Determination of tooth-size discrepancy and Bolton ratios using bibliocast Cécile3 digital models.
Summary of "Determination of tooth-size discrepancy and Bolton ratios using bibliocast Cécile3 digital models."
The purpose of this study was to compare digitized models with their current gold-standard plaster models for tooth-size discrepancy and Bolton analysis. Fifteen pairs of plaster models were obtained from orthodontic patients with permanent dentition. These were digitized and evaluated using the Bibliocast Cécile3 v2.5 software. Two examiners measured three times the mesiodistal width of all the teeth and the arch length, and determined the tooth-size discrepancy and Boltons ratios. The plaster models were measured using a digital vernier caliper. Interclass correlation (ICC), mean differences and paired t-tests were used for comparisons and statistical analysis. The ICC of the digital models were 0.930 (0.852
Affiliation
MSc Student, Orthodontic Post Graduate Program, School of Dentistry, University of São Paulo, São Paulo, Brazil.
Journal Details
This article was published in the following journal.
Name: International orthodontics / College europeen d'orthodontie
ISSN: 1879-680X
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20739241
- DOI: http://dx.doi.org/10.1016/j.ortho.2010.07.014
Medical and Biotech [MESH] Definitions
Tooth Abrasion
The pathologic wearing away of the tooth substance by brushing, bruxism, clenching, and other mechanical causes. It is differentiated from TOOTH ATTRITION in that this type of wearing away is the result of tooth-to-tooth contact, as in mastication, occurring only on the occlusal, incisal, and proximal surfaces. It differs also from TOOTH EROSION, the progressive loss of the hard substance of a tooth by chemical processes not involving bacterial action. (From Jablonski, Dictionary of Dentistry, 1992, p2)
Tooth Attrition
The wearing away of a tooth as a result of tooth-to-tooth contact, as in mastication, occurring only on the occlusal, incisal, and proximal surfaces. It is chiefly associated with aging. It is differentiated from TOOTH ABRASION (the pathologic wearing away of the tooth substance by friction, as brushing, bruxism, clenching, and other mechanical causes) and from TOOTH EROSION (the loss of substance caused by chemical action without bacterial action). (Jablonski, Dictionary of Dentistry, 1992, p86)
Tooth Crown
The upper part of the tooth, which joins the lower part of the tooth (TOOTH ROOT) at the cervix (TOOTH CERVIX) at a line called the cementoenamel junction. The entire surface of the crown is covered with enamel which is thicker at the extremity and becomes progressively thinner toward the cervix. (From Jablonski, Dictionary of Dentistry, 1992, p216)
Tooth, Artificial
A fabricated tooth substituting for a natural tooth in a prosthesis. It is usually made of porcelain or plastic.
Tooth Cervix
The constricted part of the tooth at the junction of the crown and root or roots. It is often referred to as the cementoenamel junction (CEJ), the line at which the cementum covering the root of a tooth and the enamel of the tooth meet. (Jablonski, Dictionary of Dentistry, 1992, p530, p433)
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