Association between occlusal characteristics and the occurrence of dental trauma in preschool children: a case-control study.

BACKGROUND/AIMS: Occlusal features may increase the risk of dental trauma. The aim of the present study was to evaluate the association between occlusal characteristics and the occurrence of dental trauma in preschool children. MATERIALS AND METHODS: A population-based case-control study was conducted with a representative sample of 200 children 3-5 years of age enrolled at private and public preschools in the city of Diamantina, Brazil. The case and control groups were matched for gender, age and type of preschool (public or private) at a ratio of 1:1 (100 cases and 100 controls). Independent variables of interest to the study (occlusal characteristics) and potential confounders (sociodemographic characteristics, sucking habits and lip coverage) were investigated. Intra-examiner and inter-examiner kappa values were higher than 0.80 for all oral conditions evaluated. The SPSS 22.0 program was used to analyse the data. Descriptive and univariate analyses as well as simple and multiple logistic regression analyses were performed. RESULTS: The occlusal feature most strongly associated with trauma was anterior open bite (OR = 3.80; 95% CI: 1.42-10.16). Maxillary anterior crowding (OR = 2.14, 95% CI: 1.00-4.63) and overjet (OR = 1.12, 95% CI: 0.58-2.17) were associated with the occurrence of trauma independently of the confounding variables (sociodemographic characteristics, sucking habits and lip coverage), but these variables lost their significance when adjusted for other types of malocclusion. Anterior open bite remained strongly associated with dental trauma, regardless of confounding variables and other types of malocclusion. CONCLUSION: Anterior open bite was the main variable associated with dental trauma in the preschool children analysed independently of the confounding variables and the presence of other malocclusions.

The effects of playing wind musical instruments on the occlusal characteristics in a Northern Nigerian Population.

INTRODUCTION: Dentists are often questioned on whether playing a wind musical instrument can adversely affect dental occlusion. This study compared the occlusal characteristics in wind instrument players (WIPs) and non-WIPs. MATERIALS AND METHODS: This was a cross-sectional comparative study comprising a group of fifty males aged 18-45 years that had been playing wind instruments for a minimum of 2 years, whereas the control group were non-WIPs in the same environment. All the participants had full complement of dentition. The occlusal characteristics of overjet, overbite, anterior open bite and Little's irregularity were assessed for both groups. Excellent intra-examiner reliability was observed (Cronbach's alpha - 0.997). The Statistical Package for Social Sciences (SPSS Inc., Chicago, IL, USA) version 17 was used for data analysis, and statistical significance level was set at P < 0.05. RESULTS: The number of years of playing wind musical instrument ranged from 2 to 25 years. The mean overjet was 3.46 ± 1.49 mm and 3.18 ± 1.27 mm in the WIP and non-WIP groups, respectively (P > 0.05). The maxillary anterior segment showed statistically significantly higher Little's Irregularity Index score in the WIP group (3.18 ± 3.73 mm) than that in the non-WIP group (1.87 ± 2.21 mm) (P < 0.05). The maxillary Little's Irregularity Index score in trumpet and trombone players (3.55 ± 3.93 mm) was significantly higher than that in saxophone and clarinet players (1.69 ± 2.39 mm). Both the maxillary and mandibular anterior-segment alignments were neither influenced by the number of years nor the frequency of play. CONCLUSIONS: Playing wind musical instruments significantly affects the maxillary anterior-segment alignment.

Prevalence and risk indicators of primary dentition malocclusion in Riyadh-Saudi Arabia using a new case definition: A cross-sectional study.

Objectives: To determine the prevalence of primary dentition malocclusion and its linked risk indicators among a group of Saudi preschool children. Methods: A cross-sectional study was carried out on preschool children aged 3 to 5 years residing in Riyadh City, the capital of Saudi Arabia. The study sample included 709 Saudi children of both genders with complete primary dentition. Oral examination was conducted for children to assess the anteroposterior, transverse, and vertical dimensions, arch spacings, and oral habits. Results: The prevalence of malocclusion was 59.1% among the study participants. A deep overbite and increased overjet were found in 26.23 % and 25.11%, respectively. Arch space problems were reported, including missing primate spaces in 24.12%, missing developmental spacing in 27.93%, and crowding in 14.1%. An association between mothers aged 25 years and younger at childbirth was linked with their child's malocclusion in the primary dentition (p-value of 0.03). Conclusion: The prevalence of primary dentition malocclusion among a specific group of Saudi preschool children was significantly high. Increased overbite and overjet were the most prevalent occlusal discrepancies, followed by arch spacing problems. The younger mother's age at childbirth is significantly associated with her child's malocclusion. The study results can serve as a baseline for future investigations.

Occlusal characteristics in facial pain cases and controls - 12-year follow-up of the Northern Finland Birth Cohort (NFBC) 1966.

Objective: The purpose of this study was to investigate the occlusal characteristics in Finnish adults at 12-year follow-up based on the Northern Finland Birth Cohort 1966 (NFBC1966) subjects.Methods: The occlusal analyses were performed at ages 34 and 46 years of facial pain cases (n = 52) and controls (n = 49) by two different methods.Results: At 12-year follow-up, a significant decrease in upper anterior segment peer assessment rating (PAR) score was found in the controls, indicating improvement in teeth alignment. In facial pain cases, left lateral occlusal relationship and midline asymmetry were significantly decreased. Occlusal asymmetry and overjet were significantly increased. In controls, the left canine showed a more normal occlusal relationship, cuspid asymmetry was changed, and midline asymmetry was significantly decreased.Conclusion: During a 2-year period, occlusal asymmetry and overjet increased significantly in facial pain cases, while occlusal relationship showed more normal characteristics in controls.

Prevalence of Malocclusion in Primary Dentition in Southeast Part of Haryana, India: A Cross-sectional Study.

OBJECTIVE: The purpose of this study was to assess the prevalence of malocclusion in primary dentition of children in southeast part of Haryana state in India. MATERIALS AND METHODS: About 1,540 children of age 3-5 years from 10 nursery and 10 primary schools were selected across Rohtak city. The children were selected by stratified random technique and examined at their respective schools. Oral examination was done to record the parameters such as molar relation, canine relation, crowding, spacing, midline shift, overjet, overbite, rotations, supernumerary teeth, tooth wear, anterior crossbite, and open bite. Chi-square test was used for calculating p-value. RESULTS: Class I canine relations was seen in 66.2%, flush terminal plane, mesial step, and distal step were observed in 60%, 30.8%, 9.2%, respectively. Midline shift was observed in 1.8% in maxilla and 4% cases in mandible. Rotations were more prevalent in mandibular dentition (26%). Supernumerary teeth were found to be 0.4% in maxillary arch. Spacing was reported in 81.9% in maxillary dentition and 69% in mandibular dentition. Increased overjet and overbite was present in 10.3% and 30.9%, respectively. Anterior crossbite and anterior open bite were seen in only 1% and 1.9% children, respectively with statistically significant higher prevalence in males. Prevalence of attritional facets were reported 13% in enamel and 8% in dentin. CONCLUSION: There is a high prevalence of class I canine relation, flush terminal plane molar, and spaced dentitions, suggestive of low prevalence of malocclusion in primary dentition in Rohtak district of Haryana state. The results may provide a baseline data for further research on a larger scale. HOW TO CITE THIS ARTICLE: Sharma K, Bihani T, Kumar V. Prevalence of Malocclusion in Primary Dentition in Southeast Part of Haryana, India: A Cross-sectional Study. Int J Clin Pediatr Dent 2021;14(6):757-761.

Occlusal Characteristics of Primary Dentition among School Going Children.

BACKGROUND: Certain characteristics of the primary dentition have been described that may be required in the smooth transition from primary to permanent dentition and therefore development of ideal occlusion in permanent dentition. The objectives of this study were to assess different occlusal characteristics of primary dentition among school going children of Dharan, Nepal and to compare these occlusal characteristics based on gender and race. METHODS: A community based cross-sectional study was conducted among 625 school children of Mongolian and Caucasian race, aged 3 to 7 years, and having complete set of primary dentition. A close-ended questionnaire was developed to gather demographic information followed by the examination of occlusal and soft tissue parameters. RESULTS: The result showed 77.2% of the children had developmental spaces and 83.1% had primate spaces. Flush terminal plane molar and class I canine relationships were present in 68.8% and 81.6%, respectively with normal overjet (53.5%), normal overbite (41.1%), straight facial profile (86.7%) and competent lips (98.6%). Crowding was present in 35.4%, midline discrepancy in 11.3%, crossbite in 7.2%, scissor bite in 0.6% and open bite in 2.1% of the children examined. CONCLUSIONS: Most of the occlusal characteristics were desirable but with the existence of some malocclusion traits, necessitating timely recognition and correction through early screening. Gender and racial influences were also observed and it emphasizes the need for treatment plan based on them.

Características oclusales de los niños de 5 años del municipio de andes (Antioquia, Colombia) / Occlusal characteristics in children 5-year-old of Andes municipality (Antioquia, Colombia)

Introducción: Las alteraciones oclusales son un problema frecuente en la dentición primaria, su identificación desde edades tempranas permitirá reconocer variaciones en las características normales, que pueden influir en el desarrollo de la oclusión permanente. Objetivo: Establecer las características oclusales en dentición primaria, de los niños y niñas de 5 años de la zona urbana y rural del municipio de Andes (Colombia). Materiales y métodos: Se realizó una valoración clínica de 125 niños mediante inspección visual de la relación entre los componentes dentarios. Se calculó la prevalencia para cada una de las alteraciones oclusales y se estimaron además la frecuencia de alteraciones combinadas. Resultados: Se encontró relación canina clase I en el 84% y clase II con un 12%. La sobremordida horizontal y la vertical fueron normales en el 60,8% y en el 58,4% respectivamente y el 6,4% tenían mordida cruzada posterior. No se encontró ninguna alteración oclusal en el 48,8% de los niños; mientras que en el 3,2% las 4 características oclusales evaluadas estaban alteradas. No hubo diferencias estadísticamente significativas en las características oclusales según sexo. Conclusión: La presencia de alteraciones en la oclusión, detectadas en mayor proporción que el promedio nacional, requiere implementar en el municipio acciones para su detección y tratamiento oportuno que contribuyan a un adecuado crecimiento y desarrollo craneofacial

Introduction: The occlusal alterations are a frequent problem in the primary dentition, their identification from early age, allow to recognize variations in the normal characteristics, which can influence the development of permanent occlusion. Objective: To establish the occlusal characteristics in primary dentition, in children 5-year-old of Andes municipality, Colombia. Materials and methods: One hundred twenty five children were evaluated by a clinical visual inspection of the relationship between the dental components. Prevalence for each occlusal characteristic was calculated and the combined frequencies of alterations were also estimated. Results: Class I canine relationship in 84% and Class II in 12% were found. The horizontal and vertical overbite were normal in 60.8% and 58.4% respectively, and 6.4% had posterior cross bite. None occlusal alteration was found in 48.8% of children; while 3.2% had alteration in the four occlusal characteristics evaluated. There were no statistically significant differences in occlusal characteristics by sex. Conclusion: The presence of occlusal alterations, in a greater proportion than the national average, requires implementing in the municipality actions for its detection and treatment that contribute to adequate craniofacial growth and development.

Occlusal characteristics of deaf-mute individuals in the Turkish population.

OBJECTIVES: To classify and determine the occlusal characteristics of deaf-mute individuals and its gender distribution in the Turkish population. METHODS: For this study, 213 deaf-mute individuals (155 boys and 58 girls) were evaluated. The age range was between 10-24 years, and the mean age was 16.37+/-2.53 years. Measurements were divided into four groups: dental, intraarch, interarch, and, extra data. RESULTS: Of the participants, 75.0% had a Class I molar relationship, whereas 13.0% and 8.0% had Class II and Class III malocclusions, respectively. 23.9% of individuals had a normal overbite, 38.4% had a deepbite, and 23.4% had an openbite. One or more congenitally missing teeth were found in 6.0% of individuals; 81.0% expressed satisfaction with their esthetics, and 19.0% expressed the contrary. CONCLUSIONS: Different characteristics and malocclusions are present in deaf-mute individuals.