Comparison of involutional changes on maxilla and mandible (CROSBI ID 695026)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa
Podaci o odgovornosti
Bilandžić, Joško ; Hrkač, Stela ; Štoković, Nikola ; Grgurević, Lovorka
engleski
Comparison of involutional changes on maxilla and mandible
Background. Dimensions and shape of maxilla and mandible are highly influenced by the presence of teeth and force produced by masticatory muscles. As a consequence both dimensions and shape might change with aging. Aim. Our goal was to compare the extent of these changes between maxilla and mandible. Material and Methods. We examined 169 maxillae and 42 mandibles (age range 20–80 years) using digital caliper. There were 14 measures on maxilla and 11 measures on mandible. Measures were labeled as vertical, horizontal or sagittal in order to study growth in three dimensions. Bones were divided into three groups based on presence of teeth and alveolar process: group 1 — completely preserved teeth and alveolar process ; group 2 — partialy preserved teeth or alveolar process ; group 3 — all teeth lost and alveolar process completely resorbed. Results and Discussion. In both maxilla and mandible only vertical measures showed significant change with aging. On the maxilla all vertical measures in group 3 decreased when compared to group 1. Decrease ranged from 8% to 17%. Group 2 didn’t show significant changes when compared to group 1. On the other hand on mandible only those vertical measures containg alveolar process component decreased. Decrease was significant in both group 2 (ranging from 4.5 and 20%) and group 3 (ranging from 22.5 and 59%). Conclusions. Teeth loss causes vertical dimensions regression on both maxilla and mandible, whereas change of masticatory muscles function with aging plays minor role. The impact of teeth loss is more profound on mandible than on maxilla.
maxilla ; mandible ; alveolar process ; teeth loss ; involutional changes
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Podaci o prilogu
23-23.
2018.
objavljeno
Podaci o matičnoj publikaciji
Morphology, 10th International Symposium of Clinical and Applied Anatomy (ISCAA)
Sankt Peterburg: Aesculapius
1026-3543
Podaci o skupu
10th International Symposium on Clinical and Applied Anatomy (ISCAA)
poster
13.09.2018-16.09.2018
Moskva, Ruska Federacija