Two-Step Extraction of the Lower First Molar for Class III Treatment in Adult Patient

Figure 4

(a) The treatment was conducted initially by the use of Haas expansion appliance; (b, c) the extraction was performed in two steps, first with the extraction of the mesial root of the first molar, followed by the extraction of the distal root after closing the resultant space with a retraction loop.

(a)

(b)

(c)