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EnglishIntroduction: This study aims to determine the shape and dimension of dental arches from a lingual perspective, and determine shape and size of a straight archwire used for lingual Orthodontics.Methods: The study sample comprised 70 Caucasian Brazilian individuals with normal occlusion and at least four of Andrew’s six keys. Maxillary and mandibular dental casts were digitized (3D) and the images were analyzed by Delcam Power SHAPET 2010 software. Landmarks on the lingual surface of teeth were selected and 14 measurements were calculated to determine the shape and size of dental arches.Results: Shapiro-Wilk test determined small arch shape by means of 25th percentile (P25%) — an average percentile for the medium arch; and a large one determined by means of 75th percentile (P75%). T-test revealed differences between males and females in the size of 12 dental arches.Conclusion: The straight-wire arch shape used in the lingual straight wire technique is a parabolic-shaped arch, slightly flattened on its anterior portion. Due to similarity among dental arch sizes shown by males and females, a more simplified diagram chart was designed.
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| Titolo: | Determining shapes and dimensions of dental arches for the use of straight-wire arches in lingual technique | |
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| Data di pubblicazione: | 2014 | |
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| Handle: | http://hdl.handle.net/11392/2369971 | |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
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