The Open Dentistry Journal

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Morphological and Functional Parameters in Patients with Tooth Wear before and after Treatment

Teresa Sierpinska*, Joanna Kuc , Maria Golebiewska
Department of Prosthetic Dentistry, Medical University of Bialystok, Poland


Advanced tooth wear often results in lost vertical dimension and impacts facial aesthetics. Complex restorative treatment can replace the lost tooth structure and improve functional occlusal and facial skeleton parameters.


The aim of the study is to assess changes in the morphological and functional occlusal parameters of the facial skeleton after prosthetic rehabilitation that increased lost occlusal vertical dimension.

Material and Methodology:

50 patients with advanced tooth wear were clinically examined, to assess the degree of wear. Each subject underwent cephalometric analysis, digital occlusal analysis, and electromyographic analysis, of the anterior temporalis, superficial masetter, anterior digastric, and the sternocleidomastoid muscles. Prosthodontic treatment was performed to restore the occlusal vertical dimension of each subject’s occlusion, which was followed by repeating the pretreatment analyses. Pre and post treatment parameters were statistically compared.


Pre-treatment cephalometric analysis showed that lost vertical dimension reduced anterior facial height and resulted in small angular skeletal parameters. Post treatment anterior facial height increased from the increased occlusal vertical dimension. The mean value of functional electrical activity during clenching post treatment, increased compared to pretreatment.


Increasing the vertical dimension of occlusion improved facial aesthetics by positively affecting facial skeletal angles. The restored occlusal surface morphology changed the pre treatment flat broad occlusal contacts into more point contacts. The increased vertical dimension of occlusion after treatment also increased muscle activity levels over the pretreatment levels after three months period of adaptation.

Keywords: Cephalometric analysis, EMG, occlusal vertical dimension, rehabilitation, tooth wear, T-Scan.

Article Information

Identifiers and Pagination:

Year: 2013
Volume: 7
First Page: 55
Last Page: 61
Publisher Id: TODENTJ-7-55
DOI: 10.2174/1874210601307010055

Article History:

Received Date: 18/12/2012
Revision Received Date: 24/2/2013
Acceptance Date: 6/3/2013
Electronic publication date: 17/5/2013
Collection year: 2013

© Sierpinska et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Prosthetic Dentistry, Medical University of Bialystok, M. Sklodowska-Curie Str. 24a, 15-276 Bialystok, Poland; Tel: 048 85 7468349; Fax: 048857447030; E-mail:

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