Treatment of Unilateral Posterior Scissors-Bite in a Mixed Dentition Patient

Objective: To assess primary molars early loss in mixed dentition prevalence. Method: A study was carried out in children aged 6 to 12 years. Deciduous molar loss was considered early when it occurred before Nolla stage 6 (full formed crown) of the permanent successor or one year before its physiological exfoliation. Periapical radiographs were obtained to verify the presence of the permanent successor and the level of root formation, as well as the need for placement of fixed space maintainer lingual arch or Nance button. For the study of frequency distribution of early dental loss in relation to gender and dentition, we used the Chi-square test of 5% probability level and the non-parametric Mann-Whitney test for adequate statistical analysis. Results: Of the 315 children examined, 159 (50.47%) were male and 156 (49.52%) were female. Only 25 (7.9%) presented multiple dental losses in the posterior region, 19 in the lower arch and 6 in the upper arch. In the inferior one there was predominance of first and second deciduous molars loss. There was no difference in the association between genders and the occurrence of multiple dental losses (χ² (1) = 0.03, p>0.05). Conclusion: The prevalence of deciduous teeth premature loss was of 7.9% and the most affected teeth were the first and second molars in the lower arch. Lingual arch space holders were installed in 6 children, who will remain with it until the permanent successors erupt into the oral cavity.

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Resorption of multirooted temporary teeth in children with dentofacial anomalies in accordance with the orthopantomography data

Стоматология детского возраста и профилактика ◽

10.33925/1683-3031-2020-20-3-235-241 ◽

2020 ◽

Vol 20 (3) ◽

pp. 235-241

Author(s):

F. S. Ayupova ◽

S. N. Alekseenko ◽

V. Ya. Zobenko ◽

T. V. Gayvoronskaya

Keyword(s):

Primary Teeth ◽

Root Resorption ◽

Type A ◽

Mixed Dentition ◽

Permanent Teeth ◽

Primary Molars ◽

Second Primary ◽

X Rays ◽

Primary Molar ◽

Posterior Teeth

Relevance. To study the incidence of different types of resorption of multirooted primary teeth, to specify indications for deciduous molar extraction to prevent eruption abnormalities of permanent posterior teeth in mixed dentition.Materials and methods. Root resorption of 375 multirooted primary teeth (166 first primary molars and 209 second primary molars) was studied on panoramic X-rays of 60 children (30 girls and 30 boys) aged between 7 and 15. Illustrated classification by T.F. Vinogradova (1967) improved by authors was used to determine type and degree of root resorption of multi-rooted primary teeth. Received data were described with absolute values of number of cases and percentage. Chi-square was used to detect differences in sign incidence rate between groups, p<0.05 was considered statistically significant.Results. There were no statistically significant gender differences (p>0,05) in type and degree of root resorption of multirooted primary teeth. Type A resorption prevailed and constituted 53.3% of all primary molars. Disturbances in root resorption of multirooted primary teeth in mixed dentition were related to health condition of primary teeth. Transition of even resorption to unven was considered a risk factor of delayed eruption and aberrant position of permanent teeth, and indication for extraction of a primary molar in question. Conclusions. 1) Even root resorption (type A) was detected in 53.3% of primary molars in mixed dentition by orthopantomography. 2) Transition from even resorption of primary molar roots to uneven resorption was associated with eruption deviations and delayed premolar eruption. 3) Timely extraction of primary molars with uneven root resorption facilitated correct eruption of premolars and increased effectiveness of secondary prevention of malocclusion in children.

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Which One of Two Ectopic Mandibular Canines will erupt to a Normal Position in the Dental Arch

Global Dentistry ◽

10.36879/gsl.dcr.2018.00002 ◽

2018 ◽

Author(s):

M Svanholt ◽

P Svanholt ◽

Inger Kjær

Keyword(s):

The Other ◽

Mixed Dentition ◽

Dental Arch ◽

Horizontal Position ◽

Normal Position ◽

Initial Stage ◽

Mandibular Canine ◽

The One

The purpose of this paper is to demonstrate 4 cases with bi-lateral ectopic mandibular canines and to demonstrate in each case which one of the two canines erupted to a normal position in the dental arch. The canines are observed from Orthopantomograms from 4 children (aged 8-13 years of age) in the mixed dentitions stages. Of these children 2 were males and 2 were females. From each child there was between 3-5 Orthopantomograms. These were observed over 3-4 years period. In each of the 4 cases with bi-lateral ectopia of the mandibular canines the one mandibular canine erupted into a normal position, while the other one declined into a horizontal position during the mixed dentition period. These 4 cases demonstrated that the inclination of the canines were important to observe and diagnose from the initial stage (first ortopantomogram). The cases presented, demonstrated that the unsuccessfully erupted canines ending in a horizontal position, were the canines which inclined slightly more that the contra lateral canine already from the initial stage.

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Mixed Dentition Analysis Procedure:A Review

Indian Journal of Public Health Research & Development ◽

10.37506/v10/i12/2019/ijphrd/192285 ◽

2019 ◽

Vol 10 (12) ◽

pp. 1131

Author(s):

A. Keerthika ◽

J. Jeevarathan ◽

Ponnudurai Arangannal ◽

M. Vijayakumar ◽

S. Amudha ◽

...

Keyword(s):

Mixed Dentition ◽

Mixed Dentition Analysis

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Children’s Oral Health on Pico Island, Azores (Portugal)

Medical Sciences Forum ◽

10.3390/msf2021005024 ◽

2021 ◽

Vol 5 (1) ◽

pp. 24

Author(s):

Juliana Pereira ◽

Gunel Kizi ◽

Ana Raquel Barata ◽

Irene Ventura

Keyword(s):

Oral Health ◽

Pediatric Population ◽

Pediatric Dentistry ◽

Mixed Dentition ◽

Class I ◽

Social Solidarity ◽

Children’S Oral Health

Pediatric dentistry focuses on children’s oral health. The aim of this study was to describe the prevalence of malocclusion in a pediatric population. Eighty-two children (3–12 years old), of both genders, who belong to a Social Solidarity Institution for Children in Pico Island were clinically examined. Half were female and half were male, in which most were 7 years old (20.7%) with mixed dentition (58.5%). The highest prevalence was in canine class I and vertical molar. Most children did not have malocclusion characteristics (56.1%).

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Association between sugary drinks consumption and dental caries incidence among Taiwanese schoolchildren with mixed dentition

Community Dentistry And Oral Epidemiology ◽

10.1111/cdoe.12683 ◽

2021 ◽

Author(s):

Po‐Yen Lin ◽

Yu‐Chin Lee ◽

Le‐Yin Hsu ◽

Hong‐Ji Chang ◽

Lin‐Yang Chi

Keyword(s):

Dental Caries ◽

Mixed Dentition ◽

Sugary Drinks

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Applicability of Moyers analysis in mixed dentition: A systematic review

Dental Press Journal of Orthodontics ◽

10.1590/s2176-94512013000600015 ◽

2013 ◽

Vol 18 (6) ◽

pp. 100-105 ◽

Cited By ~ 5

Author(s):

Mariana de Aguiar Bulhões Galvão ◽

Gladys Cristina Dominguez ◽

Sérgio Thomaz Tormin ◽

Alex Akamine ◽

André Tortamano ◽

...

Keyword(s):

Systematic Review ◽

Literature Review ◽

Clinical Case ◽

Case Reports ◽

Mixed Dentition ◽

Inclusion Criteria ◽

Exclusion Criteria ◽

Theoretical Probability ◽

Study Population ◽

Mixed Dentition Analysis

INTRODUCTION: Moyers analysis is widely used for analyzing mixed dentition, however, the accuracy of its theoretical probability tables has been recently questioned. Taking into consideration the fact the mixed dentition analysis is of paramount importance to precisely determine the space needed for alignment of canines and premolars, this research aimed at objectively assessing in the literature such an important step for orthodontic diagnosis. METHODS: A computerized search involving articles published on PubMed and Lilacs between 1990 and September, 2011 was conducted in accordance with the method described in the Cochrane 5.1.0 handbook. RESULTS: The research resulted in a sample composed of 629 articles. The inclusion criteria were: Articles using the Moyers analysis with a sample greater or equal to 40 patients. Conversely, the exclusion criteria were: Dental casts of patients with syndromes or oral cleft, researches conducted with a literature review, only, or clinical case reports and researches conducted before 1990. For this systematic review, 19 articles were selected. CONCLUSION: Based on the literature available, we can conclude that the Moyers mixed dentition analysis must be carefully used, since the majority of the articles analyzed showed that the probability of 75% was not as accurate as expected, leading to the need of adapting the probability levels depending on the study population.

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