Características da Oclusão Decídua em Crianças de 2 a 5 Anos de Idade em João Pessoa, PB, Brasil

Abstract

Denti ção decídua; Má oclusão; Epidemiologia. Denti ti on, primary; Malocclusion; Epidemiology. Objecti ve: To evaluate the normal occlusal characteristi cs and malocclusions in the primary denti ti on in children aged 2 to 5 years in the city of João Pessoa, PB, Brazil. Method: The probabilisti c sample was composed of 350 children att ending Children Educati on Reference Centers. The clinical examinati ons were done by a calibrated single examiner. The normal occlusal characteristi cs followed the Baume's classifi cati on (types of dental arch, presence of primate spaces and types of terminal plane relati onships of the primary second molars). The SBBrasil criteria were used to determine the index of malocclusion (IM). Data were analyzed stati sti cally (p<0.05) Results: There was higher prevalence of type I arch in the maxillary (75.7%) and mandibular (74.8%) arches, without associati on between the type of arch and gender or age group of the children. Primate spaces were observed in 96.9% of the maxillary and 78.6% of the mandibular arches. The occurrence of primate spaces was more frequent in the maxillary than in the mandibular arch (p<0.01), without stati sti cal signifi cance for gender in the maxilla, but with signifi cance in the mandible (p<0.05). There was higher frequency of the mesial terminal step (56.3%), followed by straight (30.6%) and distal (4.6%). There was no associati on between terminal plane relati onship and gender of the children, by associati on was found between gender and age group (p<0.01). The IM showed that 56% of the preschoolers had normal occlusion, 12.3% had mild occlusal disorders, and 317% had moderate/severe occlusal disorders, without stati sti cally signifi cant diff erence between genders, and a signifi cant decrease (p<0.01) in the moderate/severe conditi on with the increase of age. Conclusion: The majority of the children had favorable characteristi cs for the normal development of occlusion in the denti ti on primary, in spite of the high prevalence of moderate/ severe occlusal disorders.

Assessment of occlusal characteristics of the primary dentition: a cross-sectional study in Brazilian preschool children

“…The literature reports a tendency toward the spontaneous correction of abnormalities in incisal relation of primary dentition 4,8 . In the present study, the distribution of increased overjet was 74.1% in two-year-olds and 51% in five-year-olds (linear decrease with age).…”

“…The characteristics of the anterior region in primary dentition are classified by space discrepancies (type of arch) and incisal relation (overjet and anterior open bite) and the posterior region is identified by sagittal deviations (molar and canine relation) and transverse deviations (posterior crossbite). Studies performed in the last 60 years report the most common features that may predict the favorable development of the permanent dentition 3 , including the presence of diastemas in the anterior region, non-increased overjet and overbite, straight or mesial step of primary molars, and Class I canine relation [4][5][6][7][8] . Chart 1 shows some of the occlusal characteristics of the primary dentition described in Brazilian studies published since the year 2000.…”

Relación entre mordida cruzada posterior unilateral y hábitos bucales deletéreos en preescolares de un municipio del sudoeste del Bahía

“…En 2010 se realizó un estudio en el suroeste de Bahía, Brasil donde se reveló un porcentaje de maloclusión del 66,7% y en la región Nordeste del 64,8%, evidenciándose resultados superiores a los encontrados en la población de este estudio. [29][30] A pesar de que no se considera una diferencia significativa según la literatura, los resultados de esta investigación se diferencian de los estudios de Rossi et al, quienes reportaron el 56% se presentó en el sexo masculino, mientras que el sexo femenino tuvo un índice del 44%. 2,31 Se reveló en el presente estudio que de todas las maloclusiones observadas, la prevalencia fue del 35% para MCPU.…”

Periodo De Lactancia Materna Y Su Relación Con El Desarrollo Del Arco Dentario Superior Deciduo

“…Respecto a las características del arco dentario superior se pudo observar una mayor prevalencia de arco Tipo I en un 75,9%; similar a los estudios de Baume (19) , Cândido y cols. (20) , y Serna y Silva (21) . Luego de realizar el estudio comparativo entre el tipo de arco y el período de lactancia materna exclusiva; se encontró una mayor prevalencia en niños con lactancia adecuada y prolongada de arco tipo I. Asimismo, al relacionarlo con el período de lactancia mixta, se obtuvo una mayor prevalencia en niños con lactancia adecuada e interrumpida, no encontrándose relación estadísticamente significativa.…”

“…Respecto a la presencia de espacios primates se obtuvo que un 69% de la muestra si presenta espacios primates, a diferencia de los estudios de Zari (22) , Cândido y cols. (20) , Serna y Silva (21) , y Williams y cols. (14) .…”