###### Abstract  
The aim of the present study is to represent the orthodontic treatment of a young patient with a skeletal Class III malocclusion(Wits Appraisal \(-9\) mm), in which the extractions of the first lower premolars were performed to obtain a class III camouflage using direct temporary anchorage devices (TADs). The patient reported a history of three years of orthodontic treatment at another clinic and the radiographic evaluation revealed an important impairment of the upper root incisors. A treatment was performed with a fixed appliance in the upper and lower arches using an archive sequence of 0.16 CuNiTi, \(19\times 25\) CuNiTi, \(19\times 25\) S8 and was carried out in 18 months. Post-treatment records of our patient show a control of facial esthetics from the frontal and lateral perspectives, with a harmonious soft-tissue profile. A Class I canine was achieved and her overbite and overjet were normalized by retracting the mandibular anterior teeth and carrying out a bodily mesialization of the posterior sector into the extraction space. In conclusion, the \"pseudoalkylosis system\" used in this case allowed the desired result to be achieved with minimal change to the lower incisal inclination and without overloading the anterior upper and lower sectors, thus reducing the risk of further root resorption and patient compliance.  
skeletal anchorage; class III malocclusion; extraction treatment 202212246420 Despite the large spread of orthodontic miniscrews, their success rate can still be improved. According to the literature, the efficacy of sectional appliances in conjunction with TADs in managing complex post-extraction space closure has been demonstrated [9,10]. The clinical outcomes are influenced by many factors such as the miniscrew's characteristics, surgical technique, clinician experience, bone quantity and quality, primary stability, oral hygiene and biomechanics [11,12].  
There are two principal methods of connecting miniscrews to the patient's dentition: one is the direct loading of the miniscrew, the \"direct anchorage\" approach, in which an elastic module is linked from the miniscrew to the tooth, or group of teeth, that are supposed to be moved; the other results from the indirect loading of the miniscrew to prevent tooth movement in the \"anchorage segment.\" There is an extraordinary advantage to the rigid indirect setup when choosing the insertion site [13,14].  
The miniscrew-supported orthodontic pseudo-ankylosis (MSOPA) is a procedure proposed in the literature in which orthodontic miniscrews link to a neighboring tooth with a rectangular stainless steel sectional wire for indirect anchoraging. The connection between the teeth and the temporary anchorage device (TAD) locks the anchor unit in the pretreatment position thus providing the desired movements [15,16].  
This article shows the orthodontic treatment of a young patient diagnosed as developing skeletal Class III in which the first lower premolar extractions were performed to obtain a class III camouflage.  
TheMSOPA technique has been shown to close extraction spaces by bodily mesialization of the posterior sector without the over-retraction of the lower incisors and with a significant reduction in compliance.