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Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I

AIM: To describe the variation of eruption pattern of maxillary canines in the late mixed stage of dentition seen in PTG when eruption was later natural. METHODS: Material for this longitudinal and retrospective register-based study consisted of 1454 PTGs of children living in Eastern Finland (mean...

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Autores principales: Ristaniemi, J., Rajala, W., Karjalainen, T., Melaluoto, E., Iivari, J., Pesonen, P., Lähdesmäki, R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8994718/
https://www.ncbi.nlm.nih.gov/pubmed/34263432
http://dx.doi.org/10.1007/s40368-021-00650-1
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author Ristaniemi, J.
Rajala, W.
Karjalainen, T.
Melaluoto, E.
Iivari, J.
Pesonen, P.
Lähdesmäki, R.
author_facet Ristaniemi, J.
Rajala, W.
Karjalainen, T.
Melaluoto, E.
Iivari, J.
Pesonen, P.
Lähdesmäki, R.
author_sort Ristaniemi, J.
collection PubMed
description AIM: To describe the variation of eruption pattern of maxillary canines in the late mixed stage of dentition seen in PTG when eruption was later natural. METHODS: Material for this longitudinal and retrospective register-based study consisted of 1454 PTGs of children living in Eastern Finland (mean age 9.3 years, SD 0.6). Natural eruption of a canine consisted of 744 PTGs (336 girls and 408 boys) including 1488 maxillary canines. The variables examined were treatment/natural eruption, overlapping, inclination, dental age, developmental stage of the canine and lateral incisor. RESULTS: Only 2.0% of maxillary canines had clear overlapping and 56.2% no overlapping was detected at the age of 8.5–10.5 years. Large inclination angle (≥ 25°) was found for 5.5% of examined canines. Overlapping of canine with lateral incisor root decreased as the development of canine root exceeded 1/3. Larger inclinations occurred at earlier stages but decreased significantly as the root developed from 1/3 to 1/2. Mean inclination was significantly larger at children with normal dental age and/or incomplete lateral incisors when overlapping occurred. Regardless overlapping mean inclination was larger if dental age was delayed and/or lateral incisors incomplete. CONCLUSION: Some overlapping and larger inclination in maxillary canine are features of normal eruption pattern at an earlier stage of canine development and while lateral incisor is incomplete in PTG (8.5–10.5 years). In addition to the overlapping and inclination, stages of canine and lateral incisor root as well as dental age should be observed radiologically when evaluating erupting maxillary canine in children of this age.
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spelling pubmed-89947182022-04-22 Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I Ristaniemi, J. Rajala, W. Karjalainen, T. Melaluoto, E. Iivari, J. Pesonen, P. Lähdesmäki, R. Eur Arch Paediatr Dent Original Scientific Article AIM: To describe the variation of eruption pattern of maxillary canines in the late mixed stage of dentition seen in PTG when eruption was later natural. METHODS: Material for this longitudinal and retrospective register-based study consisted of 1454 PTGs of children living in Eastern Finland (mean age 9.3 years, SD 0.6). Natural eruption of a canine consisted of 744 PTGs (336 girls and 408 boys) including 1488 maxillary canines. The variables examined were treatment/natural eruption, overlapping, inclination, dental age, developmental stage of the canine and lateral incisor. RESULTS: Only 2.0% of maxillary canines had clear overlapping and 56.2% no overlapping was detected at the age of 8.5–10.5 years. Large inclination angle (≥ 25°) was found for 5.5% of examined canines. Overlapping of canine with lateral incisor root decreased as the development of canine root exceeded 1/3. Larger inclinations occurred at earlier stages but decreased significantly as the root developed from 1/3 to 1/2. Mean inclination was significantly larger at children with normal dental age and/or incomplete lateral incisors when overlapping occurred. Regardless overlapping mean inclination was larger if dental age was delayed and/or lateral incisors incomplete. CONCLUSION: Some overlapping and larger inclination in maxillary canine are features of normal eruption pattern at an earlier stage of canine development and while lateral incisor is incomplete in PTG (8.5–10.5 years). In addition to the overlapping and inclination, stages of canine and lateral incisor root as well as dental age should be observed radiologically when evaluating erupting maxillary canine in children of this age. Springer Berlin Heidelberg 2021-07-14 2022 /pmc/articles/PMC8994718/ /pubmed/34263432 http://dx.doi.org/10.1007/s40368-021-00650-1 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Original Scientific Article
Ristaniemi, J.
Rajala, W.
Karjalainen, T.
Melaluoto, E.
Iivari, J.
Pesonen, P.
Lähdesmäki, R.
Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I
title Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I
title_full Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I
title_fullStr Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I
title_full_unstemmed Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I
title_short Eruption pattern of the maxillary canines: features of natural eruption seen in PTG at the late mixed stage—Part I
title_sort eruption pattern of the maxillary canines: features of natural eruption seen in ptg at the late mixed stage—part i
topic Original Scientific Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8994718/
https://www.ncbi.nlm.nih.gov/pubmed/34263432
http://dx.doi.org/10.1007/s40368-021-00650-1
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