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!"#$ 6 %&'()*+,-./,-01/23
8)! Bishara SE, Jakobsen JR, Treder J, Nowak A. Arch
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The Journal of the Japan Academy of CAD/CAM Dentistry Vol.2 No.2
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Vol.2, No.2, 2012
! 97 !
The Journal of the Japan Academy of CAD/CAM Dentistry Vol.2 No.2
Original paper
A preliminary study for analysis of three dimensional change of
children6s palates and alveolar ridges in pre-dentition period
Asami Katayama 1), Yasutaka Kaihara 2),Takuya Kihara1), Satoko Iwamae 3), Hideaki Amano 4),
Hiroki Nikawa 1)
1)
Department of Oral Biology and Engineering, Graduate School of Biomedical! and Health Sciences,
Hiroshima University"1-2-3, Kasumi, Minami-ku, Hiroshima Japan#
2)
Department of Pediatric Dentistry, Hiroshima University Hospital"1-2-3, Kasumi, Minami-ku, Hiroshima Japan!
3)
Satoko Dental Clinic"305-1, Oojiyoukaichi, Kamikawa-machi, Kodama-gun, Saitama Japan #
4)
Department of Maxillofacial Development, Maxillofacial Functional Development, Division of Oral Health Sciences, Hiroshima
University Graduate School of Biomedical Sciences"1-2-3, Kasumi, Minami-ku, Hiroshima Japan#
The purpose of this study was to analyze the growth of palates and alveolar ridges in pre-dental period
longitudinally and 3-dimmensionally. The study models obtained from a few volunteers during pre-dentition stage at
appropriate intervals were scanned to create the corresponding 3D surface models by the use of a non-contact 3D
surface scanner, and the morphological changes during growth and development periods of each individual were
analyzed.
1) The palates considerably increased laterally and vertically during the first six months, and leveled off.
2) The palates increased, to a large extent, in lateral direction during first one months, and then gradually increased
within 3months.
3) The size of anterior palates increased in a sagittally within the first six month.
At last, the three-dimensional measuring system was useful aid to analyze the development of jaws of the nepionic
children.
Keywords$Palatal development, morphology change, three dimensional measurement
Vol.2, No.2, 2012
! 98 !