Observational studyActa odontologica latinoamericana : AOL2025
Palatal height, thickness and density according to facial biotype in Peruvian adults: a tomographic study.
Observational study in Acta odontologica latinoamericana : AOL, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Micro-screw stability requires adequate bone quantity and quality. Micro-screws are often placed inthe hard palate, in which anatomy may vary according to vertical growth.
aimTo compare the height,width and density of the palate according to facial biotype using cone beam computed tomography(CBCT). MATERIALS AND
methodObservational cross-sectional study on a sample of 39 CBCT scansof adults aged 18 to 50 years (19 females and 20 males) assigned to facial biotypes according to SNGoGn. The height (mm), cortical width (mm) and density in Hounsfield units (HU) were measured at 20coordinates on the left side of the palate coordinates corresponding to the combinations of four pointsmedial to the suture (3, 5, 7 and 9 mm) and five points posterior to the incisive foramen (3, 6, 9, 12 and15 mm). ANOVA and Kruskal-Wallis tests were used for statistical analysis at a significance level of p< 0.05.
resultsValues were: hypodivergent (height: 2.16 - 6.32 mm; width: 1.61 - 2.02 mm; density:1117.28 - 1182.83 HU), normodivergent (height: 2.71 - 9.21 mm; width: 1.67 - 2.08 mm; density:1106.53 - 1177.86 HU) and hyperdivergent (height: 2.37 - 12.32 mm; width: 1.62 - 2.07 mm; density:1088.2 - 1156.7 HU). Compared to hyperdivergent subjects, in hypodivergent individuals 60% of themeasurement points had lower heights and 15% of measurement points showed thinner, denser cortices,with significant differences (p <0.05).
conclusionFacial biotypes were found to be associated withpalate bone characteristics, with greater cortical heights and widths in hyperdivergent subjects andgreater densities in hypodivergent subjects.
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