Table 1.

Number of endodontic instruments or dental items involved and the percentage of occurrence of either aspiration or ingestion (Susini and Camps, 2007).

	Aspiration	Ingestion
Endodontic file	1	57
Barbed broach	–	27
Bur	–	125
Temporary crown	5	15
Prosthesis	27	136
Matrix band	–	14
Piece of amalgam	2	17
Screw post	3	9
Extracted tooth	–	7
Orthodontic bracket	–	8
Inlay core	7	49
Total	44	464