|Year : 2018 | Volume
| Issue : 2 | Page : 166-170
Multidisciplinary approach in management of large-infected periapical cyst
Saida Ziada1, Chebil Mohamed2, Nesrine Tebbeb1, Abdelmoumen Ehsen1, Bagga Sana1, Aguir Najet1, Bhour Lotfi1
1 Department of Conservative Dentistry and Endodontics, Dental Clinic of Monastir, Monastir, Tunisia
2 Department of Fixed Prosthodontics, Dental Clinic of Monastir, Monastir, Tunisia
|Date of Web Publication||5-Dec-2018|
Dr. Saida Ziada
Department of Conservative Dentistry and Endodontics, Dental Clinic of Monastir, Avenue Avicenne 5019, Monastir
Source of Support: None, Conflict of Interest: None
Radicular cysts are the most commonly occurring cystic lesions in the oral cavity. The management of periapical localized cysts requires conventional nonsurgical root canal therapy. However, a multidisciplinary approach involving Endodontist and Oral surgeon holds the key to treat a large radicular cyst. This article aims to report a successful multidisciplinary management of a large-infected cyst, which was associated with maxillary central incisor with open apex.
Keywords: Biodentine®, cone beam computed tomography, enucleation, infected radicular cyst, root canal treatment
|How to cite this article:|
Ziada S, Mohamed C, Tebbeb N, Ehsen A, Sana B, Najet A, Lotfi B. Multidisciplinary approach in management of large-infected periapical cyst. Endodontology 2018;30:166-70
| Introduction|| |
The incidence of periapical cysts has been reported 15% to 42% of all periapical lesions,, determining whether periapical radiolucency is a cyst or a periapical granuloma cannot be done with tridimensional radiographic methods. Periapical cysts can be classified into two types: the periapical true cyst and the periapical pocket cyst.
The true cysts have contained a lumen without a continuous epithelial lining, and so they are isolated from the tooth. Pocket cysts have contained a lumen which is opened to the root canal of the affected tooth.
Having their self-sustaining nature, true cysts probably does not heal by nonsurgical endodontic therapy, and always need a surgical intervention to remove cyst epithelium by the enucleation.
This article aims to report a successful multidisciplinary management of a large-infected cyst, which was associated with maxillary central incisor with open apex.
| Case Report|| |
An 18-year-old male patient was referred to the Department of Conservative Dentistry and Endodontics, at the Clinic of Dental Medicine of Monastir, with the chief complaint of pain and swelling on the left side of the face.
The patient reported a history of trauma in upper anterior teeth, which had occurred >7 years back and only the root canal of the central left incisor had been endodontically treated without a technique of apexification. The patient consulted a private clinic 6 months prior for a similar complaint, and access cavities of teeth 21.22 and 23 were left open.
Extraoral examination revealed a nonwell-defined swelling in the canine space swelling of the left side of the face, extending into and involving the left eye [Figure 1].
|Figure 1: Canine space swelling of the left side of the face, extending into and involving the left eye|
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Intraoral examination showed a symptomatic palatal swelling extended from the left central incisor to the distal part of the upper left canine [Figure 2].
|Figure 2: A palatal swelling extended from the left central incisor to the distal part of the left canine|
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Access openings of teeth 21.22 and 23 were found open, which were painful to percussion and exhibited Grade 2 mobility. Pus was flowing through the buccal sulcus of the teeth.
Radiographic examinations were conducted and showed a large well-circumscribed radiolucent lesion involving teeth 21.22 and 23 and the extrusion of the gutta-percha from the open apex of the central left incisor [Figure 3].
|Figure 3: Periapical radiograph showed a large well-circumscribed radiolucent lesion involving teeth 21, 22, and 23 and the extrusion of the gutta-percha from the open apex of the central left incisor|
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The patient was subjected to cone beam computed tomography (CBCT) scan for further exploration of the finding, to check proximity or any involvement of lesion with nasal floor, since lesion was extensive. CBCT showed that the nasal floor was intact and the radiolucency was seen in relation with tooth 21 in sagittal and coronal planes [Figure 4]a, [Figure 4]b, [Figure 4]c, [Figure 4]d.
|Figure 4: (a) Cone beam computed tomography scan images of the lesion showing 21 involvements with lesion in sagittal plane. (b) Cone beam computed tomography scan images of the lesion in axial plan. (c) Cone beam computed tomography scan images of the lesion in transverse plan. (d) Cone beam computed tomography scan images of the lesion in panoramic slice|
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The dimension of the lesion was measured using measurement scale which was around 3 cm *4.5 cm in maximum diameter.
On the basis of history, clinical examination and radiographic finding, a provisional diagnosis of infected periapical cyst related to tooth 22 was made.
Informed consent from the patient was gotten on the same day. After isolation with rubber dam, the root canal was cleaned and shaped using rotary nickel-titanium RevoS™ (Micro-Mega).
The working length was determined using radiograph. During preparation, the canals were irrigated with 2.5% sodium hypochlorite [Figure 5].
The root canals were dressed using calcium hydroxide for 1 week. The access cavities were sealed with temporary restoration. Root Canal Filing was achieved in a next appointment. The filling of tooth 21 with open apex was performed using Biodentine®as an apical plug and obtura system injection of thermoplasticized gutta-percha technique [Figure 6]a, [Figure 6]b, [Figure 6]c.
|Figure 6: (a) Gauging of the root canal of the tooth 21. (b) Biodentine® Apical plug. (c) Thermopacting gutta-percha technique|
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The teeth 22 and 23 were then obturated with gutta-percha and zinc oxide eugenol sealer using cold lateral condensation technique. The access cavities were sealed with composite resin. An immediate radiographic follow-up showed the successful orthograde filling of the involved teeth [Figure 7].
In a next visit, surgical enucleation of the cyst, elimination of the foreign body extruded from the apex of the 21. It was identified as gutta-percha point. Apicoectomy and retrograde filling of involved tooth were performed [Figure 8]a, [Figure 8]b, [Figure 8]c, [Figure 8]d, [Figure 8]e.
|Figure 8: (a) A full thickness mucoperiosteal flap was reflected. (b) After Enucleation of cystic lesion and apicoectomy. (c) Elimination of the foreign body which was identified as gutta-percha point. (d) Retrograde filling of the tooth 22 was performed with Biodentine®. (e) Flap closure was done with 3.0 silk|
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After administration of local anesthesia, cervicular incision was made in labial region from tooth 21–23. A full thickness mucoperiosteal flap was reflected [Figure 8]a, and a large bony defect with open apex of 22 was seen clinically.
A complete curettage, with granulation tissue removal and enucleation of cystic lesion, were done. At the same time, an apicoectomy of tooth 22 was accomplished [Figure 8]b and the gutta-percha extruded from the apex of the 21 was eliminated [Figure 8]c.
A retrograde filling of the tooth 22 was performed with Biodentine® [Figure 8]d. Flap closure was done with 3.0 silk [Figure 8]e.
Granulation tissue was sent for histopathological evaluation [Figure 9].
An appointment after 10 days has been set for the removal of stitches and no symptoms or signs were noted [Figure 10]a and [Figure 10]b.
|Figure 10: (a) Removal of stitches. (b) Clinical follow-up: Extraoral view|
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The histopathology report confirmed the provisional diagnosis of an infected periapical cyst. The patient was recalled after 3, 6, and 8 months. On clinical follow-up, the patient was comfortable without symptoms. Follow-up radiographs were taken and showed the appreciable healing of the lesion [Figure 11]a, [Figure 11]b, [Figure 11]c.
|Figure 11: (a) Three-month follow-up radiographs. (b) Six-month follow-up radiographs. (c) Eight-month follow-up radiographs showed the appreciable healing of the lesion|
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| Discussion|| |
The most frequent cystic lesion affecting human jaws is the radicular cyst with a percentage ranging from 52% to 68%.
It can occur in relation with all sites of the jawbone but more frequent in the maxilla., The etiology is the infection of the periradicular space either because of trauma or caries, usually sterile unless it is secondarily infected. Swelling is the most important clinical symptom with a combination of pain. These manifestations are found in this case report.
The CBCT has an important value in radiographic examination in endodontics and diagnosis of periapical lesions. In this case report, CBCT scan was demanded for further exploration of the finding and to check proximity or any involvement of lesion with nasal floor, since lesion was extensive. It showed that the nasal floor was intact and the radiolucency was seen in relation with tooth 21 in sagittal and coronal planes. The dimension of the lesion was measured using measurement scale (the periapical index) which was around 3 cm *4.5 cm in maximum diameter.
A study compared the differential diagnosis of large periapical lesions (granuloma versus cyst) to traditional biopsy using CBCT. Large lesions were scanned, and a preoperative diagnosis based on gray value measurements of the imaged lesion area was made. After surgery, a biopsy report was obtained and compared to the CBCT diagnosis. In 13 out of 17 cases, the diagnosis coincided. In 4 out of 17 cases, the CBCT read cyst with the oral pathologist's diagnosis was granuloma. Thus, the CBCT may provide a more accurate diagnosis than biopsy and histology providing a diagnosis without invasive surgery and/or waiting a year to see if nonsurgical therapy is effective.
Actually, there is gradual change in the attitude to the surgical treatment of periapical lesions. Some authors support that the immune system promotes repair and lesion might recede by the mechanism of apoptosis similar to the resolution of inflammatory apical pocket cysts without any surgical intervention.
Caliskan reported the good prognosis of the large cyst-like periapical lesions after nonsurgical root canal treatment using calcium hydroxide medicament. Kadam et al. reported also that “the current concept in the management of periapical cysts is using nonsurgical means. However, depending on size and extent of lesion, surgical management might be necessary, for achieving success.”,
In view of the clinical and radiographic signs found in this case, the decision of a surgical management of the periapical cyst was taken.
In fact, surgical treatment was indispensable and had the following advantages:
- Recalling that our patient suffered from two infectious episodes in the same site. The surgery will allow a complete resection of the infected tissues. Thus, it promotes complete healing
- The elimination of the gutta cone extruded from the apex of the 21 can only be performed with surgical access
- Apicoectomy and retrograde filling of involved tooth by the Biodentine™ allowed the hermetic sealing of the canal system. It is a necessary condition for preventing the recidivism.
The surgical approach to cystic lesions of the jaws is either marsupialization or enucleation. The treatment of choice depend on several parameters: size and localization of the lesion, bone integrity of the cystic wall and its proximity to vital structures. Mineral trioxide aggregate and Biodentine® are widely used as root-end filling materials.
In the current case, the lesion was enucleated along with curettage, followed by apicoectomy and placement of Biodentine® as root-end filling material.
In this clinical report, endodontic therapy with a thorough irrigation, cleaning, shaping, and filling of the canal space followed by the enucleation surgery and the elimination of the foreign body holds the key to success the management of this large-infected periapical cyst.,
Clinical and radiographic follow-up plays an important role in the long-term success of the treatment of these cystic lesions and must be part of the therapeutic arsenal of both the endodontist and the oral surgeon. It allows following the healing of the lesion and as a consequence to avoid the failure of the treatment.
| Conclusion|| |
Actually, there is gradual change in the attitude to surgical treatment of periapical lesions. The current concept in the management of radicular cysts is using nonsurgical treatment. However, the surgical intervention can be justified by several arguments.
In this clinical report, the periapical cyst was treated successfully using a multidisciplinary approach. Endodontic therapy along with a thorough irrigation, cleaning, shaping, and filling of the canal space followed by the enucleation surgery and the elimination of the foreign body holds the key to success the management of large radicular cysts.
Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent forms. In the form, the patient has given his consent for his images and other clinical information to be reported in the journal. The patient understands that name and initials will not be published, and due efforts will be made to conceal identity, but anonymity cannot be guaranteed.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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