Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition

<i>Background</i>: This present retrospective study aimed to introduce Lower Incisor—Pg and to assess how this new parameter varies with the skeletal sagittal and vertical relationships. <i>Methods</i>: A total of 1256 cephalometric analyses were performed using lateral cepha...

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Main Authors: Marzio Galdi, Federica Di Spirito, Alessandra Amato, Davide Cannatà, Roberto Rongo, Stefano Martina
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Dentistry Journal
Subjects:
Online Access:https://www.mdpi.com/2304-6767/11/11/264
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author Marzio Galdi
Federica Di Spirito
Alessandra Amato
Davide Cannatà
Roberto Rongo
Stefano Martina
author_facet Marzio Galdi
Federica Di Spirito
Alessandra Amato
Davide Cannatà
Roberto Rongo
Stefano Martina
author_sort Marzio Galdi
collection DOAJ
description <i>Background</i>: This present retrospective study aimed to introduce Lower Incisor—Pg and to assess how this new parameter varies with the skeletal sagittal and vertical relationships. <i>Methods</i>: A total of 1256 cephalometric analyses were performed using lateral cephalometric radiographs of a sample of subjects divided according to <i>SN^Go-Gn</i>, <i>ANPg^</i>, and <i>IMPA</i> measurements. The differences in <i>Lower Incisor—Pg</i> between the groups were assessed through ANOVA tests and posthoc analyses, while Pearson’s correlation analysis was used to assess the correlations between the measurements. <i>Results</i>: The mesofacial growth pattern (61.0%) was more common than dolichofacial (30.0%) and brachyfacial (8.6%) ones in the sampled population. Regarding skeletal sagittal relationships, Class I was more frequent (70.9%) than Class II (19.3%) and Class III (9.8%). The mean value of the Lower Incisor—Pg was 3.2 ± 4.0 mm. Linear regression showed that the β coefficient was 0.45 and 0.36 for ANPg^ and SnGoGn^, respectively. <i>Conclusions</i>: Lower Incisor—Pg is a linear cephalometric measurement to evaluate the lower incisor sagittal position. For each degree of increase in ANPg^ and SNGoGn^, the Lower Incisor—Pg increased 0.45 mm and 0.36 mm, respectively.
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spelling doaj.art-9332986082514105a017d9706a510bf82023-11-24T14:37:24ZengMDPI AGDentistry Journal2304-67672023-11-01111126410.3390/dj11110264Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of DentitionMarzio Galdi0Federica Di Spirito1Alessandra Amato2Davide Cannatà3Roberto Rongo4Stefano Martina5Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, ItalyDepartment of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, ItalyDepartment of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, ItalyDepartment of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, ItalyDepartment of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, ItalyDepartment of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, Italy<i>Background</i>: This present retrospective study aimed to introduce Lower Incisor—Pg and to assess how this new parameter varies with the skeletal sagittal and vertical relationships. <i>Methods</i>: A total of 1256 cephalometric analyses were performed using lateral cephalometric radiographs of a sample of subjects divided according to <i>SN^Go-Gn</i>, <i>ANPg^</i>, and <i>IMPA</i> measurements. The differences in <i>Lower Incisor—Pg</i> between the groups were assessed through ANOVA tests and posthoc analyses, while Pearson’s correlation analysis was used to assess the correlations between the measurements. <i>Results</i>: The mesofacial growth pattern (61.0%) was more common than dolichofacial (30.0%) and brachyfacial (8.6%) ones in the sampled population. Regarding skeletal sagittal relationships, Class I was more frequent (70.9%) than Class II (19.3%) and Class III (9.8%). The mean value of the Lower Incisor—Pg was 3.2 ± 4.0 mm. Linear regression showed that the β coefficient was 0.45 and 0.36 for ANPg^ and SnGoGn^, respectively. <i>Conclusions</i>: Lower Incisor—Pg is a linear cephalometric measurement to evaluate the lower incisor sagittal position. For each degree of increase in ANPg^ and SNGoGn^, the Lower Incisor—Pg increased 0.45 mm and 0.36 mm, respectively.https://www.mdpi.com/2304-6767/11/11/264lower incisor positionfacial aestheticcephalometricepidemiologyorthodonticsdiagnosis
spellingShingle Marzio Galdi
Federica Di Spirito
Alessandra Amato
Davide Cannatà
Roberto Rongo
Stefano Martina
Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition
Dentistry Journal
lower incisor position
facial aesthetic
cephalometric
epidemiology
orthodontics
diagnosis
title Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition
title_full Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition
title_fullStr Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition
title_full_unstemmed Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition
title_short Lower Incisor—Pg: A New Cephalometric Parameter to Evaluate the Anterior Limit of Dentition
title_sort lower incisor pg a new cephalometric parameter to evaluate the anterior limit of dentition
topic lower incisor position
facial aesthetic
cephalometric
epidemiology
orthodontics
diagnosis
url https://www.mdpi.com/2304-6767/11/11/264
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