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Results for “Tooth, Supernumerary”

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At least 991 records · Page 55Linked to original sources
PubMed1979

Maxillary diastema: indications for treatment.

1. In comparing characteristics associated with the presence or absence of diastema at the age of 16 years, generalized spacing was the only significant factor. 2. In the 230 children who had a diastema of 0.5 mm. or greater at age 9, there was a significant association between the diastema and the amounts of crowding or spacing at age 16. 3. A clinician must analyze the individual case in order to determine whether the diastema is to close through normal development or if there exists a likelihood of its persistence.

Adolescent↗
PubMed1992

Occurrence of a postpermanent mandibular fourth premolar in a moose bull (Alces alces L.).

By a number of diagnostic criteria a supplemental premolar in the right hemimandible of a 6-yr-old moose bull from Bielorussia was identified as a postpermanent fourth premolar. Its development, which must have started at least 3 yr after the permanent fourth premolar had reached its functional position, resulted in rotation of the P4 by 80 degrees, as well as extensive resorption on both root and crown.

Animals↗
PubMed1994

A study of branched pulpal axons in ferrets with supplemental teeth.

Electrophysiological recordings were made from maxillary incisors to determine whether axons which branch to supply the pulps of two teeth were more common if a supplemental tooth was present. A total of 12 branched pulpal axons was found in nine animals with six maxillary incisors each and 25 branched pulpal axons were found in six animals with seven maxillary incisors each. Because of the variability between animals, this difference was not significant. However, branched pulpal fibres which crossed the midline were found only in animals with supplemental teeth.

Action Potentials↗