Conservative approach to a large dentigerous cyst in an 11-year-old patient.

Dentigerous cyts are form of benevolent odontogenic cyts which are related to crowns of permament teeth. Often, they are described as unilocular radiolucent lesions and barely seen in childhood era. This article aims to show a case about 11 year old boy having a dentigerous cyst associated with the mandibular canine and a premolar. Extraction of the primary molars and marsupialization of the lesion is also included in this method of treatment. After 9 months of the treatment, impacted teeth spontaneously erupted. Therefore, if we aim to manage of dentigerous cysts in children conservatively, marsupialization might be considered as first and foremost treatment method.

Results of combined cyclectomy/trabeculectomy procedure compared with ahmed glaucoma valve implant in neovascular glaucoma cases.

Purpose. Cyclectomy/trabeculectomy and Ahmed glaucoma valve implant are operations suggested for refractory glaucomas. In this study, we have evaluated the outcomes that we observed with these two techniques in neovascular glaucoma patients. Material and Methods. Thirty-five eyes with neovascular glaucomas were included in this study. Ahmed Glaucoma valve (group A) was applied to ten eyes, while cyclectomy/trabeculectomy was applied to 25 eyes (group C/T). Vision, intraocular pressure and complications were evaluated at the end of the first week and after 6 and 12 months. Results. Vision preservations were 80% and 92%, and success rates in reducing intraocular pressure were 50% and 72% for Ahmed glaucoma valve and cyclectomy/trabeculectomy groups, respectively. None of the differences in complication rates was found to be statistically significant. Conclusions. In the surgical management of neovascular glaucoma, cyclectomy/trabeculectomy was shown to be an alternative to Ahmed glaucoma valve operation.

Bilateral choroidal metastases presenting as acute glaucoma crisis.

We report a case of bilateral choroidal metastasis presenting with acute unilateral glaucoma. Primary tumor was found in the lung and choroidal masses in both eyes. Anterior segment neovascularization causing intraocular pressure elevation was the only presenting sign of metastatic choroidal tumor. A painful and hypertensive eye could be symptoms of choroidal metastasis even if no systemic malignancy is encountered.

Cyanoacrylate for wound closure in prosthetic vascular graft surgery to prevent infections through contamination.

PURPOSE: Prosthetic vascular graft infection (PVGI) still occurs at an unacceptably high rate, despite the many measures that have proven effective against infection. The major cause of PVGI is perioperative contamination, which usually occurs before a histological barrier is completed and may threaten graft viability. We assessed the efficacy of cyanoacrylate as a tissue adhesive and barrier against early contamination through the skin. METHOD: A 1 x 0.5-cm Dacron graft was placed subcutaneously under sterile conditions in 16 Sprague-Dawley rats. The skin was closed with polypropylene sutures in eight rats (group A) and with N-butyl 2-cyanoacrylate in eight rats (group B). The closed incisions were then contaminated with 75 x 10(6) cfu/ml methicillin-sensitive Staphylococcus aureus. Microbiological and histopathological assessments were done 7 days later, after the rats were killed. RESULTS: All of the graft cultures from group A (8/8) were positive for S. aureus whereas all of those from group B (0/8) were negative. This difference was significant (p < 0.001). Histological examination revealed denser inflammatory cell infiltration in group A than in group B. CONCLUSIONS: Maintaining skin integrity after closure is of the utmost importance because contamination during the first hours of the procedure may cause PVGI. Cyanoacrylate seems to be a promising molecule not only because of its bacteriostatic effects, but also because it seals the barrier effectively and immediately.

Combined cyclectomy-trabeculectomy procedure for refractory glaucoma.

A new surgical technique for cases of refractory glaucoma is described. The technique has been performed on 42 severely glaucomatous eyes. The technique consists of a partial excision of the ciliary body combined with a trabeculectomy to maintain an effective filtration by several passages. All excised material was verified as ciliary body by an ophthalmic pathologist. The follow-up period was 2 to 5 years. Intraocular pressure decreased after the operation and remained less than 20 mm Hg in 39 eyes. The visual acuity increased in 8 of 42 eyes and remained the same in 32 eyes. Complications were similar to those seen after trabeculectomy. This method is efficient for severely glaucomatous eyes that are difficult to manage with trabeculectomy alone.

Guided osteogenesis using synthetic membranes and alloplastic materials: a pilot study.

OBJECTIVE: The aim of this study was to develop an experimental model for the assessment of bone augmentation, and in doing so, compare the use of beta-tricalcium phosphate (TCP) bone grafts in combination with Gore-Tex augmentation material (GTAM) and GTAM without TCP. METHOD AND MATERIALS: Calvarial sites in eight Sprague Dawley rats were prepared for bone augmentation. Graft materials and Hermann stainless steel bone pins were used for localized bone augmentation. Specimens were subjected to macroscopic and histological evaluation at the sixth week. RESULTS: Bone formation was significantly higher in the group with the graft support. CONCLUSION: TCP bone grafts used in conjunction with supporting pins may contribute to successful bone regeneration by osseoconduction and by maintaining the membrane-created space. At the sixth week, guided bone regeneration utilizing Gore-Tex augmentation material and TCP bone grafts resulted in the formation of viable new bone.