In vitro validation of a hand-held optical reflectometer to measure clinically observed erosive tooth wear

Saads Carvalho, Thiago; Assunção, Cristiane Meira; Jost, Fabian Nicolas; Bürgin, Walter Bruno; Rodrigues, Jonas Almeida; Lussi, Adrian (2016). In vitro validation of a hand-held optical reflectometer to measure clinically observed erosive tooth wear. Lasers in medical science, 31(6), pp. 1105-1112. Springer 10.1007/s10103-016-1957-0

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In this study, we analyzed a newly developed optical reflectometer for measuring erosive tooth wear (ETW) in vitro. Three examiners independently assessed the labial surface of 80 deciduous canines and 75 permanent incisors. One examiner performed visual examinations (BEWE), and the other two used the optical pen-size reflectometer to measure surface reflection intensity (SRI) on the same labial surfaces. The examinations were made in duplicate with at least 1 week interval. Intra- and inter-rater agreements were calculated using weighted kappa analysis for BEWE, and intra-class correlation coefficients (ICC) as well as Bland-Altman plots for SRI. The teeth were separated into without (BEWE 0) or with (BEWE 1-3) ETW, and SRI cut-off points were calculated. Intra-rater agreement for the visual examination was 0.46 and 0.82 for deciduous and permanent teeth, respectively. Inter-rater and intra-rater agreement for SRI were good (ICC > 0.7; p < 0.001). SRI measurements produced high specificity values for deciduous and permanent teeth (≥0.74 and ≥ 0.84, respectively), and lower sensitivity values (≥0.37 and ≥ 0.64, respectively), but permanent teeth had generally higher SRI values (p < 0.05). We observed a significant association between BEWE and SRI (p < 0.05). The optical pen-size reflectometer was able to adequately differentiate ETW on permanent teeth, with highly reliable and reproducible measurements, but ETW on deciduous teeth was less accurately differentiated. The reflectometer is a good candidate for clinical research.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > School of Dental Medicine, Research
04 Faculty of Medicine > School of Dental Medicine

UniBE Contributor:

Saads Carvalho, Thiago; Jost, Fabian Nicolas; Bürgin, Walter Bruno and Lussi, Adrian

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0268-8921

Publisher:

Springer

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

13 Feb 2017 15:08

Last Modified:

13 Feb 2017 15:08

Publisher DOI:

10.1007/s10103-016-1957-0

PubMed ID:

27184156

Uncontrolled Keywords:

Basic erosive wear examination (BEWE); Dental erosion; Diagnostics; Permanent teeth; Primary teeth; Reflectometer

BORIS DOI:

10.7892/boris.91323

URI:

https://boris.unibe.ch/id/eprint/91323

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