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Key Habits Contributing to Malocclusion and Their Impact on Dental Health

The development of malocclusion can be significantly influenced by certain oral habits. This article discusses critical habits such as digit sucking, lower lip sucking and biting, mouth breathing, tongue thrusting, nail biting, and extended use of pacifiers or bottles. Factors that determine the severity of damage to teeth and investing tissues include the frequency, duration, and intensity of these habits. Early intervention can prevent long-term consequences to dentition. Techniques to help break these habits are also explored.

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Key Habits Contributing to Malocclusion and Their Impact on Dental Health

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Presentation Transcript

  1. Introduction • The following habits could be considered as the most important habits precipitating malocclusion. • Digit sucking • Lower Lip sucking and biting • Mouth Breathing • Tongue Thrust • Nail Biting • Use of Pacifier/bottle feeding

  2. Factors that Affecting the Degree of Damage to Teeth and Investing Tissue • Frequency of habit • The more frequency the more the damage • Duration of habit • The more duration the more the damage • Intensity of habit • Active vs passive

  3. Digit sucking habit

  4. Digit sucking habit • Most prevalent of oral habits, 13% - 100% • If the habit ceases before the permanent teeth begin to erupt, any effects on the dentition are unlikely to be long-term. • If however the habit persists into the mixed and permanent dentition malocclusion • Prolonged digit sucking habit may affect occlusion and dentofacial structures.

  5. Factors • Not all habits will result in tooth movement. It is related to frequency, duration and intensity. • Studies suggest that it only takes very light forces to move teeth, if the force is of long enough duration. • The threshold is believed to be 6 hours.

  6. Maxillary changes

  7. Mandibular changes

  8. Others: -arch assymmetry -increased overjet -anterior openbite -posterior crossbite

  9. How to stop? • Gentle discouragement • Oral appliances/ habit breaker -palatal crib -acrylic appliance on finger

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