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    Dentigerous cyst with an impacted canine: Case report
    (2011) Agacayak K.S.; Kose I.; Gunes N.; Bahsi E.; Yaman F.; Atilgan S.
    Dentigerous cysts are the second most common developmental odontogenic cysts after radicular cyst. They usually present in the second or third decades of life and these cysts are rarely seen during child hood. Their frequency in the general population has been estimated at 1.44 cysts for every 100 unerupted teeth. According to frequency of impaction, the maxillary permanent canine ranks second only to the third molar, with a prevalence of approximately 2% in the general population. Impacted canines are positioned palatally 85% of the time. The frequency of impaction is three times greater in females than males. In many instances the cyst may be asymptomatic till it attains a large size. It usually presents as a slowly enlarging, sometimes painful swelling; particularly if infected. At radiography, dentigerous cysts appear as well-defined, round or ovoid, corticated, lucent lesions around the crowns of unerupted teeth. The radiographic appearance of such dentigerous cysts is comparable with that of cystic, unilocular odontogenic keratocysts. Treatment includes extraction of the associated tooth and enucleation of the cyst. In this study we present dentigerous cyst that caused by impacted canine.
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    Effect of zoledronic acid application on different graft materials in calvarial bone defect models: An experimental analysis
    (Science Printers and Publishers Inc., 2016) Koparal M.; Gülsün B.; Deveci E.; Agacayak K.S.; Hamidi A.
    OBJECTIVE: To determine the effect of zoledronic acid on graft materials in bone calvarial defects. STUDY DESIGN: Eighty adult (12 weeks) Sprague-Dawley male rats weighing from 300-350 g were divided into groups: calvarial defect, calvarial defect+synthetic graft, and calvarial defect+xenograft. All groups received zoledronate intravenously for a week after surgery and were sacrificed at either 6 or 12 weeks after their operation. The rat calvariae were fixed in 10% neutral buffered formalin before decalcification in 10% ethylenediaminetetraacetic acid for 20 days. Calvarial bone samples were then dehydrated and processed for embedding in paraffin wax. Sections 5 ?m thick were stained with hematoxylin and eosin and examined by light microscopy. RESULTS: The effects of zoledronic acid, a third-generation nitrogen-containing bisphosphonate, on different graft materials in rats with critical-size calvarial defects were analyzed and compared. Significantly less graft resorption was identified in zoledronic acid-treated rats that had received a xenograft than in either the untreated rats or those with a synthetic graft. In the xenograft group primary ossification was visible at week 12, and the graft had entered the bone to a greater extent than in the other experimental groups or in the control group. Osseous structures were also observed more clearly in this group than in the others. CONCLUSION: Zoledronic acid histopathologic bone graft stimulates bone formation. Zoledronic acid may be considered among the therapeutic methods available to improve the bone formation process in calvarial bone formation. © Science Printers and Publishers, Inc.
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    Temporomandibular joint (TMJ) dislocation during intubation and dental procedures
    (2012) Agacayak K.S.; Kose I.; Gulsun B.; Atalay Y.; Yaman F.; Ucan M.C.
    Dislocation of the temporo-mandibular joint (TMJ) is an infrequent condition involving a permanent, to some extent complete, disruption of the joint.1 TMJ dislocation may occur as a result of everyday activities such as yawning or laughing, or during activities that require mouth opening for a prolonged time, such as dental treatment.1 The data in the literature suggest that the lifetime prevalence of chronic TMJ dislocation is about 3%-7% in the general population,2 with a strong female representation.3 Dislocation may be unilateral or bilateral,4 the latter being more frequent.2 These disorders share symptoms characterized by pain in the TMJ area and inability to close the mouth.5 Many techniques have been advocated for the treatment recurrent TMJ dislocation. Nonsurgical approaches have been proposed to prevent excessive abnormal excursions of the condyle including bandages and splints and extra-articular sclerosing agent injections.6 Surgical procedures can be categorized under 2 main headings: 1) procedures that enhance the path of condylar movement; and 2) those that inhibit it.7.