Cementum thickness in multirooted human molars: a histometric study by light microscopy

Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft
Iztok StamfeljDominik Gaspersic

Abstract

Cementum distribution was studied on transversely sectioned roots of 33 three-rooted maxillary and 33 two-rooted mandibular permanent molars. The roots were sectioned at a level midway between furcation and apical region. Cementum thickness was measured at the midpoint of each of the four root surfaces and at a site exhibiting maximal cementum thickness. A reflected light microscope was used. Midpoint cementum thickness ranged between 5 and 800 microm in maxillary molars and between 5 and 700 microm in mandibular molars. Maximal cementum thickness ranged between 25 and 1140 microm in maxillary molars and between 20 and 700 microm in mandibular molars. The results indicate that cementum tends to accumulate along interradicular surfaces of multirooted molars. In addition, a tendency was noted for more cementum to occur orally than vestibularly in roots of mandibular molars as well as in buccal roots of maxillary molars. Furthermore, this study indicates that cementum accumulates in root concavities (developmental depressions), although the exact mechanism still awaits a clear explanation. Previous studies have suggested that tensile forces stimulate cementum apposition. It may be assumed, however, that masticatory function and co...Continue Reading

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Citations

Aug 26, 2010·International Journal of Phytoremediation·A A Romeh
Nov 14, 2012·Journal of Endodontics·Sebastian BürkleinEdgar Schäfer
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Nov 20, 2016·International Journal of Dental Hygiene·E BozbayA Pilloni
Mar 19, 2021·Journal of Oral Science·Naoto OhbayashiTohru Kurabayashi

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