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PubMedDate not supplied

Submerging deciduous molars--an extraction in time!

A case is presented of a 25-year-old man with a submerged lower second deciduous molar and an impacted lower second premolar. Treatment was complicated by the relationship of the teeth to the inferior dental nerve, which necessitated extensive bone removal and mental nerve transposition to remove the submerged and impacted teeth. Early recognition and treatment of the submerging tooth might have prevented the need for such extensive surgery and morbidity at a later date.

Adult↗
PubMed1998

The ectopic maxillary canine: a case report.

A case is described of a severely ectopic maxillary canine, which underwent initial spontaneous improvement, and following extraction of the deciduous canine erupted satisfactorily. It provides a cautionary tale when considering surgical removal of ectopic maxillary canines.

Child↗
PubMed2004

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↗
PubMed1991

[Anomalies of deciduous teeth and findings in permanent dentition].

Prevalence of anomalies of deciduous teeth has been analyzed in the general population of Zagreb preschool children. The sample comprised 2,987 children from 3 to 6 years of age (1,582 boys and 1,405 girls). Hypodontia was found in 0.47%, hyperdontia in 0.10%, and double teeth in 0.43% of total sample. Total prevalence of all anomalies in the sample was 1.0%. The sample for the analysis of permanent dentition has been enlarged with the clinical sample of children having the same anomalies and comprised 48 children. In all children with anomalies of primary teeth the orthopantomograms were taken and the status of permanent dentition was analyzed. In children with hypodontia in primary dentition hypodontia of permanent teeth was found in 100% of cases. Patients with hyperdontia of primary teeth displayed anomalies in permanent dentition in 85.7%, while in children with primary double teeth, anomalies of permanent teeth were present in 61.1% of cases. Missing deciduous teeth were found in both jaws in only 8.7% of cases, and in 34.8% in permanent dentition. Symmetrical occurrence of hypodontia of primary teeth (i.e. in both sides of jaws) was significantly higher in boys (56.3%) than in girls (28.6%). In permanent dentition symmetrical occurrence of hypodontia was significantly higher than in primary dentition (81.3% in boys and 57.1% in girls). The most frequently missing primary teeth were maxillary lateral incisors (48.8%) followed by mandibular central incisors (34.9%). Hyperdontia of primary teeth has been found only in boys, and it related only to the maxillary lateral incisors. Anomalies of deciduous teeth show a high degree of association with the finding in the permanent dentition.(ABSTRACT TRUNCATED AT 250 WORDS)

Anodontia↗
PubMedDate not supplied

[Ankylosis of deciduous teeth].

The authors reviewed the literature concerning ankylosis of deciduous teeth, with emphasis on the diagnosis, the incidence, the aetiology and the treatment of this manifestation, illustrated with representative clinical cases.

Ankylosis↗
PubMed1982

Developmental patterns of human dental morphological traits.

A longitudinal series of casts of the deciduous and permanent dentitions of 827 children from Burlington Growth Centre study was examined for 5 traits: shovel-shape of the incisors, cusp six, cusp seven and protostylid of the mandibular molars, and Carabelli trait of the maxillary molars. The changing trait frequencies found support the concept of morphogenetic gradients of expression for non-metric traits from deciduous to permanent teeth. Tests of association showed that if shovelling was present on the deciduous incisors it would usually appear on the permanent successors. Tests of association between the other 4 traits on deciduous second molars and the permanent molars support the view that the second deciduous molar belongs to the total molar tooth district. This gradient expression of morphological traits would fit either the field or clone concepts, but it, and the intra-individual discordances for trait presence, probably reflects the great temporal spacing of dental development seen in man.

Adolescent↗