What is one of the critical reasons for overextending a temporary crown gingivally?

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The practice of overextending a temporary crown gingivally is primarily done to protect the gingival margins. When a temporary crown is designed with a slight extension beyond the prepared tooth, it can help create a physical barrier against potential irritants, which might lead to gingival inflammation or recession. This overextension acts as a safeguard for the delicate soft tissue surrounding the tooth, especially during the interim period while waiting for the final crown placement.

By ensuring that the temporary crown adequately covers the gingival margins, there is a reduced risk of bacteria and plaque accumulation in that area, thereby promoting gingival health and minimizing the chances of complications. This also aids in the prevention of any potential soft tissue irritation that could occur during the time the patient is without a definitive restoration.

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