6.4 Direct and Indirect Provisionals

Provisionals protect the prepared tooth between visits

A provisional restoration is used when a final indirect restoration is not delivered immediately. It may protect a prepared tooth, maintain space, reduce sensitivity, protect soft tissue, support chewing comfort, and preserve appearance. Because patients live with provisionals between visits, they must be handled carefully even though they are not final restorations.

A direct provisional is made chairside, often using a preoperative matrix, impression, shell, or form with provisional material. An indirect provisional is fabricated outside the mouth or prepared before final delivery, then adjusted and cemented as directed. The exact product and workflow vary by office, but the RDA should recognize the support sequence: prepare the form, material, setting timer, trimming support, polishing supplies, cement, floss, cleanup items, and instructions.

The dentist controls tooth preparation, final evaluation, and clinical adjustments as required by scope. The RDA supports the process by preparing materials, maintaining isolation, assisting with removal of excess material as permitted and directed, observing patient comfort, and reporting concerns. A provisional that is loose, rough, open at the margin, too high, or difficult to floss needs attention before the patient leaves.

Provisional evaluation points

Direct provisionals are time-sensitive. Provisional materials can heat, set, lock into undercuts, or distort if handled poorly. The assistant should follow the product instructions and dentist direction. Materials should not be mixed before the tooth, matrix, and field are ready. If the provisional sticks, cracks, or has a void, the RDA reports the issue and supports the correction.

Indirect provisionals still require chairside judgment. Even if a provisional arrives preformed, it must fit the prepared tooth and patient. Cementation must be clean, and excess cement should be addressed according to the dentist's direction and permitted duties. Patients should understand how to care for the provisional, what foods may dislodge it, and when to contact the office.

The exam may use patient language. A patient might say the temporary crown feels bulky, floss catches, the bite feels high, or the edge cuts the tongue. The RDA should not dismiss these concerns. The correct response is to report them to the dentist and assist with evaluation. Patient reports are data, not interruptions.

Study provisionals by their purpose. A provisional is a protective bridge from preparation to final restoration. Every setup item and instruction should support that purpose. If an answer leaves the tooth unprotected, ignores a high bite, skips cement cleanup, or lets the patient leave with a loose provisional, it is usually unsafe.