Inheritance of occlusal topography

a twin study.

C. Y. Su, P. M. Corby, M. A. Elliot, D. A. Studen-Pavlovich, D. N. Ranalli, B. Rosa, Jennifer Wessel, N. J. Schork, T. C. Hart, W. A. Bretz

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

AIM: This was to determine the relative contribution of genetic factors on the morphology of occlusal surfaces of mandibular primary first molars by employing the twin study model. METHODS: The occlusal morphology of mandibular primary first molar teeth from dental casts of 9 monozygotic (MZ) twin pairs and 12 dizygotic (DZ) twin pairs 4 to 7 years old, were digitized by contact-type three-dimensional (3D) scanner. To compare the similarity of occlusal morphology between twin sets, each twin pair of occlusal surfaces was superimposed to establish the best fit by using computerized least squared techniques. Heritability was computed using a variance component model, adjusted for age and gender. RESULTS: DZ pairs demonstrated a greater degree of occlusal morphology variance. The total amount of difference in surface overlap was 0.0508 mm (0.0018 (inches) for the MZ (n=18) sample and 0.095 mm (0.0034 inches) for the DZ (n=24) sample and were not statistically significant (p=0.2203). The transformed mean differences were not statistically significantly different (p=0.2203). Heritability estimates of occlusal surface areas for right and left mandibular primary first molars were 97.5% and 98.2% (p

Original languageEnglish (US)
Pages (from-to)19-24
Number of pages6
JournalEuropean archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry
Volume9
Issue number1
StatePublished - Mar 2008
Externally publishedYes

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Twin Studies
Tooth
Dizygotic Twins
Monozygotic Twins

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Su, C. Y., Corby, P. M., Elliot, M. A., Studen-Pavlovich, D. A., Ranalli, D. N., Rosa, B., ... Bretz, W. A. (2008). Inheritance of occlusal topography: a twin study. European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, 9(1), 19-24.

Inheritance of occlusal topography : a twin study. / Su, C. Y.; Corby, P. M.; Elliot, M. A.; Studen-Pavlovich, D. A.; Ranalli, D. N.; Rosa, B.; Wessel, Jennifer; Schork, N. J.; Hart, T. C.; Bretz, W. A.

In: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, Vol. 9, No. 1, 03.2008, p. 19-24.

Research output: Contribution to journalArticle

Su, CY, Corby, PM, Elliot, MA, Studen-Pavlovich, DA, Ranalli, DN, Rosa, B, Wessel, J, Schork, NJ, Hart, TC & Bretz, WA 2008, 'Inheritance of occlusal topography: a twin study.', European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry, vol. 9, no. 1, pp. 19-24.
Su, C. Y. ; Corby, P. M. ; Elliot, M. A. ; Studen-Pavlovich, D. A. ; Ranalli, D. N. ; Rosa, B. ; Wessel, Jennifer ; Schork, N. J. ; Hart, T. C. ; Bretz, W. A. / Inheritance of occlusal topography : a twin study. In: European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry. 2008 ; Vol. 9, No. 1. pp. 19-24.
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