Introduction: Dental anomalies have been widely examined, but no such studies have been conducted in Norway. The purpose of this study was to examine the prevalence of dental anomalies and investigate their possible association with gender and dental occlusion. Methods: Panoramic radiographs and study models of 500, 12-year-old school children (273 girls, 227 boys) were analyzed for the presenc...

BACKGROUND Agenesis of permanent canines is an uncommon condition that affects human teeth. In fact, canine is the most variable positioned tooth, it can be found palatally or facially displaced or ectopically erupted from the dental arch. On the contrary, canine agenesis is a rare finding in Caucasian populations, but it may be relatively more common in Asian groups. This dental anomaly is fir...

the present report aimed to study an uncommon case of a pair of twins that presented a discordant dental phenotype. family investigation, clinical, radiographic examination and molecular analysis were performed in both girls. molecular analysis confirmed the monozygosity by deoxyribonucleic acid chip technology. one twin presented tooth agenesis in left upper lateral incisor and peg-shaped on t...

The aim of this study was to examine the potential relationship between the occurrence of orthodontic root resorption and presence of dental anomalies such as tooth agenesis and pipette-shaped roots. Dental anomalies and root resorption were assessed on dental panoramic tomographs (DPT) of 88 subjects, 27 males and 61 females, mean age 28.4 (SD = 11.3 years), selected from orthodontic patients ...

Hemifacial microsomia (HM) is an asymmetrical congenital deformity of the head and face caused by anomalous development of the structures derived from the first and second branchial arches. This study evaluates the incidence of agenesis and dental inclusions in HM patients. Sixty-three HM patients, 27 male and 36 female, ranging from 7 to 43 years had monolateral (61) and bilateral (2) presenta...

The maxillary lateral incisor is the second most frequently missing tooth in the dental arch. The aim of this study was to review literature data for maxillary lateral incisor agenesis, unilateral and bilateral, and associated dental anomalies in an orthodontic population. Research suggests that several clinical features are commonly seen, dental anomalies commonly associated with agenesis of ...

The abrasiveness of food is a key determinant in the rate of physiological attrition (dental wear) in humans. With increasing food processing through time, the rate of physiological dental wear in human teeth has decreased markedly. Many consider such wear to be beneficial to oral health and that insufficient wear may result in impaction of the third molars. If enhanced extraoral food processin...

The third molar development was studied on the basis of 1700 panoramic radiographs analysis of randomly selected individuals in the age ranging between 5-21 years inclusive. Each age group consisted of 100 probands--50 boys and 50 girls. The characteristics of the third molar development were following: time of dental follicle formation--dynamics of development--the most frequent stages of thir...

CONTEXT Although Kallmann syndrome (KS) caused by heterozygous loss of function mutations of the fibroblast growth factor receptor 1 gene (FGFR1) is occasionally associated with characteristic features, such as dental agenesis and cleft palate, FGFR1 mutations remain unidentified in several KS patients with such characteristic features. SUBJECTS AND METHODS We examined a 14-yr-old Japanese bo...

OBJECTIVE To determine the prevalence of permanent tooth anomalies in patients attending the graduate orthodontic clinic at the State University of New York at Buffalo. MATERIALS AND METHODS Charts of 496 subjects (310 females and 186 males) met the inclusion criteria for this study. The mean ages were 16 years and 3 months for the combined gender sample that received orthodontic treatment in...