Effect of drying on the reproducibility of DIAGNOdent to detect caries-like lesions

Abstract

The aim of this study was to verify the drying effect on the reproducibility of DIAGNOdent (Dd) devices to detect caries-like lesions. Three areas were created in each of the 34 bovine incisors: sound (S), demineralized (DE) and remineralized (RE). One examiner measured each area with two Dd devices (denominated X and Y), twice under humid, and twice under dry condition. Intra-rater agreement according each device and inter-device agreement were estimated by kappa statistics (κ). Intra-rater agreement for device Y was substantial under humid (κ DE =0.68 and κ RE+S =0.68) and dry condition (κ DE =0.64 and κ RE+S =0.67). For device X, it was substantial under humid condition (κ DE =0.57 and κ RE+S =0.49), and it was almost perfect after air drying (κ DE =1.0 and κ RE+S =1.0). Inter-device agreement was slight (κ =0.17) under humid condition, and it was substantial under dry condition (κ =0.62). As reproducibility increased under dry condition, drying is advised to detect caries-like lesions on free smooth surfaces when different devices are used.

Pen-type laser fluorescence device versus bitewing radiographs for caries detection on approximal surfaces

“…In vitro studies have shown that the cavitation rate of inner enamel and outer dentine increases from 11 to 66 % and 65 to 100 % when the radiolucency has reached the outer half of dentine [27–29]. The use of BW as the gold standard in this study conformed with other studies having similar study designs [4, 8].…”

“…The use of BW as the gold standard in this study conformed with other studies having similar study designs [4, 8]. Furthermore, as several studies have shown LF to have a good reproducibility [8, 29, 30], it was not considered necessary to reconfirm the reproducibility of the LF pen. The examiner was found to have a good reproducibility.…”

Comparación de tres agentes remineralizantes utilizados en lesiones de manchas blancas en premolares medidos con fluorescencia láser: un estudio in vitro

“…La duración del estudio experimental in vitro fue de 34 días y se realizaron 2 mediciones, la medición posdesmineralización (M1), y la medición en el día 30 de la aplicación de los agentes remineralizantes (M2). Las mediciones fueron realizadas utilizando el DIAGNOdent pen 2190, cada muestra antes de la respectiva medición se secó con aire de la jeringa triple durante 10 segundos debido a que la reproducibilidad del dispositivo aumenta en condiciones de sequedad, según antecedentes (Pinelli et al, 2010) ( 19 ).…”

Comparison of Two Orthodontic Sealants in Prevention of Enamel Demineralization : An In-Vitro and In-Vivo Study

“…(41,49) Once the fluorescence as well as ambient light is captured by the device, any ambient light gets suppressed, and the fluorescent light is registered to give a numeric value between 0 and 99. (41) Drying the tooth surface for 10 seconds increases the accuracy and reproducibility, (12) and its intra-examiner agreement has been shown to be very high (0.96) with moderately high inter-examiner agreement (0.75). (51) Croll and Tyma acknowledge the ingenuity of the device; however, they also emphasize that clinicians should utilize it as confirming information to other procedures, including clinical observation, tactile examination, and radiographic evaluation.…”

“…However, other methods have been utilized in several studies: computerized image analysis from digital photographs, (4) microhardness testing, (2,5) polarized light microscopy, (6) confocal microscopy, (7,8) and laser fluorescence. (9)(10)(11)(12) Several approaches have been advocated to prevent demineralization during orthodontic treatments: enforced oral hygiene regimen, (13) argon laser irradiation, (14) micro-abrasion, (15) and use of fluoride. (3,(16)(17)(18) Fluoride has demonstrated its superior capacity to protect enamel surfaces, and many forms of fluoride have been incorporated for clinical benefits.…”