To derive a three-dimensional mathematical description of normal human hard tissue palatal size and shape.
Methods
The maxillary dental casts of 30 adolescents free from respiratory problems, who had a complete (28 teeth) permanent sound dentition with normal occlusion, were studied. The x, y, z coordinates of several standardized palatal and dental landmarks were obtained with a computerized three-dimensional digitizer. Palatal landmarks were used to derive a mathematical equation of palatal shape in the frontal and sagittal planes. Palatal width, length, frontal and sagittal heights, and sagittal slope, as well as dental arch transverse and anteroposterior dimensions, were computed.
Results
Neither the size nor the shape of the palate was significantly influenced by gender. Only the intercanine distance was larger (p < .025) in males than in females.
Conclusions
Data collected in the present investigation could represent a first database for the quantitative description of normal human palatal morphology in subjects with a complete permanent dentition.
AbeK., SuzukiA., TakahamaY.. Prediction of coronal size of third molars by factor and multiple regression analyses.Am J Orthod Dentofac Orthop1996; 109: 79–85.
2.
AndersonD.L., ThompsonG.W., PopovichF.. Tooth, chin, bone and body size correlations.Am J Phys Anthropol1977; 46: 7–12.
BerkowitzS.. The complete unilateral cleft lip and palate: serial three-dimensional studies of excellent palatal growth. In: BardachJ., MorrisH.L., eds. Multidisciplinary Management of Cleft Lip and Palate.Philadelphia: WB Saunders;1990: 456–473.
5.
BisharaS.E., JakobsenJ.R., TrederJ., NowakA.. Arch width changes from 6 weeks to 45 years of age.Am J Orthod Dentofac Orthop1997; 111: 401–409.
6.
CookeM.S., WeiS.H.Y.. Cephalometric errors: a comparison between repeat measurements and retaken radiographs.Aust Dent J1991; 36: 38–43.
7.
FerrarioV.F., SforzaC., ColomboA., MianiA.Jr, D'AddonaA.. Position and asymmetry of teeth in untreated dental arches.Int J Adult Orthod Orthognath Surg1993; 8: 277–285.
8.
FerrarioV.F., SforzaC., MianiA.Jr. Statistical evaluation of Monson's sphere in permanent healthy dentitions in man.Arch Oral Biol1997a; 42: 365–369.
9.
FerrarioV.F., SforzaC., MianiA.Jr, ColomboA., TartagliaG.. Mathematical definition of the curve of Spee in permanent healthy dentitions in man.Arch Oral Biol1992; 37: 691–694.
10.
FerrarioV.F., SforzaC., MianiA.Jr, TartagliaG.. Mathematical definition of the shape of dental arches in human permanent healthy dentitions.Eur J Orthod1994a; 16: 287–294.
11.
FerrarioV.F., SforzaC., PoggioC.E., CovaM., TartagliaG.. Preliminary evaluation of an electromagnetic three-dimensional digitizer in facial anthropometry.Cleft Palate Craniofac J1998; 35: 9–15.
12.
FerrarioV.F., SforzaC., PoggioC.E., SchmitzJ.H.. A three-dimensional study of growth and development of the nose.Cleft Palate Craniofac J1997b; 34: 309–317.
13.
FerrarioV.F., SforzaC., PoggioC.E., SchmitzJ.H., ColomboA.. Soft tissue facial morphology related to headform: a three-dimensional quantitative analysis in childhood.J Craniofac Genet Dev Biol1997c; 17: 86–95.
14.
FerrarioV.F., SforzaC., SerraoG., PulettoS., BignottoM., TartagliaG.. Comparison of soft tissue facial morphometry in children with Class I and Class II occlusions.Int J Adult Orthod Orthognath Surg1994b; 9: 187–194.
15.
HarrisE.F.. A longitudinal study of arch size and form in untreated arches.Am J Orthod Dentofac Orthop1997; 111: 419–427.
KramerG.J.C., HoeksmaJ.B., Prahl-AndersenB.. Palatal changes after lip surgery in different types of cleft lip and palate.Cleft Palate Craniofac J1994; 31: 376–384.
18.
KurodaT., MotohashiN., TominagaR., IwataK.. Three-dimensional dental cast analyzing system using laser scanning.Am J Orthod Dentofac Orthop1996; 110: 365–369.
19.
LadnerP.T., MuhlZ.F.. Changes concurrent with orthodontic treatment when maxillary expansion is a primary goal.Am J Orthod Dentofac Orthop1995; 108: 184–193.
20.
LundströmA.. Some asymmetries of the dental arches, jaws, and skull, and their etiological significance.Am J Orthod1961; 47: 81–106.
21.
MerzM.L., IsaacsonR.J., GermaneN., RubensteinL.K.. Tooth diameters and arch perimeters in a black and a white population.Am J Orthod Dentofac Orthop1991; 100: 53–58.
22.
NummikoskiP., PrihodaT., LanglaisR.P., McDavidW.D., WelanderU., TronjeG.. Dental and mandibular arch widths in three ethnic groups in Texas: a radiographic study.Oral Surg Oral Med Oral Pathol1988; 65: 609–617.
23.
ProcházkováJ., VinšováJ.. Craniofacial morphology as a marker of predisposition to isolated cleft palate.J Craniofac Genet Dev Biol1995; 15: 162–168.
24.
RichardsL.C., TownsendG.C., BrownT., BurgessV.B.. Dental arch morphology in South Australian twins.Arch Oral Biol1990; 35: 983–989.
25.
SeckelN.G., van der TweelI., ElemaG.A., SpeckenTFJMC. Landmark positioning on maxilla of cleft lip and palate infant—a reality?Cleft Palate Craniofac J1995; 32: 434–441.
26.
WestlingL., MohlinB.. Palatal dimensions and some inherited factors (body height and metacarpal index).Swed Dent J1996; 20: 141–149.
27.
WoodB.A., LiY., WilloughbyC.. Intraspecific variation and sexual dimorphism in cranial and dental variables among higher primates and their bearing on the hominid fossil record.J Anat1991; 174: 185–205.
28.
YounesS., El AngbawiM.F., Al DosariA.M.. A comparative study of palatal height in a Saudi and Egyptian population.J Oral Rehabil1995; 22: 391–395.
