In “Jiggling type” of trauma, the occlusal force cause
**Jiggling Type of Trauma**
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**Core Concept**
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The "jiggling type" of trauma refers to a specific mechanism of tooth displacement or luxation caused by an occlusal force that results in a sudden and brief movement of the tooth within its socket. This type of trauma occurs due to the sudden and excessive occlusal force that pushes the tooth in a direction perpendicular to the long axis of the tooth.
**Why the Correct Answer is Right**
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The jiggling type of trauma is characterized by a sudden and brief movement of the tooth, which can cause damage to the periodontal ligament and the surrounding bone. This type of trauma can lead to ankylosis of the tooth, where the tooth becomes fused to the surrounding bone, or it can lead to a more severe injury such as a fracture of the tooth or the surrounding bone. The mechanism of injury involves a sudden and excessive force that pushes the tooth in a direction perpendicular to the long axis of the tooth, resulting in a jiggling or rocking motion of the tooth within its socket.
**Why Each Wrong Option is Incorrect**
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* **Option A:** This option is incorrect because the jiggling type of trauma is not caused by a direct blow to the tooth, but rather by an occlusal force that results in a sudden and brief movement of the tooth.
* **Option B:** This option is incorrect because the jiggling type of trauma is not characterized by a slow and gradual movement of the tooth, but rather by a sudden and brief movement.
* **Option C:** This option is incorrect because the jiggling type of trauma is not caused by a force that pushes the tooth in a direction parallel to the long axis of the tooth, but rather in a direction perpendicular to the long axis of the tooth.
**Clinical Pearl / High-Yield Fact**
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It is essential to recognize the jiggling type of trauma as a distinct entity from other types of tooth luxation or displacement, as it has a specific mechanism of injury and can result in unique complications such as ankylosis or tooth fracture.
**Correct Answer:**