40510-015-0074-0 doi (DE-627)SPR03656091X (SPR)s40510-015-0074-0-e DE-627 ger DE-627 rakwb eng Kanavakis, Georgios verfasserin aut Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. Palatally impacted canines (dpeaa)DE-He213 Panoramic images (dpeaa)DE-He213 Lateral incisor morphology (dpeaa)DE-He213 Crown-to-root angulation (dpeaa)DE-He213 Curran, Karen M aut Wiseman, Kevin C aut Barone, Nicholas P aut Finkelman, Matthew D aut Srinivasan, Sreedevi aut Lee, Moonyoung B aut Trotman, Caroll-Ann aut Enthalten in Progress in orthodontics Heidelberg : SpringerOpen, 2000 16(2015), 1 vom: 26. Feb. (DE-627)325298319 (DE-600)2035497-6 2196-1042 nnns volume:16 year:2015 number:1 day:26 month:02 https://dx.doi.org/10.1186/s40510-015-0074-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 16 2015 1 26 02
allfields_unstemmed	10.1186/s40510-015-0074-0 doi (DE-627)SPR03656091X (SPR)s40510-015-0074-0-e DE-627 ger DE-627 rakwb eng Kanavakis, Georgios verfasserin aut Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. Palatally impacted canines (dpeaa)DE-He213 Panoramic images (dpeaa)DE-He213 Lateral incisor morphology (dpeaa)DE-He213 Crown-to-root angulation (dpeaa)DE-He213 Curran, Karen M aut Wiseman, Kevin C aut Barone, Nicholas P aut Finkelman, Matthew D aut Srinivasan, Sreedevi aut Lee, Moonyoung B aut Trotman, Caroll-Ann aut Enthalten in Progress in orthodontics Heidelberg : SpringerOpen, 2000 16(2015), 1 vom: 26. Feb. (DE-627)325298319 (DE-600)2035497-6 2196-1042 nnns volume:16 year:2015 number:1 day:26 month:02 https://dx.doi.org/10.1186/s40510-015-0074-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 16 2015 1 26 02
allfieldsGer	10.1186/s40510-015-0074-0 doi (DE-627)SPR03656091X (SPR)s40510-015-0074-0-e DE-627 ger DE-627 rakwb eng Kanavakis, Georgios verfasserin aut Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. Palatally impacted canines (dpeaa)DE-He213 Panoramic images (dpeaa)DE-He213 Lateral incisor morphology (dpeaa)DE-He213 Crown-to-root angulation (dpeaa)DE-He213 Curran, Karen M aut Wiseman, Kevin C aut Barone, Nicholas P aut Finkelman, Matthew D aut Srinivasan, Sreedevi aut Lee, Moonyoung B aut Trotman, Caroll-Ann aut Enthalten in Progress in orthodontics Heidelberg : SpringerOpen, 2000 16(2015), 1 vom: 26. Feb. (DE-627)325298319 (DE-600)2035497-6 2196-1042 nnns volume:16 year:2015 number:1 day:26 month:02 https://dx.doi.org/10.1186/s40510-015-0074-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 16 2015 1 26 02
allfieldsSound	10.1186/s40510-015-0074-0 doi (DE-627)SPR03656091X (SPR)s40510-015-0074-0-e DE-627 ger DE-627 rakwb eng Kanavakis, Georgios verfasserin aut Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. Palatally impacted canines (dpeaa)DE-He213 Panoramic images (dpeaa)DE-He213 Lateral incisor morphology (dpeaa)DE-He213 Crown-to-root angulation (dpeaa)DE-He213 Curran, Karen M aut Wiseman, Kevin C aut Barone, Nicholas P aut Finkelman, Matthew D aut Srinivasan, Sreedevi aut Lee, Moonyoung B aut Trotman, Caroll-Ann aut Enthalten in Progress in orthodontics Heidelberg : SpringerOpen, 2000 16(2015), 1 vom: 26. Feb. (DE-627)325298319 (DE-600)2035497-6 2196-1042 nnns volume:16 year:2015 number:1 day:26 month:02 https://dx.doi.org/10.1186/s40510-015-0074-0 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 16 2015 1 26 02
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This is an Open Access article distributed under the terms of the Creative Commons Attribution License (</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. 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author	Kanavakis, Georgios
spellingShingle	Kanavakis, Georgios misc Palatally impacted canines misc Panoramic images misc Lateral incisor morphology misc Crown-to-root angulation Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines
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topic_title	Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines Palatally impacted canines (dpeaa)DE-He213 Panoramic images (dpeaa)DE-He213 Lateral incisor morphology (dpeaa)DE-He213 Crown-to-root angulation (dpeaa)DE-He213
topic	misc Palatally impacted canines misc Panoramic images misc Lateral incisor morphology misc Crown-to-root angulation
topic_unstemmed	misc Palatally impacted canines misc Panoramic images misc Lateral incisor morphology misc Crown-to-root angulation
topic_browse	misc Palatally impacted canines misc Panoramic images misc Lateral incisor morphology misc Crown-to-root angulation
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title	Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines
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title_full	Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines
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author_browse	Kanavakis, Georgios Curran, Karen M Wiseman, Kevin C Barone, Nicholas P Finkelman, Matthew D Srinivasan, Sreedevi Lee, Moonyoung B Trotman, Caroll-Ann
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title_sort	evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines
title_auth	Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines
abstract	Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
abstractGer	Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
abstract_unstemmed	Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines. © Kanavakis et al.; licensee springer. 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (
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title_short	Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines
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author2	Curran, Karen M Wiseman, Kevin C Barone, Nicholas P Finkelman, Matthew D Srinivasan, Sreedevi Lee, Moonyoung B Trotman, Caroll-Ann
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This is an Open Access article distributed under the terms of the Creative Commons Attribution License (</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Background The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Methods Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners' observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. Results A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7% of the lateral incisors that were identified as “abnormal” by the panel of orthodontists were adjacent to a PIC. A percentage of 65.2 of lateral incisors that were identified as “normal” were located adjacent to NECs. Conclusions The root of lateral incisors adjacent to PICs is angulated more mesially compared to lateral incisors adjacent to NECs. In addition, clinicians are somewhat able to predict if a canine is palatally impacted by visually observing the crown-to-root angulation of the adjacent lateral incisor. Evaluating the crown-to-root angulation of a lateral incisor on a panoramic image might facilitate an early diagnosis of palatally impacted canines.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Palatally impacted canines</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Panoramic images</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Lateral incisor morphology</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Crown-to-root angulation</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Curran, Karen M</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wiseman, Kevin C</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Barone, Nicholas P</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Finkelman, Matthew D</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Srinivasan, Sreedevi</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lee, Moonyoung B</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Trotman, Caroll-Ann</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Progress in orthodontics</subfield><subfield code="d">Heidelberg : SpringerOpen, 2000</subfield><subfield code="g">16(2015), 1 vom: 26. 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Evaluation of crown-root angulation of lateral incisors adjacent to palatally impacted canines

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