No abstract available.
Dentigerous Cyst*

No abstract available.
Dentigerous Cyst*

Complex odontoma is a relatively rare dental dysplasia. In particular, a complex odontoma with dentigerous cyst is seldom observed. A case of complex odontoma with dentigerous cyst is reported in this paper.
Dentigerous Cyst ; Humans ; Odontoma

dentigerous cyst. The purpose of this study was to evaluate a comparative immunohistochemical expression of Ki-67 as a proliferative marker in the OKC associated with or without impacted tooth. In addition, we have also been investigated with regard to the proliferative activity comparing the unilocular and multilocular varieties of the OKC. The material for this study consisted of thirty-two cases of OKCs (OKC with impacted tooth, n=16; OKC without impacted tooth, n=16) and ten cases of dentigerous cysts as a comparison. The results revealed that the proliferative activity of OKCs with impacted tooth was higher than those of dentigerous cysts. However, there was no correlation between Ki-67 immunoreactivity and association with or without impacted tooth in 32 cases of OKCs. In addition, this present study showed that there was no correlation between the unilocular and multilocular varieties of the OKCs in proliferative activity.]]>
Dentigerous Cyst ; Tooth, Impacted

Dentigerous cyst of maxilla is a rare disease in department of otorhinolaryngology. More than 2 week persistent infection of the cortex that is surrounded by dense bone and then begins absorption causing the formation of dentigerous cyst. One tooth germ or multiple tooth germs can be seen in the cysts, mostly in the third molar area and canine area. However, it is extremely rare that so huge dentigerous cyst of maxilla, in which include three additional teeth, that is why we report it.
Child ; Dentigerous Cyst ; Humans ; Male ; Maxilla ; pathology

OBJECTIVES: Odontogenic keratocysts (OKCs) have a tendency to recur and possess an aggressive nature. the aim of the present study was to evaluate cytokeratin (CK) expression patterns as a method for the differentiation between dentigerous cysts (DCs) and OKCs, as their histomorphologic appearance are often indistinguishable. MATERIALS AND METHODS: Formalin-fixed, paraffin-embedded tissue sections of 43 OKCs and 38 DCs were immunohistochemically analyzed with i-solution in a quantitative manner in order to evaluate the immunoreactivity of CK 10, 16 and 17. RESULTS: CK 10 expression was evident in 79.1% of OKCs but found in only 18.4% of DCs (P<0.05), and CK 10 expression was observed to occur more frequently in OKCs (mean 25.45%) than in DCs (2.19%) (P<0.05). The expression of CK 16 was evident in 79.1% of OKCs but found in only 7.9% of the DCs (P<0.05) and CK 16 expression was observed to occur more frequently in OKCs (mean 4.33%) than in the DCs (0.61%) (P<0.05). The expression of CK 17 was evident in 88.4% of OKCs but seen in only 15.7% of the DCs (P<0.05) and CK 17 expression was observed to occur more frequently in OKCs (mean 31.11%) than in the DCs (2.37%) (P<0.05). CONCLUSION: The immunohistochemical detection of CK 10, 16 and 17 can be utilized as a valuable biomarker for use in distinguishing between OKCs and DCs, which have clinically significant differential diagnoses.
Biomarkers ; Dentigerous Cyst ; Diagnosis, Differential ; Imines ; Keratins ; Odontogenic Cysts ; Thiazines

OBJECTIVES: The aim of this study was to verify the clinical effectiveness of decompression in decreasing the size of a cyst. In addition to the different types of cysts, we tried to reveal what effect host factors, such as the initial size of the lesion and the age of the patient, have on the velocity of cyst shrinkage. MATERIALS AND METHODS: With the aid of a panoramic view, we measured the size of the cysts before and after decompression in 13 dentigerous cysts (DCs), 14 keratocystic odontogenic tumors (KTOCs), and 5 unicystic ameloblastoma (UA) cases. The velocity of shrinkage in the three cystic groups was calculated. Relationships between the age of the patient, the initial size of the cyst, and the shrinkage velocity were investigated. RESULTS: The three types of cysts showed no inter-type differences in their velocity of shrinkage. However, there was a statistically meaningful relationship between the initial size of the lesion and the absolute velocity of shrinkage in the DC group (P=0.02, R=0.65) and the KTOC group (P=0.02, R=0.56). There was also a significant relationship between the age of the patient and the absolute velocity of shrinkage in the KTOC group (P=0.04, R=0.45) and the UA group (P=0.04, R=0.46). CONCLUSION: There was no difference in the decrease in size due to decompression among the different types of cysts. However, the age of the patient and the initial size of the lesion showed a significant relationship with the velocity of shrinkage.
Ameloblastoma* ; Decompression* ; Dentigerous Cyst* ; Humans ; Odontogenic Cysts* ; Odontogenic Tumors*

The author experienced 8 cases of pericoronal radiolucency involving an incomplete tooth crown that had not developed to form the cemento-enamel junction, and the underdeveloped crown sometimes appeared to be floating within the radiolucency radiographically. The first impression was that these cystic lesions had odontogenic keratocysts, but half of them turned out to be dentigerous cysts histopathologically. There has been no report concerning odontogenic cysts involving an incompletely developed crown. The purpose of this paper is to report that dentigerous cysts may develop before the completion of the cemento-enamel junction of a developing crown.
Crowns* ; Dentigerous Cyst ; Odontogenic Cysts ; Tooth Crown ; Tooth, Unerupted

PURPOSE: Dentigerous cyst is the most common intra-osseous lesion of the jaw. Dentigerous cysts can cause delays in eruption of the affected permanent tooth in mixed dentition. It has been suggested that the affected permanent tooth could be erupted spontaneously after the dentigerous cyst was enucleated. But in some cases, orthodontic treatment or autotransplantation technique is known to be required. This study reviews previously performed prognoses of affected permanent teeth, which will lead to a more efficient treatment plan. PATIENTS AND METHODS: With 28 patients who have undergone cyst enucleation and 10 patients who have undergone autotransplantation, the prognosis of permanent teeth was observed. RESULTS: After cyst enucleation, spontaneous eruption of a permanent tooth was observed in 56.3% patients, orthodontic treatment was performed in 25% patients. The success rate of autotransplantation was 60.0 %. DISCUSSION: The first choice for treatment of dentigerous cyst in mixed dentition is to guide spontaneous eruption of permanent teeth. For cases without enough eruption space, the orthodontic treatment should be considered. Autotransplantation should be considered when the spontaneous eruption is not expected. It should be considered that the rate of successful autotransplantation is decreased on maxilla anterior area.
Dentigerous Cyst ; Dentition, Mixed ; Humans ; Jaw ; Maxilla ; Prognosis ; Tooth

Ameloblastoma is a common odontogenic tumor originating from the dental lamina, reduced dental epithelium and rests of Malassez, and represents 10% of all odontogenic tumors of the jaw. Unicystic ameloblastoma is normally encountered in young patients, and often occurs in the mandible, and is particularly associated with an impacted tooth. We encountered an unicystic ameloblastoma arising from a dentigerous cyst after the treatment of a radiolucent lesion on the mandible.
Ameloblastoma ; Dentigerous Cyst ; Epithelium ; Humans ; Mandible ; Odontogenic Tumors