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Radicular Cyst (radicular + cyst)

Distribution by Scientific Domains
Medical Sciences100%

Selected Abstracts

Radicular cyst associated with a primary molar following pulp therapy: a case report

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 6 2001
M. Takiguchi
Summary. A radicular cyst arising from the primary second molar and causing displacement of the permanent successor to the lower border of the mandible, with accompanying buccal expansion, was examined clinically and radiographically. Extraction of the primary molar and extirpation of the cyst led to uneventful healing. The primary molar had received pulp treatment with therapeutic agents approximately 1·5 years prior to the patient's first visit. The relationship between pulp treatment and rapid growth of the radicular cyst is discussed. [source]

CD57+ cells in radicular cyst

INTERNATIONAL ENDODONTIC JOURNAL, Issue 2 2000
P. R. Moreira
Aim As CD57 antigen is an important modulator of the immune system, the purpose of the present study was to compare the expression of this antigen on radicular cysts (RC) with hyperplastic or atrophic epithelium. Methodology Twenty cases of RC were retrieved and classified as atrophic or hyperplastic. A biotin-streptavidin amplified system was used for identification of the CD57 receptor. Results The results demonstrated a greater percentage of CD57+ cells in RC with atrophic epithelium compared to hyperplastic epithelium. Conclusion As the expression of CD57 is indicative of immunosuppression, it may constitute a negative immunomodulator of RC's epithelium growth. Further studies are necessary to understand the importance of this cell to the biological activity or inactivity of RC's epithelium development. [source]

A retrospective study of paediatric oral lesions from Thailand

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 4 2007
KITTIPONG DHANUTHAI
Aim., To survey the paediatric oral lesions in Thailand. Design., Biopsy records over a 15-year period (1990,2004) were retrieved from the files of the Department of Oral Pathology, Faculty of Dentistry, Chulalongkorn University. Paediatric cases with an age of 16 years or younger were selected. The age of the patients was divided into three groups according to the dentition period. The lesions were classified into three categories: inflammatory/reactive lesions, cystic lesions, and tumour/tumour-like lesions. Results., From a total of 8314 oral biopsies, 1251 cases (15.05%) were in the paediatric population. The greatest number of lesions fell into the cystic category, followed closely by the inflammatory/reactive category and tumour/tumour-like category, respectively. The top ten most frequently encountered lesions in the present study were dentigerous cyst, mucocele, pyogenic granuloma, ameloblastoma, radicular cyst, odontoma, odontogenic keratocyst, irritation fibroma (focal fibrous hyperplasia), fibrous dysplasia, and osteomyelitis. The majority of lesions were found in the mixed dentition period (49.24%). There was no statistical difference in the occurrence between genders in this study. Conclusions., The present study shows an almost similar trend to previous studies except in the ranking among and within categories. These differences may be attributable to the nature of the population studied and because Chulalongkorn University is a major referral centre. [source]

Radicular cyst associated with a primary molar following pulp therapy: a case report

INTERNATIONAL JOURNAL OF PAEDIATRIC DENTISTRY, Issue 6 2001
M. Takiguchi
Summary. A radicular cyst arising from the primary second molar and causing displacement of the permanent successor to the lower border of the mandible, with accompanying buccal expansion, was examined clinically and radiographically. Extraction of the primary molar and extirpation of the cyst led to uneventful healing. The primary molar had received pulp treatment with therapeutic agents approximately 1·5 years prior to the patient's first visit. The relationship between pulp treatment and rapid growth of the radicular cyst is discussed. [source]

CD57+ cells in radicular cyst

INTERNATIONAL ENDODONTIC JOURNAL, Issue 2 2000
P. R. Moreira
Aim As CD57 antigen is an important modulator of the immune system, the purpose of the present study was to compare the expression of this antigen on radicular cysts (RC) with hyperplastic or atrophic epithelium. Methodology Twenty cases of RC were retrieved and classified as atrophic or hyperplastic. A biotin-streptavidin amplified system was used for identification of the CD57 receptor. Results The results demonstrated a greater percentage of CD57+ cells in RC with atrophic epithelium compared to hyperplastic epithelium. Conclusion As the expression of CD57 is indicative of immunosuppression, it may constitute a negative immunomodulator of RC's epithelium growth. Further studies are necessary to understand the importance of this cell to the biological activity or inactivity of RC's epithelium development. [source]

Expression of basement membrane components in odontogenic cysts

ORAL DISEASES, Issue 3 2006
S Poomsawat
Objective:, To compare the expression of basement membrane components (BMCs), including laminins 1 and 5, collagen type IV, and fibronectin in odontogenic keratocysts (OKCs) with dentigerous cysts (DCs) and radicular cysts (RCs). Materials and methods:, Basement membrane components were analysed in 20 OKCs, 20 DCs and 20 RCs using an immunohistochemical technique. Results:, Odontogenic keratocysts, DCs and RCs showed positive reaction to all BMCs studied, with different distributions and intensity. OKCs showed continuous linear deposits for laminins 1 and 5 but two staining patterns (continuous and discontinuous) for collagen type IV and fibronectin. DCs exhibited continuous linear deposits for laminins 1 and 5 and collagen type IV but a discontinuous linear deposit for fibronectin. RCs displayed similar results to DCs for laminin 1, collagen type IV and fibronectin. Laminin 5 in RCs had two staining patterns. Constant results in all cysts were strong intensity for laminin 1 and moderate intensity for laminin 5. Conclusions:, Substantial differences in the expression of BMCs among studied cysts were not observed, suggesting that the separation of the epithelial lining in OKCs is not associated with the existence of these proteins. [source]