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ePaper created 2015-03-07, 18:13:20 | version 1.33.01
case report _ CT in treatment planning I caused a lack of blood supply to the pulp of the left centralincisorcanbeobservedintheimage,heldbya haemostat (Fig. 14). Afterwards, preparation for retrograde root filling was performed using a Satelec ultrasonic system and theappropriatehandpieceforthissurgery.Retrograde rootfillingwasperformedwithSuperEBA(Bosworth), thereby achieving sealing of the canal at apical level (Figs. 15 &16). The flap was closed with three silk su- tures (Fig. 17), which were removed after seven days. Supernumerary tooth after extraction can be ob- served in the picture (Fig. 18). Twomonthsaftertheintervention,internalwhiten- ing was performed to improve the colour of the inci- sor. The last two images show the clinical appearance (Fig. 19) and a radiograph (Fig. 20) three years post- treatment. _Discussion CT scans, which have been widely used in endo- dontic diagnostics for fractures and fissures, for ex- ample, and in implantology, are not yet commonly used in surgical planning to obtain diagnostic and anatomical data. The relevant and detailed informa- tion that this imaging technique provides, especially regarding the position of supernumerary teeth, is proof that it should form part of the protocol during surgical planning. The second point of discussion is the pathway used to approach the supernumerary tooth. We could have used a palatal pathway, but the CT scan revealed that the vestibular pathway was less risky, provided greater visibility and better respected the important anatomical structures, such as the adja- cent teeth, without injuring them by accident and risking an iatrogenic injury. I 29cone beam1_2015 Fig. 10 Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15 Fig. 16 Fig. 17