Bad habits • Habit: it is an action or condition which by repetition had become spontaneous Oral bad habits 1. 2. 3. 4. Thumb sucking Mouth breathing Lip biting Tongue thrust • It decrease with increase in age • It is less with bottle feeding than glass feeding • It increase with increasing no. of siblings • More frequnt in high socioeconomic status What is the effect of habit on occlusion between the age of 6 mo. -5.5 yr. Thumb sucking • Production of negative or reduced intra oral pressure • The pattern of sucking is different some children put the thumb only others put thumb and tongue between teeth What is the treatment Determinant factors of habit on occlusion Duration Frequency Intensity Duration At which age the child get the habit The time spent by the child to do the habit Frequency How many times the patient put his thumb in his mouth per day (day , night, both) Intensity • The force used during the sucking habit Treatment of bad habits Clinical examination 1. Type of malocclusion 2. finger Types of malocclusions associated with oral habits Digit examination Clean Larger in dimension callous Don’t ask the patient if he sucks his finger or no The question should be How many times you suck ? Timing of treatment In deciduous dentition? Treatment Mouth breather