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Titolo:
The relationship of handedness to asymmetry in the occlusal morphology of first permanent molars
Autore:
Pirila-Parkkinen, K; Pirttiniemi, P; Alvesalo, L; Silven, O; Heikkila, J; Osborne, RH;
Indirizzi:
Oulu Univ, Inst Dent, Dept Orthodont & Oral Dev, Oulu 90014, Finland Oulu Univ Oulu Finland 90014 t Orthodont & Oral Dev, Oulu 90014, Finland Oulu Univ, Dept Elect Engn, Oulu 90014, Finland Oulu Univ Oulu Finland 90014 Univ, Dept Elect Engn, Oulu 90014, Finland Univ Wisconsin, Dept Anthropol, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706 Dept Anthropol, Madison, WI 53706 USA
Titolo Testata:
EUROPEAN JOURNAL OF MORPHOLOGY
fascicolo: 2, volume: 39, anno: 2001,
pagine: 81 - 89
SICI:
0924-3860(200104)39:2<81:TROHTA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLUCTUATING DENTAL ASYMMETRY; LATERAL PREFERENCES; PLANUM TEMPORALE; BIRTH-WEIGHT; STRESS; POPULATIONS; DIMENSIONS; MOSAICISM; DENTITION; CHILDREN;
Keywords:
laterality; odontometry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Pirila-Parkkinen, K Oulu Univ, Inst Dent, Dept Orthodont & Oral Dev, Pl 5281, Oulu 90014, Finland Oulu Univ Pl 5281 Oulu Finland 90014 u 90014, Finland
Citazione:
K. Pirila-Parkkinen et al., "The relationship of handedness to asymmetry in the occlusal morphology of first permanent molars", EUR J MORPH, 39(2), 2001, pp. 81-89

Abstract

Handedness has been shown to be related to a number of systematic asymmetries in body dimensions, dermatoglyphic patterns and cerebral morphology. The aim here was to compare linear and angular tooth crown asymmetries of thepermanent molars in healthy right-handed and left-handed subjects. The material comprised 27 children with recorded concordant left-side dominance ofhand, eye and foot. The controls were an age- and sex-matched group with right side dominance. The material is based on the Collaborative Perinatal Project where detailed medical records and the dentitions, including accurate dental impressions, of over two thousand American children were examined in the USA in the sixties. Machine vision technique was used to obtain accurate three-dimensional information from the occlusal surfaces of the first permanent upper and lower molars. The directional asymmetry values of angular measurements of mandibular first molars showed evidence of asymmetry of opposite direction between the two examined groups. The results indicate that occlusal morphology of first permanent molars may be affected by handedness, and this tendency is most evident in the angular measurements of the mandibular molars. Fluctuating asymmetry did not differ significantly between the examined groups.

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Documento generato il 25/01/20 alle ore 15:47:33