Comparison of Quantitative light-induced fluorescence-digital (QLF-D) images and images of disclosed plaque for planimetric quantification of dental plaque in multibracket appliance patients

Abstract

the purpose of the present cross-sectional clinical study was to check the ability of plaque detection and quantification by QLF-D against conventional digital photographs of disclosed plaque in multibracket appliance (MB) patients. 20 patients were included according to the following criteria: (1) upper and lower jaw treated by MB appliance, (2) patients being 16 years of age or older, (3) all central and lateral incisors as well as canines in situ, (4) absence of developmental defects, carious lesions, surface fillings, prosthetic restorations or recessions greater than 1/3 of root length in central/lateral incisors and canines as well as (5) declaration of consent. QLF-D and conventional photographs were analyzed planimetrically regarding plaque coverage on buccal and oral surfaces of central/lateral incisors and canines. the conventional photographs of stained plaque served as gold standard. on average, in QLF-D pictures 20.7% ± 17.4 of the tooth surfaces were covered with plaque, while the conventional photographs of disclosed plaque presented a mean plaque-covered area of 36.2% ± 23.5. The Bland-Altman plot for both imaging modalities showed a very large inconsistent scattering with both negative and positive deviations. the method discrepancy increased with increasing plaque coverage, thus indicating a systematic method error. on average, the deviation of the methods from the optimal line of accordance was −15.5%. In patients wearing MB appliances, there was no clinical significant agreement regarding the plaque-covered tooth surface depicted by QLf-D respectively conventional images of disclosed plaque. Due to the large method discrepancy, QLf-D is currently not reliable for precise plaque quantification in MB patients. Plaque control during multibracket appliance (MB) treatment is a special challenge because a MB inevitably increases the number of retentive niches for plaque accumulation. Detection and quantification of dental plaque plays an important role in everyday practice, both for patients' education and motivation. In addition, it is also important for clinical research. Due to the buccal and/or lingual attachments and wires of a MB appliance, modified plaque indices have been developed for use in orthodontic patients 1,2. Although plaque indices allow for a fast assessment of the amount and localization of plaque, they have their disadvantages especially for research purposes, as due to their subjective nature time-and cost-intensive examiner training for calibration and reliability is required. Furthermore, the comparison of different study results is hindered by the variety of indices used. In addition, due to their ordinal scaled nature, the discriminating capacity of some indices is insufficient because of their limited number

Chlorhexidine Versus Organoselenium for Inhibition of S.Mutans Biofilm, an Invitro Study

“…QLF can be unreliable for disclosing tooth surfaces covered with plaque. 29 However in the study by Amaechi et al (2019) 26 , he did report that the organoselenium sealant( Denteshield TM )did have excellent retention at 12 months. Hammad et al(2016) 30 also found plaque could still form around the buccal surfaces of the teeth despite the application of an organoselenium sealant.…”

A fast and reliable method for semi‐automated planimetric quantification of dental plaque in clinical trials

“…Some previous studies have used fluorescence images for PPI measurements (Coulthwaite et al, 2009; Ganss et al, 2020; Klaus et al, 2020), but plaque areas were typically determined manually using drawing tools in image editing software. A previously published semi‐automated approach relied on the use of fluorescein, a pH‐sensitive fluorescent dye that is excited by ultraviolet (UV) light (Sagel et al, 2000; Klukowska et al, 2011).…”

“…Mansoor et al (2015) proposed a semi‐automated method to detect and quantify undisclosed autofluorescent plaque using a dedicated software developed by them (Mansoor et al, 2015). The software, however, is not publicly available and the quantification of autofluorescent plaque significantly underestimates the total plaque accumulation, since not all oral bacteria exhibit autofluorescence (Ganss et al, 2020; Klaus et al, 2020).…”

Avaliação in vitro e in vivo de um sistema restaurador resinoso isento de Bisfenol-A, adaptado para uso na fixação de bráquetes ortodônticos

“…Assim, estes dados demonstraram que o uso de materiais isentos de BPA para a colagem de bráquetes pode contribuir para o acúmulo mais brando de biofilme e seus desfechos nos tecidos periodontais, inferindose que a ausência de monômeros que liberam BPA possa interferir no padrão de acúmulo de biofilme. Na literatura específica há estudos apenas in vitro, associando os monômeros utilizados nos materiais de uso odontológico e a formação de biofilme dentário (Badawi et al, 2003;Faltermeier et al, 2007;Nedeljkovic et al, 2017) (Martignon et al, 2010;Rego et al, 2010;Peng et al, 2014;Jayanthi et al, 2015; Walsh e Healey 2019; Klaus et al, 2020).…”

“…Associado a isso, a evidenciação colorimétrica do biofilme, isoladamente ou combinada com outras técnicas, pode ser considerada como uma medida motivacional e educacional aos pacientes e seu núcleo familiar (Zotti et al, 2016;Huang et al, 2018b;Fasoulas et al, 2019;Saxena e Gunjal, 2021). No entanto, há poucas pesquisas incluindo pacientes adolescentes em tratamento ortodôntico fixo e o uso de agente evidenciador de biofilme (Boyd, 1983;Peng et al, 2014;Klaus et al, 2020;Oliveira et al, 2021b).…”