PMC5573483_01
Gutta-percha cone is used to trace the origin of the sinus
tract.
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fig1-a
The path of the sinus tract was confirmed by passing a gutta-percha cone through the sinus which led to the upper left first premolar tooth, which presented a negative response in the pulp vitality tests (Figure 1a and Figure 1b). AH-26 root canal sealer (Dentsply De Trey, Konstanz, Germany) using the lateral condensation technique. At the 1-year recall, complete healing of the extraoral fistula was observed (Figure 1c). Postoperative radiologic control showed the repair of periapical tissues (Figure 1d).
PMC5573483_02
Radiographic view shows gutta-percha cone pointing to the
apical region of the maxillary first premolar.
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fig1-b
A healthy 38-year-old female patient was referred to our department with a cauliflower like cutaneous lesion in the submental region present for one year (Figure 2a). Radiographic examination revealed circular radiolucent lesions associated with the lower left and right lateral incisors and a broad radiolucency associated with the lower right and left central incisors (Figure 2b). At one and a half year-recall, healing of the skin lesion had occurred (Figure 2c). Orthopantomographic examination showed the complete repair of the periapical tissues (Figure 2d).
PMC5573483_03
Completely healed
skin lesion.
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fig1-c
A healthy 17-year-old man sought treatment with a chief complaint of purulent and hemorragic discharge from the left submandibular region for the last 15 months (Figure 3a). Radiologic examination with a gutta-percha cone introduced through the sinus opening, revealed the relation of the periapical radiolucency of the lower left first molar tooth (Figure 3b). Five months later, the cutaneous lesion had completely healed with a linear scar formation (Figure 3c). A marked reduction in the size of the periapical lesion was noticed in the radiographic examination, which is an indication of satisfactory healing (Figure 3d).
PMC5573483_04
Radiographic appearance after 12 months.
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fig1-d
Path of the sinus tract was confirmed by passing a gutta-percha cone through the sinus which led to the lower right first molar tooth (Figure 4a and Figure 4b). At the 8-month recall, healing of the extraoral fistula had occurred with only a minimal scar (Figure 4c). Radiographic examination showed the complete repair of the periapical tissues (Figure 4d).
PMC5573483_05
Periapical radiolucencies in relation with the apices
of anterior incisors.
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fig2-a
Radiologic examination with a gutta-percha cone introduced through the sinus opening revealed a periapical radiolucent area in relation with the lower left central and lateral incisors (Figure 5a and Figure 5b). Root canal treatment was performed in the similar way as described in cases 3 and 4 (Figure 5c). After 1 month, the skin lesion had completely healed with minimal cicatrization (Figure 5d).
PMC5573483_06
Cauliflower like skin lesion on the chin
of the patient.
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fig2-b
Radiologic examination with a guttapercha cone introduced through the sinus opening revealed a periapical radioloucent area in relation to the mesial root of the lower left first molar tooth (Figure 6a and Figure 6b). AH-Plus (Dentsply De Trey, Konstanz, Germany) root canal sealer using the lateral condensation technique (Figure 6c). After 20 days, healed sinus tract with marked cicatrization was observed (Figure 6d).