In which procedure is the patient usually placed in an upright position?

In the procedure of taking diagnostic impressions, the patient is typically placed in an upright position to ensure accuracy and comfort. This positioning helps in properly aligning the impression trays with the arch of the teeth and facilitating easy access for the dentist or dental assistant. An upright position allows for better control over the impression material and minimizes the risk of gagging, which can be a concern during the impression process.

For composite procedures, although the patient may sometimes be seated upright, the position can vary depending on the specific area being treated. Removal of a posterior tooth usually requires the patient to be reclined or in a semi-reclined position for better access and visibility for the practitioner. Polishing the teeth after a prophylaxis may also be performed with the patient in a slightly reclined position to ensure comfort and effective access to the entire mouth while ensuring the dental professional retains a good view and control over the tools being used.