ABSTRACT
To determine the predicting the effect of BMI-index percentile on the skeletal maturation of Nigerian children. Design: A prospective cross-sectional study. Setting: This study was conducted in a tertiary health care facility in North-Central Nigeria. Participants: Children between the ages of 5-17 years consisting of 44 males and 30 females that presented in the Child Dental clinic over a period of eight months were recruited for the study. Main outcome measured: Skeletal maturation was assessed using the middle phalanx of the third finger (MP3) while the standard WHO growth chart specific for age (2-20 years) and gender was used for grading BMI-percentile. The unpaired t-test was used to compare mean chronological age of the stages of MP3 according to gender. Multinomial logistic regression used to determine the predictive effect of age, gender and BMI percentile on pubertal growth spurt. Results: The BMI-percentile had weak correlation with the pubertal growth spurt (r=0.089, p=0.448). Gender (p=0.004) and chronological age had significant (p<0.001) predictive effect on the skeletal maturation. A one-percentile increase in the BMI-percentile decreases the likelihood of healthy children to be in the peak-pubertal by 1.504 when compared to obese children (p=0.305). Conclusions: This study showed that BMI-percentile is a weak predictor of skeletal maturation. However, obese children had a tendency towards advanced skeletal maturation than healthy participants. It is therefore suggested that orthodontists should consider early implementation of jaw modification treatments among obese children.
Subject(s)
Humans , Age Determination by Skeleton , Jaw Abnormalities , Dental Clinics , Symptom Flare Up , OrthodontistsABSTRACT
Aim: To determine the predicting effect of BMI-index percentile on the skeletal maturation of Nigerian children. Materials and Methods: A cross-sectional descriptive study. This study was conducted in a tertiary health care facility in North-Central Nigeria. Participants were children between the ages of 5-17 years consisting of 44 males and 30 females who presented in the child dental clinic over a period of eight months were recruited for the study. Skeletal maturation was assessed using the middle phalanx of the third finger (MP3), while the standard WHO growth chart specific for age (2-20 years) and sex was used for grading BMI-percentile. The unpaired t-test was used to compare mean chronological age of the various stages of MP3 according to sex. Multinomial logistic regression was used to determine the predictive effect of age, sex, and BMI percentile on pubertal growth spurt. Results: The BMI- percentile did not show a significant correlation with the pubertal growth spurt (r=0.089, p=0.448). Sex (p=0.004) and chronological age had significant (p<0.001) predictive effect on the skeletal maturation, unlike the BMI-percentile. A onepercentile increase in the BMI- percentile decreases the likelihood of healthy children to be in the peak-pubertal by 1.504 when compared to obese children (p=0.305. Conclusion: This study showed that BMI-percentile is a weak predictor of skeletal maturation. However, obese children had a tendency towards advanced skeletal maturation than healthy participants. It is therefore suggested that orthodontists should consider early implementation of jaw modification treatments among obese children.
Subject(s)
Age Determination by Skeleton , Body Mass Index , ChildABSTRACT
Background: The assessment of skeletal maturity is important in the timing of orthodontic treatment especially in the modification of dento-facial growth. The use of cervical vertebrae as a method of assessment of skeletal maturity has rarely been used among Down Syndrome. Objective: To assess skeletal maturity among individuals with Down Syndrome using the cervical vertebrae maturation stages. Methods: The study was conducted among 21 Down Syndrome with mean ages of 11.70 ï± 1.83 years (males) and 13.64 ï± 1.75 years (female); and 21 control individuals with mean ages of 12.00 ï± 2.00 years (male), and 13.50 ï± 1.90 years (female). The independent t-test and chi-square test were used to determine significant differences among the continuous (age) and categorical variables (cervical vertebrae maturation stages) respectively when matched with gender and chronological age. Fischer exact test was used when an expected frequency presentation was <5. A p-value of < 0.05 was set as statistically significant. Results: Down Syndrome males had delayed maturation at 11 years but accelerated at 12 with early attainment of maturity at 15 years. Down Syndrome female had a delay tendency in skeletal maturation from 1115 years of age. Overall, Down Syndrome had a 1.242 probability of either having a delay or advancement in skeletal maturation which was not statistically significant. Conclusively, the skeletal maturation pattern between Down syndrome patients and normal individuals was not statistically different. Conclusion: The average timing for commencement of orthodontic treatment especially growth modification for normal individuals can be applied for individuals with Down Syndrome as this present study did not show any statistically significant difference in their overall skeletal maturation.
Subject(s)
Humans , Male , Female , Orthodontics , Age Determination by Skeleton , Cervical Vertebrae , Down SyndromeABSTRACT
Objectifs : Evaluer la place de l'IRM dans la determination de l'age osseux par l'analyse du cartilage de conjugaison de la physe radiale inferieure. Materiels et methodes: etude prospective descriptive portant sur les images d'IRM (en sequence ponderee T1) du poignet gauche de 120 joueurs des equipes nationales des moins de 17ans des republiques du Congo et de Benin. Resultats : Les joueurs etaient tous de sexe masculin. Les trois-quarts de l'effectif etaient de nationalite beninoise et le quart restant; congolaise. Ils n'avaient aucune pathologie connue. Selon leurs documents administratifs; ils etaient tous ages d'au plus 17 ans. La repartition des joueurs selon le stade de fusion de la physe radiale inferieure s'est faite comme suit : I (14;17%); II (15%); III (15%); IV (10;83%); V (30;83%) et VI (14;17%). Ainsi; apres analyse des images d'IRM; 55% des joueurs avaient un age = 17 ans. Conclusion : La declaration de naissance et l'etablissement d'un acte de naissance des les premieres heures de la vie ou encore l'absence de complaisance lors de l'etablissement des documents officiels permettront une meilleure correlation entre l'age civil declare et l'age osseux determine par une exploration d'IRM