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Malocculusion pattern among Handicapped children in Ibadan, Nigeria
Abstract
Objective: There is paucity of information in Nigeria concerning the occlusal characteristics of handicapped children, yet they need functional and aesthetic consideration comparable to that of ‘normal' persons. The aim of this study was to investigate the pattern of malocclusion among the handicapped children in Ibadan, Nigeria.
Materials and Methods: An epidemiological survey of 412 handicapped children aged 6 – 18 years, 210 males (51%) and 202 females (49%) was carried out. All the children were examined in their classrooms under natural illumination with the assistance of the class teachers and the information obtained such as Angle's classification 12,13,14, overjet based on jackson's method15, overbite and tooth – bone ratio were entered in a pre-structured data form.
Result: From the results, normal occlusion was seen in 13.8% children, Angle's class 1 malocclusion in 55.3%, 21.4% had Angle's class II while Angle's class III was seen in 9.5%. One case of Angle's class II div. 2 was seen. Females had statistically significant higher number of class III malocclusion cases (P<0.05).
Spacing of the upper labial segment was observed to occur in 51.2% of children examined while spacing of the lower labial segment was noted in 39.6%. Crowding of these segments occurred in 9.2% and 17.7% respectively of the sample population.
Overbite I was observed in 54.6% of the children examined. Deep bite (overbite 3) occurred in 2.9% of those examined. Overjet values of less than 2 mm were the most prevalent occurring in 82.3% while 6.3% of the children examined had increased overjet.
Conclusion: The pattern of malocclusion among those handicapped children did not vary widely from their ‘normal' counterparts.
KEY WORDS: Malocclusion pattern; Handicapped children; Ibadan – Nigeria.
[Nig J Clinical Practice Vol.5(1) 2002: 57-60]
Materials and Methods: An epidemiological survey of 412 handicapped children aged 6 – 18 years, 210 males (51%) and 202 females (49%) was carried out. All the children were examined in their classrooms under natural illumination with the assistance of the class teachers and the information obtained such as Angle's classification 12,13,14, overjet based on jackson's method15, overbite and tooth – bone ratio were entered in a pre-structured data form.
Result: From the results, normal occlusion was seen in 13.8% children, Angle's class 1 malocclusion in 55.3%, 21.4% had Angle's class II while Angle's class III was seen in 9.5%. One case of Angle's class II div. 2 was seen. Females had statistically significant higher number of class III malocclusion cases (P<0.05).
Spacing of the upper labial segment was observed to occur in 51.2% of children examined while spacing of the lower labial segment was noted in 39.6%. Crowding of these segments occurred in 9.2% and 17.7% respectively of the sample population.
Overbite I was observed in 54.6% of the children examined. Deep bite (overbite 3) occurred in 2.9% of those examined. Overjet values of less than 2 mm were the most prevalent occurring in 82.3% while 6.3% of the children examined had increased overjet.
Conclusion: The pattern of malocclusion among those handicapped children did not vary widely from their ‘normal' counterparts.
KEY WORDS: Malocclusion pattern; Handicapped children; Ibadan – Nigeria.
[Nig J Clinical Practice Vol.5(1) 2002: 57-60]
