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Biomedical subjects

H H Yilmaz

Publications and source records attributed to H H Yilmaz.

4 recordsLinked to original sources

Prevalence of tooth transpositions and associated dental anomalies in a Turkish population.

OBJECTIVES: The aims of this study were to determine the prevalence of tooth transposition in a Turkish population, possibly associated dental anomalies and whether side laterality, gender expression or genetic influence exist or not. METHODS: Panoramic radiographs of 5486 patients referred to Department of Oral Diagnosis and Radiology, University of Suleyman Demirel between April 2003 and March 2004 were examined retrospectively. All patients with tooth transpositions were recalled for detailed clinical examination and medical history. Age, sex, history (trauma), location of transposition, and associated congenital dental anomalies were recorded with details. RESULTS: 22 transpositions were found in 21 of 5486 (0.38%) patients. The most frequently seen transposition was maxillary canine-lateral incisor (1.64/1000), secondly maxillary canine-first premolar (0.91/1000) and maxillary canine-second premolar (0.18/1000) was the least frequently seen one. The frequencies of right and left side occurrence were equal (11/11). Each sex was affected similarly (11 males, 10 females). CONCLUSIONS: The prevalence of tooth transposition was 0.38% in a Turkish population. Maxillary canine-lateral incisor transposition was found to have a higher frequency than maxillary canine-first premolar transposition. Maxillary canine-second premolar transposition that had not been previously reported in the literature was observed in one of our cases. Transpositions had similar frequencies in both sexes.

Adolescent↗

Multiple impacted permanent and deciduous teeth.

Multiple impacted teeth may be related to syndromes and metabolic disorders. In some cases, however, impaction of multiple teeth is not accompanied by a fixed complex of symptoms. A 55-year-old woman attended our clinic, as she was not comfortable with her prosthetic appliances because of erupted teeth. Panoramic and occlusal radiographs revealed 13 impacted teeth (12 permanent and 1 deciduous) in the maxilla and 15 impacted teeth (11 permanent and 4 deciduous) in the mandible. In total the patient had 28 impacted teeth. In our case, medical and family history and extraoral examination were not suggestive of any syndrome or metabolic disorder. In conclusion, radiographic examination may reveal multiple impactions in clinical absence of teeth. Lack of eruptive force and rotation of tooth buds may cause multiple impactions and additional examinations may be necessary to exclude systemic and metabolic conditions.

Dentition, Permanent↗

Incidence of canine impaction and transmigration in a patient population.

In this study, 4500 consecutive panoramic radiographs were prospectively reviewed. The incidence of canine impaction was found to be 3.58% and the incidence of canine transmigration was 0.31%. There were six maxillary and eight mandibular transmigrant canines. The incidence of impacted canine teeth and transmigration of maxillary and mandibular canines may be more frequent than was previously thought, at least in some populations.

Adolescent↗

Transmigration of impacted canines.

Pre-eruptive migration of a tooth across the midline is termed "transmigration". This condition has not been reported for teeth other than mandibular canines. Bilateral transmigration is extremely rare, and associated pathological lesions are also reported. The aim of this report is to present the first case of maxillary canine transmigration as well as additional cases of transmigrated mandibular canines, with special emphasis on their classification.

Adolescent↗