Self correcting anomalies

self correcting anomalies in the development of occlusion. this ppt includes the anomalies of a child's developing occlusion which get corrected by itself in some time as the development continues. This includes Retrognathic mandible,infantile swallow,anterior open and deep bite,etc. these topics are important in BDS final examination

1. DEVELOPMENT OF OCCLUSION( III self correcting anomalies ) SUBMITTED BY Vikrant singh

2. SELF CORRECTING ANOMALIES “Anomalies, which arise in child’s developing dentition during the period of transition from predentate period to permanent dentition period and get corrected on their own without any dental treatment”`

3. Classification of self correcting anomalies is based on the period of development of occlusion PREDENTATE PERIOD DECIDUOUS DENTITION PERIOD MIXED DENTITION PERIOD Retrognathic mandible Deep bite Anterior deep bite Anterior open bite Flush terminal plane End on molar relation Infantile swallow Primate and physiologic spacing Mandibular anterior crowding Ugly duckling stage

4. Pre dentate period Retrognathic mandible Type of malocclusion which refers to an abnormal posterior positioning of the mandible. * corrected by increased pace of forward growth of the mandible as compared to that of maxilla.

5. Anterior open bite It is defined as the lack of incisal contact between anterior teeth when the mandible is bought into full closure OR It is defined as absence of vertical overlap of lower incisors when the posterior teeth are in full occlusion.

6. gue Infantile swallow (aka tongue between gum pads) the jaw are apart and tongue is placed between upper and lower gum pads. *this pattern changes during first year of life with the introduction of solid food in diet

7. Deciduous dentition period Deep bite -occur in initial stages of development - Deep bite is accentuated by the fact that the deciduous incisors are more upright than their succesors the permanent incisors. The lower incisal edges comes in contact with the cingulum area of maxillary incisors. - Deep bite is later reduced due to *Eruption of deciduous molar *Attrition of incisors *Forward movement of mandible due to growth

8. Flush terminal plane Presence of flush terminal plane in deciduous dentition indicates normal occlusal relationship in permanent dentition

9. Primate and physiological spacing - Mesial to maxillary canine . - Distal to mandibular canine. *spacing in primary dentition is essential to normal eruption and alignment of the larger permanent succesors

10. Mixed dentition period Anterior deep bite Because of large permanent incisor and shedding of primary molar. * Alleviated following exfoliation of second primary molar

11. End on molar relation flush terminal relation between the deciduous second molar leads to the end on relation of the first permanent molar.

12. Mandibular anterior crowding After exchange of canines alleviated following exfoliation of second primary molar

13. Ugly duckling stage due to eruption off maxillary canine at 8-9 yrs of age there is a transient of self correcting malocclusion seen in max. incisor region * This condition usually corrects itself when the canine erupts and the pressure is transferred to the coronal area of the incisors.

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