Implant-Retained Denture Extraction Method: Complications at Direct Reline

A 48-year-old man visited the clinic with complications in the area of a two-implant-retained denture.

Reline procedure was conducted by means of hard relining material right in the dental office. Because of excessive quantity of composite material between the matrix and ball attachments there was no possibility to extract the denture from the patient’s oral cavity. In the left part of the denture no movement was observed, so the procedure was started from the lefmatrix.

Safe extraction of the matrix is the main aim of this method. A correspondent area of the denture was marked by means of a chemical pencil.

A cylindrical composite was extracted on the matrix level with the help of a diamond burr, and thus, the matrix was removed safely (Fig. 1c, d).

Then excessive composite material around the ball attachments was deleted by means of a diamond cone drill. Finally, the denture was removed from the oral cavity gently.

The denture and left matrix can be seen on figure.

Hard relining material was deleted from internal and external denture surfaces. In order to conduct indirect reline and change the denture we applied light silicone impression material to its internal surface. Then the patient was asked to close his mouth without pressing his jaws much in order to avoid displacement of the soft tissues.

After the procedures conducted in a laboratory the state of the denture, its borders, occlusion, and soft tissue adaptation were evaluated. The changed denture can be seen on figure.

The method described has essential advantages. It can be applied in other clinical cases when similar difficulties are observed while working with implant-retained dentures. Besides, this technique does not require application of specific equipment.