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The control group included 100 orthodontic patients without a maxillary transverse discrepancy. Intermolar widths of the experimental group were measured and recorded. The permanent canines of both groups were placed into a sector classification by using a panoramic radiograph.
- Robert H Schindel, Shannon L Duffy
- 2007
1 de mai. de 2007 · The objective of this study is to investigate whether maxillary arch width discrepancy is associated with the occurrence of potentially impacted canines. The sector classification of Lindauer et al 14 was used as an adjunct to localize the position of the impacted canines.
- Robert H Schindel, Shannon L Duffy
- 2007
1 de mai. de 2007 · R. Schindel, Shannon L Duffy. Published in Angle Orthodontist 1 May 2007. Medicine. TLDR. Results of this study showed that patients with a transverse discrepancy are more likely to have an impacted canine than those patients without aTransverse discrepancy, with the impaction more likely being unilateral. Expand.
- Study Design
- Digital Cast Analysis
- Error of The Method and Power of The Study
- Statistical Analysis
Subjects aged 7 to 11 years who received a periodical orthodontic evaluation at a single private practice of one of the authors (GC) between 2012 and 2015 were considered for inclusion. Early prediction of maxillary canine impaction was made by using geometric measurements on panoramic radiographs. The measurements included the position (sector) an...
The upper dental cast of all subjects was obtained from A-Silicone impressions (Elite HD+, Zhermack SpA, Badia Polesine, Italy). The dental cast was scanned by a three-dimensional scanner (D100, Imetric 3D, Courgenay, Switzerland) and analysed by the VAM software (Vectra 3D, Canfield Scientific, Fairfield, NJ). The three-dimensional scanner project...
The level of significance was fixed at 0.01 for all statistical tests. Seven dental casts were randomly selected from both groups and redigitized by the same operator. The variables were recalculated to determine the method error with the intraclass correlation coefficient (ICC). The ICCs ranged from 0.87 to 0.99 for all examined variables. The pow...
The chi-square test and two-way factorial ANOVA for independent samples were calculated to compare respectively the female to male ratio and the ages of the samples. No statistically significant differences were found both in the female to male ratio (chi-square = 0.22; P = 0.639) and the ages (F = 1.21; P= 0.277) of the two groups. The normal dist...
The Angle Orthodontist: An International Journal of Orthodontics and Dentofacial Orthopedics since 1930. ... Robert Schindel '19, Stony Brook, NY.
Orthodontics in the Fifth ... Orthodontics in the Fifth Dimension Angle Orthod . 2019 ... Robert H Schindel. PMID: 31622565 PMCID: PMC8109154 DOI ...
Schindel and Duffy 13 (2007) concluded that there is a close relationship between the transverse maxillary discrepancy and potentially impacted canines, which can be identified by panoramic radiographs.
