Mandibular Dentigerous Cyst in a 10-Year-Old Child

A Case Series of Dentigerous Cyst in Paediatric Patients at Our Tertiary Institution

Dentigerous cysts involves erupted or developing teeth in decreasing order of frequency as mandibular third molars, the maxillary canines, the maxillary third molars with rare involvement of the central incisors & are usually asymptomatic but becomes symptomatic with symptoms such as swelling, mild sensitivity, tooth mobility and displacement when it reaches size > 2 cm in diameter. Dentigerous cysts are seen most commonly in 20-30 years age group with relative low frequency in children with proportion of 4-9% of these cysts occur in the first 10 years after birth. Hospital based study conducted in the Department of ENT at Ashwini Rural medical college & Hospital, Solapur in which we have reported a series of three cases of dentigerous cyst in paediatric patients. Dentigerous Cysts in our study were associated with maxillary permanent lateral incisor, mandibular permanent premolar, Mandibular second molar tooth in pediatric age group. Provisional diagnosis of Dentigerous cyst based on clinical, radiological & biochemical study but Histopathological examination confirms the diagnosis. Dental orthopentamogram aids in diagnosing and localizing the Dentigerous cyst and ct face in all views helps to see bony effects and complications due to expansion of Dentigerous cyst. Enucleation of the cystic lesion followed by extraction of the offending teeth is a suitable treatment modality for Dentigerous cyst associated with maxilla and mandible giving adequate balance between complete removal of cyst & giving chance for eruption of unerupted teeth.

Cystic lesion between a deciduous tooth and the succeeding permanent tooth: a retrospective analysis of 87 cases

Objectives

The purpose of this study is to investigate the characteristics of dentigerous and radicular cysts that occur between deciduous and succeeding permanent teeth and to propose considerations for differential diagnosis of cysts at the treatment planning stage in the outpatient clinic.

Materials and Methods

A total of 87 patients with a cystic lesion located between a deciduous tooth and the succeeding permanent tooth participated in the study. Twelve variables were analyzed to diagnose such a cyst. For data analysis, Fisher's exact test was used to determine the statistical significance of the variables.

Results

Of the total 87 patients who participated in this study, 69 were diagnosed with dentigerous cysts and 18 were diagnosed with radicular cysts. Seven of the 12 differential factors analyzed in this study were statistically significant: age, location, symptoms, dental caries, endodontic treatment, delayed eruption, and size.

Conclusion

Several criteria can be considered for diagnosis of dentigerous cysts or radicular cysts. Age, location, presence of symptoms and dental caries, previous endodontic treatment, cystic size, and delayed eruption of impacted permanent teeth are reliable factors that should be considered when diagnosing dentigerous and radicular cysts.

Radiographic Diagnosis in the Pediatric Dental Patient

This article emphasizes the selection criteria for radiographic acquisition in children due to the greater sensitivity of children for radiation compared with adults. Diagnosis of common pediatric dental conditions, including dental caries, periodontitis, dental anomalies, cysts, tumors, and traumatic dental conditions, are discussed with relevant clinical scenarios.

Immunohistochemical Expression of CDC7 in Dentigerous Cyst, Odontogenic Keratocyst and Radicular Cyst

CDC7 is a serine/threonine kinase which has an essential role in initiation of DNA proliferation and S phase. It increases the invasion and proliferation in many pathologic lesions. This study aimed to evaluate the expression of CDC7 in the most common odontogenic cysts. We evaluated 17 dentigerous cysts, 18 odontogenic keratocysts (OKC) and 13 radicular cysts immunohistochemically. The mean expression of CDC7 was analyzed using ANOVA and Post-HOC methods. All specimens revealed CDC7 expression. Higher expression of CDC7 in OKC and radicular cyst was shown in comparison to dentigerous cyst (P < 0.001), while radicular cyst and OKC groups showed no difference in CDC7 expression (P = 0.738). The high expression of CDC7 in OKC suggests that this protein could be related to the higher proliferation rate and invasiveness of OKC. On the other hand, the higher CDC7 expression in radicular cyst may simply be related to inflammation as this cyst is neither aggressive nor invasive.