Morphometric analysis of the palatal shape and arch dimension in subjects with palatally displaced canine

Mucedero, Manuela; Rozzi, Matteo; Milazzo, Alessia; Cozza, Paola

doi:10.1093/ejo/cjy080

Cited by 10 publications

(4 citation statements)

References 37 publications

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“…But previous studies of unilaterally and bilaterally palatally impacted canines denoted no significant palatal vault morphology, and the observed subjects showed no maxillary transverse constriction except for a significant reduction in the intercanine width between the two groups. 39 Our findings of decreased transverse palatal width and shallow palatal height substantiate the findings of Tang et al, who found a decreased palatal vault depth and palatal intermolar area when measured on casts of growing children with PIMC. 40 Our study shed some light on the effects of the transverse dimension of the palatal morphology at various levels of the teeth, such as the CEJ, the alveolar crest, and the mid-root level.…”

Section: Discussionsupporting

confidence: 91%

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The Relationship between Unilateral Palatal Maxillary Canine Impaction and the Morphology of the Maxilla: A CBCT Study in Eastern Province of Saudi Arabia

et al. 2022

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Objective This study aimed to examine the correlation between the morphology of the maxilla and unilateral palatally impacted maxillary canine (PIMC) among the Saudi population in the Eastern Province of Saudi Arabia. Materials and Methods In this retrospective study, 36 patients' records [(17 PIMC, 8 male, 9 female, mean age 16.75 ± 2.12 years) (19 control; 9 male,10 female, mean age: 17.16 ± 2.12 years)] were included from a teaching dental hospital. On cone-beam computed tomographic images, measurements of maxillary arch length (MAL), palatal vault depth (PVD), intermolar width, sum of widths of 4 maxillary incisors, available arch space (AAS), palatal maxillary width (PMW) in the molar and premolar regions, nasal cavity width (NCW), maxillary arch shape (MAS) (arch length/intermolar width x 100), and palatal vault shape (PVS) (the PVD/intermolar width x100) were performed. Data were analyzed by SPSS-20.0. p-value less than or equal to 0.05 reflected statistical significance. Results This study's findings depicted that AAS (p = 0.012), PVD (p = 0.028), and PMW in the molar and premolar regions at the level of the alveolar crest (p = 0.002 and p = 0.034) and mid-root (p = 0.004 and p = 0.022) were significantly higher in the control compared to the PIMC group. PVS showed a significant difference between the PIMC and control groups (p = 0.037). However, regarding MAS, no significant difference was observed (p = 0.707). Conclusion MAS was narrower in PIMC compared to the control group. The control group had a deeper palatal vault and greater AAS compared to the PIMC group. However, no significant difference was observed between groups regarding tooth size or NCW.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

The Relationship between Unilateral Palatal Maxillary Canine Impaction and the Morphology of the Maxilla: A CBCT Study in Eastern Province of Saudi Arabia

et al. 2022

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“…The results of comparing the groups (one and two impacted canines compared with CG) showed no significant difference in palatal shape. However, the width between the canines of t’he impacted groups based on linear measurements was significant compared to the CG subjects [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

Statistical shape analysis of maxillary palatal morphology in patients with palatally displaced canines

Sobhani,

Miresmaeili,

Mahjub

et al. 2023

BMC Med Imaging

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Objective Maxillary morphology has long been a subject of interest due to its possible impact on palatally and labially displaced canines. This study aims to conduct a comparison of the palate morphology between individuals with palatal and labially displaced canines and control subjects using statistical shape analysis on a coronal cross-sectional of CBCT images. Materials and methods Patients aged between 12 and 43 years with palatally or labially displaced canines referred to Hamadan School of Dentistry between 2014 and 2019 were recruited for this retrospective study. The sample included 29 palatally displaced canines (PDC), 20 labially displaced canines (LDC), and 20 control groups (CG). Initially, the maxillary palate coronal section was acquired and landmarked in the region between the right and the left first molar. Procrustes and principal component analyses were used to identify the primary patterns of palatal shape variation. Statistical tests were then performed to examine both shape and size differences. Results According to the results of Hotelling’s T2 test, there is a significant difference between the mean shape of palate in PDC and CG (P = 0.009), while the difference between the PDC-LDC and LDC-CG groups is not significant. The longest full Procrustes distance was observed between PDC and CG (distance = 0.043), and the shortest full Procrustes distance was observed between LDC and CG (distance = 0.029). The first two principal components accounted for 84.47% of the total variance. The predictive accuracy of the discriminant analysis model showed that 72.46% of cases were correctly classified into the three study groups. Conclusions In terms of centroid size, there was no significant difference in the sectional area between the three groups, but the difference between the mean shape of palate in the PDC and CG groups was significant. The PDC group showed more prominent mid-palatal area in the molar region.

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“…In addition, this advanced methodology has been utilized in dentistry, particularly for orthodontics, to examine shape variations, including the shape of the palate in relation to the skeletal structure [17,18] and tooth positioning [19,20]. There has also been a recent study utilizing this method to analyze tooth morphology in relation to the malocclusion type [21].…”

Section: Introductionmentioning

confidence: 99%

A morphometric approach to morphology analysis of palatal rugae in sibling groups

Tey,

Syed Mohamed,

Marizan Nor

2023

Journal of Forensic Sciences

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Recent advances in imaging technologies, such as intra‐oral surface scanning, have rapidly generated large datasets of high‐resolution three‐dimensional (3D) sample reconstructions. These datasets contain a wealth of phenotypic information that can provide an understanding of morphological variation and evolution. The geometric morphometric method (GMM) with landmarks and the development of sliding and surface semilandmark techniques has greatly enhanced the quantification of shape. This study aimed to determine whether there are significant differences in 3D palatal rugae shape between siblings. Digital casts representing 25 pairs of full siblings from each group, male–male (MM), female–female (FF), and female–male (FM), were digitized and transferred to a GM system. The palatal rugae were determined, quantified, and visualized using GMM computational tools with MorphoJ software (University of Manchester). Principal component analysis (PCA) and canonical variates analysis (CVA) were employed to analyze palatal rugae shape variability and distinguish between sibling groups based on shape. Additionally, regression analysis examined the potential impact of shape on palatal rugae. The study revealed that the palatal rugae shape covered the first nine of the PCA by 71.3%. In addition, the size of the palatal rugae has a negligible impact on its shape. Whilst palatal rugae are known for their individuality, it is noteworthy that three palatal rugae (right first, right second, and left third) can differentiate sibling groups, which may be attributed to genetics. Therefore, it is suggested that palatal rugae morphology can serve as forensic identification for siblings.

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Morphometric analysis of the palatal shape and arch dimension in subjects with palatally displaced canine

Cited by 10 publications

References 37 publications

The Relationship between Unilateral Palatal Maxillary Canine Impaction and the Morphology of the Maxilla: A CBCT Study in Eastern Province of Saudi Arabia

The Relationship between Unilateral Palatal Maxillary Canine Impaction and the Morphology of the Maxilla: A CBCT Study in Eastern Province of Saudi Arabia

Statistical shape analysis of maxillary palatal morphology in patients with palatally displaced canines

A morphometric approach to morphology analysis of palatal rugae in sibling groups

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