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| Author(s): |
Carla Ruffeil Moreira
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | Bauru. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Odontologia de Bauru (FOB/SDB) |
| Defense date: | 2005-04-25 |
| Examining board members: |
Jose Humberto Damante;
Gerson Francisco de Assis;
Marilena Chinali Komesu
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| Advisor: | Jose Humberto Damante |
| Field of knowledge: | Health Sciences - Dentistry |
| Indexed in: | Banco de Dados Bibliográficos da USP-DEDALUS; Biblioteca Digital de Teses e Dissertações - USP |
| Location: | Universidade de São Paulo (USP). Faculdade de Odontologia de Bauru; FOB; M813a |
| Abstract | |
The aim of this study was to evaluate quantitative morphological age- and gender-related changes in human sublingual glands. Ninety right human sublingual glands from necropsies were distributed by gender and age groups for morphometric analysis of the glandular components and volume. Individuals with ages ranging from 7 months to 92 years were divided into Groups I (0-30 years), II (31-60 years) and III (61-92 years). The quantifications were realized under light microscopy at x40 using a Kpl ocular x8 with a graticule constituted by 100 symmetrical points. The proportional volume of acini, ducts, stroma, adipose tissue and septa were counted on fifty one histological fields for each gland, selected by systematic sampling. The proportional volume of acini was reduced by 56.35% (p< 0.0001) and by 35% in the septa (p< 0.0001), being replaced partly by an increase of 59.79%, 517.82% and 738.36% in the proportional volume of ducts (p= 0.0275), stroma (p< 0.0001) and adipose tissue (p< 0.0001), respectively. The glandular volume decreased, on average, 33.73% (p= 0.0005). No significant difference was observed between genders (p> 0.05). The decrease of parenchyma is accompanied by an increase of stroma with aging. (AU) | |