Large Mandibular Cysts Research Articles

Effectiveness of bone plate reduction combined with resorbable plate fixation in the treatment of large mandibular cysts.

This study aims to observe the clinical effect of bone plate reduction in combination with a resorbable plate on large mandibular cysts. Between October 2017 and September 2022, patients with large mandibular cysts in the presence of labial and buccal cortical bone were involved in the study. Intraoral approach was performed for bone plate reduction. Cone beam computed tomography (CBCT) scan was reviewed at 3, 6, and 9 months postoperatively to observe postoperative complications. Osteogenic results were assessed at these times to determine the clinical outcomes of this procedure. Eleven cases with large mandibular cysts in the presence of cortical bone were evaluated. The average thickness of the cortical bone on the labial and buccal sides was measured to be about (1.98±0.37) mm before surgery, with a mean value of (0.73±0.17) mm at the thinnest part of the plate and up to 0.51 mm at the thinnest part of the plate. The cystic cavities were well revealed during the surgeries, which were completed successfully. Postoperatively, the wounds healed in one stage without infection. The percentages of cyst shrinkage were 20.01%, 41.76%, and 73.41% at 3, 6, and 9 months after surgery, respectively. Quantitative measurement of bone mineral density in the jaws by CBCT with MIMICS software. The bone mineral densities of the adult bone were 313.78, 555.85, and 657.45 HU at the 3, 6, and 9 month time intervals, respectively. No significant change in the patient's maxillofacial appearance were observed from the preoperative period as assessed by the patient's and observer's visual analog scale. Bone plate reduction is an effective treatment for large mandibular cysts of the oral and maxillofacial region with the presence of cortical bone.

Management of large mandibular periapical cyst by cortical bone preservation: a case report

<p> </p><span lang="EN-IN">Management of large periapical cysts often require removal of overlying lateral cortical bone to gain access. We report a case in which huge periapical cyst was treated using a novel technique to preserve the overlying lateral cortical bone to facilitate faster healing of the defect. </span>

Application of a new drainage plug for large mandibular cysts after fenestration decompression

In order to improve the postoperative decompression and drainage of large mandibular cysts after fenestration decompression, a new drainage plug was designed and its feasibility for clinical application was explored. A total of 74 patients with large mandibular cysts requiring fenestration decompression were included and randomly divided into the control group (n=34) and model group (n=40). Patients in the control group were given a conventional plug, while patients in the model group were given the new silicone drainage plug. The drainage plug mold was printed using 3D printing technology. Subsequently, the mold was filled with silicone material and the drainage tube was placed into the mold to make a drainage plug. The clinical effect of the new drainage plug was assessed, and the postoperative recovery time was compared between the 2 groups. In the model group, the average wear time of the new drainage plug was approximately 13 months. Compared with the control group, the course of treatment in the model group was shortened by approximately 5 months, with a better fit, less food debris, and easier installation and removal. The new drainage plug provides more convenience and better prognosis for patients after fenestration decompression, and holds great promise for clinical application.

Cyst volume changes measured with a 3D reconstruction after decompression of a mandibular dentigerous cyst with an impacted third molar.

The aim of this article is to describe a large mandibular cyst treated with decompression followed by surgical enucleation. Furthermore, we described the utility of cyst volume measurements by using a 3D reconstruction on Cone Beam Computed Tomography (CBCT). The dentigerous cyst is the most common cyst type of epithelial origin, arising from remnants of odontogenic epithelium, asymptomatic and associated with the crown of an unerupted or partially or completely impacted tooth. However, after a long duration and extension of the cyst volume it may provoke significant bone resorption, cortical expansion, tooth displacement and the vitality of neighboring teeth may be affected. The regular treatment of this lesion is enucleation and extraction of the involved tooth. Marsupialization and decompression are proposed when the volume of the cyst is well developed to release the cystic pressure and allow the bone cavity to progressively decrease in volume with the gradual apposition of bone. This report presents a large dentigerous cyst related to impacted mandibular third molar of a 21-year-old male patient. The cyst was treated successfully by decompression and later by surgical enucleation with surgical extraction of the related molar. In conclusion, the combination of decompression and surgical approach showed on the three-dimensional CBCT investigation a significant correlation between the treatment and volume reduction of the cyst. The clinical case described allows us to observe bone formation after decompression and surgical enucleation was performed with less risk on vital anatomic elements.

Preoperative decompression in treatment of large cystic lesions of the jaws

The cysts of the jaws are a common pathological process in the human organism. The aim of this study is to discuss the perspective effect of the treatment of large mandibular cysts, in which we have applied decompression as the first stage of their operative treatment. MATERIALS AND METHODS: Subjects of the study are 11 patients with large cystic lesions of the mandible. We used the decompression method as the first stage of their operative treatment. RESULTS: The effect of the decompression was monitored radiologically. Changes in the size of the lesion and the bone density were noticed.

The effect of Nanobone® in combination with platelet rich fibrin on bone regeneration following enucleation of large mandibular cysts

ObjectiveThis study was performed to evaluate the healing kinetics of combining Nanobone® and PRF following enucleation of large mandibular cysts. Materials and methods15 patients with large mandibular odontogenic cysts were treated by enucleation and grafting the bone defects by a combination of Nanobone® and PRF. Post-operative clinical and radiographic follow-up were performed. The change in the surface area and bone density of the bone defects was measured using cone beam computerized tomography (CBCT) immediately post-operatively, and after 6 and 9 months. ResultsAccelerated wound healing was observed in all cases without any signs of post-operative complications. On the 9th month post-operatively the surface area decreased by 51% and there was an increase of 50.8% in bone density. ConclusionNanobone®/PRF combination accelerated bone healing and improved the quality and quantity of regenerated bone.

A Technique for Long Term Decompression of Large Mandibular Cysts

Decompression is a conservative treatment that has frequently been used in the treatment of large odontogenic cysts. Techniques described in the recent literature have involved only fixation of a stent to soft tissue. In the present investigators' experiences, this technique has a high failure rate because of the dislodgement of the stent, due to tearing of the sutures over the course of a long-span treatment period. This report describes the use of a molded plastic stent that is fixated to bone and soft tissue, allowing access for daily irrigation during the long-span treatment period.

Management of large cystic lesions of the mandible by decompression: Sri Lankan experience

Objective: Our aim was to evaluate prospectively the effects of decompression as the primary treatment of large mandibular cysts, irrespective of their histological type and to determine the course of healing and the changes that occur in the lining epithelium after the decompression. Methods and materials: Ten patients with large mandibular cysts comprised the study group (Keratocysts, six; Ameloblastoma, three; Sialo odontogenic cyst, one). Initially, a polyethylene tube was inserted and a biopsy was taken from the cystic wall.

P.068 Treatment of a large mandibular cyst with enucleation and rehabilitation with dental implants

This study, based upon the histologic examination of 969 radicular cysts, suggests that the vast majority of radicular cysts undergo resolution following conservative endodontic therapy. The mechanism involved in this resolution may be the dissolution of epithelial lining due to the inflammatory exudate. It is suggested that during endodontic therapy instrumentation should be carried slightly beyond the apex.

Synthetic, pure-phase beta-tricalcium phosphate ceramic granules (Cerasorb ®) for bone regeneration in the reconstructive surgery of the jaws

The aim of this study was to investigate the long-term effect of the ceramic β-tricalcium phosphate (β-TCP) at different sites of alveolar reconstruction and to evaluate its properties. From 1997 to 2002, β-TCP was implanted as bone substitute in 152 patients using a standardized study protocol. Main indications were the filling of large mandibular cysts ( n = 52), secondary and tertiary alveolar cleft grafting ( n = 38), periodontal defects ( n = 24) and maxillary sinus floor augmentation ( n = 16). For defects exceeding 2 cm in diameter, β-TCP was combined with autologous bone taken from the retromolar area, the maxillary tuberosity or the chin region. A radiological, clinical and ultrasonographical examination was carried out 4, 12 and 52 weeks postoperative. In 16 cases, biopsies were taken after 12 months indicating complete bony regeneration. While wound-healing disturbances occurred in 9.2% of cases, partial loss of the bone substitute material was found in 5.9%, while total loss occurred in only 2%. Complete radiological replacement of β-TCP by autologous bone was found after approximately 12 months, indicating its osteoconductive properties. Because of its versatility, low complication rate and good long-term results, synthetic, pure-phase β-TCP is a suitable material for the filling of bone defects in the alveolar region.

Conservative treatment of large cystic lesions of the mandible: a prospective study of the effect of decompression

Our aim was to evaluate prospectively the effects of decompression as the primary treatment of large mandibular cysts, irrespective of their histological type. Twenty patients with large mandibular cysts completed treatment successfully. After a mean duration of decompression of 446 days, cysts had shrunk by a mean of 81%. Mean follow-up was 527 days after removal of the decompression stent and removal of the cyst. There were no recurrences. The advantages of this approach are simplicity, immediate gathering of information on the type of cyst with simultaneous start of treatment, low morbidity and low incidence of complications during treatment. Despite the length of the treatment, we recommend the use of decompression stents in the treatment of large mandibular cysts.

Surgical-prosthetic treatment of large mandibular cysts

This paper presents a combined surgical-prosthetic procedure of reconstructing mandibular bone defect in a 53 year old patient, following enucleation of a mandibular cyst (Cystectomy Partsch II). After a thorough diagnostic evaluation, a surgical procedure was planned with the particular attention to the nature of the disease, patient's condition, size and extension of the cyst, tissue loss, and the possibilities of prosthetic management of a mandibular bone defect with partial postresection dental prosthesis. It is of great importance to point to the significance of teamwork of a maxillofacial surgeon and a specialist in prosthodontics. This kind of cooperation provided very effective and less risky soft tissue, as well as bone tissue regeneration (osteogenesis). The patient's recovery was fast, and he could return to his daily activities and work without significant changes regarding quality of life after surgery and prosthetic treatment.

Spontaneous bone regeneration after enucleation of large mandibular cysts: A radiographic computed analysis of 27 consecutive cases

Purpose: This study evaluated the spontaneous bone healing after enucleation of large mandibular cysts subjectively and with a computed analysis of postoperative panoramic radiographs. Patients and Methods: Twenty-nine patients had large mandibular cysts treated by surgical enucleation. Postoperative clinical and radiographic examinations were performed at 6, 12, and 24 months in 27 patients. Bone regeneration and reduction of the residual cavities and bone density were evaluated with a computed analysis of preoperative and postoperative panoramic radiographs. A subjective and clinical radiographic evaluation of the healing process also was performed. Results: Uneventful healing and spontaneous filling of the residual cavities was obtained in all cases. The computed analysis of the postoperative radiographs showed mean values of reduction in size of the residual cavity of 12.34% after 6 months, 43.46% after 12 months, and 81.30% after 24 months. The increase in bone density was 37% after 6 months, 48.27% after 12 months, and 91.01% after 24 months. Conclusion: Spontaneous bone regeneration can occur in large mandibular cysts without the aid of any filling materials. This simplifies the surgical procedure, decreases the economic and biologic costs, and reduces the risk of postoperative complications. © 2000 American Association of Oral and Maxillofacial Surgeons

下顎骨嚢胞から発生した顎骨中心性癌の１例

We report a case of intra-osseous carcinoma arising from a mandibular cyst. An 81-year-old woman visited our hospital because of a right mandibular swelling. Radiographic examination showed a multilocular radiolucent lesion and bone expansion, extending from the midline to the right mandibular angle. The clinical diagnosis was a mandibular cyst and marsupialization was performed. The histopathological specimen showed a cyst wall with an epithelial layer and connective tissue. After marsupialization, the swelling and the radiolucent area of the mandible decreased. However, about 7 months later, the mesial region of the lesion became swollen again, and it was biopsied. At that time, we obtained a pathological diagnosis of squamous cell carcinoma.Marsupialization does not permit histopathological examination of all sites of the lesion. Therefore, when it is performed for large mandibular cysts such as in our case, we should consider the posibility of an intra-osseous carcinoma arising from the lesion.

Late results following the Brosch procedure for treating large mandibular ramus cysts

Late results following the Brosch procedure for treating large mandibular ramus cysts

Fractures of the hyoid bone complicating facial fracture: a case report

A case is reported of a 16-year-old youth who sustained a bilateral fracture of the lesser cornua of the hyoid bone and bilateral fractures of the mandible, complicated by the presence of a large mandibular cyst, following an assault. The importance of excluding the possibility of fractures of the hyoid bone by clinical and radiographic examination in patients with multiple injuries is stressed, and the clinical findings in such a case are described.

A large periodontal cyst of the mandible

The case of a large mandibular cyst in a 72-year-old edentulous man has been presented. Diagnosis, management, and postoperative care have been described.