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Relationship between Physiological Resorption of Primary Molars with Its Permanent Successors, Dental Age and Chronological Age

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Caleya, Antonia M. & Gallardo, Nuria E. & Feijoo, Gonzalo & Mourelle-Martínez, M. Rosa & Martin Vacas, Andrea & Maroto, Myriam .Relationship between Physiological Resorption of Primary Molars with Its Permanent Successors, Dental Age and Chronological Age.

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Caleya, Antonia M. & Gallardo, Nuria E. & Feijoo, Gonzalo & Mourelle-Martínez, M. Rosa & Martin Vacas, Andrea & Maroto, Myriam. Relationship between Physiological Resorption of Primary Molars with Its Permanent Successors, Dental Age and Chronological Age.

https://hdl.handle.net/20.500.12080/39393
dc.contributor.author Caleya, Antonia M.
dc.contributor.author Gallardo, Nuria E.
dc.contributor.author Feijoo, Gonzalo
dc.contributor.author Mourelle-Martínez, M. Rosa
dc.contributor.author Martin Vacas, Andrea
dc.contributor.author Maroto, Myriam
dc.date.accessioned 2024-01-29T15:52:19Z
dc.date.available 2024-01-29T15:52:19Z
dc.date.created 2022-06
dc.identifier.uri https://hdl.handle.net/20.500.12080/39393
dc.description.abstract The aim of the present study was to analyse root resorption of the primary mandibular molars and their relationship with their permanent successors and the age of the patient. Methods: The sample consisted of 408 digital panoramic radiographs. The mesial and distal crown-to-root ratios (CRR) of #74 and #75 were calculated by dividing the measures of the length of each root by its coronal height. The Demirjian formation stage of the premolar was established, and dental age was determined. A descriptive and statistical analysis was performed using SPSS to determine the correlation between the variables (Pearson¿s correlation coefficient) and to identify the differences between them (Student¿s t-test), with a confidence level of 95%. Results: 723 molars were measured, and tables of CRR depending on dental and chronological age were obtained. The CRR decreased with increasing dental and chronological age, but not uniformly. The CRR of #74 and #75 decreased slightly when the successor premolar was in the initial stages of formation. Gender differences were obtained with respect to chronological age, mainly in girls, because the root resorption of #74 was always more advanced, and the formation of the #34 more advanced. Conclusions: Root resorption of the molar is slight and progressive when the successor premolar begins formation until stage D, and becomes higher starting at stage E. It is possible to determine the state of the child¿s maturation and the CRR according to dental and chronological age. Keywords: dental root resorption; paediatric dentistry; root resorption; dental age; crown-to-root rati es_ES
dc.format application/pdf es_ES
dc.language eng es_ES
dc.rights CC-BY es_ES
dc.rights.uri http://creativecommons.org/licenses/by/4.0/deed.es es_ES
dc.title Relationship between Physiological Resorption of Primary Molars with Its Permanent Successors, Dental Age and Chronological Age es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.rights.accessrights info:eu-repo/semantics/openAccess es_ES
dc.identifier.location N/A es_ES


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