Role of cone-beam computed tomography in the evaluation of a paradental cyst related to the fusion of a wisdom tooth with a paramolar: A rare case report

Fusion is an abnormality of tooth development defined as the union of two developing dental germs, resulting in a single large dental structure. This irregular tooth morphology is associated with a high predisposition to dental caries and periodontal diseases. As a result of recurring inflammatory periodontal processes, disorders such as periodontal pocket, pericoronitis, and paradental cysts may develop. A rare mandibular anatomic variation is the retromolar canal, which is very significant for surgical procedures. The fusion of a paramolar and mandibular third molar associated with a paradental cyst co-occurring with the presence of a retromolar canal is rare, and the aim of the present study is to describe the evaluation of this anatomical configuration using cone-beam computed tomography.

Prevalence of double (fused/geminated) primary teeth in Turkey -a study

The purposes of this study was to investigate the prevalence of primary double [fused I geminated] teeth in a group of Turkish children and to compare the distribution of different types of double primary teeth and their relationship to permanent successors. 4619 dental records of Turkish children in the age range of 2 to 12 years were examined in the dental faculty hospital, Erciyes University Turkey between 2005 and 2010 and were included in this study. Radiographs and photographs of these children were also taken at the time of examination. The data [age, sex and systemic disease or syndrome] were obtained from the patient files and analyzed for double teeth. The occurrence of double primary teeth and their effects on the permanent dentition were also recorded. The prevalence of double primary teeth in children under 12 years of age in this study was 0.38%. 22 double primary teeth were detected. 45.4% were mandibular lateral incisors and canines 81.8% of cases experienced further problems in the permanent successors. Hypodontia [77.2%] was the common problem in the permanent successors. The affiliation between double primary teeth and permanent successors justifies radiographic examination to evaluate the number and condition of permanent successors and to determine a proper treatment plan

Prevalence of fusion and gemination in permanent teeth in Coppadocia region in Turkey

The objective of the present study was to determine the prevalence of dental fusion and gemination in permanent teeth in Coppadocia region in Turkey. The distributions of these conditions among different types were also studied. The present study was based on the clinical assessment and panoramic radiographs of 8,229 patients. All of these patients were examined clinically and had radiographs and photographs taken at the time of examination. All data [age, sex and systemic disease or syndrome] were obtained from the patient files and analyzed for double teeth [fusion and geminaiton]. The distribution of double teeth was investigated according to types and clinical positions. In this study the prevalence of double teeth [Fusion and gemination] in the permanent dentition in patients between 12 to 60 years was 0.29%. 14 [0.17%] were Fused and 12 [0.14%] were geminated teeth. The maxillary incisors were the most commonly affected, followed by the mandibularpremolars. Fusion andgemanation are uncommon conditions in Turkish population, but they are important dental anomalies that can affect any tooth in the mouth. Recognizing the condition will facilitate the endodontist, prosthodontist, periodontist, orthodontist, and for surgical management of such teeth