Males were affected more than females with a sex ratio of 2.2 : 1. Seventy-seven percent of the patients had one supernumerary tooth, 18.4% had double teeth, and 4.6% had three or more supernumeraries. Ninety percent of the supernumerary teeth occurred in the premaxilla, of which 92.8% were in the central incisor region and of these latter 25% were located in the midline. The other 10.4% of the supernumeraries were located in the premolar, canine, molar, and lower central incisor regions. Two cases were of non-syndrome supernumerary teeth. Seventy-five percent of the supernumeraries were conical, 83.1% were in the normal vertical position and 26.5% were erupted. Conical-shaped supernumerary teeth had a significantly higher rate of eruption compared to the tuberculate type.

The discrepancy between dental knowledge and attitudes of parents and oral health care practices indicate the need for oral health education. School-based oral health promotion programmes should be established in Jordan to influence the oral health behaviour of children and parents and to avoid further deterioration in their oral health.

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We present a rare case of a developmental anomaly called regional odontodysplasia or 'ghost teeth' in an 8.5-year-old Jordanian girl. The anomaly affected both the mandibular primary and permanent incisors, and the canines bilaterally. The maxillary teeth were unaffected. This is the first case of the anomaly to be reported in Jordan. The clinical, radiographic and histological features are reviewed. The management of affected patients is discussed.

The aim of this study was to investigate the prevalence, aetiology and types of injuries to permanent incisors among 459 Jordanian schoolchildren aged 10-12 years, 234 from urban Amman and 225 from rural South Shouna. The prevalence of injuries in Amman was 19.2% (23.9% in boys, and 14.9% in girls) and in South Shouna 15.5% (19.1% in boys and 12.2 in girls). Significantly more boys than girls suffered injury. The difference in prevalence between urban and rural children was not statistically significant. The most common type of injury in both communities was enamel fracture, and the most common causes of injury were falls and collisions with other children. Children with an overjet greater than 5 mm sustained significantly more injuries to the incisor teeth than children with normal overjet.

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The prevalence of dental trauma among preschool children in Amman (Jordan) was high; therefore, it is highly recommended to plan campaigns targeting parents, children, and medical/dental care providers that stress the importance of preventing dental trauma and treating it promptly.