Three-Dimensional Palatal Development between 3 and 6 Years

Abstract

Objective: To measure palatal landmarks of healthy nonpatient children aged 3 to 6 years with a normal deciduous dentition and to evaluate palatal shape independent of size. Materials and Methods: Fifty-eight dental casts of children with a normal and complete deciduous dentition were obtained and digitized with a computerized 3D instrument. At all ages, male and female data did not differ (Student's t-test), so the pooled values were considered. Dimensions were compared between ages by analyses of variance. Results: Palatal slope and height increased significantly as a function of age (P Ͻ .001). Palatal length did not change with age (average: 23.1 mm). In the frontal plane, the intermolar width increased slightly with age by about 1.8 mm at the second molars, 1.1 mm at the first molars, and 0.9 mm at the canines. Palatal height in the frontal plane did not change in the posterior part of the palate, but decreased anteriorly. The intercanine distance increased by 0.9 mm with age. However, this change did not reach statistical significance. Conclusions: Between 3 and 6 years of age, palatal shape changed and became proportionally higher in both the frontal and sagittal planes.

Palate morphology of bruxist children with mixed dentition. A pilot study

“…The major limitation of landmark-based methods seems to be the reduced number of digitized landmarks, which approximates the analysed structure neglecting most information (22,24). In this investigation, palatal morphology was analysed along four left-right curves (third, fourth, fifth and sixth teeth) and one anterior-posterior curve (approximately corresponding to the palatal midline), thus supplying a sufficient approximation of its size and shape characteristics (23,24). The width of the upper arch had been previously estimated with single measurements like the intercanine distance (37), and correlated to habits and some para-functions, such as dummy-sucking, finger-sucking habit, oral breathing (38), breast and bottle sucking (37), but not with bruxism.…”

Variability in palatal shape and size in patients with bilateral complete cleft lip and palate assessed using dense surface model construction and 3D geometric morphometrics

“…In addition to the morphologic consequences of facial clefts, abnormalities in palate formation and the dentoalveolar arch have serious functional consequences in terms of speech, mastication, the mode of breathing, swallowing, and Eustachian tube function (Ciusa et al, 2007).…”

Avaliação da profundidade do palato duro: correlação entre método quantitativo e qualitativo

“…In order to enhance reliability of data of the miofunctional examining it can be observed a trend of studies in the area in suggesting methods for quantitative analysis of combined data measured in qualitative evaluation 5,[11][12][13][14] . Obtaining these dimensions of the hard palate can be performed by measuring with tridimensional orthodontic compass (Korkhaus) in casts 15 or in the oral cavity of the patient 16,17 ; through 18 millimeter ruler; scanned tridimensional measurement 19 , or a caliper in plaster models 4,13,14,20 . The present study aimed to investigate the correlation between quantitative and qualitative methods of evaluation of the depth of the hard palate.…”