What is the primary cause of post crown cementation sensitivity?

What is the primary cause of post crown cementation sensitivity?

• A. Microleakage
• B. Pulpal inflammation
• C. Improper impression technique
• D. Inadequate bonding

Answer: (A)

The primary cause of post crown cementation sensitivity is microleakage. This phenomenon occurs when there are small gaps or openings at the interface between the tooth structure and the crown, allowing for the ingress of fluids, bacteria, and other potentially irritating substances. These gaps can lead to changes in temperature and osmotic pressure that the pulp may react to, resulting in sensitivity. Microleakage can result from inadequate sealing provided by the cement used or from imperfections in the crown margin’s fit. If these margins do not completely seal, the patient may experience discomfort during temperature changes, eating, or exposure to sweets. Other factors, such as pulpal inflammation, improper impression technique, and inadequate bonding, can contribute to certain levels of post-operative sensitivity. However, they do not directly lead to the continuous exposure of the pulp to external stimuli the way that microleakage does. Thus, while they may play a role in the overall experience of dental sensitivity, microleakage stands out as a primary cause that can consistently lead to discomfort following crown placement.

The primary cause of post crown cementation sensitivity is microleakage. This phenomenon occurs when there are small gaps or openings at the interface between the tooth structure and the crown, allowing for the ingress of fluids, bacteria, and other potentially irritating substances. These gaps can lead to changes in temperature and osmotic pressure that the pulp may react to, resulting in sensitivity.

Microleakage can result from inadequate sealing provided by the cement used or from imperfections in the crown margin’s fit. If these margins do not completely seal, the patient may experience discomfort during temperature changes, eating, or exposure to sweets.

Other factors, such as pulpal inflammation, improper impression technique, and inadequate bonding, can contribute to certain levels of post-operative sensitivity. However, they do not directly lead to the continuous exposure of the pulp to external stimuli the way that microleakage does. Thus, while they may play a role in the overall experience of dental sensitivity, microleakage stands out as a primary cause that can consistently lead to discomfort following crown placement.