Maturational changes of the normal occlusion: A 40-year follow-up

Massaro, Camila; Miranda, Felicia; Janson, Guilherme; Almeida, Renato Rodrigues de; Pinzan, Arnaldo; Martins, Décio Rodrigues; Garib, Daniela Gamba

doi:10.1016/j.ajodo.2017.10.028

Cited by 51 publications

(63 citation statements)

References 49 publications

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“…In a forty-year follow-up study on 22 patients starting from age 13, Massaro et al reported that anterior crowding and clinical crown height of posterior teeth increased and mandibular inter canine width, arch length and arch perimeter significantly decreased. Moreover, maxillary and mandibular inter-molar width slightly increased, but this difference was not statistically significant (31).…”

Section: Discussionmentioning

confidence: 77%

The Effect of First Permanent Tooth Eruption on Dental Arch Dimension

Ghadimi

Tosifian²,

Baghalian

et al. 2020

Iran J Ortho

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Background: Crowding is one of the most prevalent types of malocclusion as well as a major problem in clinical orthodontics. It is essential to know the cause of crowding in order to achieve a better treatment. Objectives: A longitudinal analysis of arch dimension changes in late primary and early mixed dentition periods in children was designed and investigated the effect of eruption of precedence on the arch size in the samples under study. Methods: This longitudinal study was carried out on 32 children aged 5.5-6.5 years who had no erupted permanent dentition. Impression was taken and the arch perimeter, depth and width as well as tooth size were measured by a digital calliper and a brass wire on casts. After eruption of the first permanent tooth, the second impression was taken; the above-mentioned parameters were measured on the second casts. Data were analysed by ANOVA test. Results: Four pattern of eruption of precedence were as follows: maxillary 1st molar, mandibular incisors, Mandibular 1st molars and simultaneous eruption of maxillary and mandibular 1st molars. With eruption of mandibular central incisors, inter canine width and overjet increased by 0.81 and 0.27 mm, respectively. The mandibular arch perimeter increased by 2.25 mm with simultaneous eruption of maxillary and mandibular permanent first molars. The maxillary arch perimeter increased by 1.25 mm and 1.50 mm with eruption of maxillary first molars and simultaneous eruption of maxillary permanent first molars, respectively. Conclusions: Eruption precedence had a significant effect on changing mandibular inter canine width, maxillary arch perimeter, mandibular arch perimeter and overjet.

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Section: Discussionmentioning

confidence: 77%

The Effect of First Permanent Tooth Eruption on Dental Arch Dimension

Ghadimi

Tosifian²,

Baghalian

et al. 2020

Iran J Ortho

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“…The random errors of dental cast measurements ranged from 0.01 (width/height of 21) to 2.98 (OGS). 26 Digital models measurements showed that Class I presented statistically significant higher width/height proportion in RLI than normal occlusion group (Table I).…”

Section: Resultsmentioning

confidence: 95%

“…However it has been reported that this variable only showed significantly changes in the late growth period (40 th decade of life), while no significant effects has been reported in young adults. 26,37 Since patients in this study were young adults, influence of sex could not be expected.…”

Section: Discussionmentioning

confidence: 96%

“…[32][33][34][35] In this study, greater width/height proportions were found compared with those from previous researches. 6,22,26 This may be explained because the widths of the subjects included in this study were larger and consequently influenced the width/height proportion in anterior upper teeth. This could be considered an inherent characteristic of the sample.…”

Section: Discussionmentioning

confidence: 96%

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Comparison of microesthetic patterns in normal occlusion in relation to class I malocclusion treated with extractions of four premolars

Maranhão¹

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The aim of this research was to compare the microesthetics characteristics of the maxillary anterior tooth in individuals with Class I malocclusion treated with four premolars extractions in relation to normal occlusion as well the evaluation of symmetry between right and left sides in both groups. Methods: The sample was divided into two groups, first one with Angle Class I malocclusion treated with four premolars extraction (mean age of 15.18 and composed by 22 female and 9 male patients), and second one with Normal Occlusion (mean age of 16.93 and comprised by 15 female and 16 male individuals) composed by 31 individuals each. Objective grading system index (OGS) was evaluated in the plaster models of both groups and then digitized in 3D 3Shape R700 scanner (3Shape A/S, Copenhagen, Denmark). The width/height proportion of anterosuperior teeth, zenith location, height of connectors and gingival contour were measured with OrthoAnalyzer™ 3D program. Random and systematic errors were respectively evaluated with Dahlberg's formula and paired t tests. Mann-Whitney U and t tests were applied to variables without and with normal distribution respectively. Results: In most comparison there was no significant differences between groups. It was noticed in a few situations that Class I group presented significantly greater width/height proportion in 12 than Normal Occlusion; significantly smaller gingival zenith of 23, significantly greater connector in 22 to 23 and also significantly greater gingival contour in right side in comparison to Normal Occlusion group. Both sides of Class I and Normal Occlusion groups presented symmetry. Conclusion: Four premolar extractions orthodontic treatment of Class I malocclusion provides similar microesthetic patterns as individuals with normal occlusion. Both groups generally present symmetric microesthetic characteristics.

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“…3,10,12,17,21,23,24 One of the limitations of performing longitudinal studies is the difficulty in collecting data, which restricts the sample size. 10,21,25,26 (Figs. 2 to 4), confirming that craniofacial growth continued into adulthood as previously reported.…”

Section: Discussionmentioning

confidence: 99%

Dentoskeletal and tegumental changes in individuals with normal occlusion after a 40-year follow-up

Natsumeda¹

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Obrigada por tudo família! Amo muito vocês! Agradeço, com muito carinho e admiração, À minha orientadora, Drª Daniela Garib. Obrigada por confiar e dividir comigo este projeto tão especial! Obrigada pelos ensinamentos, orientação e paciência. Sou fã da sua serenidade e da maneira como ensina a Ortodontia. A senhora encanta qualquer um com sua didática, clareza e maestria. Serei eternamente grata por ter tido a honra de ser sua orientada, e me sinto muito privilegiada por tantos conhecimentos adquiridos!

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Maturational changes of the normal occlusion: A 40-year follow-up

Cited by 51 publications

References 49 publications

The Effect of First Permanent Tooth Eruption on Dental Arch Dimension

The Effect of First Permanent Tooth Eruption on Dental Arch Dimension

Comparison of microesthetic patterns in normal occlusion in relation to class I malocclusion treated with extractions of four premolars

Dentoskeletal and tegumental changes in individuals with normal occlusion after a 40-year follow-up

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