Relationship between vertical facial patterns and dental arch form in class II malocclusion

Cristina Grippaudo, Bruno Oliva, Anna Lucia Greco, Simone Sferra, Roberto Deli

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

19 Citazioni (Scopus)

Abstract

Background: The purpose of this study is to evaluate the relationship between dental arch form and the vertical facial pattern determined by the angle between the mandibular plane and the anterior cranial base (Sella-nasion/ mandibular plane angle (SN-MP)) in skeletal class II untreated patients. Methods: A sample of 73 Caucasians patients with untreated skeletal class II in permanent dentition was divided into three groups according to the values of the angle SN-MP. An evaluation of the arch form was performed by angular and linear relation values on each patient. Regression analysis was used to determine the statistical significance of the relationships between SN-MP angle and dental arch form. The differences among the three groups were analyzed for significance using a variance analysis. Results: A decrease of the upper arch transversal diameters in high SN-MP angle patients and an increase in low angle SN-MP ones (P < 0.05) were shown. Result analysis showed a change in upper arch shape, with a smaller intercanine width in patients with high SN-MP angle and a greater one in low angle patients. As SN-MP angle increased, the upper arch form tended to be narrower. No statistically significant difference in mandibular arch form among the three groups was found, except the angle value related to incisors position. Conclusions: The results showed the association between the upper dental arch form and the vertical facial pattern. On the contrary, the lower arch form was not related to the mandibular divergence. © 2013 Grippaudo et al.; licensee Springer.
Lingua originaleEnglish
pagine (da-a)1-7
Numero di pagine7
RivistaProgress in Orthodontics
Volume14
DOI
Stato di pubblicazionePubblicato - 2013

Keywords

  • Arch form
  • Class II malocclusion
  • Software
  • Vertical facial pattern

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