Morphology of maxilla in patients with palatally displaced canines

Miresmaeili, Amirfarhang; Shokri, Abbas; Salemi, Fatemeh; Dehghani, Fatemeh; Shahidi-Zandi, Vahid; Rad, Ramin; Shahdoost, Maryam

doi:10.1016/j.ortho.2019.01.012

Cited by 7 publications

(7 citation statements)

References 19 publications

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“…Without access to a frontal X-ray for each patient, inter-molar width was used as an indicator of maxillary transverse insufficiency with all the limitations that this entails, especially with regard to therapeutic implications. The association of reduced inter-molar width with SDC still remains in literature [3,27,[29][30][31][32][33]. In our study, such an association was found (Table 3).…”

Section: Discussionsupporting

confidence: 63%

Screening for the risk of canine impaction, what are the presumptive signs and how does it affect orthodontics? A cross-sectional study in France

Brézulier,

Carnet,

Marie-Cousin

et al. 2023

PLoS ONE

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Purpose The treatment of impacted canines is a challenge for orthodontists. The availability of suggestive clinical signs has become crucial for treatment before the potential for evolution ceases. The main objective was to evaluate the prevalence of the suspected displaced canine (SDC) and to highlight factors easily identifiable from the oral examination. Methods SDC was assessed on panoramic X-rays, on the basis of the angle with the median sagittal plane and the degree of overlap with the permanent lateral incisor. Its association with mesio-distal tooth and palate widths was assessed by univariate analysis. Next, the association of SDC with temporary tooth extraction, expansion and/or premolar extraction was considered using the same modality. Results In this retrospective study, the records of 292 patients aged 7 to 13 years were reviewed. SDC was detected in 39% of patients i.e., 28,8% of observed canines. Reduced coronal mesio-distal diameters of permanent maxillary central incisors, 8.7 ± 0.6 mm versus 8.8 ± 0.7 mm (p < .05), and first permanent molars, 10.0 ± 0.7 mm versus 10.2 ± 0.7 mm (p < .001), as well as reduced inter-molar width, 38.7 ± 2.7 mm versus 39.4 ± 2.9 mm (p < .01), were predictive factors. SDC led orthodontists to indicate extraction of maxillary primary canines, OR = 3,32 (p < .001) or even extraction of premolars, OR = 1,66 (p < .05). Conclusion This study confirmed the interest of panoramic X-rays in detected canines at risk of SDC. Dental factors can be combined to make screening more reliable and predict impaction that makes orthodontics complex. Trial registration number Opinion n°21.131, dated 09.21.2021, retrospectively registered.

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Section: Discussionsupporting

confidence: 63%

Screening for the risk of canine impaction, what are the presumptive signs and how does it affect orthodontics? A cross-sectional study in France

Brézulier,

Carnet,

Marie-Cousin

et al. 2023

PLoS ONE

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“…[ 74 ] It was shown that the relapse of lower anterior teeth was more common in patients without retainers than in controls. [ 75 76 ]…”

Section: Resultsmentioning

confidence: 99%

Keeping the teeth in line: Exploring the necessity of bonded retainers in orthodontics: A narrative review

Jasim,

Kadhum,

Hasan

2024

Journal of Orthodontic Science

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In most recent studies, long-term retention after orthodontic treatment has been hypothesized that may be necessary to maintain the stability of the dentition and avoid post-treatment changes. The bonded fixed retainer is characterized by its clinical effectiveness, patient acceptance, and lack of patient complaints as compared with a removable retainer. An electronic database (such as PubMed, PubMed Central, Web of Science, Science Direct, Cochrane Library, Scopus, and ResearchGate) has been collected using specific keywords. Of the 152 articles, only randomized clinical trials that investigated different types of fixed retainers or compared fixed with removable retainers were illustrated in tables and included in this review. The present review has gone some way towards enhancing our understanding of the bonded fixed retainer, types, material, bonding methods, and how to improve its the success rate, besides the importance of new technology in fixed orthodontic retention.

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“…The ICC was 0.887 for all of the measurements on the CBCT scans, and almost perfect agreements were obtained at the lingual point levels on the first molars (0.961), the second premolars (0.943), and the first premolars (0.969). Other studies describe high interexaminer agreement (0.9) for the CBCT measurements [ 15 , 16 , 17 ], although one of these studies [ 17 ] used the cuspids on the first molars as the reference point, and their inclination or rotation could influence the results. The ICC was higher for the measurements on the casts (0.919) than for those on the CBCT scans in the present study, with the best reference point for the cast measurements being the lingual point on the first premolars (0.997), and the worst being the Walaridge on the upper first molars (0.6) ( Table 2 ).…”

Section: Discussionmentioning

confidence: 99%

“…By contrast, Misrasmaeli at al. found no statistically significant difference in this measurement at the lingual level on the upper first molars [ 17 ]. The width at the lingual level has not been measured in previous CBCT studies [ 10 , 11 , 15 , 16 ] ( Table 4 ), ( Figure 10 ).…”

Section: Discussionmentioning

confidence: 99%

“…No consensus has been established on the best approach to maxillary transverse deficiency measurement [ 11 ]. Digital dental casts have been used for maxillary transverse measurements in patients with impacted canines by most authors [ 9 , 12 , 13 , 14 ], and cone beam computed tomography (CBCT) scans by others [ 15 , 16 , 17 , 18 ]. Hong et al measured the maxillary basal bone and the interdental widths at the maxillary first molars and the first and second premolars on the axial and coronal CBCT sections [ 15 ], and Arboleda recorded measurements on images at four levels: at the first molar basal and alveolar widths, and at the first premolar basal and alveolar widths [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

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Comparison between Digital Casts and Cone Beam Computed Tomography for Measuring Maxillary Transverse Dimensions in Patients with Impacted Canines

et al. 2022

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Cone beam computed tomography (CBTCT) scans (n = 45) and digital dental casts (n = 45) were both used to measure the maxillary transverse dimensions in patients with impacted maxillary canines. The objectives were to explore the associations of these dimensions with the impaction and patient characteristics, and to compare the measurements between these techniques. The maxillary width was measured on scans and casts at the Walaridge, and the intermolar width and interpremolar width levels were measured at the first and second premolars (measured from the buccal grooves and the palatal cuspids, and the palatal and lingual amelocemental junctions). Two examiners independently compared the measurements between the control quadrants (without impaction) and the case quadrants (with impaction) in patients with unilateral impactions, and between the unilateral and bilateral impaction groups. The interclass correlation coefficient (ICC) was calculated to assess the interexaminer reliability and paired or independent Student’s t-tests and ANOVAs were used for comparisons. The ICCs were 0.887 and 0.919, globally, for the measurements on the CBCT scans and casts, respectively, which indicates the excellent interexaminer reliability. On the CBCT scans, statistically significant differences were found between the case and control quadrants in the transverse measurements at the lingual level on the upper first molars, and at the WALA ridge level on the upper second premolars (p < 0.05) in the unilateral impaction group. Significant differences were found between the case quadrants in the unilateral versus the bilateral groups at the WALA ridge on the second premolars in casts (p < 0.05), and at the lingual point on the first molars on the CBCT scans (p < 0.05). No statistically significant differences in the transverse measurements were observed between the impacted buccal and palatal canines on either the casts or CBCT scans. To the best of our knowledge, this is the first study to compare the transverse measurements between digital models and CBCT scans.

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Morphology of maxilla in patients with palatally displaced canines

Cited by 7 publications

References 19 publications

Screening for the risk of canine impaction, what are the presumptive signs and how does it affect orthodontics? A cross-sectional study in France

Screening for the risk of canine impaction, what are the presumptive signs and how does it affect orthodontics? A cross-sectional study in France

Keeping the teeth in line: Exploring the necessity of bonded retainers in orthodontics: A narrative review

Comparison between Digital Casts and Cone Beam Computed Tomography for Measuring Maxillary Transverse Dimensions in Patients with Impacted Canines

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