Implications of Permanent Teeth Dimensions and Arch Lengths on Dental Crowding during the Mixed Dentition Period

Daoud, Raisa; Bencze, Maria-Angelica; Albu, Cristina-Crenguta; Teodorescu, Elina; Dragomirescu, Anca-Oana; Vasilache, Adriana; Suciu, Ioana; Ionescu, Ecaterina

doi:10.3390/app11178004

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…In a previously published study, we have concluded that dental crowding in the mixed dentition is associated both with decreased arch lengths, but also with variations of mesiodistal and buccolingual dimensions of permanent incisors and lower first molars [14].…”

Section: Background and Aimsmentioning

confidence: 89%

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Assessing the morphological characteristics of teeth and dental arches as potential predictors of dental crowding

Daoud¹,

Bencze²,

Albu³

et al. 2023

Medicine and Pharmacy Reports

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Background and aims. The early detection of dental crowding and its potential for aggravation is important during the clinical examination of mixed dentition patients, and these desiderates can be addressed by including among the clinically assessed items a series of accessible morphological characteristics of teeth and dental arches. The present study investigates possible correlations between morphological features of permanent teeth, widths of dental arches, and the onset of dental crowding during mixed dentition. Methods. A selected group of 100 class I dental casts on mixed dentition was analyzed. The dental arches were grouped as spaced, normally aligned, and crowded. The dental parameters consisted of mesiodistal dimensions of permanent teeth and specific morphological features of permanent incisors and first molars. The anterior and posterior arch widths according to Pont indices were measured. Results. Statistical analysis of data showed that mesiodistal dimensions of the permanent upper central incisors and lower incisors are significantly larger on severely crowded arches than on normally aligned arches; increased differences between mesiodistal dimensions of central and lateral permanent upper incisors and the presence of semi-shavel incisors and Carabelli cusps are associated with a greater extent of anterior crowding. The severely crowded arches presented significantly narrower anterior and posterior arch widths. Conclusions. Increased mesiodistal dimensions of permanent incisors, the presence of incisors shoveling, the Carabelli cusps on upper first permanent molars, and narrowing of dental arches during the early mixed dentition period were associated with severe dental crowding in class I cases.

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Section: Background and Aimsmentioning

confidence: 89%

“…Regarding possible correlations between dental morphology and arch crowding, studies conducted on permanent dentition and mixed dentition demonstrated the existence of variations in mesiodistal, buccolingual, and crown proportions of permanent incisors and lower permanent first molars in patients with arch crowding [14,26].…”

Section: Discussionmentioning

confidence: 99%

Assessing the morphological characteristics of teeth and dental arches as potential predictors of dental crowding

Daoud¹,

Bencze²,

Albu³

et al. 2023

Medicine and Pharmacy Reports

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Modeling the parameters necessary for constructing the correct shape of the dental arch depending on the features of teleradiometric indicators using the Steiner or Tweed methods and computed tomography dimensions of teeth

Ryabov,

Shinkaruk-Dykovytska,

Pylypiuk

et al. 2024

Rep. of Morph.

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The study of the parameters of the dental arch, taking into account teleradiometric indicators and tooth sizes, is important for planning orthodontic treatment, which contributes to achieving stable and functionally optimal results. The Steiner and Tweed methods, widely used to assess craniofacial proportions, allow identifying key anthropometric features that affect the shape of the dental arch. The additional use of computed tomography measurements provides high accuracy in analyzing tooth sizes, which is especially important for individualizing orthodontic approaches. The aim of the work is to build and analyze regression models of parameters necessary for constructing the correct shape of the dental arch in Ukrainian young men and young women with physiological occlusion, depending on the features of teleradiometric indicators according to the Steiner or Tweed methods and computed tomography sizes of the teeth. On standardly obtained teleradiograms and created in the 3D Slicer v5.4.0 software on teleradiograms with points marked on 3D objects (41 Ukrainian young men and 68 young women with physiological occlusion from the data bank of the Department of Pediatric Dentistry and the Scientific and Research Center of the National Pirogov Memorial Medical University, Vinnytsya), measurements according to the Steiner S. S. and Tweed C. H. methods were carried out in the OnyxCeph³™ application, version 3DPro, from Image Instruments GmbH, Germany. On computer tomograms for morphometric study of teeth and dental arches we used software applications i-Dixel One Volume Viewer (Ver.1.5.0) J Morita Mfg. Cor, and Planmeca Romexis Viewer (ver. 3.8.3.R 15.12.14) Planmeca OY. Regression models were built using the licensed package “Statistica 6.0”. It was found that in young men, taking into account the Steiner method, all 18 possible reliable models with a coefficient of determination greater than 0.6 were built (R2= from 0.611 to 0.911, p<0.001), and taking into account the Tweed method, 17 models (R2= from 0.638 to 0.872, p<0.001); and young women – only 5 reliable models with a coefficient of determination greater than 0.6 when taking into account the Steiner method (R2= from 0.613 to 0.782, p<0.001) and only 4 reliable models when taking into account the Tweed method (R2= from 0.619 to 0.745, p<0.001). When analyzing the frequency of occurrence in the regression equations of computed tomography sizes of teeth and teleradiometric indicators according to the Steiner or Tweed methods, it was established: in young men, the width of the crown part of the tooth in the mesio-distal and vestibulo-oral planes, the length of the tooth in the mesio-distal and vestibulo-oral planes and teleradiometric indicators are most often included in the models; and in young women: when taking into account the indicators according to the Steiner method - the width of the crown part of the tooth in the mesio-distal and vestibulo-oral plane and teleradiometric indicators; when taking into account the indicators according to the Tweed method - the width of the crown part of the tooth in the mesio-distal and vestibulo-oral plane, the length of the tooth in the mesio-distal and vestibulo-oral planes, teleradiometric indicators and the length of the crown part of the tooth in the mesio-distal plane. When analyzing the frequency of occurrence in the regression equations of the corresponding teeth, it was found that in young men, the models that take into account the teleradiometric indicators according to the Steiner or Tweed methods most often include the upper and lower incisors, upper and lower premolars and upper canines; and in young women – upper and lower incisors, upper and lower canines, lower premolars and upper first molars taking into account teleradiometric indicators according to the Steiner method, as well as upper and lower incisors and lower premolars taking into account teleradiometric indicators according to the Tweed method.

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Impact of Malocclusions on Periodontopathogenic Bacterial Load and Progression of Periodontal Disease: A Quantitative Analysis

Albu,

Suciu,

Albu

et al. 2024

Microorganisms

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Background: (1) Periodontal disease (PD) is a globally prevalent chronic inflammatory condition, exacerbated by the dysbiosis of the oral microbiota. This study aims to evaluate the bacterial load of specific periodontopathogenic bacteria in patients with malocclusions (MAL) compared to those without. (2) Methods: Conducted at the “Carol Davila” University of Medicine and Pharmacy, Bucharest, Romania, this pilot study involved two groups: patients with MAL and PD, and patients with PD but without MAL. We included 20 patients: 10 with MAL (9 with crowding and 1 with an open bite) and 10 without MAL. Gingival crevicular fluid was collected for bacterial DNA extraction and quantified bacterial load using real-time PCR, focusing on 12 periodontopathogenic bacteria across different complexity classes. (3) Results: The study identified significantly higher concentrations of Treponema denticola (p = 0.023, median = 4.32, IQR = 2.76–5.53 vs. median = 1.93, IQR = 0–3.19), Tannerella forsythia (p = 0.020, mean = 6.04 ± 0.72 vs. mean = 4.4 ± 1.89) and Porphyromonas gingivalis (p = 0.002, median = 5.64, IQR = 4.94–5.98 vs. median = 2.48, IQR = 0–4.05) in patients with MAL compared to those without. This suggests that MAL contributes to an environment conducive to the proliferation of specific pathogens, potentially accelerating PD progression. Additionally, Eikenella corrodens (p = 0.040, mean = 4.55 ± 1.02 vs. mean = 3.23 ± 1.56), Campylobacter rectus (p < 0.001, mean = 4.2 ± 0.56 vs. mean = 1.8 ± 1.51), Prevotella intermedia (p = 0.043, median = 5.04, IQR = 0–5.49 vs. median = 0, IQR = 0–3.39), Capnocytophaga sputigena (p = 0.011, median = 5.91, IQR = 5.47–6.17 vs. median = 4.63, IQR = 3.83–5.64), and Capnocytophaga gingivalis (p = 0.007, median = 5.87, IQR = 5.34–6.03 vs. median = 4.4, IQR = 3.5–5.71) also showed elevated concentrations, indicating the broad impacts of MAL on oral microbial profiles. (4) Conclusions: The findings demonstrate a significant relationship between MAL and increased bacterial loads, underscoring the need for its integration in managing PD. Future research should expand demographic diversity and employ longitudinal designs to better understand the causative mechanisms at play.

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Implications of Permanent Teeth Dimensions and Arch Lengths on Dental Crowding during the Mixed Dentition Period

Cited by 4 publications

References 28 publications

Assessing the morphological characteristics of teeth and dental arches as potential predictors of dental crowding

Assessing the morphological characteristics of teeth and dental arches as potential predictors of dental crowding

Modeling the parameters necessary for constructing the correct shape of the dental arch depending on the features of teleradiometric indicators using the Steiner or Tweed methods and computed tomography dimensions of teeth

Impact of Malocclusions on Periodontopathogenic Bacterial Load and Progression of Periodontal Disease: A Quantitative Analysis

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