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Results for “Tooth Abnormalities”

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At least 451 records · Page 25Linked to original sources
PubMed1991

Dental lesions in tumoral calcinosis.

Tumoral calcinosis (TC) is a rare inherited autosomal dominant metabolic disease manifested by elevated serum phosphorus and 1,25 dihydroxyvitamin D levels and periarticular cystic and solid tumorous calcifications. The dental findings in a large family have been critical in determining the genetic transmission of the condition. Radiographically the teeth have short bulbous roots, pulp stones and partial obliteration of the pulp cavity. Histologically, coronal dentin and a variable amount of radicular dentin appears to be deposited regularly. At nonspecific points the developing radicular dentin appears to encounter a mass of calcified material and proceed to grow around it. This mass has a unique histologic pattern with ovoid spaces surrounded by amorphous calcification. At levels of further root development the radicular dentin has an irregular bending tubule arrangement. The dental lesion of TC appears to be different from that of radicular dentin dysplasia in histologic structure and in the method of initiation of the dentin defect. These data suggest that the specific dental lesion is a new phenotypic marker for TC.

Adolescent↗
PubMed2006

An unusual combination of idiopathic generalized short-root anomaly associated with microdontia, taurodontia, multiple dens invaginatus, obliterated pulp chambers and infected cyst: a case report.

Generalized diminished root formation is a rare condition leading to early loss of teeth. This report describes an unusual case of generalized short roots associated with microdontia, taurodontism of posterior teeth, and multiple dens invaginatus along with short stature in a 20-year-old man, who had lost several teeth because of spontaneous exfoliation.

Adult↗
PubMed1981

Nature and frequency of dental changes in idiopathic hypoparathyroidism and pseudohypoparathyroidism.

Eleven patients with idiopathic hypoparathyroidism and pseudohypoparathyroidism were examined orally and medically. All patients had a history of tetanic and/or epileptic manifestations. Correspondingly, disturbances in the metabolism of calcium and phosphorus had been present in all. Dental anomalies were demonstrated in all patients but one. Enamel hypoplasia was observed in six cases, disturbances in tooth eruption in eight, root defects in five and hypodontia in seven. Dental anomalies were more frequent than could be expected from the literature, probably because the dental aspects of hypoparathyroid disease often have been overlooked. In the present material, the above-mentioned disturbances were most severe and frequent in the pseudohypoparathyroid group. Hypoparathyroid conditions are highly invalidating, easily accessible to treatment, but often undiagnosed for years. Therefore, the dental observation of severe disturbances in tooth formation and eruption pattern may be of crucial importance and should lead to further medical investigation.

Adolescent↗
PubMed1984

Dental features in congenital persistent renal tubular acidosis of proximal type.

The dental features in a hitherto unknown type of renal tubular acidosis (capillary blood pH 7.07-7.15) of proximal type are reported. The patient presented agenesis of three second premolars, delayed development and eruption of permanent teeth, delayed shedding of the primary dentition and severe enamel hypoplasia of the permanent teeth. Apart from exceptionally thin enamel, histologic, fluorescent and polarization microscopic and microradiographic investigation of three primary teeth did not reveal unusual findings. The changes are most probably due to a generalized, acidosis-induced defect in several highly differentiated ectodermal tissues.

Acidosis, Renal Tubular↗
PubMed2005

Morphological appearance and chemical composition of enamel in primary teeth from patients with 22q11 deletion syndrome.

Patients with 22q11 deletion syndrome have many and complex medical problems, including hypocalcemia and/or hypoparathyroidism. Odontological findings include enamel aberrations in both dentitions. In order to describe enamel morphology, chemical composition in primary teeth, and to investigate the relationship between medical history and morphological appearance, dental enamel was investigated in 38 exfoliated primary teeth from 15 children and adolescents. Morphology was studied by the use of a polarized light microscope, microradiography, scanning electron microscopy, X-ray microanalysis, and secondary ion mass spectrometry. The morphological findings were compared with medical history. The teeth showed, in principle, a normal morphological appearance with regard to prism structure. A high frequency of aberrations, such as hypomineralization, hypoplasia and extra incremental lines, were found. The majority of the aberrations were found around the neonatal line. There was a relationship between high numbers of medical problems in the patients and enamel deviations. The result supports the hypothesis of under-reporting of both hypocalcemia and hypoparathyroidism in patients with 22q11 deletion syndrome.

Adolescent↗
PubMed1991

Pulp capping of immature teeth with anatomic anomalies.

This case report describes the treatment of two immature teeth with anatomic anomalies which created plaque retentive areas and in one case occlusal disturbance. Periodontal and pulpal consequences were inevitable. Reshaping of the teeth was carried out which as expected led to exposure of the pulp in both instances. Pulp capping was then performed under aseptic conditions. The vitality of the teeth was maintained and continued root development was observed.

Adolescent↗
PubMed1996

Conservative treatment of dens evaginatus of anterior teeth.

Dens evaginatus is a developmental malformation characterized by the presence of an extra cusp. In the anterior dentition, dens evaginatus is more commonly found in the maxilla and on the palatal surface of the tooth. Treatment may include root canal therapy followed by either an aesthetic restoration or a full crown coverage. In cases of mesiodens, supernumerary teeth or crowded dentition, extraction is often indicated. Presented is a case of a conservative treatment modality of dens evaginatus in a mandibular central incisor.

Child↗
PubMed1997

A case of severe vestibular root angulation.

In this article, we describe the appearance and management of an impacted permanent tooth with severe vestibular root angulation. In addition, the possible origin of this type of root malformation as well as some of their epidemiologic aspects are discussed.

Child↗
PubMed1999

Malformation in the primary and permanent dentitions following trauma prior to tooth eruption: a case report.

Dento-facial injuries that occur prior to the eruption of teeth in the primary dentition are rare, but can result in damage to the primary dentition. We report a rare case where an injury to the anterior maxilla and mandible of an infant prior to primary tooth eruption resulted in hypoplasia, displacement and impaction of the primary dentition and damage to a developing permanent tooth.

Child, Preschool↗
PubMed2004

Successful treatment of a radicular groove by intentional replantation and Emdogain therapy.

Radicular groove is an anatomical malformation often predisposing to a severe periodontal defect. Treatment of such an anomaly presents a clinical challenge to the operator. Presented is a case of successful treatment of a radicular groove associated with a maxillary lateral incisor in a 15-year-old girl. A combination of endodontic, intentional replantation and Emdogain therapy was used. At 1-year follow-up, the patient was comfortable and active healing was evident.

Adolescent↗
PubMed2005

Avulsion of primary teeth and sequelae on the permanent successors.

The purpose of the present study was to determine the frequency of avulsion of primary teeth and the location of the avulsed tooth in a representative population of Danish children. Also, the frequency and the type of developmental disturbances in the permanent successors were assessed and related to age at the time of injury. The material included dental records of 4238 children from three clinics in Municipal Dental Health Services near Copenhagen, Denmark. The children were born between 1 January 1983 and 31 December 2000. Thirty-five children (0.8%) were identified as having avulsed in all 44 primary teeth most frequently the maxillary incisors (89%). Thirty-three fully erupted permanent successors were included in the study, the prevalence of developmental disturbances was 30% (10 teeth). The results showed the risk of developmental disturbances in the permanent successors to be more frequent the younger the age at the time of injury (P = 0.04). Discolouration affected all 10 permanent teeth, but also hypoplasia and horizontal enamel hypoplasia were found.

Age Factors↗
PubMed2006

Displacement and pulpal involvement of a maxillary incisor associated with a talon cusp: report of a case.

The talon cusp is a relatively uncommon dental anomaly manifested as an accessory cusp-like structure on the crown of anterior teeth. The presence of a talon cusp can cause clinical problems. This article reports the case of a patient presenting a talon cusp affecting the permanent maxillary right central incisor causing clinical problems related to caries, displacement of the tooth, occlusal position and tendency to dental traumatism. The management of this tooth included caries removal and reduction of the cusp. Pulp-capping with calcium hydroxide was required because of the presence of pulp horn extensions in the talon cusp.

Child↗